Notebookcheck

Fujitsu LifeBook U758 (i7-8650U, UHD) Laptop Review

Sebastian Bade, 👁 Andreas Osthoff, Stefanie Voigt (translated by Katherine Bodner), 05/09/2018

A lot of features! The business segment is a busy market and Fujitsu is trying to join it with its LifeBook U758. Its specifications are very promising. Find out if the well-equipped notebook can keep up with its competition in our review.

As with the recently tested LifeBook U748, Fujitsu has decided to limit its upgrade of the LifeBook 758 to its insides. Our test unit has been given a lot of features and is the highest configuration available. It has an Intel Core i7-8650U paired with 32 GB of DDR4 RAM, and a 1-TB SSD. This is an impressive basis and should offer sufficient performance reserves at all times. On top of that, the device offers a lot of security features and a matte 4K display. Of course, all this comes at a price: The starting price for the lowest configuration is $1200. Please note: The tested configuration does not seem to be available in the US at the time of writing.

The LifeBook U758 does not have it easy as there is a lot of competition that also offers good performance. There is a list of comparison devices we have chosen for this review in the table below. The ThinkPad T580 and HP EliteBook 850 G5 are the most important competitors for the LifeBook U758, but Dell and Schenker also have comparably strong 15-inch devices available.

Lenovo ThinkPad T580 HP EliteBook 850 G5 Dell Latitude 5590 Schenker Slim 15 Fujitsu LifeBook U757
CPU Intel Core i7-8550U Intel Core i5-8250U Intel Core i5-8250U Intel Core i7-8550U Intel Core i5-7200U
GPU GeForce MX 150 Intel UHD Graphics 620 Intel UHD Graphics 620 Intel HD Graphics 620 Intel HD Graphics 620
Display 15.6 inches 3840x2160 (IPS) 15.6 inches 1920x1080 (IPS) 15.6 inches 1920x1080 (IPS) 15.6 inches 1920x1080 (IPS) 15.6 inches 1920x1080 (IPS)
RAM 8 GB DDR4 8 GB DDR4 8 GB DDR4 16 GB DDR4 8 GB DDR4
Storage 512-GB SSD 256-GB SSD 128-GB SSD 512-GB SSD -GB SSD
Rating 89 % 89 % 86 % 83 % 86 %
Fujitsu LifeBook U758
Graphics adapter
Intel UHD Graphics 620, 22.20.16.4836
Memory
32768 MB 
, DDR4-2400 SO-DIMM, 2 of 2 slots occupied, 32 GB max
Display
15.6 inch 16:9, 3840 x 2160 pixel 282 PPI, LG, LP156UD1-SPB1, IPS, glossy: no
Mainboard
Intel Kaby Lake-U iHDCP 2.2 Premium PCH
Storage
Toshiba KXG5AZNV1T02, 1024 GB 
, M.2 SSD (NVMe), 903 GB free
Soundcard
Realtek High Definition Audio
Connections
3 USB 3.0 / 3.1 Gen1, 1 VGA, 1 HDMI, 1 DisplayPort, 1 Kensington Lock, 1 Docking Station Port, Audio Connections: 3.5-mm combined audio jack, Card Reader: 3-in-1 SD card reader, 1 SmartCard, 1 Fingerprint Reader
Networking
Intel Ethernet Connection I219-LM (10/100/1000MBit), Intel Dual Band Wireless-AC 8265 (a/b/g/n/ac), Bluetooth 4.2, Sierra EM7305, LTE
Size
height x width x depth (in mm): 19.2 x 378 x 256 ( = 0.76 x 14.88 x 10.08 in)
Battery
50 Wh, 3310 mAh Lithium-Ion
Operating System
Microsoft Windows 10 Pro 64 Bit
Camera
Webcam: HD webcam
Additional features
Speakers: stereo speakers, Keyboard: 6 row chiclet, Keyboard Light: yes, Recovery DVD, Cyberlink YouCam 6, Lifebook Application Panel, McAfee LiveSafe, Microsoft Office (trial version), 24 Months Warranty
Weight
1.689 kg ( = 59.58 oz / 3.72 pounds), Power Supply: 370 g ( = 13.05 oz / 0.82 pounds)
Price
2.500 EUR
Note: The manufacturer may use components from different suppliers including display panels, drives or memory sticks with similar specifications.

 

Fujitsu LifeBook U758
Fujitsu LifeBook U758
Fujitsu LifeBook U758
Fujitsu LifeBook U758
Fujitsu LifeBook U758
Fujitsu LifeBook U758
Fujitsu LifeBook U758
Fujitsu LifeBook U758
Fujitsu LifeBook U758
Fujitsu LifeBook U758
Fujitsu LifeBook U758
Fujitsu LifeBook U758
Fujitsu LifeBook U758
Fujitsu LifeBook U758
Fujitsu LifeBook U758
Fujitsu LifeBook U758
Fujitsu LifeBook U758
Fujitsu LifeBook U758
Fujitsu LifeBook U758
Fujitsu LifeBook U758
Fujitsu LifeBook U758

Size Comparison

Connectivity


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left: power supply, VGA, USB 3.0 Type-C Gen1, USB 3.0 Type-A, smart card reader
left: power supply, VGA, USB 3.0 Type-C Gen1, USB 3.0 Type-A, smart card reader
right: combined audio jack, UBS 3.0 Type-A, DisplayPort, HDMI, Ethernet, Kensington Lock
right: combined audio jack, UBS 3.0 Type-A, DisplayPort, HDMI, Ethernet, Kensington Lock
front: status LEDs, SD card reader
front: status LEDs, SD card reader
back: ventilation slots
back: ventilation slots
SDCardreader Transfer Speed
average JPG Copy Test (av. of 3 runs)
Dell Latitude 5590
  (Toshiba Exceria Pro SDXC 64 GB UHS-II)
178.2 MB/s ∼100% +138%
Schenker Slim 15 L17
  (Toshiba Exceria Pro SDXC 64 GB UHS-II)
77.8 MB/s ∼44% +4%
Lenovo ThinkPad T580-20LAS01H00
  (Toshiba Exceria Pro SDXC 64 GB UHS-II)
77.8 MB/s ∼44% +4%
Fujitsu LifeBook U758
  (Toshiba Exceria Pro SDXC 64 GB UHS-II)
74.8 MB/s ∼42%
Fujitsu LifeBook U757
  (Toshiba Exceria Pro SDXC 64 GB UHS-II)
74 MB/s ∼42% -1%
Average of class Office
  (10.2 - 191, n=232)
60.8 MB/s ∼34% -19%
maximum AS SSD Seq Read Test (1GB)
Dell Latitude 5590
  (Toshiba Exceria Pro SDXC 64 GB UHS-II)
203.3 MB/s ∼100% +140%
Schenker Slim 15 L17
  (Toshiba Exceria Pro SDXC 64 GB UHS-II)
85.6 MB/s ∼42% +1%
Lenovo ThinkPad T580-20LAS01H00
  (Toshiba Exceria Pro SDXC 64 GB UHS-II)
85.4 MB/s ∼42% +1%
Fujitsu LifeBook U758
  (Toshiba Exceria Pro SDXC 64 GB UHS-II)
84.8 MB/s ∼42%
Fujitsu LifeBook U757
  (Toshiba Exceria Pro SDXC 64 GB UHS-II)
82.6 MB/s ∼41% -3%
Average of class Office
  (9.5 - 255, n=209)
78 MB/s ∼38% -8%
Networking
iperf3 Client (receive) TCP 1 m 4M x10
Fujitsu LifeBook U757
Intel Dual Band Wireless-AC 8265
660 MBit/s ∼100% +3%
Fujitsu LifeBook U758
Intel Dual Band Wireless-AC 8265
640 MBit/s ∼97%
Lenovo ThinkPad T580-20LAS01H00
Intel Dual Band Wireless-AC 8265
638 MBit/s ∼97% 0%
Schenker Slim 15 L17
Intel Dual Band Wireless-AC 8265
620 MBit/s ∼94% -3%
HP EliteBook 850 G5 3JX58EA
Intel Dual Band Wireless-AC 8265
532 MBit/s ∼81% -17%
Average of class Office
  (5 - 688, n=174)
458 MBit/s ∼69% -28%
Dell Latitude 5590
Intel Dual Band Wireless-AC 8265
328 MBit/s ∼50% -49%
iperf3 Client (transmit) TCP 1 m 4M x10
HP EliteBook 850 G5 3JX58EA
Intel Dual Band Wireless-AC 8265
667 MBit/s ∼100% +26%
Fujitsu LifeBook U758
Intel Dual Band Wireless-AC 8265
530 MBit/s ∼79%
Fujitsu LifeBook U757
Intel Dual Band Wireless-AC 8265
522 MBit/s ∼78% -2%
Schenker Slim 15 L17
Intel Dual Band Wireless-AC 8265
499 MBit/s ∼75% -6%
Average of class Office
  (34 - 688, n=174)
425 MBit/s ∼64% -20%
Dell Latitude 5590
Intel Dual Band Wireless-AC 8265
250 MBit/s ∼37% -53%
Lenovo ThinkPad T580-20LAS01H00
Intel Dual Band Wireless-AC 8265
162 MBit/s ∼24% -69%

