Notebookcheck

Asus Zenbook UX303LN Subnotebook Review

Sascha Mölck (translated by Vinay Pradhan), 03/14/2015

Sleek. The Zenbook is one of the few subnotebooks with a dedicated graphics card: powerful graphics performance in a compact form. In addition, the Zenbook has low noise and temperature emissions and good battery life.

For the original German review, see here.

Slim, stylish and powerful - those three words capture the essence of the Asus Zenbook UX303LN. We previously tested the Haswell configuration of this model and now we have the Broadwell version of the successful subnotebook on our test bench.

We use the Dell XPS 13, the Apple MacBook Pro Retina 13 and the Toshiba Portégé Z30-A-12U for comparison purposes in our in-depth review.

As both Zenbook UX303LN configurations have the same build, we will skip some topics which we covered in the previous review. For more information about the case, the connectivity, the input devices, the display and the speakers, we refer you to the review of the Zenbook UX303LN-R4141H (Broadwell).

Display

The two Zenbook-UX303LN models we tested have the same panel. However, this does not mean that they offer identical values, which is normal. Two identical panels are never exactly the same.

359
cd/m²
372
cd/m²
364
cd/m²
368
cd/m²
376
cd/m²
363
cd/m²
400
cd/m²
352
cd/m²
358
cd/m²
Distribution of brightness
X-Rite i1Pro 2
Maximum: 400 cd/m² Average: 368 cd/m²
Brightness Distribution: 88 %
Center on Battery: 376 cd/m²
Contrast: 537:1 (Black: 0.7 cd/m²)
ΔE Color 3.09 | - Ø
ΔE Greyscale 2.4 | - Ø
Gamma: 2.24
Asus Zenbook UX303LN-R4274H
IPS 1920x1080
Asus Zenbook UX303LN-R4141H
IPS 1920x1080
Dell XPS 13 9343 Core i7
IPS 3200x1800
Dell XPS 13-9343
IPS 3200x1800
Acer Aspire R7-371T-52EL
IPS 1920x1080
Asus ZenBook UX305FA-FB003H
IPS 3200x1800
Apple MacBook Pro Retina 13 inch 2013-10
IPS 2560x1440
Toshiba Portege Z30-A-12U
TN 1366x768
Samsung ATIV Book 9 2014 (NP930X5J-K02DE)
IPS 1920x1080
Response Times
Response Time Grey 50% / Grey 80% *
33
Response Time Black / White *
26.2
PWM Frequency
Screen
-23%
12%
26%
10%
-1%
16%
-97%
11%
Brightness
368
339
-8%
231
-37%
372
1%
322
-12%
309
-16%
300
-18%
265
-28%
261
-29%
Brightness Distribution
88
88
0%
82
-7%
77
-12%
83
-6%
90
2%
84
-5%
82
-7%
91
3%
Black Level *
0.7
0.55
21%
0.25
64%
0.178
75%
0.32
54%
0.75
-7%
0.42
40%
0.8
-14%
0.34
51%
Contrast
537
625
16%
928
73%
2063
284%
1003
87%
413
-23%
779
45%
338
-37%
809
51%
Colorchecker DeltaE2000 *
3.09
5.45
-76%
3.63
-17%
5.92
-92%
4.79
-55%
2.49
19%
8.96
-190%
2.87
7%
Greyscale DeltaE2000 *
2.4
4.53
-89%
2.57
-7%
4.79
-100%
2.67
-11%
1.89
21%
9.76
-307%
2.88
-20%
Gamma
2.24 107%
2.27 106%
2.17 111%
2.42 99%
2.52 95%
2.36 102%
2.17 111%
2.34 103%
CCT
6781 96%
7458 87%
6422 101%
7013 93%
6835 95%
6573 99%
11579 56%
6830 95%
Color Space (Percent of AdobeRGB 1998)
64
58
63
54
39.8
63
Color Space (Percent of sRGB)
97.4
96.4
83.1
Total Average (Program / Settings)
-23% / -23%
12% / 12%
26% / 26%
10% / 10%
-1% / -1%
16% / 16%
-97% / -97%
11% / 11%

* ... smaller is better

CalMAN - ColorChecker
CalMAN - ColorChecker
CalMAN - Gray levels
CalMAN - Gray levels
CalMAN - Saturation
CalMAN - Saturation

Performance

The Asus Zenbook UX303LN is a powerful 13.3-inch subnotebook with good battery life. Asus offers various configurations and our test model is available for 1,200 Euros (~$1265). If you give up on the dedicated graphics card, you can buy one of the cheaper, yet identical models from the Zenbook UX303LA series. The price range for this series starts at 700 Euros (~$738).

Processor

The Zenbook runs on the Intel Core i7-5500U dual-core processor (Broadwell). The CPU runs at a base clock speed of 2.4 GHz. Turbo allows the processor to boost its speed up to 2.9 GHz (two cores) and 3 GHz (single core). Turbo is available while the laptop is plugged in or on battery: the processor completes the CPU tests of the Cinebench benchmark at max speed. In comparison to the Core i7-4510U in the Haswell model, the Core i7-5500U CPU offers 15% more performance.

