Notebookcheck

Face Off: Lenovo ThinkPad X260 vs. Dell XPS 12 9250 vs. Razer Blade Stealth

Subnotebook showdown. How much can you pack into a 12.5-inch notebook and how thin can you make it? We compare three very different subnotebooks of the same display size to see the pros and cons of each.

Plenty of options are available for notebooks 13 inches or larger, but anything smaller and variety shrinks due to the smaller footprint available for special or auxiliary features. For this Face Off, we pit the 12.5-inch business-oriented ThinkPad X260 against the leaner Razer Blade Stealth and versatile Dell XPS 12 detachable. Each of these three devices serve different markets with unique hardware for an interesting comparison.

We encourage users to check out our dedicated review pages below for more data and detailed analyses of each of the three models. This comparison is by no means a replacement, but a condensed aid for those on the fence.

Lenovo ThinkPad X260
Lenovo ThinkPad X260
Dell XPS 12 9250
Dell XPS 12 9250
Dell XPS 12 9250
Dell XPS 12 9250
Razer Blade Stealth
Razer Blade Stealth
Lenovo ThinkPad X260
Lenovo ThinkPad X260
Razer Blade Stealth
Razer Blade Stealth

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Case

Construction quality between the three notebooks is excellent all around with high-end materials that we expect no less from based on their high starting prices. The ThinkPad X260, XPS 12, and Blade Stealth utilize rubberized fiberglass, magnesium alloy, and metal, respectively. The Lenovo, however, is the only model that is MIL-STD-810G tested for resistance against humidity, temperature, dust, and other elements to give it the advantage.

The three models exhibit above average rigidity from top to bottom with no critical weak points. Small nitpicks include the imperfect assembly of our X260 test unit (unintended gaps between materials), weaker and fixed keyboard base of the XPS 12, and relatively more flexible chassis of the Blade Stealth.

In terms of size and weight, the Dell is the thinnest (excluding the keyboard base) and is slightly lighter than the Blade Stealth (including the keyboard base). Its fanless design has allowed for a smaller footprint and size than both the Lenovo and Razer notebooks. Unsurprisingly, the Lenovo notebook is the thickest and heaviest. The Blade Stealth is still one of the wider 12.5-inch subnotebooks in terms of width due to its thick display bezel and despite the overall thin profile.

Winner: Lenovo ThinkPad X260

321 mm / 12.6 inch 206 mm / 8.11 inch 13.1 mm / 0.516 inch 1.3 kg2.82 lbs306 mm / 12 inch 209 mm / 8.23 inch 20.3 mm / 0.799 inch 1.5 kg3.32 lbs291 mm / 11.5 inch 193 mm / 7.6 inch 8 mm / 0.315 inch 1.3 kg2.8 lbs

Ports in Comparison

Lenovo ThinkPad X260
Lenovo ThinkPad X260
Lenovo ThinkPad X260
Lenovo ThinkPad X260
Dell XPS 12 9250
Dell XPS 12 9250
Dell XPS 12 9250
Dell XPS 12 9250
Razer Blade Stealth
Razer Blade Stealth
Dell XPS 12 9250
Dell XPS 12 9250
Lenovo ThinkPad X260
Lenovo ThinkPad X260
Razer Blade Stealth
Razer Blade Stealth
Razer Blade Stealth
Razer Blade Stealth

Connectivity

Available ports differ dramatically between the three devices. The Lenovo system is the only one lacking USB Type-C and makes up for it with a handful of traditional ports including mDP, RJ-45, and standard USB 3.0 Type-A ports. Its docking port, SIM slot, and SmartCard reader are especially important as they distinguish the business notebook from consumer Ultrabooks and convertibles.

Meanwhile, the XPS 12 and Blade Stealth are designed to be thin with nearly all ports stripped away excluding USB ports and audio. Fortunately, both models make use of the versatile USB 3.1 Gen. 2 port with integrated Thunderbolt 3 for compatibility with a wide range of adapters.