Display

subpixel array
subpixel array
visible clouding at the sides
visible clouding at the sides

There are four display options available, one of which is a touch display (FHD). Our Fujitsu test unit is equipped with a 4K display from LG. It has an average display brightness of 304 cd/m² and is not quite as bright as the screens of the EliteBook 850 G5 (383 cd/m²) and the Schenker Slim 15 (336 cd/m²). Due to the good black value (0.24) the LifeBook U758 reaches the best contrast ratio of the comparison at 1300:1. The test unit also offers a good brightness distribution of 93%, but there is still some visible clouding. This did not bother us during everyday use. Another advantage is that the LifeBook U758 manages to regulate screen brightness without the use of PWM.

311
cd/m²
301
cd/m²
305
cd/m²
293
cd/m²
312
cd/m²
289
cd/m²
308
cd/m²
307
cd/m²
306
cd/m²
Distribution of brightness
X-Rite i1Pro 2
Maximum: 312 cd/m² Average: 303.6 cd/m² Minimum: 15.4 cd/m²
Brightness Distribution: 93 %
Center on Battery: 315 cd/m²
Contrast: 1300:1 (Black: 0.24 cd/m²)
ΔE Color 3.4 | 0.4-29.43 Ø6.2, calibrated: 2.7
ΔE Greyscale 4 | 0.64-98 Ø6.5
94.1% sRGB (Argyll 3D) 60.9% AdobeRGB 1998 (Argyll 3D)
Gamma: 2.25
Fujitsu LifeBook U758
LG, LP156UD1-SPB1, 3840x2160, 15.6
Lenovo ThinkPad T580-20LAS01H00
NV156QUM-N44, 3840x2160, 15.6
HP EliteBook 850 G5 3JX58EA
AUO24ED, 1920x1080, 15.6
Dell Latitude 5590
NV15N42, 1920x1080, 15.6
Fujitsu LifeBook U757
LP156WF6-SPP1, 1920x1080, 15.6
Schenker Slim 15 L17
LG LP156WF6, 1920x1080, 15.6
Response Times
-17%
3%
-38%
8%
-2%
Response Time Grey 50% / Grey 80% *
38.4 (21.2, 17.2)
51.2 (24.4, 26.8)
-33%
42 (20, 22)
-9%
53.2 (26.8, 26.4)
-39%
36 (17.2, 18.8)
6%
40 (20.4, 19.6)
-4%
Response Time Black / White *
29.2 (18, 11.2)
29.6 (17.2, 12.4)
-1%
25 (14, 11)
14%
39.6 (23.2, 16.4)
-36%
26.4 (15.6, 10.8)
10%
29.2 (16.8, 12.4)
-0%
PWM Frequency
952.4 (99)
1000 (98)
20660 (99)
Screen
1%
-23%
-56%
-18%
-14%
Brightness middle
312
310
-1%
402
29%
243
-22%
313
0%
333
7%
Brightness
304
283
-7%
383
26%
234
-23%
294
-3%
336
11%
Brightness Distribution
93
87
-6%
88
-5%
83
-11%
84
-10%
93
0%
Black Level *
0.24
0.24
-0%
0.41
-71%
0.19
21%
0.27
-13%
0.3
-25%
Contrast
1300
1292
-1%
980
-25%
1279
-2%
1159
-11%
1110
-15%
Colorchecker DeltaE2000 *
3.4
3.1
9%
5.25
-54%
6.6
-94%
4.5
-32%
4.7
-38%
Colorchecker DeltaE2000 max. *
5.6
7.6
-36%
8.65
-54%
22.3
-298%
10.5
-88%
9.7
-73%
Colorchecker DeltaE2000 calibrated *
2.7
2.2
19%
5.19
-92%
5
-85%
Greyscale DeltaE2000 *
4
2.3
42%
4
-0%
5.2
-30%
4
-0%
3.5
12%
Gamma
2.25 98%
2.21 100%
2.68 82%
2.24 98%
2.24 98%
2.26 97%
CCT
6977 93%
6876 95%
6756 96%
6990 93%
6387 102%
6339 103%
Color Space (Percent of AdobeRGB 1998)
60.9
59.1
-3%
58
-5%
39.2
-36%
55.3
-9%
54.2
-11%
Color Space (Percent of sRGB)
94.1
90.1
-4%
89
-5%
60.8
-35%
84.74
-10%
82.7
-12%
Total Average (Program / Settings)
-8% / -2%
-10% / -19%
-47% / -53%
-5% / -13%
-8% / -12%

* ... smaller is better

Fujitsu LifeBook U758 vs. sRGB (94.1%)
Fujitsu LifeBook U758 vs. sRGB (94.1%)
Fujitsu LifeBook U758 vs. AdobeRGB (60.9%)
Fujitsu LifeBook U758 vs. AdobeRGB (60.9%)

The display quality is good and due to the high contrast ratio, colors do not appear washed out or weak. The color display is good out of the box, with low DeltaE2000 deviations. Calibrating improved these even more. You can download the suitable ICC profile above.

The color space coverage (sRGB: 94.1%, AdobeRGB: 60.9%) is good and more than sufficient for everyday business use. However, professional image processors will not be satisfied with the color space coverage and we can only recommend the display for semi-professional use.