Cinebench R10 Shading 32Bit
6064
Cinebench R10 Rendering Multiple CPUs 32Bit
9964
Cinebench R10 Rendering Single 32Bit
4615
Cinebench R11.5 OpenGL 64Bit
48.73 fps
Cinebench R11.5 CPU Multi 64Bit
3.16 Points
Cinebench R11.5 CPU Single 64Bit
1.42 Points
Cinebench R15 Ref. Match 64Bit
99.6 %
Cinebench R15 OpenGL 64Bit
60.63 fps
Cinebench R15 CPU Multi 64Bit
303 Points
Cinebench R15 CPU Single 64Bit
121 Points
Help
Cinebench R15
CPU Single 64Bit (sort by value)
Asus Zenbook UX303LN-R4274H
GeForce 840M, 5500U, SanDisk X300s SD7SB3Q256G
121 Points ∼65%
Asus Zenbook UX303LN-R4141H
GeForce 840M, 4510U, SanDisk SD6SB1M256G1002
119 Points ∼64% -2%
Dell XPS 13 9343 Core i7
HD Graphics 5500, 5500U, Samsung SSD PM851 M.2 2280 256GB
123 Points ∼66% +2%
Dell XPS 13-9343
HD Graphics 5500, 5200U, Lite-On IT L8T-256L9G
88 Points ∼48% -27%
Acer Aspire R7-371T-52EL
HD Graphics 5500, 5200U, Kingston RBU-SNS8100S3256GD
109 Points ∼59% -10%
Asus ZenBook UX305FA-FB003H
HD Graphics 5300, 5Y10, SanDisk SD7SN3Q256G1002
82 Points ∼44% -32%
Apple MacBook Pro Retina 13 inch 2013-10
Iris Graphics 5100, 4258U, Apple SSD SM0256F
106 Points ∼57% -12%
Toshiba Portege Z30-A-12U
HD Graphics 4400, 4500U, Toshiba HG5d THNSNH256GMCT
116 Points ∼63% -4%
Samsung ATIV Book 9 2014 (NP930X5J-K02DE)
HD Graphics 4400, 4200U, Samsung MZNTE128HMGR-000SO
95 Points ∼51% -21%
CPU Multi 64Bit (sort by value)
Asus Zenbook UX303LN-R4274H
GeForce 840M, 5500U, SanDisk X300s SD7SB3Q256G
303 Points ∼20%
Asus Zenbook UX303LN-R4141H
GeForce 840M, 4510U, SanDisk SD6SB1M256G1002
249 Points ∼16% -18%
Dell XPS 13 9343 Core i7
HD Graphics 5500, 5500U, Samsung SSD PM851 M.2 2280 256GB
287 Points ∼19% -5%
Dell XPS 13-9343
HD Graphics 5500, 5200U, Lite-On IT L8T-256L9G
217 Points ∼14% -28%
Acer Aspire R7-371T-52EL
HD Graphics 5500, 5200U, Kingston RBU-SNS8100S3256GD
255 Points ∼16% -16%
Asus ZenBook UX305FA-FB003H
HD Graphics 5300, 5Y10, SanDisk SD7SN3Q256G1002
155 Points ∼10% -49%
Apple MacBook Pro Retina 13 inch 2013-10
Iris Graphics 5100, 4258U, Apple SSD SM0256F
261 Points ∼17% -14%
Toshiba Portege Z30-A-12U
HD Graphics 4400, 4500U, Toshiba HG5d THNSNH256GMCT
265 Points ∼17% -13%
Samsung ATIV Book 9 2014 (NP930X5J-K02DE)
HD Graphics 4400, 4200U, Samsung MZNTE128HMGR-000SO
230 Points ∼15% -24%
Cinebench R11.5
CPU Single 64Bit (sort by value)
Asus Zenbook UX303LN-R4274H
GeForce 840M, 5500U, SanDisk X300s SD7SB3Q256G
1.42 Points ∼5%
Asus Zenbook UX303LN-R4141H
GeForce 840M, 4510U, SanDisk SD6SB1M256G1002
1.37 Points ∼5% -4%
Dell XPS 13 9343 Core i7
HD Graphics 5500, 5500U, Samsung SSD PM851 M.2 2280 256GB
1.41 Points ∼5% -1%
Dell XPS 13-9343
HD Graphics 5500, 5200U, Lite-On IT L8T-256L9G
0.98 Points ∼4% -31%
Acer Aspire R7-371T-52EL
HD Graphics 5500, 5200U, Kingston RBU-SNS8100S3256GD
1.27 Points ∼5% -11%
Asus ZenBook UX305FA-FB003H
HD Graphics 5300, 5Y10, SanDisk SD7SN3Q256G1002
0.95 Points ∼4% -33%
Apple MacBook Pro Retina 13 inch 2013-10
Iris Graphics 5100, 4258U, Apple SSD SM0256F
1.21 Points ∼4% -15%
Toshiba Portege Z30-A-12U
