Notebookcheck

Asus Zenbook UX305FA Subnotebook Review

Sascha Mölck (translated by Martina Osztovits), 07/31/2015

Silent. With the Zenbook UX305FA, Asus offers a slim, light, silent 13.3-inch subnotebook with very good battery life. A price of just under 800 Euros (~$875) also makes it affordable.

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For the original German review, see here.

With the Zenbook UX305FA, Asus has a very slim 13.3-inch subnotebook in its portfolio. The incorporated Core M processor makes passive cooling of the notebook possible. As a result, the computer is silent. We have already tested the UX305FA-FB003H model of the Zenbook. While the latter features a QHD+ display (3200x1800 pixels), our test model uses a Full HD display.

The Zenbook is available for about 800 Euros (~$875). Aside from other Asus models in the Zenbook UX303LN series, competition comes from the likes of the Toshiba Portégé Z30-A and the Dell XPS 13.

Since the two Zenbook UX305FA models we reviewed use the same construction, we will not cover case, connectivity, input devices and speakers here. For information about these, please refer to the Zenbook UX305FA-FB003H review.

Asus Zenbook UX305FA-FC004H (Zenbook Series)
Processor
Graphics adapter
Intel HD Graphics 5300, Core: 100-800 MHz, dual channel, 10.18.10.3960
Memory
8192 MB 
, DDR3, dual channel, soldered, no RAM slots
Display
13.3 inch 16:9, 1920x1080 pixel, AU Optronics B133HAN02.1, IPS, glossy: no
Mainboard
Intel Broadwell-Y PCH-LP (Premium)
Storage
SanDisk SD7SN3Q128G1002, 128 GB 
, 80 GB free
Soundcard
Conexant CX20751/2 @ Intel Broadwell PCH-LP High Definition Audio Controller
Connections
3 USB 3.0 / 3.1 Gen1, 1 HDMI, Audio Connections: audio combo, Card Reader: SD, Sensors: Brightness sensor
Networking
Intel Dual Band Wireless-AC 7265 (a/b/g/h/n/ac), Bluetooth 4.0
Size
height x width x depth (in mm): 13 x 326 x 223 ( = 0.51 x 12.83 x 8.78 in)
Battery
45 Wh Lithium-Ion
Operating System
Microsoft Windows 8.1 64 Bit
Camera
Webcam: HD webcam
Additional features
Speakers: Stereo, Keyboard: Chiclet, Keyboard Light: yes, USB-to-Ethernet adapter, bag, McAfee LiveSafe-Internet Security (trial version), MS Office (trial version), 24 Months Warranty
Weight
1.27 kg ( = 44.8 oz / 2.8 pounds), Power Supply: 178 g ( = 6.28 oz / 0.39 pounds)
Price
799 Euro

 

Display

The Zenbook features a matte 13.3-inch display with a native resolution of 1920x1080 pixels. Brightness, contrast and black value are very good and cannot be criticized.

354
cd/m²
342
cd/m²
344
cd/m²
339
cd/m²
351
cd/m²
328
cd/m²
334
cd/m²
341
cd/m²
335
cd/m²
Distribution of brightness
X-Rite i1Pro 2
Maximum: 354 cd/m² Average: 340.9 cd/m²
Brightness Distribution: 93 %
Center on Battery: 351 cd/m²
Contrast: 1064:1 (Black: 0.33 cd/m²)
ΔE Color 6.5 | - Ø
ΔE Greyscale 7.19 | - Ø
91.8% sRGB (Argyll) 59.6% AdobeRGB 1998 (Argyll)
Gamma: 2.07

Asus delivers the computer with a preinstalled color profile, which ensures an average DeltaE 2000 shift of 6.5. A value smaller than 3 would be desired. The display is slightly bluish if at all.

CalMAN - Color Checker
CalMAN - Color Checker
CalMAN - Gray level
CalMAN - Gray level
CalMAN - Color saturation
CalMAN - Color saturation

The Zenbook is equipped with a viewing-angle-stable IPS display. Thus, you can read from the display from every position. The Zenbook can be used outdoors.