CalMAN: gray scales (not calibrated)
CalMAN: gray scales (not calibrated)
CalMAN: ColorChecker (not calibrated)
CalMAN: ColorChecker (not calibrated)
CalMAN: color saturation (not calibrated)
CalMAN: color saturation (not calibrated)
CalMAN: gray scales (calibrated)
CalMAN: gray scales (calibrated)
CalMAN: ColorChecker (calibrated)
CalMAN: ColorChecker (calibrated)
CalMAN: color saturation (calibrated)
CalMAN: color saturation (calibrated)

All display variations have an anti-glare surface which minimizes reflections. Nonetheless, the LifeBook U758 has some difficulties when working outdoors, as the screen brightness is too low. Even in the shade, it is hard to read the screen and you will face restrictions when trying to work outside.

Fujitsu LifeBook U758 in shade
Fujitsu LifeBook U758 in shade
Fujitsu LifeBook U758 in the sun
Fujitsu LifeBook U758 in the sun

Display Response Times

Display response times show how fast the screen is able to change from one color to the next. Slow response times can lead to afterimages and can cause moving objects to appear blurry (ghosting). Gamers of fast-paced 3D titles should pay special attention to fast response times.
       Response Time Black to White
29.2 ms ... rise ↗ and fall ↘ combined↗ 18 ms rise
↘ 11.2 ms fall
The screen shows relatively slow response rates in our tests and may be too slow for gamers.
In comparison, all tested devices range from 0.8 (minimum) to 240 (maximum) ms. » 70 % of all devices are better.
This means that the measured response time is worse than the average of all tested devices (25.6 ms).
       Response Time 50% Grey to 80% Grey
38.4 ms ... rise ↗ and fall ↘ combined↗ 21.2 ms rise
↘ 17.2 ms fall
The screen shows slow response rates in our tests and will be unsatisfactory for gamers.
In comparison, all tested devices range from 0.9 (minimum) to 636 (maximum) ms. » 38 % of all devices are better.
This means that the measured response time is similar to the average of all tested devices (41 ms).

Screen Flickering / PWM (Pulse-Width Modulation)

To dim the screen, some notebooks will simply cycle the backlight on and off in rapid succession - a method called Pulse Width Modulation (PWM) . This cycling frequency should ideally be undetectable to the human eye. If said frequency is too low, users with sensitive eyes may experience strain or headaches or even notice the flickering altogether.
Screen flickering / PWM not detected

In comparison: 53 % of all tested devices do not use PWM to dim the display. If PWM was detected, an average of 8929 (minimum: 43 - maximum: 142900) Hz was measured.

The 4K IPS display produced good results in our viewing angle test. We only noticed a slight change in color in the four corner images. This does not have any implications for everyday use as it only occurs at very wide viewing angles.

viewing angles of the Fujitsu LifeBook U758
viewing angles of the Fujitsu LifeBook U758

Performance

Fujitsu has equipped our test unit with the Intel Core i7-8650U, the strongest model available. Together with the almost oversized working memory (32 GB of DDR4 RAM) and the enormous 1-TB SSD, buyers will get a very well-equipped device. The business companion also features useful security features such as a SmartCard reader and a PalmSecure sensor. We were also happy to see the two maintenance hatches. These will be useful if you choose not to buy the top configuration. 

The device is probably too powerful to concern itself only with office applications. But if you regularly work with virtual machines, you will appreciate the 32 GB of RAM and the large SSD.

CPU-Z
CPU-Z
CPU-Z
CPU-Z
CPU-Z
CPU-Z
GPU-Z
GPU-Z
DPC latencies
HWiNFO
Intel Extreme Utility
Intel Extreme Utility (benchmark)

Processor

The Intel Core i7-8650U is an energy-efficient quad-core SoC that is based on the Kaby Lake architecture. The four processor cores work at 1.9 - 4.2 GHz and have a TDP of 15 watts. Unfortunately, the processor cannot reach its full potential due to the weak cooling system, which leads to the Intel Core i5-8250U being faster than the significantly more expensive i7-8659U. The processor never has more than 25 watts available and therefore cannot compare to the comparison devices, even during short-term load. Our test unit won the comparison with the LifeBook U757, but then the Intel Core i5-7200U is only a dual-core processor.

You can find further benchmarks of the Intel Core i7-8659U here.https://www.notebookcheck.com/Mobile-Prozessoren-Benchmarkliste.1809.0.html

The Cinebench R15 Multi loop is used to find out how the processor works under continuous load. As you can see from the graph below, the Intel Core i7-8650U already drops to 474 points in the second round. After that, its performance settles down for the rest of the test. 

Overall, the performance of the Intel Core i7-8650U in the LifeBook U758 lies significantly below our expectations.

0102030405060708090100110120130140150160170180190200210220230240250260270280290300310320330340350360370380390400410420430440450460470480490500510520Tooltip
Cinebench R15 CPU Multi 64 Bit
Cinebench R15
CPU Single 64Bit
Average Intel Core i7-8650U
  (137 - 178, n=14)
169 Points ∼100% +23%
Schenker Slim 15 L17
Intel Core i7-8550U
168 Points ∼99% +23%
Lenovo ThinkPad T580-20LAS01H00
Intel Core i7-8550U
163 Points ∼96% +19%
Dell Latitude 5590
Intel Core i5-8250U
145 Points ∼86% +6%
HP EliteBook 850 G5 3JX58EA
Intel Core i5-8250U
144 Points ∼85% +5%
Fujitsu LifeBook U758
Intel Core i7-8650U
137 Points ∼81%
Fujitsu LifeBook U757
Intel Core i5-7200U
128 Points ∼76% -7%
Average of class Office
  (20 - 178, n=478)
108 Points ∼64% -21%
CPU Multi 64Bit
Dell Latitude 5590
Intel Core i5-8250U
696 Points ∼100% +36%
Lenovo ThinkPad T580-20LAS01H00
Intel Core i7-8550U
660 Points ∼95% +29%
Average Intel Core i7-8650U
  (447 - 675, n=16)
599 Points ∼86% +17%
HP EliteBook 850 G5 3JX58EA
Intel Core i5-8250U
588 Points ∼84% +15%
Schenker Slim 15 L17
Intel Core i7-8550U
515 Points ∼74% +1%
Fujitsu LifeBook U758
Intel Core i7-8650U
510 Points ∼73%
Fujitsu LifeBook U757
Intel Core i5-7200U
331 Points ∼48% -35%
Average of class Office
  (36 - 1050, n=482)
318 Points ∼46% -38%
Cinebench R11.5
CPU Single 64Bit
Average Intel Core i7-8650U
  (1.7 - 2.04, n=7)
1.94 Points ∼100% +14%
Schenker Slim 15 L17
Intel Core i7-8550U
1.91 Points ∼98% +12%
Fujitsu LifeBook U758
Intel Core i7-8650U
1.7 Points ∼88%
Dell Latitude 5590
Intel Core i5-8250U
1.65 Points ∼85% -3%
Average of class Office
  (0.23 - 2.04, n=417)
1.122 Points ∼58% -34%
CPU Multi 64Bit
Dell Latitude 5590
Intel Core i5-8250U
7.76 Points ∼100% +34%
Average Intel Core i7-8650U
  (5.77 - 7.24, n=7)
6.72 Points ∼87% +16%
Fujitsu LifeBook U758
Intel Core i7-8650U
5.77 Points ∼74%
Schenker Slim 15 L17
Intel Core i7-8550U
5.66 Points ∼73% -2%
Average of class Office
  (0.26 - 11.6, n=589)
2.73 Points ∼35% -53%
Cinebench R10
Rendering Single CPUs 64Bit
Schenker Slim 15 L17
Intel Core i7-8550U
8271 Points ∼100% +20%
Dell Latitude 5590
Intel Core i5-8250U
8153 Points ∼99% +19%
Fujitsu LifeBook U758
Intel Core i7-8650U
6864 Points ∼83%
Average Intel Core i7-8650U
 