HD Graphics 4400, 4500U, Toshiba HG5d THNSNH256GMCT
1.31 Points ∼5% -8%
Samsung ATIV Book 9 2014 (NP930X5J-K02DE)
HD Graphics 4400, 4200U, Samsung MZNTE128HMGR-000SO
0.92 Points ∼3% -35%
CPU Multi 64Bit (sort by value)
Asus Zenbook UX303LN-R4274H
GeForce 840M, 5500U, SanDisk X300s SD7SB3Q256G
3.16 Points ∼4%
Asus Zenbook UX303LN-R4141H
GeForce 840M, 4510U, SanDisk SD6SB1M256G1002
3 Points ∼4% -5%
Dell XPS 13 9343 Core i7
HD Graphics 5500, 5500U, Samsung SSD PM851 M.2 2280 256GB
3.12 Points ∼4% -1%
Dell XPS 13-9343
HD Graphics 5500, 5200U, Lite-On IT L8T-256L9G
2.33 Points ∼3% -26%
Acer Aspire R7-371T-52EL
HD Graphics 5500, 5200U, Kingston RBU-SNS8100S3256GD
2.79 Points ∼4% -12%
Asus ZenBook UX305FA-FB003H
HD Graphics 5300, 5Y10, SanDisk SD7SN3Q256G1002
1.74 Points ∼2% -45%
Apple MacBook Pro Retina 13 inch 2013-10
Iris Graphics 5100, 4258U, Apple SSD SM0256F
2.92 Points ∼4% -8%
Toshiba Portege Z30-A-12U
HD Graphics 4400, 4500U, Toshiba HG5d THNSNH256GMCT
2.88 Points ∼4% -9%
Samsung ATIV Book 9 2014 (NP930X5J-K02DE)
HD Graphics 4400, 4200U, Samsung MZNTE128HMGR-000SO
2.49 Points ∼3% -21%
Cinebench R10
Rendering Single 32Bit (sort by value)
Asus Zenbook UX303LN-R4274H
GeForce 840M, 5500U, SanDisk X300s SD7SB3Q256G
4615 Points ∼66%
Asus Zenbook UX303LN-R4141H
GeForce 840M, 4510U, SanDisk SD6SB1M256G1002
4447 Points ∼63% -4%
Dell XPS 13 9343 Core i7
HD Graphics 5500, 5500U, Samsung SSD PM851 M.2 2280 256GB
4631 Points ∼66% 0%
Dell XPS 13-9343
HD Graphics 5500, 5200U, Lite-On IT L8T-256L9G
2656 Points ∼38% -42%
Acer Aspire R7-371T-52EL
HD Graphics 5500, 5200U, Kingston RBU-SNS8100S3256GD
4175 Points ∼59% -10%
Asus ZenBook UX305FA-FB003H
HD Graphics 5300, 5Y10, SanDisk SD7SN3Q256G1002
3100 Points ∼44% -33%
Apple MacBook Pro Retina 13 inch 2013-10
Iris Graphics 5100, 4258U, Apple SSD SM0256F
4831 Points ∼69% +5%
Toshiba Portege Z30-A-12U
HD Graphics 4400, 4500U, Toshiba HG5d THNSNH256GMCT
4268 Points ∼61% -8%
Rendering Multiple CPUs 32Bit (sort by value)
Asus Zenbook UX303LN-R4274H
GeForce 840M, 5500U, SanDisk X300s SD7SB3Q256G
9964 Points ∼29%
Asus Zenbook UX303LN-R4141H
GeForce 840M, 4510U, SanDisk SD6SB1M256G1002
8931 Points ∼26% -10%
Dell XPS 13 9343 Core i7
HD Graphics 5500, 5500U, Samsung SSD PM851 M.2 2280 256GB
9825 Points ∼28% -1%
Dell XPS 13-9343
HD Graphics 5500, 5200U, Lite-On IT L8T-256L9G
7208 Points ∼21% -28%
Acer Aspire R7-371T-52EL
HD Graphics 5500, 5200U, Kingston RBU-SNS8100S3256GD
8673 Points ∼25% -13%
Asus ZenBook UX305FA-FB003H
HD Graphics 5300, 5Y10, SanDisk SD7SN3Q256G1002
5404 Points ∼16% -46%
Apple MacBook Pro Retina 13 inch 2013-10
Iris Graphics 5100, 4258U, Apple SSD SM0256F
10604 Points ∼30% +6%
Toshiba Portege Z30-A-12U
HD Graphics 4400, 4500U, Toshiba HG5d THNSNH256GMCT
8918 Points ∼26% -10%
Geekbench 3
32 Bit Multi-Core Score (sort by value)
Asus Zenbook UX303LN-R4274H
GeForce 840M, 5500U, SanDisk X300s SD7SB3Q256G
5991 Points ∼37%
Dell XPS 13 9343 Core i7
HD Graphics 5500, 5500U, Samsung SSD PM851 M.2 2280 256GB
6078 Points ∼37% +1%
Acer Aspire R7-371T-52EL