The Zenbook outdoors
The Zenbook outdoors
Asus Zenbook UX305FA-FC004H
IPS 1920x1080
Apple MacBook Pro Retina 13 inch 2015-03
IPS 2560x1600
Toshiba Kirabook 2014
IPS 2560x1440
Dell XPS 13-9343
IPS 3200x1800
Asus ZenBook UX305FA-FB003H
IPS 3200x1800
Asus Zenbook UX303LA-R4342H
IPS 1920x1080
Screen
16%
23%
23%
-10%
-18%
Brightness
341
342
0%
223
-35%
372
9%
309
-9%
359
5%
Brightness Distribution
93
81
-13%
85
-9%
77
-17%
90
-3%
92
-1%
Black Level *
0.33
0.361
-9%
0.166
50%
0.178
46%
0.75
-127%
0.7
-112%
Contrast
1064
1000
-6%
1367
28%
2063
94%
413
-61%
527
-50%
Colorchecker DeltaE2000 *
6.5
1.82
72%
2.5
62%
5.92
9%
2.49
62%
5.21
20%
Greyscale DeltaE2000 *
7.19
1.8
75%
2.55
65%
4.79
33%
1.89
74%
6.7
7%
Gamma
2.07 116%
2.49 96%
2.44 98%
2.42 99%
2.36 102%
2.28 105%
CCT
6692 97%
6417 101%
6697 97%
7013 93%
6573 99%
7495 87%
Color Space (Percent of AdobeRGB 1998)
59.6
61.9
4%
61
2%
63
6%
54
-9%
60.5
2%
Color Space (Percent of sRGB)
91.8
96.9
6%
96.4
5%
83.1
-9%

* ... smaller is better

Performance

The Asus Zenbook UX305FA-FC004H is a subnotebook with a display size of 13.3 inches. It brings enough processing performance for office and Internet applications and long battery runtimes. Our test model is priced at about 800 Euros (~$875). Asus also offers other configurations.

Processor

The Zenbook comes with a Core M-5Y10 (Broadwell) dual-core processor, which is very frugal. Intel specifies a TDP of only 4.5 W. Thus, passive cooling of the CPU is possible and is used in the Zenbook. The low TDP is caused by the low base clock of 800 MHz. However, the CPU clock can increase to up to 2 GHz thanks to the Turbo technology, which is also used. During the multithread tests of the Cinebench benchmarks the CPU continuously clocks between 1.4 to 1.5 GHz. The single thread tests run at 2 GHz (main operation) or 1.8 to 2 GHz (on battery), respectively. The processor supports Hyperthreading (each core can run two threads simultaneously).