6864 Points ∼83% 0%
Average of class Office
  (0.4 - 9027, n=430)
4229 Points ∼51% -38%
Rendering Multiple CPUs 64Bit
Dell Latitude 5590
Intel Core i5-8250U
28932 Points ∼100% +33%
Fujitsu LifeBook U758
Intel Core i7-8650U
21677 Points ∼75%
Average Intel Core i7-8650U
 
21677 Points ∼75% 0%
Schenker Slim 15 L17
Intel Core i7-8550U
20666 Points ∼71% -5%
Average of class Office
  (1.51 - 29780, n=427)
9658 Points ∼33% -55%
JetStream 1.1 - 1.1 Total Score
Schenker Slim 15 L17
Intel Core i7-8550U
250.44 Points ∼100% +8%
Average Intel Core i7-8650U
  (145 - 285, n=10)
243 Points ∼97% +5%
Lenovo ThinkPad T580-20LAS01H00
Intel Core i7-8550U
237.79 Points ∼95% +3%
Fujitsu LifeBook U758
Intel Core i7-8650U
230.98 Points ∼92%
Dell Latitude 5590
Intel Core i5-8250U
216.69 Points ∼87% -6%
HP EliteBook 850 G5 3JX58EA
Intel Core i5-8250U
208.69 Points ∼83% -10%
Fujitsu LifeBook U757
Intel Core i5-7200U
183.01 Points ∼73% -21%
Average of class Office
  (36.7 - 268, n=210)
175 Points ∼70% -24%
Octane V2 - Total Score
Schenker Slim 15 L17
Intel Core i7-8550U
36689 Points ∼100% +18%
Lenovo ThinkPad T580-20LAS01H00
Intel Core i7-8550U
32403 Points ∼88% +4%
Average Intel Core i7-8650U
  (11491 - 42822, n=6)
31479 Points ∼86% +1%
Dell Latitude 5590
Intel Core i5-8250U
31111 Points ∼85% 0%
Fujitsu LifeBook U758
Intel Core i7-8650U
31063 Points ∼85%
Average of class Office
  (3727 - 40798, n=200)
22215 Points ∼61% -28%
Mozilla Kraken 1.1 - Total Score
Average of class Office
  (914 - 9672, n=208)
2189 ms * ∼100% -102%
Dell Latitude 5590
Intel Core i5-8250U
1256.8 ms * ∼57% -16%
Average Intel Core i7-8650U
  (809 - 1912, n=7)
1150 ms * ∼53% -6%
Lenovo ThinkPad T580-20LAS01H00
Intel Core i7-8550U
1126.3 ms * ∼51% -4%
Fujitsu LifeBook U758
Intel Core i7-8650U
1082.7 ms * ∼49%
Schenker Slim 15 L17
Intel Core i7-8550U
971.7 ms * ∼44% +10%

* ... smaller is better

Cinebench R10 Shading 32Bit
7438
Cinebench R10 Rendering Single CPUs 64Bit
6864 Points
Cinebench R10 Rendering Multiple CPUs 64Bit
21677 Points
Cinebench R10 Shading 64Bit
7466 Points
Cinebench R10 Rendering Single 32Bit
5307
Cinebench R10 Rendering Multiple CPUs 32Bit
16921
Cinebench R11.5 CPU Multi 32Bit
5.31 Points
Cinebench R11.5 OpenGL 32Bit
38.76 fps
Cinebench R11.5 CPU Single 64Bit
1.7 Points
Cinebench R11.5 CPU Multi 64Bit
5.77 Points
Cinebench R11.5 OpenGL 64Bit
38.65 fps
Cinebench R11.5 CPU Single 32Bit
1.38 Points
Cinebench R15 CPU Single 64Bit
137 Points
Cinebench R15 Ref. Match 64Bit
97.8 %
Cinebench R15 OpenGL 64Bit
46.26 fps
Cinebench R15 CPU Multi 64Bit
510 Points
Help

System Performance

The poor CPU performance also means that the PCMark benchmark produces mixed results. Again, some of our comparison devices are significantly faster and push our test unit to the bottom ranks. In the new PCMark 10, the LifeBook U758 even has to accept last place.

Although the result is clearly not good, this does not mean that it is impossible to work with our test unit.