HD Graphics 5500, 5200U, Kingston RBU-SNS8100S3256GD
5346 Points ∼33% -11%
Apple MacBook Pro Retina 13 inch 2013-10
Iris Graphics 5100, 4258U, Apple SSD SM0256F
5634 Points ∼34% -6%
32 Bit Single-Core Score (sort by value)
Asus Zenbook UX303LN-R4274H
GeForce 840M, 5500U, SanDisk X300s SD7SB3Q256G
2898 Points ∼62%
Dell XPS 13 9343 Core i7
HD Graphics 5500, 5500U, Samsung SSD PM851 M.2 2280 256GB
2925 Points ∼63% +1%
Acer Aspire R7-371T-52EL
HD Graphics 5500, 5200U, Kingston RBU-SNS8100S3256GD
2676 Points ∼57% -8%
Apple MacBook Pro Retina 13 inch 2013-10
Iris Graphics 5100, 4258U, Apple SSD SM0256F
2701 Points ∼58% -7%
Sunspider - 1.0 Total Score (sort by value)
Asus Zenbook UX303LN-R4274H
GeForce 840M, 5500U, SanDisk X300s SD7SB3Q256G (IE 11)
106.7 ms * ∼3%
Asus Zenbook UX303LN-R4141H
GeForce 840M, 4510U, SanDisk SD6SB1M256G1002
102.7 ms * ∼3% +4%
Dell XPS 13 9343 Core i7
HD Graphics 5500, 5500U, Samsung SSD PM851 M.2 2280 256GB (IE 11)
99.1 ms * ∼2% +7%
Dell XPS 13-9343
HD Graphics 5500, 5200U, Lite-On IT L8T-256L9G
115.4 ms * ∼3% -8%
Acer Aspire R7-371T-52EL
HD Graphics 5500, 5200U, Kingston RBU-SNS8100S3256GD (IE 11)
121.4 ms * ∼3% -14%
Asus ZenBook UX305FA-FB003H
HD Graphics 5300, 5Y10, SanDisk SD7SN3Q256G1002
157 ms * ∼4% -47%
Apple MacBook Pro Retina 13 inch 2013-10
Iris Graphics 5100, 4258U, Apple SSD SM0256F (1.0.2 Safari 7.0)
144 ms * ∼4% -35%
Mozilla Kraken 1.1 - Total Score (sort by value)
Asus Zenbook UX303LN-R4274H
GeForce 840M, 5500U, SanDisk X300s SD7SB3Q256G (IE 11)
2289.1 ms * ∼4%
Asus Zenbook UX303LN-R4141H
GeForce 840M, 4510U, SanDisk SD6SB1M256G1002
2327 ms * ∼4% -2%
Dell XPS 13 9343 Core i7
HD Graphics 5500, 5500U, Samsung SSD PM851 M.2 2280 256GB (IE 11)
2313.4 ms * ∼4% -1%
Dell XPS 13-9343
HD Graphics 5500, 5200U, Lite-On IT L8T-256L9G
2604.2 ms * ∼4% -14%
Acer Aspire R7-371T-52EL
HD Graphics 5500, 5200U, Kingston RBU-SNS8100S3256GD (IE 11)
2576.3 ms * ∼4% -13%
Asus ZenBook UX305FA-FB003H
HD Graphics 5300, 5Y10, SanDisk SD7SN3Q256G1002
3324 ms * ∼6% -45%
Apple MacBook Pro Retina 13 inch 2013-10
Iris Graphics 5100, 4258U, Apple SSD SM0256F (Safari 7.0)
2292.2 ms * ∼4% -0%
Octane V2 - Total Score (sort by value)
Asus Zenbook UX303LN-R4274H
GeForce 840M, 5500U, SanDisk X300s SD7SB3Q256G (IE 11)
13913 Points ∼31%
Asus Zenbook UX303LN-R4141H
GeForce 840M, 4510U, SanDisk SD6SB1M256G1002
14609 Points ∼32% +5%
Dell XPS 13 9343 Core i7
HD Graphics 5500, 5500U, Samsung SSD PM851 M.2 2280 256GB (IE 11)
13536 Points ∼30% -3%
Acer Aspire R7-371T-52EL
HD Graphics 5500, 5200U, Kingston RBU-SNS8100S3256GD (IE 11)
12663 Points ∼28% -9%
Asus ZenBook UX305FA-FB003H
HD Graphics 5300, 5Y10, SanDisk SD7SN3Q256G1002
9344 Points ∼21% -33%
Peacekeeper - --- (sort by value)
Asus Zenbook UX303LN-R4274H
GeForce 840M, 5500U, SanDisk X300s SD7SB3Q256G (IE 11)
2735 Points ∼44%
Dell XPS 13 9343 Core i7
HD Graphics 5500, 5500U, Samsung SSD PM851 M.2 2280 256GB (IE 11)
2630 Points ∼42% -4%
Acer Aspire R7-371T-52EL
HD Graphics 5500, 5200U, Kingston RBU-SNS8100S3256GD (IE 11)
2038 Points ∼33% -25%

