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Dell XPS 13 vs. Asus ZenBook UX333FA: Kaby Lake-R can still outperform Whiskey Lake-U

Dell XPS 13 vs. Asus ZenBook UX333FA: Kaby Lake-R can still outperform Whiskey Lake-U
Dell XPS 13 vs. Asus ZenBook UX333FA: Kaby Lake-R can still outperform Whiskey Lake-U
Turbo Boost becomes the deciding factor that gives the Dell laptop a slight edge in CPU performance even though the Asus uses a newer Intel processor. Even so, the ZenBook carries a few other advantages to make it worth considering especially in regards to price and storage.

Asus took the initiative last month to launch its 2019 13.3-inch ZenBook UX333 series complete with Whiskey Lake-U ahead of everyone else including Dell. Most competitors are expected to announce their own updated Ultrabooks with Whiskey Lake-U at CES 2019. How does Asus' new 13.3-inch ZenBook compare to the current Kaby Lake-R XPS 13 lineup?

In terms of raw CPU performance, both the older Core i5-8250U and i7-8550U in the XPS 13 series can still consistently outperform the newer i5-8265U in the ZenBook UX333FA. We are able to see the performance delta over time between the two models by looping CineBench R15 Multi-Thread in a loop as shown by our graph below. The i5-8250U XPS 13 scores almost 14 percent higher even after accounting for Turbo Boost fluctuations after prolonged processing stress. Keep in mind that the i5-8265U in the Asus is supposed to directly succeed the i5-8250U.

The performance advantages come at the cost of core temperature. The i5-8250U in the Dell averages at around 89 C compared to just under 80 C on the Asus when subjected to similar stressful conditions. Furthermore, PCMark 10 scores are within single-digit percentages of one another to suggest just minor performance differences during day-to-day loads.

Outside of the processor, there are pros and cons to the connectivity of each model. XPS 13 9370 owners must deal with the lack of HDMI and full-size USB Type-A while ZenBook UX333 owners have no Thunderbolt 3 and are still reliant on a proprietary AC adapter. Additionally, the Dell display is much brighter albeit with more ghosting. Differences like these are arguably more impactful to most users when compared to the minor gap in processing power.

Price is also in Asus' favor. The UX333 retails for $850 USD with a Core i5 CPU, 8 GB of RAM, and a 256 GB SSD whereas the XPS 13 9370 starts at $930 USD with just half the RAM and storage capacity. The UX333 will eventually have discrete GeForce MX150 options as well for much faster graphics potential and we can't forget about its superior webcam positioning, either.

We recommend checking out our dedicated reviews below for more information on the XPS 13 and ZenBook UX433.

Asus ZenBook UX333Dell XPS 13 9370
CPUCore i5-8265U or i7-8565UCore i5-8250U or i7-8550U
GPUUHD Graphics 620 or GeForce MX150 w/ 2 GB GDDR5 VRAMUHD Graphics 620 only
Display1080p only, no touchscreen, matte or glossy, ~250 nit1080p or 4K UHD, touchscreen optional, matte or glossy, ~400 nit
RAM8 GB up to 16 GB LPDDR34 GB up to 16 GB LPDDR3
AC adapterProprietary AC charger and portUSB Type-C charger
WirelessIntel 9560Killer 1435
Ports1x USB Type-C Gen. 2, USB Type-A, HDMI, 3.5 mm combo audio, MicroSD reader2x Thunderbolt 3, 1x USB Type-C, 3.5 mm combo audio, MicroSD reader
Battery50 Wh52 Wh
Dimensions16.9 x 302 x 18911.6 x 302 x 199
Weight1.19 kg1.21 kg
Starting Price$850$930