Cinebench R10 Rendering Multiple CPUs 32Bit
5217
Cinebench R10 Shading 32Bit
3810
Cinebench R10 Rendering Single 32Bit
3105
Cinebench R11.5 CPU Multi 64Bit
1.64 Points
Cinebench R11.5 CPU Single 64Bit
0.95 Points
Cinebench R11.5 OpenGL 64Bit
14.85 fps
Cinebench R15 Ref. Match 64Bit
98 %
Cinebench R15 OpenGL 64Bit
17.48 fps
Cinebench R15 CPU Multi 64Bit
150 Points
Cinebench R15 CPU Single 64Bit
81 Points
Help
Cinebench R15
CPU Single 64Bit (sort by value)
Asus Zenbook UX305FA-FC004H
HD Graphics 5300, 5Y10, SanDisk SD7SN3Q128G1002
81 Points ∼36%
Apple MacBook Pro Retina 13 inch 2015-03
Iris Graphics 6100, 5257U, Apple SSD SM0128G
126 Points ∼57% +56%
Toshiba Portege Z30-B-10Q
HD Graphics 5500, 5500U, Samsung SSD PM851 256 GB MZ7TE256HMHP
123 Points ∼55% +52%
Toshiba Kirabook 2014
HD Graphics 4400, 4500U, Toshiba THNSNJ256GMCT
108 Points ∼48% +33%
Dell XPS 13-9343
HD Graphics 5500, 5200U, Lite-On IT L8T-256L9G
88 Points ∼39% +9%
Asus ZenBook UX305FA-FB003H
HD Graphics 5300, 5Y10, SanDisk SD7SN3Q256G1002
82 Points ∼37% +1%
Asus Zenbook UX303LA-R4342H
HD Graphics 5500, 5500U, SanDisk X300s SD7SB3Q256G
103 Points ∼46% +27%
CPU Multi 64Bit (sort by value)
Asus Zenbook UX305FA-FC004H
HD Graphics 5300, 5Y10, SanDisk SD7SN3Q128G1002
150 Points ∼8%
Apple MacBook Pro Retina 13 inch 2015-03
Iris Graphics 6100, 5257U, Apple SSD SM0128G
321 Points ∼17% +114%
Toshiba Portege Z30-B-10Q
HD Graphics 5500, 5500U, Samsung SSD PM851 256 GB MZ7TE256HMHP
291 Points ∼16% +94%
Toshiba Kirabook 2014
HD Graphics 4400, 4500U, Toshiba THNSNJ256GMCT
268 Points ∼14% +79%
Dell XPS 13-9343
HD Graphics 5500, 5200U, Lite-On IT L8T-256L9G
217 Points ∼12% +45%
Asus ZenBook UX305FA-FB003H
HD Graphics 5300, 5Y10, SanDisk SD7SN3Q256G1002
155 Points ∼8% +3%
Asus Zenbook UX303LA-R4342H
HD Graphics 5500, 5500U, SanDisk X300s SD7SB3Q256G
302 Points ∼16% +101%
Cinebench R11.5
CPU Single 64Bit (sort by value)
Asus Zenbook UX305FA-FC004H
HD Graphics 5300, 5Y10, SanDisk SD7SN3Q128G1002
0.95 Points ∼43%
Apple MacBook Pro Retina 13 inch 2015-03
Iris Graphics 6100, 5257U, Apple SSD SM0128G (Windows 8.1)
1.49 Points ∼68% +57%
Apple MacBook Pro Retina 13 inch 2015-03
Iris Graphics 6100, 5257U, Apple SSD SM0128G (OS X)
1.37 Points ∼62% +44%
Toshiba Portege Z30-B-10Q
HD Graphics 5500, 5500U, Samsung SSD PM851 256 GB MZ7TE256HMHP
1.26 Points ∼57% +33%
Toshiba Kirabook 2014
HD Graphics 4400, 4500U, Toshiba THNSNJ256GMCT
1.33 Points ∼60% +40%
Dell XPS 13-9343
HD Graphics 5500, 5200U, Lite-On IT L8T-256L9G
0.98 Points ∼45% +3%
Asus ZenBook UX305FA-FB003H
HD Graphics 5300, 5Y10, SanDisk SD7SN3Q256G1002
0.95 Points ∼43% 0%
Asus Zenbook UX303LA-R4342H
HD Graphics 5500, 5500U, SanDisk X300s SD7SB3Q256G
1.4 Points ∼64% +47%
CPU Multi 64Bit (sort by value)
Asus Zenbook UX305FA-FC004H
HD Graphics 5300, 5Y10, SanDisk SD7SN3Q128G1002
1.64 Points ∼8%
Apple MacBook Pro Retina 13 inch 2015-03
Iris Graphics 6100, 5257U, Apple SSD SM0128G (Windows 8.1)
3.53 Points ∼18% +115%
Apple MacBook Pro Retina 13 inch 2015-03
Iris Graphics 6100, 5257U, Apple SSD SM0128G (OS X)
3.34 Points ∼17% +104%
Toshiba Portege Z30-B-10Q
HD Graphics 5500, 5500U, Samsung SSD PM851 256 GB MZ7TE256HMHP
2.95 Points ∼15% +80%
Toshiba Kirabook 2014
HD Graphics 4400, 4500U, Toshiba THNSNJ256GMCT
2.91 Points ∼15% +77%
Dell XPS 13-9343
HD Graphics 5500, 5200U, Lite-On IT L8T-256L9G
2.33 Points ∼12% +42%
Asus ZenBook UX305FA-FB003H
HD Graphics 5300, 5Y10, SanDisk SD7SN3Q256G1002
1.74 Points ∼9% +6%
Asus Zenbook UX303LA-R4342H
HD Graphics 5500, 5500U, SanDisk X300s SD7SB3Q256G
3.26 Points ∼16% +99%
Cinebench R10
Rendering Single 32Bit (sort by value)
Asus Zenbook UX305FA-FC004H
HD Graphics 5300, 5Y10, SanDisk SD7SN3Q128G1002
3105 Points ∼35%
Apple MacBook Pro Retina 13 inch 2015-03
Iris Graphics 6100, 5257U, Apple SSD SM0128G
4890 Points ∼55% +57%
Toshiba Portege Z30-B-10Q