* ... smaller is better

System Performance

The system runs smoothly and we did not encounter any issues. The PCMark benchmark results are very good. The results of the Haswell configuration are a little lower, as that processor is weaker. Competitors, like the Apple MacBook Pro Retina 13, are far behind the Zenbook as they have weaker processors and GPUs.

PCMark 8 Home Score Accelerated v2
3057 points
PCMark 8 Creative Score Accelerated v2
3751 points
PCMark 8 Work Score Accelerated v2
4154 points
Help
PCMark 8 - Home Score Accelerated v2 (sort by value)
Asus Zenbook UX303LN-R4274H
GeForce 840M, 5500U, SanDisk X300s SD7SB3Q256G
3057 Points ∼54%
Asus ZenBook UX305FA-FB003H
HD Graphics 5300, 5Y10, SanDisk SD7SN3Q256G1002
2037 Points ∼36% -33%
Samsung ATIV Book 9 2014 (NP930X5J-K02DE)
HD Graphics 4400, 4200U, Samsung MZNTE128HMGR-000SO
2389 Points ∼42% -22%
Apple MacBook Pro Retina 13 inch 2013-10
Iris Graphics 5100, 4258U, Apple SSD SM0256F
2457 Points ∼43% -20%
Dell XPS 13-9343
HD Graphics 5500, 5200U, Lite-On IT L8T-256L9G
2582 Points ∼46% -16%
Dell XPS 13 9343 Core i7
HD Graphics 5500, 5500U, Samsung SSD PM851 M.2 2280 256GB
2719 Points ∼48% -11%
Acer Aspire R7-371T-52EL
HD Graphics 5500, 5200U, Kingston RBU-SNS8100S3256GD
2805 Points ∼49% -8%
Asus Zenbook UX303LN-R4141H
GeForce 840M, 4510U, SanDisk SD6SB1M256G1002
2927 Points ∼52% -4%

Storage Device

The Zenbook is equipped with a Solid State Drive from SanDisk. It is a 2.5-inch model with a capacity of 256 GB. The SSD has two partitions: the system partition (95.3 GB) and a data partition (130 GB). The device offers good transfer speeds.

Like its Haswell predecessor, the Broadwell test model in front of us also has a free mSATA slot (half-size) for SSDs. The user can swap out the 2.5-inch SSD for an HDD with more capacity if they install an mSATA SSD. Sadly, it would have to be a half-size mSATA SSD and the pickings are meager. Furthermore, the price per GB is higher for half-size mSATA SSDs than for full-size mSATA SSDs or a normal 2.5-inch SSD.

SanDisk X300s SD7SB3Q256G
Sequential Read: 447.2 MB/s
Sequential Write: 441.1 MB/s
512K Read: 308.1 MB/s
512K Write: 351.4 MB/s
4K Read: 33.33 MB/s
4K Write: 99.88 MB/s
4K QD32 Read: 336.9 MB/s
4K QD32 Write: 303.6 MB/s

Graphics card

The Intel HD Graphics 5500 IGP and the Nvidia GeForce 840M GPU power the Zenbook. The switchable graphics (Optimus) allows the user to dynamically and automatically swap between the graphics processors depending on the scenario. The conservative Intel IGP is useful for everyday use or while running the laptop on battery. The GeForce GPU is useful for demanding programs, like games. The middle-class GeForce GPU supports DirectX 11 and operates at 1,029 MHz. Turbo can boost the speed up to 1,124 MHz. The 3DMark benchmark results are a bit better than those of the Haswell model. We believe this increase is due to the more powerful processor and updated drivers.