PCMark 8 Home
PCMark 8 Home
PCMark 8 Creative
PCMark 8 Creative
PCMark 8 Work
PCMark 8 Work
PCMark 8 Storage
PCMark 8 Storage
PCMark 10
PCMark 10
PCMark 8
Work Score Accelerated v2
Average Intel Core i7-8650U, Intel UHD Graphics 620
  (3926 - 5200, n=7)
4822 Points ∼100% +23%
Dell Latitude 5590
UHD Graphics 620, 8250U, SK hynix SC311 M.2
4670 Points ∼97% +19%
Lenovo ThinkPad T580-20LAS01H00
GeForce MX150, 8550U, Samsung SSD PM981 MZVLB512HAJQ
4063 Points ∼84% +3%
Average of class Office
  (1226 - 5428, n=303)
3953 Points ∼82% +1%
Fujitsu LifeBook U758
UHD Graphics 620, 8650U, Toshiba KXG5AZNV1T02
3926 Points ∼81%
Home Score Accelerated v2
Average Intel Core i7-8650U, Intel UHD Graphics 620
  (3216 - 4103, n=9)
3768 Points ∼100% +17%
Dell Latitude 5590
UHD Graphics 620, 8250U, SK hynix SC311 M.2
3757 Points ∼100% +17%
HP EliteBook 850 G5 3JX58EA
UHD Graphics 620, 8250U, Toshiba XG5 KXG50ZNV256G
3669 Points ∼97% +14%
Schenker Slim 15 L17
UHD Graphics 620, 8550U, Samsung SSD 960 Pro 512 GB m.2
3327 Points ∼88% +3%
Fujitsu LifeBook U757
HD Graphics 620, 7200U, Samsung CM871a MZNTY256HDHP
3320 Points ∼88% +3%
Fujitsu LifeBook U758
UHD Graphics 620, 8650U, Toshiba KXG5AZNV1T02
3216 Points ∼85%
Lenovo ThinkPad T580-20LAS01H00
GeForce MX150, 8550U, Samsung SSD PM981 MZVLB512HAJQ
3145 Points ∼83% -2%
Average of class Office
  (1169 - 4458, n=355)
3009 Points ∼80% -6%
PCMark 10
Productivity
Schenker Slim 15 L17
UHD Graphics 620, 8550U, Samsung SSD 960 Pro 512 GB m.2
6614 Points ∼100% +25%
Average Intel Core i7-8650U, Intel UHD Graphics 620
  (5271 - 7142, n=9)
6433 Points ∼97% +22%
Dell Latitude 5590
UHD Graphics 620, 8250U, SK hynix SC311 M.2
5940 Points ∼90% +13%
HP EliteBook 850 G5 3JX58EA
UHD Graphics 620, 8250U, Toshiba XG5 KXG50ZNV256G
5795 Points ∼88% +10%
Average of class Office
  (1444 - 7142, n=97)
5372 Points ∼81% +2%
Fujitsu LifeBook U758
UHD Graphics 620, 8650U, Toshiba KXG5AZNV1T02
5271 Points ∼80%
Lenovo ThinkPad T580-20LAS01H00
GeForce MX150, 8550U, Samsung SSD PM981 MZVLB512HAJQ
5079 Points ∼77% -4%
Score
Average Intel Core i7-8650U, Intel UHD Graphics 620
  (2403 - 4066, n=9)
3642 Points ∼100% +52%
HP EliteBook 850 G5 3JX58EA
UHD Graphics 620, 8250U, Toshiba XG5 KXG50ZNV256G
3517 Points ∼97% +46%
Lenovo ThinkPad T580-20LAS01H00
GeForce MX150, 8550U, Samsung SSD PM981 MZVLB512HAJQ
3425 Points ∼94% +43%
Average of class Office
  (803 - 4269, n=98)
3134 Points ∼86% +30%
Schenker Slim 15 L17
UHD Graphics 620, 8550U, Samsung SSD 960 Pro 512 GB m.2
2629 Points ∼72% +9%
Dell Latitude 5590
UHD Graphics 620, 8250U, SK hynix SC311 M.2
2469 Points ∼68% +3%
Fujitsu LifeBook U758
UHD Graphics 620, 8650U, Toshiba KXG5AZNV1T02
2403 Points ∼66%
PCMark 8 Home Score Accelerated v2
3216 points
PCMark 8 Creative Score Accelerated v2
4572 points
PCMark 8 Work Score Accelerated v2
3926 points
Help

Storage Devices

1.024-GB SSD from Toshiba
1.024-GB SSD from Toshiba

The storage device that Fujitsu has chosen for our test unit is a model from Toshiba. The 1-TB large SSD occupies the only M.2 2280 slot and transfers data as fast as the wind thanks to its NVMe protocol. We were very impressed by the data transfer rates that we measured and the 4K read speed of 26 MB/s is great. 

The LifeBook U758 is also available with M.2 SSDs that "only" run at SATA speeds. These offer additional protection as they support Opal. It is worth looking at the fine print before purchasing your device.

Like its little brother (LifeBook U748) the Fujitsu LifeBook U758 can only be equipped with one storage device. According to the technical specifications, the device supports storage devices of up to 1 TB.

AS SSD
AS SSD
CrystalDiskMark 3
CrystalDiskMark 3
CrystalDiskMark 5
CrystalDiskMark 5
CrystalDiskInfo
CrystalDiskInfo
Fujitsu LifeBook U758
Toshiba KXG5AZNV1T02
Lenovo ThinkPad T580-20LAS01H00
Samsung SSD PM981 MZVLB512HAJQ
HP EliteBook 850 G5 3JX58EA
Toshiba XG5 KXG50ZNV256G
Dell Latitude 5590
SK hynix SC311 M.2
Fujitsu LifeBook U757
Samsung CM871a MZNTY256HDHP
Schenker Slim 15 L17
Samsung SSD 960 Pro 512 GB m.2
CrystalDiskMark 3.0
1%
-17%
-41%
-30%
51%
Write 4k QD32
508.3
264.9
-48%
338.5
-33%
267
-47%
256.7
-49%
510.6
0%
Read 4k QD32
330.6
336.2
2%
282
-15%
276.4
-16%
402.8
22%
605
83%
Write 4k
126.7
135.3
7%
99.15
-22%
74.49
-41%
88.37
-30%
157.7
24%
Read 4k
28.18
63.93
127%
31.76
13%
29.11
3%
36.43
29%
53.99
92%
Write 512
555.6
564.8
2%
284.9
-49%
322.8
-42%
321.7
-42%
1157
108%
Read 512
889.5
555.3
-38%
913.9
3%
352.9
-60%
414.3
-53%
818.9
-8%
Write Seq
936.9
924
-1%
393.4
-58%
436.4
-53%
488.4
-48%
1776
90%
Read Seq
1651
943.5
-43%
2069
25%
498.8
-70%
509.3
-69%
1958
19%
Toshiba KXG5AZNV1T02
Sequential Read: 1651 MB/s
Sequential Write: 936.9 MB/s
512K Read: 889.5 MB/s
512K Write: 555.6 MB/s
4K Read: 28.18 MB/s
4K Write: 126.7 MB/s
4K QD32 Read: 330.6 MB/s
4K QD32 Write: 508.3 MB/s

Graphics

The Fujitsu LifeBook U758 does not have a dedicated graphics card. Therefore, the Intel UHD Graphics 620 is responsible for image output. Compared to the Intel HD Graphics 620, this integrated GPU offers an improvement in performance of up to 20%. The LifeBook U758 keeps up with its competition quite well in this respect, although the ThinkPad T580 still has a significant advantage with the GeForce MX150.

You can find further benchmarks of the Intel UHD Graphics 620 here.