HD Graphics 5500, 5500U, Samsung SSD PM851 256 GB MZ7TE256HMHP
4585 Points ∼52% +48%
Toshiba Kirabook 2014
HD Graphics 4400, 4500U, Toshiba THNSNJ256GMCT
4381 Points ∼49% +41%
Dell XPS 13-9343
HD Graphics 5500, 5200U, Lite-On IT L8T-256L9G
2656 Points ∼30% -14%
Asus ZenBook UX305FA-FB003H
HD Graphics 5300, 5Y10, SanDisk SD7SN3Q256G1002
3100 Points ∼35% 0%
Asus Zenbook UX303LA-R4342H
HD Graphics 5500, 5500U, SanDisk X300s SD7SB3Q256G
4598 Points ∼52% +48%
Rendering Multiple CPUs 32Bit (sort by value)
Asus Zenbook UX305FA-FC004H
HD Graphics 5300, 5Y10, SanDisk SD7SN3Q128G1002
5217 Points ∼13%
Apple MacBook Pro Retina 13 inch 2015-03
Iris Graphics 6100, 5257U, Apple SSD SM0128G
10763 Points ∼27% +106%
Toshiba Portege Z30-B-10Q
HD Graphics 5500, 5500U, Samsung SSD PM851 256 GB MZ7TE256HMHP
9980 Points ∼25% +91%
Toshiba Kirabook 2014
HD Graphics 4400, 4500U, Toshiba THNSNJ256GMCT
8924 Points ∼22% +71%
Dell XPS 13-9343
HD Graphics 5500, 5200U, Lite-On IT L8T-256L9G
7208 Points ∼18% +38%
Asus ZenBook UX305FA-FB003H
HD Graphics 5300, 5Y10, SanDisk SD7SN3Q256G1002
5404 Points ∼13% +4%
Asus Zenbook UX303LA-R4342H
HD Graphics 5500, 5500U, SanDisk X300s SD7SB3Q256G
10040 Points ∼25% +92%
Geekbench 3
32 Bit Multi-Core Score (sort by value)
Asus Zenbook UX305FA-FC004H
HD Graphics 5300, 5Y10, SanDisk SD7SN3Q128G1002
3713 Points ∼12%
Apple MacBook Pro Retina 13 inch 2015-03
Iris Graphics 6100, 5257U, Apple SSD SM0128G
6521 Points ∼21% +76%
Asus Zenbook UX303LA-R4342H
HD Graphics 5500, 5500U, SanDisk X300s SD7SB3Q256G
6017 Points ∼19% +62%
32 Bit Single-Core Score (sort by value)
Asus Zenbook UX305FA-FC004H
HD Graphics 5300, 5Y10, SanDisk SD7SN3Q128G1002
2038 Points ∼44%
Apple MacBook Pro Retina 13 inch 2015-03
Iris Graphics 6100, 5257U, Apple SSD SM0128G
3086 Points ∼66% +51%
Asus Zenbook UX303LA-R4342H
HD Graphics 5500, 5500U, SanDisk X300s SD7SB3Q256G
2898 Points ∼62% +42%
Sunspider - 1.0 Total Score (sort by value)
Asus Zenbook UX305FA-FC004H
HD Graphics 5300, 5Y10, SanDisk SD7SN3Q128G1002 (IE 11)
166.9 ms * ∼4%
Apple MacBook Pro Retina 13 inch 2015-03
Iris Graphics 6100, 5257U, Apple SSD SM0128G (Safari 8.0)
158.1 ms * ∼4% +5%
Dell XPS 13-9343
HD Graphics 5500, 5200U, Lite-On IT L8T-256L9G
115.4 ms * ∼3% +31%
Asus ZenBook UX305FA-FB003H
HD Graphics 5300, 5Y10, SanDisk SD7SN3Q256G1002
157 ms * ∼4% +6%
Asus Zenbook UX303LA-R4342H
HD Graphics 5500, 5500U, SanDisk X300s SD7SB3Q256G (IE 11)
99.6 ms * ∼2% +40%
Mozilla Kraken 1.1 - Total Score (sort by value)
Asus Zenbook UX305FA-FC004H
HD Graphics 5300, 5Y10, SanDisk SD7SN3Q128G1002 (IE 11)
3310.1 ms * ∼6%
Apple MacBook Pro Retina 13 inch 2015-03
Iris Graphics 6100, 5257U, Apple SSD SM0128G (Safari 8.0)
1938 ms * ∼3% +41%
Dell XPS 13-9343
HD Graphics 5500, 5200U, Lite-On IT L8T-256L9G
2604.2 ms * ∼4% +21%
Asus ZenBook UX305FA-FB003H
HD Graphics 5300, 5Y10, SanDisk SD7SN3Q256G1002
3324 ms * ∼6% -0%
Asus Zenbook UX303LA-R4342H
HD Graphics 5500, 5500U, SanDisk X300s SD7SB3Q256G (IE 11)
2308.8 ms * ∼4% +30%
Octane V2 - Total Score (sort by value)
Asus Zenbook UX305FA-FC004H
HD Graphics 5300, 5Y10, SanDisk SD7SN3Q128G1002 (IE 11)
9408 Points ∼19%
Apple MacBook Pro Retina 13 inch 2015-03
Iris Graphics 6100, 5257U, Apple SSD SM0128G (Safari 8.0)
20689 Points ∼42% +120%
Asus ZenBook UX305FA-FB003H
HD Graphics 5300, 5Y10, SanDisk SD7SN3Q256G1002
9344 Points ∼19% -1%
Asus Zenbook UX303LA-R4342H
HD Graphics 5500, 5500U, SanDisk X300s SD7SB3Q256G (IE 11)
13309 Points ∼27% +41%
Peacekeeper - --- (sort by value)
Asus Zenbook UX305FA-FC004H
HD Graphics 5300, 5Y10, SanDisk SD7SN3Q128G1002 (IE 11)
1842 Points ∼30%
Apple MacBook Pro Retina 13 inch 2015-03
Iris Graphics 6100, 5257U, Apple SSD SM0128G (Safari 8.0)
4938 Points ∼80% +168%
Asus Zenbook UX303LA-R4342H
HD Graphics 5500, 5500U, SanDisk X300s SD7SB3Q256G (IE 11)
2729 Points ∼44% +48%