3DMark 11 Performance
2499 points
3DMark Ice Storm Standard Score
54160 points
3DMark Cloud Gate Standard Score
6774 points
3DMark Fire Strike Score
1446 points
Help
3DMark 11 - 1280x720 Performance (sort by value)
Asus Zenbook UX303LN-R4274H
GeForce 840M, 5500U, SanDisk X300s SD7SB3Q256G
2499 Points ∼10%
Asus Zenbook UX303LN-R4141H
GeForce 840M, 4510U, SanDisk SD6SB1M256G1002
2378 Points ∼9% -5%
Dell XPS 13 9343 Core i7
HD Graphics 5500, 5500U, Samsung SSD PM851 M.2 2280 256GB
1252 Points ∼5% -50%
Dell XPS 13-9343
HD Graphics 5500, 5200U, Lite-On IT L8T-256L9G
1109 Points ∼4% -56%
Acer Aspire R7-371T-52EL
HD Graphics 5500, 5200U, Kingston RBU-SNS8100S3256GD
1130 Points ∼4% -55%
Asus ZenBook UX305FA-FB003H
HD Graphics 5300, 5Y10, SanDisk SD7SN3Q256G1002
686 Points ∼3% -73%
Toshiba Portege Z30-A-12U
HD Graphics 4400, 4500U, Toshiba HG5d THNSNH256GMCT
1032 Points ∼4% -59%
Samsung ATIV Book 9 2014 (NP930X5J-K02DE)
HD Graphics 4400, 4200U, Samsung MZNTE128HMGR-000SO
918 Points ∼4% -63%
3DMark
1920x1080 Fire Strike Score (sort by value)
Asus Zenbook UX303LN-R4274H
GeForce 840M, 5500U, SanDisk X300s SD7SB3Q256G
1446 Points ∼6%
Asus Zenbook UX303LN-R4141H
GeForce 840M, 4510U, SanDisk SD6SB1M256G1002
1317 Points ∼6% -9%
Dell XPS 13 9343 Core i7
HD Graphics 5500, 5500U, Samsung SSD PM851 M.2 2280 256GB
781 Points ∼3% -46%
Dell XPS 13-9343
HD Graphics 5500, 5200U, Lite-On IT L8T-256L9G
746 Points ∼3% -48%
Acer Aspire R7-371T-52EL
HD Graphics 5500, 5200U, Kingston RBU-SNS8100S3256GD
724 Points ∼3% -50%
Asus ZenBook UX305FA-FB003H
HD Graphics 5300, 5Y10, SanDisk SD7SN3Q256G1002
407 Points ∼2% -72%
Toshiba Portege Z30-A-12U
HD Graphics 4400, 4500U, Toshiba HG5d THNSNH256GMCT
646 Points ∼3% -55%
1280x720 Sky Diver Score (sort by value)
Asus Zenbook UX303LN-R4274H
GeForce 840M, 5500U, SanDisk X300s SD7SB3Q256G
5541 Points ∼14%
Dell XPS 13 9343 Core i7
HD Graphics 5500, 5500U, Samsung SSD PM851 M.2 2280 256GB
2822 Points ∼7% -49%
Acer Aspire R7-371T-52EL
HD Graphics 5500, 5200U, Kingston RBU-SNS8100S3256GD
2665 Points ∼7% -52%
1280x720 Cloud Gate Standard Score (sort by value)
Asus Zenbook UX303LN-R4274H
GeForce 840M, 5500U, SanDisk X300s SD7SB3Q256G
6774 Points ∼19%
Asus Zenbook UX303LN-R4141H
GeForce 840M, 4510U, SanDisk SD6SB1M256G1002
5919 Points ∼17% -13%
Dell XPS 13 9343 Core i7
HD Graphics 5500, 5500U, Samsung SSD PM851 M.2 2280 256GB
5370 Points ∼15% -21%
Dell XPS 13-9343
HD Graphics 5500, 5200U, Lite-On IT L8T-256L9G
5025 Points ∼14% -26%
Acer Aspire R7-371T-52EL
HD Graphics 5500, 5200U, Kingston RBU-SNS8100S3256GD
5059 Points ∼14% -25%
Asus ZenBook UX305FA-FB003H
HD Graphics 5300, 5Y10, SanDisk SD7SN3Q256G1002
2958 Points ∼8% -56%
Toshiba Portege Z30-A-12U
HD Graphics 4400, 4500U, Toshiba HG5d THNSNH256GMCT
4900 Points ∼14% -28%
Samsung ATIV Book 9 2014 (NP930X5J-K02DE)
HD Graphics 4400, 4200U, Samsung MZNTE128HMGR-000SO
4371 Points ∼12% -35%
1280x720 Ice Storm Standard Score (sort by value)
Asus Zenbook UX303LN-R4274H
GeForce 840M, 5500U, SanDisk X300s SD7SB3Q256G
54160 Points ∼27%
Asus Zenbook UX303LN-R4141H
GeForce 840M, 4510U, SanDisk SD6SB1M256G1002
51903 Points ∼26% -4%
Dell XPS 13 9343 Core i7
HD Graphics 5500, 5500U, Samsung SSD PM851 M.2 2280 256GB
50151 Points ∼25% -7%
Dell XPS 13-9343
HD Graphics 5500, 5200U, Lite-On IT L8T-256L9G
46293 Points ∼23% -15%
Acer Aspire R7-371T-52EL
HD Graphics 5500, 5200U, Kingston RBU-SNS8100S3256GD
46421 Points ∼23% -14%
Asus ZenBook UX305FA-FB003H
HD Graphics 5300, 5Y10, SanDisk SD7SN3Q256G1002
27325 Points ∼14% -50%
Toshiba Portege Z30-A-12U
HD Graphics 4400, 4500U, Toshiba HG5d THNSNH256GMCT
40279 Points ∼20% -26%
Samsung ATIV Book 9 2014 (NP930X5J-K02DE)
HD Graphics 4400, 4200U, Samsung MZNTE128HMGR-000SO
40682 Points ∼21% -25%

Gaming Performance

The hardware allows the user to run most games in the HD resolution (1366x768 pixels) with medium or high quality settings. Full HD resolution is only possible for a few games: mostly older games or games with low requirements.