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Asus ZenBook 13 UX333FA UHD Graphics 620, 8265U, WDC PC SN520 SDAPNUW-256G; CPU Multi 64Bit: Ø512 (506.95-595.21)
Dell XPS 13 9370 i7 UHD UHD Graphics 620, 8550U, Toshiba XG5 KXG50ZNV512G; CPU Multi 64Bit: Ø597 (581.49-636.79)
Dell XPS 13 9370 FHD i5 UHD Graphics 620, 8250U, Toshiba XG5 KXG50ZNV256G; CPU Multi 64Bit: Ø593 (543-676.82)
Dell XPS 13 9360 FHD i7 Iris Iris Plus Graphics 640, 7560U, Toshiba XG4 NVMe (THNSN5512GPUK); CPU Multi 64Bit: Ø327 (321.49-333.99)
Cinebench R15
CPU Single 64Bit
Dell XPS 13 9370 i7 UHD
Intel Core i7-8550U
165 Points ∼76%
Asus ZenBook 13 UX333FA
Intel Core i5-8265U
159 Points ∼73%
Dell XPS 13 9360 FHD i7 Iris
Intel Core i7-7560U
153 Points ∼70%
Dell XPS 13 9370 FHD i5
Intel Core i5-8250U
144 Points ∼66%
Dell XPS 13 9360-4764
Intel Core i7-7500U
142 Points ∼65%
Dell XPS 13 9365-4537 2-in-1
Intel Core i5-7Y54
119 Points ∼55%
CPU Multi 64Bit
Dell XPS 13 9370 FHD i5
Intel Core i5-8250U
669 Points ∼15%
Dell XPS 13 9370 i7 UHD
Intel Core i7-8550U
639 Points ∼15%
Asus ZenBook 13 UX333FA
Intel Core i5-8265U
603 Points ∼14%
Dell XPS 13 9360-4764
Intel Core i7-7500U
337 Points ∼8%
Dell XPS 13 9360 FHD i7 Iris
Intel Core i7-7560U
336 Points ∼8%
Dell XPS 13 9365-4537 2-in-1
Intel Core i5-7Y54
257 Points ∼6%
3DMark
1280x720 Cloud Gate Standard Physics
Dell XPS 13 9370 i7 UHD
Intel Core i7-8550U
6973 Points ∼18%
Asus ZenBook 13 UX333FA
Intel Core i5-8265U
6292 Points ∼16%
Dell XPS 13 9360-4764
Intel Core i7-7500U
4038 Points ∼10%
Dell XPS 13 9360 FHD i7 Iris
Intel Core i7-7560U
3651 Points ∼9%
1280x720 Cloud Gate Standard Graphics
Dell XPS 13 9360 FHD i7 Iris
Intel Core i7-7560U
11232 Points ∼6%
Asus ZenBook 13 UX333FA
Intel Core i5-8265U
10660 Points ∼6%
Dell XPS 13 9370 i7 UHD
Intel Core i7-8550U
9533 Points ∼5%
Dell XPS 13 9360-4764
Intel Core i7-7500U
8826 Points ∼5%
PCMark 8 - Home Score Accelerated v2
Dell XPS 13 9370 FHD i5
Intel Core i5-8250U
3994 Points ∼66%
Dell XPS 13 9360 FHD i7 Iris
Intel Core i7-7560U
3902 Points ∼64%
Dell XPS 13 9370 i7 UHD
Intel Core i7-8550U
3371 Points ∼55%
Asus ZenBook 13 UX333FA
Intel Core i5-8265U
3150 Points ∼52%
Dell XPS 13 9365-4537 2-in-1
Intel Core i5-7Y54
2706 Points ∼44%
PCMark 10
Digital Content Creation
Asus ZenBook 13 UX333FA
Intel Core i5-8265U
3142 Points ∼26%
Dell XPS 13 9370 FHD i5
Intel Core i5-8250U
3058 Points ∼26%
Dell XPS 13 9370 i7 UHD
Intel Core i7-8550U
2994 Points ∼25%
Productivity
Asus ZenBook 13 UX333FA
Intel Core i5-8265U
6025 Points ∼62%
Dell XPS 13 9370 FHD i5
Intel Core i5-8250U
5926 Points ∼61%
Dell XPS 13 9370 i7 UHD
Intel Core i7-8550U
5475 Points ∼56%
Essentials
Dell XPS 13 9370 FHD i5
Intel Core i5-8250U
7988 Points ∼73%