* ... smaller is better

System Performance

Thanks to a fast SSD the system runs swiftly and smoothly. We did not face problems. The results of the PCMark benchmarks are good, too. It is hardly possible to improve the system performance here. Our comparison diagram shows that the Zenbook UX305FA-FB003H sibling with the same CPU performs worse. This is caused by the higher display resolution (3200x1800 pixels) of the latter. With the same resolutions, the results would be on par.

PCMark 8 Home Score Accelerated v2
2319 points
PCMark 8 Creative Score Accelerated v2
2611 points
PCMark 8 Work Score Accelerated v2
3251 points
Help
PCMark 8 - Home Score Accelerated v2 (sort by value)
Asus Zenbook UX305FA-FC004H
HD Graphics 5300, 5Y10, SanDisk SD7SN3Q128G1002
2319 Points ∼39%
Asus ZenBook UX305FA-FB003H
HD Graphics 5300, 5Y10, SanDisk SD7SN3Q256G1002
2037 Points ∼34% -12%
Toshiba Kirabook 2014
HD Graphics 4400, 4500U, Toshiba THNSNJ256GMCT
2389 Points ∼40% +3%
Dell XPS 13-9343
HD Graphics 5500, 5200U, Lite-On IT L8T-256L9G
2582 Points ∼43% +11%
Asus Zenbook UX303LA-R4342H
HD Graphics 5500, 5500U, SanDisk X300s SD7SB3Q256G
3087 Points ∼52% +33%
Apple MacBook Pro Retina 13 inch 2015-03
Iris Graphics 6100, 5257U, Apple SSD SM0128G
3363 Points ∼56% +45%

Storage Devices

A Solid State Disk from SanDisk is used as the mass storage device. It is a model with M.2 format and a total capacity of 128 GB, from which about 80 GB are available to the user. While the SSD has good reading performance, its write performance falls significantly behind the possibilities of today's SSDs.