low med. high ultra
Tomb Raider (2013) 131.463.835.817.5fps
Tomb Raider
1366x768 High Preset AA:FX AF:8x (sort by value)
Asus Zenbook UX303LN-R4274H
GeForce 840M, 5500U, SanDisk X300s SD7SB3Q256G
35.8 fps ∼7%
Dell XPS 13 9343 Core i7
HD Graphics 5500, 5500U, Samsung SSD PM851 M.2 2280 256GB
20.4 fps ∼4% -43%
Acer Aspire R7-371T-52EL
HD Graphics 5500, 5200U, Kingston RBU-SNS8100S3256GD
18 fps ∼4% -50%
Toshiba Portege Z30-A-12U
HD Graphics 4400, 4500U, Toshiba HG5d THNSNH256GMCT
15.7 fps ∼3% -56%
Samsung ATIV Book 9 2014 (NP930X5J-K02DE)
HD Graphics 4400, 4200U, Samsung MZNTE128HMGR-000SO
14.1 fps ∼3% -61%
1366x768 Normal Preset AA:FX AF:4x (sort by value)
Asus Zenbook UX303LN-R4274H
GeForce 840M, 5500U, SanDisk X300s SD7SB3Q256G
63.8 fps ∼11%
Dell XPS 13 9343 Core i7
HD Graphics 5500, 5500U, Samsung SSD PM851 M.2 2280 256GB
30.7 fps ∼5% -52%
Acer Aspire R7-371T-52EL
HD Graphics 5500, 5200U, Kingston RBU-SNS8100S3256GD
27.5 fps ∼5% -57%
Toshiba Portege Z30-A-12U
HD Graphics 4400, 4500U, Toshiba HG5d THNSNH256GMCT
25.9 fps ∼5% -59%
Samsung ATIV Book 9 2014 (NP930X5J-K02DE)
HD Graphics 4400, 4200U, Samsung MZNTE128HMGR-000SO
23.5 fps ∼4% -63%

Emissions & Energy Management

System Noise

Unlike the Haswell model, the fan of the Broadwell test model runs permanently while idle, but at low speeds. The fan is only audible in quiet surroundings. During the stress test, the fan speeds up and the emissions reach 39.6 dB - a moderate level. The fan does not need to turn up any further as the CPU is throttled during the stress test. The Haswell model emits a little less noise during the stress test.

Noise Level

Idle
31 / 31 / 31 dB(A)
Load
36.6 / 39.3 dB(A)
 
 
 
30 dB
silent
40 dB(A)
audible
50 dB(A)
loud
 
min: dark, med: mid, max: light   Voltcraft sl-320 (15 cm distance)

Temperature

The stress test on the Zenbook.
The stress test on the Zenbook.

The stress test (Prime95 and Furmark run simultaneously for at least an hour) runs differently on the Zenbook when it is plugged in and when on battery. On battery, the laptop processor runs at 2.5 GHz. Every now and then, one of the cores drops down to 500 MHz. The graphics core runs at 281 MHz and abruptly speeds up to 1,124 MHz. While plugged in, the GPU runs at full speed (1,124 MHz) and the CPU is throttled to 1.6 GHz. Fortunately, the case does not heat up too much during the stress test. The case only hits the 40 °C mark near the fan. Surprisingly, the Haswell model heats up much more. The reason: the CPU of the laptop is not throttled as much.

Max. Load
 32.5 °C47.1 °C34.6 °C 
 29.8 °C45.6 °C33.8 °C 
 29 °C30.3 °C30.4 °C 
Maximum: 47.1 °C
Average: 34.8 °C
39 °C43.4 °C37.1 °C
34 °C38.5 °C33.9 °C
31.3 °C32.5 °C31.3 °C
Maximum: 43.4 °C
Average: 35.7 °C
Power Supply (max.)  49.6 °C | Room Temperature 23.7 °C | Voltcraft IR-360

Power Consumption

While idle, the consumption of the Zenbook is below 10 W - a good result. We noted the same value in the Haswell model. During the stress test, the power consumption rises to 52.1 W, which is to be expected for such powerful hardware. At load, the power consumption of both models is the same.

Power Consumption
Off / Standbydarklight 0 / 0.2 Watt
Idledarkmidlight 2.6 / 6.8 / 7.9 Watt
Load midlight 40.1 / 52.1 Watt
 color bar
Key: min: dark, med: mid, max: light        Voltcraft VC 940

Battery Life

In the practical WLAN test, our script loads different websites every 40 seconds. The "Balanced" power profile is turned on and the brightness is set to around 150 cd/m². The Zenbook offers a runtime of 8:50 h. It does not run as long as the Haswell model (9:40 h), but the test model still offers good battery life.