Asus ZenBook 13 UX333FA
Intel Core i5-8265U
7786 Points ∼71%
Dell XPS 13 9370 i7 UHD
Intel Core i7-8550U
7410 Points ∼67%
Score
Asus ZenBook 13 UX333FA
Intel Core i5-8265U
3787 Points ∼49%
Dell XPS 13 9370 FHD i5
Intel Core i5-8250U
3764 Points ∼48%
Dell XPS 13 9370 i7 UHD
Intel Core i7-8550U
3728 Points ∼48%
304 mm / 12 inch 200 mm / 7.87 inch 15 mm / 0.591 inch 1.2 kg2.65 lbs304 mm / 12 inch 201 mm / 7.91 inch 15 mm / 0.591 inch 1.2 kg2.71 lbs302 mm / 11.9 inch 189 mm / 7.44 inch 16.9 mm / 0.665 inch 1.2 kg2.62 lbs302 mm / 11.9 inch 199 mm / 7.83 inch 11.6 mm / 0.4567 inch 1.2 kg2.67 lbs
Asus ZenBook 13 UX333FA
AU Optronics B133HAN05.C, IPS, 13.3, 1920x1080
Dell XPS 13 9370 i7 UHD
ID: Sharp SHP148B, Name: LQ133D1, Dell P/N: 8XDHY, IPS, 13.3, 3840x2160
Dell XPS 13 9370 FHD i5
SHP1484, IPS, 13.3, 1920x1080
Dell XPS 13 9365-4537 2-in-1
Sharp LQ133Z1, IPS, 13.3, 3200x1800
Dell XPS 13 9360 FHD i7 Iris
SHP1449, IPS, 13.3, 1920x1080
Response Times
Response Time Grey 50% / Grey 80% *
54.4 (24.4, 30)
69.6 (32.4, 37.2)
62.4 (32.4, 30)
48 (26, 22)
41.2 (22.8, 18.4)
Response Time Black / White *
37.6 (18.8, 18.8)
44 (24.4, 19.6)
45.6 (24.4, 21.2)
28 (16, 12)
30 (17.6, 12.4)
PWM Frequency
3759 (20)
1008 (20)
19530 (80)
Screen
Brightness middle
276
478.5
428
348
461
Brightness
263
466
405
306
418
Brightness Distribution
89
86
87
78
85
Black Level *
0.21
0.43
0.26
0.2
0.2
Contrast
1314
1113
1646
1740
2305
Colorchecker DeltaE2000 *
4.85
3.09
3.8
2.79
5.4
Colorchecker DeltaE2000 max. *
8.24
5.94
7.2
5.53
12.2
Colorchecker DeltaE2000 calibrated *
1.6
2.06
Greyscale DeltaE2000 *
5.7
2.4
4.4
3.47
5.4
Gamma
2.08 106%
2.063 107%
2.21 100%
2.54 87%
2.15 102%
CCT
7424 88%
6883 94%
7067 92%
6564 99%
7258 90%
Color Space (Percent of AdobeRGB 1998)
63
69.47
62.8
60
48.6
Color Space (Percent of sRGB)
98
98.36
96.4
93
76.9
Total Average (Program / Settings)

* ... smaller is better

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> Notebook / Laptop Reviews and News > News > News Archive > Newsarchive 2018 12 > Dell XPS 13 vs. Asus ZenBook UX333FA: Kaby Lake-R can still outperform Whiskey Lake-U
Allen Ngo, 2018-12-29 (Update: 2018-12-29)
Allen Ngo
Allen Ngo - US Editor in Chief
After graduating with a B.S. in environmental hydrodynamics from the University of California, I studied reactor physics to become licensed by the U.S. NRC to operate nuclear reactors. There's a striking level of appreciation you gain for everyday consumer electronics after working with modern nuclear reactivity systems astonishingly powered by computers from the 80s. When I'm not managing day-to-day activities and US review articles on Notebookcheck, you can catch me following the eSports scene and the latest gaming news.