SanDisk SD7SN3Q128G1002
Sequential Read: 470.8 MB/s
Sequential Write: 272.3 MB/s
512K Read: 287.9 MB/s
512K Write: 252.6 MB/s
4K Read: 31.24 MB/s
4K Write: 74.17 MB/s
4K QD32 Read: 293 MB/s
4K QD32 Write: 226 MB/s

Graphics Card

Graphics output is done by Intel's HD Graphics 5300 graphics core. It supports DirectX 11.2 and is driven by clock rates between 100 and 800 MHz. The results of the 3DMark benchmarks are significantly lower than the graphics core's possibilities. The GPU cannot use its maximum clock under load. When FurMark is running, the graphics unit's clock rate ranges between 300 to 400 MHz. The processor is throttled to 500 MHz after a few minutes. The GPU can use the RAM, which works in dual-channel mode. Otherwise, the 3DMark results would be even worse.

3DMark 11 Performance
663 points
3DMark Ice Storm Standard Score
30389 points
3DMark Cloud Gate Standard Score
3018 points
3DMark Fire Strike Score
390 points
Help
3DMark 11 - 1280x720 Performance (sort by value)
Asus Zenbook UX305FA-FC004H
HD Graphics 5300, 5Y10, SanDisk SD7SN3Q128G1002
663 Points ∼2%
Apple MacBook Pro Retina 13 inch 2015-03
Iris Graphics 6100, 5257U, Apple SSD SM0128G
1828 Points ∼6% +176%
Toshiba Portege Z30-B-10Q
HD Graphics 5500, 5500U, Samsung SSD PM851 256 GB MZ7TE256HMHP
1059 Points ∼4% +60%
Toshiba Kirabook 2014
HD Graphics 4400, 4500U, Toshiba THNSNJ256GMCT
993 Points ∼3% +50%
Dell XPS 13-9343
HD Graphics 5500, 5200U, Lite-On IT L8T-256L9G
1109 Points ∼4% +67%
Asus ZenBook UX305FA-FB003H
HD Graphics 5300, 5Y10, SanDisk SD7SN3Q256G1002
686 Points ∼2% +3%
Asus Zenbook UX303LA-R4342H
HD Graphics 5500, 5500U, SanDisk X300s SD7SB3Q256G
1159 Points ∼4% +75%
3DMark
1920x1080 Fire Strike Score (sort by value)
Asus Zenbook UX305FA-FC004H
HD Graphics 5300, 5Y10, SanDisk SD7SN3Q128G1002
390 Points ∼2%
Apple MacBook Pro Retina 13 inch 2015-03
Iris Graphics 6100, 5257U, Apple SSD SM0128G
981 Points ∼4% +152%
Toshiba Portege Z30-B-10Q
HD Graphics 5500, 5500U, Samsung SSD PM851 256 GB MZ7TE256HMHP
618 Points ∼3% +58%
Toshiba Kirabook 2014
HD Graphics 4400, 4500U, Toshiba THNSNJ256GMCT
640 Points ∼3% +64%
Dell XPS 13-9343
HD Graphics 5500, 5200U, Lite-On IT L8T-256L9G
746 Points ∼3% +91%
Asus ZenBook UX305FA-FB003H
HD Graphics 5300, 5Y10, SanDisk SD7SN3Q256G1002
407 Points ∼2% +4%
Asus Zenbook UX303LA-R4342H
HD Graphics 5500, 5500U, SanDisk X300s SD7SB3Q256G
725 Points ∼3% +86%
1280x720 Sky Diver Score (sort by value)
Asus Zenbook UX305FA-FC004H
HD Graphics 5300, 5Y10, SanDisk SD7SN3Q128G1002
1451 Points ∼3%
Asus Zenbook UX303LA-R4342H
HD Graphics 5500, 5500U, SanDisk X300s SD7SB3Q256G
2735 Points ∼5% +88%
1280x720 Cloud Gate Standard Score (sort by value)
Asus Zenbook UX305FA-FC004H
HD Graphics 5300, 5Y10, SanDisk SD7SN3Q128G1002
3018 Points ∼6%
Apple MacBook Pro Retina 13 inch 2015-03
Iris Graphics 6100, 5257U, Apple SSD SM0128G
6190 Points ∼13% +105%
Toshiba Portege Z30-B-10Q
HD Graphics 5500, 5500U, Samsung SSD PM851 256 GB MZ7TE256HMHP
4693 Points ∼9% +56%
Toshiba Kirabook 2014
HD Graphics 4400, 4500U, Toshiba THNSNJ256GMCT
4477 Points ∼9% +48%
Dell XPS 13-9343
HD Graphics 5500, 5200U, Lite-On IT L8T-256L9G
5025 Points ∼10% +67%
Asus ZenBook UX305FA-FB003H
HD Graphics 5300, 5Y10, SanDisk SD7SN3Q256G1002
2958 Points ∼6% -2%
Asus Zenbook UX303LA-R4342H
HD Graphics 5500, 5500U, SanDisk X300s SD7SB3Q256G
5342 Points ∼11% +77%
1280x720 Ice Storm Standard Score (sort by value)
Asus Zenbook UX305FA-FC004H
HD Graphics 5300, 5Y10, SanDisk SD7SN3Q128G1002
30389 Points ∼15%
Apple MacBook Pro Retina 13 inch 2015-03
Iris Graphics 6100, 5257U, Apple SSD SM0128G
53847 Points ∼27% +77%
Toshiba Portege Z30-B-10Q
HD Graphics 5500, 5500U, Samsung SSD PM851 256 GB MZ7TE256HMHP
37669 Points ∼19% +24%
Toshiba Kirabook 2014
HD Graphics 4400, 4500U, Toshiba THNSNJ256GMCT
30257 Points ∼15% 0%
Dell XPS 13-9343
HD Graphics 5500, 5200U, Lite-On IT L8T-256L9G
46293 Points ∼23% +52%
Asus ZenBook UX305FA-FB003H
HD Graphics 5300, 5Y10, SanDisk SD7SN3Q256G1002
27325 Points ∼14% -10%
Asus Zenbook UX303LA-R4342H
HD Graphics 5500, 5500U, SanDisk X300s SD7SB3Q256G
52880 Points ∼27% +74%