3DMark
1920x1080 Fire Strike Graphics
Lenovo ThinkPad T580-20LAS01H00
NVIDIA GeForce MX150, Intel Core i7-8550U
3291 Points ∼100% +173%
Schenker Slim 15 L17
Intel UHD Graphics 620, Intel Core i7-8550U
1214 Points ∼37% +1%
Fujitsu LifeBook U758
Intel UHD Graphics 620, Intel Core i7-8650U
1206 Points ∼37%
Average Intel UHD Graphics 620
  (557 - 2495, n=85)
1099 Points ∼33% -9%
HP EliteBook 850 G5 3JX58EA
Intel UHD Graphics 620, Intel Core i5-8250U
1002 Points ∼30% -17%
Dell Latitude 5590
Intel UHD Graphics 620, Intel Core i5-8250U
954 Points ∼29% -21%
Average of class Office
  (138 - 4109, n=430)
941 Points ∼29% -22%
1280x720 Cloud Gate Standard Graphics
Lenovo ThinkPad T580-20LAS01H00
NVIDIA GeForce MX150, Intel Core i7-8550U
18916 Points ∼100% +110%
Schenker Slim 15 L17
Intel UHD Graphics 620, Intel Core i7-8550U
9744 Points ∼52% +8%
Fujitsu LifeBook U758
Intel UHD Graphics 620, Intel Core i7-8650U
9015 Points ∼48%
Average Intel UHD Graphics 620
  (6910 - 14880, n=95)
8906 Points ∼47% -1%
Dell Latitude 5590
Intel UHD Graphics 620, Intel Core i5-8250U
8065 Points ∼43% -11%
HP EliteBook 850 G5 3JX58EA
Intel UHD Graphics 620, Intel Core i5-8250U
8065 Points ∼43% -11%
Average of class Office
  (1208 - 27117, n=474)
6562 Points ∼35% -27%
3DMark 11 - 1280x720 Performance GPU
Lenovo ThinkPad T580-20LAS01H00
NVIDIA GeForce MX150, Intel Core i7-8550U
4392 Points ∼100% +166%
Schenker Slim 15 L17
Intel UHD Graphics 620, Intel Core i7-8550U
1740 Points ∼40% +6%
Average Intel UHD Graphics 620
  (1235 - 3203, n=106)
1692 Points ∼39% +3%
HP EliteBook 850 G5 3JX58EA
Intel UHD Graphics 620, Intel Core i5-8250U
1682 Points ∼38% +2%
Fujitsu LifeBook U758
Intel UHD Graphics 620, Intel Core i7-8650U
1649 Points ∼38%
Dell Latitude 5590
Intel UHD Graphics 620, Intel Core i5-8250U
1619 Points ∼37% -2%
Fujitsu LifeBook U757
Intel HD Graphics 620, Intel Core i5-7200U
1309 Points ∼30% -21%
Average of class Office
  (185 - 4967, n=603)
1222 Points ∼28% -26%
3DMark Ice Storm
3DMark Ice Storm
3DMark Ice Storm Unlimited
3DMark Ice Storm Unlimited
3DMark Ice Storm Extreme
3DMark Ice Storm Extreme
3DMark Cloud Gate
3DMark Cloud Gate
3DMark Sky Diver
3DMark Sky Diver
3DMark Fire Strike
3DMark Fire Strike
3DMark Fire Strike Extreme
3DMark Fire Strike Extreme
3DMark Fire Strike Ultra
3DMark Fire Strike Ultra
3DMark Time Spy
3DMark Time Spy
3DMark 11
3DMark 11
3DMark 11 Performance
1861 points
3DMark Ice Storm Standard Score
60249 points
3DMark Cloud Gate Standard Score
7825 points
3DMark Fire Strike Score
1093 points
3DMark Fire Strike Extreme Score
519 points
3DMark Time Spy Score
393 points
Help

Gaming Performance

The missing dedicated graphics card becomes very noticeable in our gaming benchmarks. The performance of the Intel UHD Graphics 620 is not good enough to display demanding games smoothly. As this is clearly a business device, this should not be too much of an issue. If you are looking for a device that you can use for gaming, this is not the one for you.

low med. high ultra
BioShock Infinite (2013) 6633.929.510.1fps
Rocket League (2017) 68.532.321fps
FIFA 18 (2017) 62.333.428.926.4fps

Emissions

System Noise

While idling, the LifeBook U758 works mainly silently. We measured a maximum of only 29.3 dB(A) while idling - this is only slightly above the ambient noise (29.3 dB(A)). The LifeBook U758 remains comfortably quiet, even under load and reaches a maximum of 33.1 dB(A). This makes our test unit the quietest device of the comparison. The models from Lenovo, Dell and Schenker are all significantly louder under load.

Noise Level

Idle
29.3 / 29.3 / 29.6 dB(A)
Load
31.4 / 33.1 dB(A)
  red to green bar
 
 
30 dB
silent
40 dB(A)
audible
50 dB(A)
loud
 
min: dark, med: mid, max: light   Audix TM1, Arta (15 cm distance)   environment noise: 29.3 dB(A)
Fujitsu LifeBook U758
UHD Graphics 620, 8650U, Toshiba KXG5AZNV1T02
Lenovo ThinkPad T580-20LAS01H00
GeForce MX150, 8550U, Samsung SSD PM981 MZVLB512HAJQ
HP EliteBook 850 G5 3JX58EA
UHD Graphics 620, 8250U, Toshiba XG5 KXG50ZNV256G
Dell Latitude 5590
UHD Graphics 620, 8250U, SK hynix SC311 M.2
Fujitsu LifeBook U757
HD Graphics 620, 7200U, Samsung CM871a MZNTY256HDHP
Schenker Slim 15 L17
UHD Graphics 620, 8550U, Samsung SSD 960 Pro 512 GB m.2
Noise
-6%
-4%
-7%
1%
-6%
off / environment *
29.3
29.3
-0%
30
-2%
29
1%
28.2
4%
29.1
1%
Idle Minimum *
29.3
29.3
-0%
30
-2%
29
1%
28.2
4%
29.1
1%
Idle Average *
29.3
29.3
-0%
30
-2%
29
1%
28.2
4%
29.1
1%
Idle Maximum *
29.6
31.8
-7%
32.2
-9%
31.3
-6%
28.2
5%
30.5
-3%
Load Average *
31.4
35.8
-14%
33.2
-6%
36.6
-17%
33.3
-6%
31.2
1%
Load Maximum *
33.1
38
-15%
34.2
-3%
40.9
-24%
34
-3%
45.9
-39%
Witcher 3 ultra *
35.8

* ... smaller is better

dB(A) 0102030405060708090Deep BassMiddle BassHigh BassLower RangeMidsHigher MidsLower HighsMid HighsUpper HighsSuper Highs2030.130.130.73232.528.52528.629.930.327.227.429.33129.230.731.330.531.331.94027.9283029.230.329.35028.728.429.727.329.128.36325.725.724.824.424.725.28025.923.624.423.525.326.210026.22725.728.225.224.612523.524.125.423.523.824.316023.523.225.823.223.323.720022.922.223.521.322.52325021.923.322.821.521.221.831522.321.520.519.82021.740020.72019.119.319.420.950021.820.819.419.218.722.663021.220.618.617.617.421.980019.818.6171916.820.5100021.519.517.216.916.621.9125023.521.816.616.716.623.2160021.319.116.316.416.222.4200019.918.315.916.31621250020.61916.516.316.321.3315021.31917.116.816.821.9400019.518.316.917.216.920.3500018.217.817.317.21719630017.917.817.717.417.218.2800017.918.918.917.617.6181000017.718.81917.717.717.71250017.619.119.117.717.617.6160001820.320.417.717.817.5SPL32.631.429.829.629.333.1N1.81.61.31.31.21.8median 21.2median 19.5median 18.9median 17.7median 17.6median 21.7Delta1.51.41.91.92.21.6hearing rangehide median Fan NoiseFujitsu LifeBook U758

Temperature

3DMark 11 after stress test
3DMark 11 after stress test

The case temperature reaches a maximum of 43.5 °C (~110.3 °F), which is fine, although the previous model was marginally cooler at 42 °C (~107.6 °F). The components inside paint a different picture: The Intel Core i7-8650U heats up to a maximum of 88 °C (~190.4 °F) during the load test with Prime95. The Power Limit turns on before the CPU needs to be throttled due to high temperatures. This already became evident during the CPU benchmarks, as the manufacturer does not allow a power consumption of more than 25 watts. The eighth generation CPUs can usually manage a maximum of 44 watts, albeit only for a few seconds. Nonetheless, the i7-8650U fails to remain stable at its base clock rate of 1.9 GHz. We measured an average CPU clock rate of 1.8 GHz. When CPU and iGPU work together, the CPU speed drops even lower as both chips have to share a TDP of 15 watts.