Battery Runtime
WiFi Surfing v1.3 (IE 11)
8h 50min
Battery Runtime
WiFi (sort by value)
Asus Zenbook UX303LN-R4274H
GeForce 840M, 5500U, SanDisk X300s SD7SB3Q256G
min ∼0%
Asus ZenBook UX305FA-FB003H
HD Graphics 5300, 5Y10, SanDisk SD7SN3Q256G1002
408 min ∼15%
Dell XPS 13 9343 Core i7
HD Graphics 5500, 5500U, Samsung SSD PM851 M.2 2280 256GB
421 min ∼16%
Acer Aspire R7-371T-52EL
HD Graphics 5500, 5200U, Kingston RBU-SNS8100S3256GD
449 min ∼17%
Samsung ATIV Book 9 2014 (NP930X5J-K02DE)
HD Graphics 4400, 4200U, Samsung MZNTE128HMGR-000SO
449 min ∼17%
Toshiba Portege Z30-A-12U
HD Graphics 4400, 4500U, Toshiba HG5d THNSNH256GMCT
457 min ∼17%
Dell XPS 13-9343
HD Graphics 5500, 5200U, Lite-On IT L8T-256L9G
580 min ∼21%
Apple MacBook Pro Retina 13 inch 2013-10
Iris Graphics 5100, 4258U, Apple SSD SM0256F
569 min ∼21%
Asus Zenbook UX303LN-R4141H
GeForce 840M, 4510U, SanDisk SD6SB1M256G1002
580 min ∼21%
WiFi v1.3 (sort by value)
Asus Zenbook UX303LN-R4274H
GeForce 840M, 5500U, SanDisk X300s SD7SB3Q256G
530 min ∼20%

Verdict

The Asus Zenbook UX303LN-R4274H is a compact, mobile 13.3-inch subnotebook. Despite the slim build, the laptop offers high performance and is capable of gaming. The laptop barely heats up and runs quietly. It offers good input devices and long battery life. A Solid State Drive ensures the system runs smoothly. Furthermore, the matte IPS panel is a great feature, which produces a good picture (subjective). The only flaw is the poor contrast. A maintenance flap is not to be found on the laptop, but the device can be maintained: the bottom is removable. Furthermore, the free mSATA slot (half-size) provides upgrade options.

The biggest difference between the Zenbook UX303LN-R4274H and its Haswell sibling model is the processor. The Zenbook offers higher performance without requiring stronger cooling or too much more energy. The battery life is slightly shorter, but it is still quite high

Price Comparison

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In review: Asus Zenbook UX303LN-R4274H
In review: Asus Zenbook UX303LN-R4274H

Specifications

Asus Zenbook UX303LN-R4274H
Processor
Graphics adapter
NVIDIA GeForce 840M - 2048 MB, Core: 1029-1124 MHz, Memory: 1000 MHz, DDR3, ForceWare 347.52 (9.18.13.4752), Optimus
Memory
8192 MB 
, DDR3, Dual-Channel, one slot (occupied), 4 GB soldered
Display
13.3 inch 16:9, 1920x1080 pixel, Chi Mei N133HSE-EA3, IPS, glossy: no
Mainboard
Intel Broadwell-U PCH-LP (Premium)
Storage
SanDisk X300s SD7SB3Q256G, 256 GB 
, 190 GB free
Soundcard
Conexant CX20751/2 @ Intel Broadwell PCH-LP High Definition Audio Controller
Connections
1 USB 2.0, 2 USB 3.0 / 3.1 Gen1, 1 HDMI, 1 DisplayPort, Audio Connections: Audio combo jack, 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): 19 x 323 x 223 ( = 0.75 x 12.72 x 8.78 in)
Battery
50 Wh Lithium-Ion
Operating System
Microsoft Windows 8.1 64 Bit
Camera
Webcam: HD webcam
Additional features
Speakers: Stereo, Keyboard: Chiclet, Keyboard Light: yes, Bag, Mini-Displayport-to-VGA-Adapter, USB-to-Ethernet-Adapter, McAfee LiveSafe-Internet Security (trial), MS Office (trial), 24 Months Warranty
Weight
1.45 kg ( = 51.15 oz / 3.2 pounds), Power Supply: 214 g ( = 7.55 oz / 0.47 pounds)
Price
1200 Euro

 

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Links

Pro

+Bright, matte IPS panel
+Runs silently
+Heats up moderately
+Good input devices
+Fast SSD
+Free mSATA slot
+Good battery life
 

Cons

-Poor webcam

Shortcut

What we like

The entire package is attractive: a sleek subnotebook with great performance.

What we miss

The panel should have stronger contrast.

What surprises us

Nothing.

The competition

Dell XPS 13, Apple MacBook Pro Retina 13, Acer Aspire R13 R7-371T, Asus Zenbook UX305, Toshiba Portégé Z30-A-12U, Samsung ATIV Book 9 Style.

Rating

Asus Zenbook UX303LN-R4274H - 03/08/2015 v4(old)
Sascha Mölck

Chassis
90 /  98 → 92%
Keyboard
84%
Pointing Device
87%
Connectivity
68 / 81 → 84%
Weight
70 / 78 → 81%
Battery
91%
Display
89%
Games Performance
84 / 68 → 100%
Application Performance
84 / 87 → 97%
Temperature
88 / 91 → 97%
Noise
90%
Audio
69 / 91 → 76%
Camera
35 / 85 → 41%
Average
79%
86%
Subnotebook - Weighted Average
> Notebook / Laptop Reviews and News > Reviews > Asus Zenbook UX303LN Subnotebook Review
Sascha Mölck, 2015-03-14 (Update: 2015-03-16)