Gaming Performance

The Zenbook is not suitable for running computer games. A few games can be played with low resolution and low quality settings, but it is not possible to run the latest hits like Battlefield Hardline. Those who want to play games should restrict themselves to titles available in the Windows Store, which usually run without problems. Asus also offers a gaming capable alternative to the UX305FA: The representatives of the Zenbook UX303LN series feature a GeForce 840M graphics card. They are also slim 13.3-inch computers, but you have to accept that they are not silent.

low med. high ultra
Tomb Raider (2013) 31.315.710.65.4fps
Far Cry 4 (2014) 9.26.83.51.7fps
Dragon Age: Inquisition (2014) 11.98.231.6fps
Evolve (2015) 75.12.81.1fps
Battlefield Hardline (2015) 15.31153.1fps

Emissions & Energy Management

Temperature

The Zenbook during the stress test.
The Zenbook during the stress test.

Whether on battery or mains, the Zenbook behaves the same way in our stress test (Prime95 and FurMark run for at least one hour): The processor clocks at 500 MHz and the graphics core runs at 250 to 350 MHz. Since the notebook does not feature active cooling, the CPU and GPU have to throttle to avoid overheating. The computer does not get extremely warm although, during the stress test, 40 degrees Celsius (104 Fahrenheit) is exceeded in some spots close by the heat sink.

 24.2 °C24.2 °C24.1 °C 
 23.2 °C23.2 °C23.5 °C 
 23.1 °C23 °C23.5 °C 
Maximum: 24.2 °C
Average: 23.6 °C
24.6 °C24.5 °C24 °C
23.8 °C23.5 °C23.6 °C
24.1 °C23.5 °C23.3 °C
Maximum: 24.6 °C
Average: 23.9 °C
Power Supply (max.)  27.5 °C | Room Temperature 21.3 °C | Voltcraft IR-360

Power Consumption

Thank to its Core M processor, the Zenbook is very frugal when idle. We measured a power consumption of 6.5 W. It is not surprising, that the power consumption only increases to 15.5 W during the stress test since the CPU and GPU are heavily throttled. The Zenbook UX305FA-FB003H with the same CPU reached double the power consumption under full load. However, this is only true for the first seconds of the stress tests. Afterwards, the sibling also throttles and the power consumption falls.