The continuous load of the stress test does not have a big impact on 3D performance, which is confirmed by the results of the 3DMark 11 that we ran again after the stress test (result: 1807 points).

stress test: Prime95 solo
stress test: Prime95 solo
stress test: FurMark solo
stress test: FurMark solo
stress test: FurMark+Prime95
stress test: FurMark+Prime95
Max. Load
 42.1 °C
108 F
43.5 °C
110 F
28.4 °C
83 F
 
 40.3 °C
105 F
41.6 °C
107 F
27.1 °C
81 F
 
 25.3 °C
78 F
25.4 °C
78 F
26 °C
79 F
 
Maximum: 43.5 °C = 110 F
Average: 33.3 °C = 92 F
28.8 °C
84 F
40.4 °C
105 F
42.3 °C
108 F
25.4 °C
78 F
36.5 °C
98 F
35.3 °C
96 F
24.9 °C
77 F
25.3 °C
78 F
25.5 °C
78 F
Maximum: 42.3 °C = 108 F
Average: 31.6 °C = 89 F
Power Supply (max.)  40.1 °C = 104 F | Room Temperature 21.2 °C = 70 F | Voltcraft IR-900
(±) The average temperature for the upper side under maximal load is 33.3 °C / 92 F, compared to the average of 29.4 °C / 85 F for the devices in the class Office.
(±) The maximum temperature on the upper side is 43.5 °C / 110 F, compared to the average of 33.9 °C / 93 F, ranging from 21.2 to 62.5 °C for the class Office.
(±) The bottom heats up to a maximum of 42.3 °C / 108 F, compared to the average of 36.4 °C / 98 F
(+) In idle usage, the average temperature for the upper side is 23.8 °C / 75 F, compared to the device average of 29.4 °C / 85 F.
(+) The palmrests and touchpad are cooler than skin temperature with a maximum of 26 °C / 78.8 F and are therefore cool to the touch.
(+) The average temperature of the palmrest area of similar devices was 28.3 °C / 82.9 F (+2.3 °C / 4.1 F).
Fujitsu LifeBook U758
UHD Graphics 620, 8650U, Toshiba KXG5AZNV1T02
Lenovo ThinkPad T580-20LAS01H00
GeForce MX150, 8550U, Samsung SSD PM981 MZVLB512HAJQ
HP EliteBook 850 G5 3JX58EA
UHD Graphics 620, 8250U, Toshiba XG5 KXG50ZNV256G
Dell Latitude 5590
UHD Graphics 620, 8250U, SK hynix SC311 M.2
Fujitsu LifeBook U757
HD Graphics 620, 7200U, Samsung CM871a MZNTY256HDHP
Schenker Slim 15 L17
UHD Graphics 620, 8550U, Samsung SSD 960 Pro 512 GB m.2
Heat
-4%
6%
5%
-2%
-0%
Maximum Upper Side *
43.5
41.7
4%
37.6
14%
36.6
16%
42
3%
38.5
11%
Maximum Bottom *
42.3
54.6
-29%
37.8
11%
47.5
-12%
38.8
8%
41.8
1%
Idle Upper Side *
25.4
23.6
7%
25.3
-0%
23.2
9%
29.2
-15%
26.4
-4%
Idle Bottom *
25.7
25
3%
25.8
-0%
24.2
6%
26.3
-2%
27.9
-9%

* ... smaller is better

heat development top (load)
heat development top (load)
heat development bottom (load)
heat development bottom (load)

Speakers

The two speakers are placed above the keyboard and offer a decent performance for an office device. At 74.6 dB(A), they reach a similar volume as the recently tested LifeBook U748 - in both cases the bass frequencies are lacking. The two membranes tend to distort high tones at maximum volume, but the speakers are good enough for video calls and spoken words are rendered clearly.

dB(A) 0102030405060708090Deep BassMiddle BassHigh BassLower RangeMidsHigher MidsLower HighsMid HighsUpper HighsSuper Highs2032.531.42527.428.83131.330.34030.327.95029.128.66324.726.58025.32610025.224.712523.824.616023.330.620022.541.825021.248.33152050.140019.449.850018.753.463017.46080016.861.1100016.664.6125016.666.2160016.265.320001664250016.362.2315016.862400016.960.650001758.7630017.260.6800017.662.51000017.763.51250017.654.81600017.848.7SPL29.374.6N1.233.6median 17.6median 60Delta2.2833.332.131.631.735.735.633.73431.228.928.226.925.524.827.825.424.225.525.638.123.953.424.262.620.862.718.862.518.764.917.865.817.272.316.971.616.271.215.870.915.768.515.966.716.264.516.463.416.865.61764.717.364.317.554.317.554.617.554.429.379.91.347median 17.5median 64.32.25.9hearing rangehide median Pink NoiseFujitsu LifeBook U758Lenovo ThinkPad T580-20LAS01H00
Frequency diagram (checkboxes can be checked and unchecked to compare devices)
Fujitsu LifeBook U758 audio analysis

(±) | speaker loudness is average but good (74.6 dB)
Bass 100 - 315 Hz
(-) | nearly no bass - on average 23.3% lower than median
(±) | linearity of bass is average (10.5% delta to prev. frequency)
Mids 400 - 2000 Hz
(+) | balanced mids - only 4.8% away from median
(+) | mids are linear (5.6% delta to prev. frequency)
Highs 2 - 16 kHz
(+) | balanced highs - only 1.8% away from median
(+) | highs are linear (3.4% delta to prev. frequency)
Overall 100 - 16.000 Hz
(±) | linearity of overall sound is average (21.3% difference to median)
Compared to same class
» 55% of all tested devices in this class were better, 13% similar, 32% worse
» The best had a delta of 8%, average was 21%, worst was 51%
Compared to all devices tested
» 49% of all tested devices were better, 8% similar, 42% worse
» The best had a delta of 3%, average was 21%, worst was 53%

Lenovo ThinkPad T580-20LAS01H00 audio analysis

(±) | speaker loudness is average but good (79.9 dB)
Bass 100 - 315 Hz
(-) | nearly no bass - on average 19.7% lower than median
(±) | linearity of bass is average (13.5% delta to prev. frequency)
Mids 400 - 2000 Hz
(+) | balanced mids - only 4.6% away from median
(+) | mids are linear (3.7% delta to prev. frequency)
Highs 2 - 16 kHz
(+) | balanced highs - only 2.2% away from median
(+) | highs are linear (5.6% delta to prev. frequency)
Overall 100 - 16.000 Hz
(±) | linearity of overall sound is average (17.6% difference to median)
Compared to same class
» 25% of all tested devices in this class were better, 10% similar, 65% worse
» The best had a delta of 8%, average was 21%, worst was 51%
Compared to all devices tested
» 29% of all tested devices were better, 6% similar, 65% worse
» The best had a delta of 3%, average was 21%, worst was 53%

Energy Management

Power Consumption

65-watt power supply
65-watt power supply

The LifeBook U758 is not particularly energy-efficient and treats itself to 5.6 - 12.5 watts while idling, which is significantly more than its competition from HP and Dell. But the devices from Lenovo and Schenker do not do a much better job either. The reason for the high consumption while idling is the UHD panel. We measured a surprisingly low average of 34.2 watts under load and the consumption under maximum load is limited to 47.9 watts. This is another clue that suggests that the manufacturer has made changes to the configurable TDP and limited it to 25 watts. The slim power supply is the same as that of the smaller 14-inch device (LifeBook U748) and supplies a maximum of 65 watts.