Power Consumption
Off / Standbydarklight 0 / 0.01 Watt
Idledarkmidlight 2.6 / 6.4 / 6.5 Watt
Load midlight 15.1 / 15.5 Watt
 color bar
Key: min: dark, med: mid, max: light        Voltcraft VC 940

Battery Life

Our realistic Wi-Fi test automatically opens web sites in 40-second intervals. The profile "balanced" is active and the display brightness is set to about 150 cd/m². The Zenbook achieved a battery life of 8:34 h and exceeds its sibling (6:48 h) by just under two hours. This is not surprising since the latter has a higher power consumption due to a display with higher resolution.

Battery Runtime
WiFi Surfing v1.3 (IE 11)
8h 34min
Battery Runtime
WiFi v1.3 (sort by value)
Asus Zenbook UX305FA-FC004H
HD Graphics 5300, 5Y10, SanDisk SD7SN3Q128G1002
514 min ∼19%
Apple MacBook Pro Retina 13 inch 2015-03
Iris Graphics 6100, 5257U, Apple SSD SM0128G
539 min ∼20%
Asus Zenbook UX303LA-R4342H
HD Graphics 5500, 5500U, SanDisk X300s SD7SB3Q256G
507 min ∼19%
WiFi (sort by value)
Toshiba Portege Z30-B-10Q
HD Graphics 5500, 5500U, Samsung SSD PM851 256 GB MZ7TE256HMHP
355 min ∼13%
Toshiba Kirabook 2014
HD Graphics 4400, 4500U, Toshiba THNSNJ256GMCT
393 min ∼15%
Dell XPS 13-9343
HD Graphics 5500, 5200U, Lite-On IT L8T-256L9G
580 min ∼21%
Asus ZenBook UX305FA-FB003H
HD Graphics 5300, 5Y10, SanDisk SD7SN3Q256G1002
408 min ∼15%

Pros

+ Bright, contrast-rich IPS screen
+ Stable, high-end case
+ Very good input devices
+ Silent operation
+ Hardly gets warmer
+ Fast SSD
+ Maintainable
+ USB-to-Ethernet adapter

Cons

- No keyboard light

Verdict

In Review: Asus Zenbook UX305FA-FC004H. Test model courtesy of Notebooksbilliger.de
In Review: Asus Zenbook UX305FA-FC004H. Test model courtesy of Notebooksbilliger.de

In the verdict to the Zenbook sibling we wrote, "...the UX305 seems to us to be a well-balanced subnotebook that has much to offer for professional users and demanding private users alike." This is also true for the Zenbook UX305FA-FC004H. The buyer gets a silent, light, very slim subnotebook with very good input devices. The processing performance of the Core M processor is sufficient for office and Internet applications. In addition, there is a bright, contrast-rich IPS display. The two UX305FA models reviewed by us differ most in terms of display. The Full HD display of our test model needs less energy than the QHD+ display of the sibling and is able to translate this advantage into significantly longer battery runtimes.

Thus, the Full HD model of the Zenbook would be the better choice for users who are looking for the longest battery runtimes possible.

Asus Zenbook UX305FA-FC004H - 11/24/2015 v4(old)
Sascha Mölck

Chassis
92 /  98 → 94%
Keyboard
88%
Pointing Device
93%
Connectivity
60 / 80 → 75%
Weight
72 / 78 → 86%
Battery
91%
Display
88%
Games Performance
58 / 68 → 85%
Application Performance
66 / 87 → 76%
Temperature
90 / 91 → 99%
Noise
100%
Audio
56 / 91 → 62%
Camera
40 / 85 → 47%
Average
76%
87%
Subnotebook - Weighted Average

Pricecompare

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> Notebook / Laptop Reviews and News > Reviews > Archive of our own reviews > Asus Zenbook UX305FA Subnotebook Review
Sascha Mölck, 2015-07-31 (Update: 2015-07-31)