Power Consumption
Off / Standbydarklight 0.16 / 1.1 Watt
Idledarkmidlight 5.6 / 11.5 / 12.5 Watt
Load midlight 34.2 / 47.9 Watt
 color bar
Key: min: dark, med: mid, max: light        Metrahit Energy
Fujitsu LifeBook U758
8650U, UHD Graphics 620, Toshiba KXG5AZNV1T02, IPS, 3840x2160, 15.6
Lenovo ThinkPad T580-20LAS01H00
8550U, GeForce MX150, Samsung SSD PM981 MZVLB512HAJQ, IPS LED, 3840x2160, 15.6
HP EliteBook 850 G5 3JX58EA
8250U, UHD Graphics 620, Toshiba XG5 KXG50ZNV256G, IPS LED, 1920x1080, 15.6
Dell Latitude 5590
8250U, UHD Graphics 620, SK hynix SC311 M.2, IPS, 1920x1080, 15.6
Fujitsu LifeBook U757
7200U, HD Graphics 620, Samsung CM871a MZNTY256HDHP, IPS LED, 1920x1080, 15.6
Schenker Slim 15 L17
8550U, UHD Graphics 620, Samsung SSD 960 Pro 512 GB m.2, IPS, 1920x1080, 15.6
Power Consumption
-20%
22%
8%
28%
-6%
Idle Minimum *
5.6
5.3
5%
2.7
52%
3.6
36%
3.96
29%
7.2
-29%
Idle Average *
11.5
10.2
11%
8.1
30%
6.5
43%
7.74
33%
10.9
5%
Idle Maximum *
12.5
13.6
-9%
10.1
19%
7.2
42%
8.64
31%
12.6
-1%
Load Average *
34.2
58.3
-70%
39
-14%
46.2
-35%
28.8
16%
37
-8%
Load Maximum *
47.9
65.3
-36%
37.2
22%
68.8
-44%
32
33%
45.5
5%
Witcher 3 ultra *
47.8

* ... smaller is better

Battery Runtime

3DMark 11 on battery
3DMark 11 on battery
50-Wh battery
50-Wh battery

The battery runtimes suffer significantly from the relatively high power consumption while idling. Even without load the lights go out after 9:44 hours. Under maximum load, one full charge of the 50-Wh battery is only enough to power the device for 91 minutes. We measured a runtime of 4:37 hours during our realistic Wi-Fi test. The LifeBook U758 cannot score any additional points here - a business companion should have a minimum battery runtime of 8 hours. The only comfort is the short charging time of two hours.

As with its smaller brother, our device throttles its 3D performance heavily while running on battery. The result of the 3DMark 11 on battery is 920 points - that is significantly worse than on power supply.

Battery Runtime
Idle (without WLAN, min brightness)
9h 44min
NBC WiFi Websurfing Battery Test 1.3 (Edge 41.16299.248.0)
4h 37min
Big Buck Bunny H.264 1080p
5h 52min
Load (maximum brightness)
1h 31min
maximum battery runtime
maximum battery runtime
minimum battery runtime
minimum battery runtime
Wi-Fi battery runtime
Wi-Fi battery runtime
H.264 battery runtime
H.264 battery runtime
charging time
charging time
Fujitsu LifeBook U758
8650U, UHD Graphics 620, 50 Wh
Lenovo ThinkPad T580-20LAS01H00
8550U, GeForce MX150, 105 Wh
HP EliteBook 850 G5 3JX58EA
8250U, UHD Graphics 620, 56 Wh
Dell Latitude 5590
8250U, UHD Graphics 620, 51 Wh
Fujitsu LifeBook U757
7200U, HD Graphics 620, 50 Wh
Schenker Slim 15 L17
8550U, UHD Graphics 620, 44 Wh
Battery Runtime
81%
97%
36%
59%
-15%
Reader / Idle
584
1181
102%
1066
83%
1044
79%
442
-24%
H.264
352
565
61%
627
78%
401
14%
255
-28%
WiFi v1.3
277
522
88%
556
101%
444
60%
440
59%
275
-1%
Load
91
158
74%
207
127%
82
-10%
86
-5%

Verdict

Pros

+ good 4K display without PWM
+ stable, well-made case with maintenance hatches and exchangeable battery
+ Palm Secure sensor
+ smart card reader
+ LET modem
+ 1-TB SSD with NVMe
+ 32 GB of DDR4
+ comfortable keyboard
+ battery easy to remove
+ case remains relatively cool and is usually quiet
+ full-fledged SD car reader
+ many configuration options

Cons

- comparably low CPU performance
- low battery runtimes
- bad touchpad
- bad webcam
- no TouchStick
- shorter warranty than competition ((24 months)
- large case is not made good use of
The Fujitsu LifeBook U758, test unit provided by Fujitsu Germany
The Fujitsu LifeBook U758, test unit provided by Fujitsu Germany

We have now tested both updates of the LifeBook U series from Fujitsu. The LifeBook U748 did a little better than today's test unit, the U758. Its technical specifications look very promising and make the U758 appear to be a very powerful notebook. But what is the use of a strong processor if it cannot reach its full potential? A cheaper model of the Core series might have been a better choice.

The LifeBook U758 did impress us with its good case, which is very user friendly with its maintenance hatches and easy-to-remove battery. We also like the 4K display that offers good image quality and decent color space coverage. Unfortunately, the display could do with more brightness in order to be usable outdoors.

The Fujitsu LifeBook U758 is a good business device that offers many security features and sufficient memory and storage for CPU-intensive applications. VMware and Hyper-V fans will be very happy with the LifeBook U758 in this configuration.

Despite our repeated criticism of the CPU performance, the system performance is good, although some of the comparison devices offer better performance. Fujitsu should also take another look at the touchpad, which was rather disappointing. Devices from Lenovo, Dell and HP also offer a TouchStick as an alternative to the touchpad. The LifeBook does not have this feature.

There are a lot of small things that could have been improved for it to be less like the U748. Due to its size, it would definitely be a good idea to offer an option with a dedicated GPU. As it is, the only real difference between our test unit and the slightly smaller U748 is its size. If you really want the hardware of the U758, you can also get it in the smaller U748.

Fujitsu LifeBook U758 - 05/02/2018 v6
Sebastian Bade

Chassis
83 / 98 → 84%
Keyboard
87%
Pointing Device
79%
Connectivity
67 / 80 → 84%
Weight
67 / 20-67 → 99%
Battery
82%
Display
91%
Games Performance
59 / 68 → 87%
Application Performance
84 / 92 → 91%
Temperature
92%
Noise
97%
Audio
44%
Camera
44 / 85 → 51%
Average
75%
87%
Office - Weighted Average

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> Notebook / Laptop Reviews and News > Reviews > Fujitsu LifeBook U758 (i7-8650U, UHD) Laptop Review
Sebastian Bade, 2018-05- 9 (Update: 2018-05-12)