Winner: Lenovo ThinkPad X260

Ports and Connections

Lenovo ThinkPad X260 Dell XPS 12 9250 Razer Blade Stealth
USB 3x USB 3.0 2x USB 3.1 Gen. 2 2x USB 3.0, 1x USB 3.1 Gen. 2
Video-out 1x mDP, 1x HDMI 2x USB 3.1 Gen. 2 1x HDMI, 1x USB 3.1 Gen. 2
Other SD reader, SIM slot (optional), RJ-45, Kensington Lock, SmartCard reader, 3.5 mm audio, Docking port MicroSD reader, 1x 3.5 mm audio, Noble Lock 1x 3.5 mm audio
Storage Bays 1x 2.5-inch SATA III 1x M.2 1x M.2

Input Devices

The Lenovo and Dell notebooks both have excellent keyboards with firm feedback and adequate travel. While this is somewhat expected from a Lenovo ThinkPad, it was surprising to find a similar experience on the XPS 12 as detachable keyboard bases tend to feel cheaper and softer in comparison.

The Blade Stealth has a much less comfortable keyboard due to its lighter feedback and shallow travel. It's clear that the main draw of the keyboard is its individually backlit RGB keys for virtually unlimited levels of color customization versus just two levels of White backlighting on the Lenovo and Dell.

As for the touchpads, the Razer offers the larger surface area (10.5 x 6.5 cm) followed by the Dell (10.0 x 5.5 cm) and Lenovo (8.7 x 5.3 cm). The dedicated mouse keys and recognizable TrackPoint on the Lenovo all offer a potentially more comfortable experience despite the small touchpad. Meanwhile, the integrated left and right click keys are comparatively more difficult to press on the Razer than the Dell despite its greater surface area. Thus, double-tapping is by far the easier way to go on the Razer.

Winner: Keyboard -- Tie -- Lenovo ThinkPad X260 & Dell XPS 12 9250

              Touchpad -- Lenovo ThinkPad X260

Lenovo ThinkPad X260
Lenovo ThinkPad X260
Lenovo ThinkPad X260
Lenovo ThinkPad X260
Dell XPS 12 9250
Dell XPS 12 9250
Dell XPS 12 9250
Dell XPS 12 9250
Razer Blade Stealth
Razer Blade Stealth
Razer Blade Stealth
Razer Blade Stealth
Lenovo ThinkPad X260
Lenovo ThinkPad X260
Dell XPS 12 9250
Dell XPS 12 9250
Razer Blade Stealth
Razer Blade Stealth

Display

The XPS 12 and Blade Stealth carry almost identical 4K UHD panels manufactured by Sharp. Our measured contrast, color, and backlight brightness values are also quite similar between the two systems. Our Razer system, however, oddly exhibited much slower gray-gray response times despite having almost identical Black-White response times as the Dell. The displays are otherwise essentially like-for-like with full sRGB coverage each.

The matte ThinkPad display on our test unit offers a native resolution of just 768p for almost one-third the pixel density. Aside from this obvious disadvantage, the screen also suffers from, less accurate colors, narrower color space (72 percent sRGB), a dimmer backlight, and use of pulse-width modulation for brightness control. Thus, the lower-end 768p panel has more than just a resolution drawback compared to the XPS 12 and Blade Stealth. We can't, however, speak about the higher resolution configurations just yet.

Winner: Dell XPS 12 9250

Lenovo ThinkPad X260
Lenovo ThinkPad X260
Lenovo ThinkPad X260
Lenovo ThinkPad X260
Dell XPS 12 9250
Dell XPS 12 9250
Dell XPS 12 9250
Dell XPS 12 9250
Razer Blade Stealth
Razer Blade Stealth
Razer Blade Stealth
Razer Blade Stealth
Displays at a Glance

Lenovo ThinkPad X260 Dell XPS 12 9250 Razer Blade Stealth
Size 12.5-inch IPS 12.5-inch IPS 12.5-inch IPS
Native Resolution 1366 x 768 3840 x 2160 3840 x 2160
Pixel Density 125 PPI 352 PPI 352 PPI
Panel ID Lenovo LEN40E5 M125NWR3 R0 Sharp SHP143D Sharp SHP144D
Lenovo ThinkPad X260-20F60041GEDell XPS 12 9250 4KRazer Blade Stealth UHD i7-6500U
Response Times
Response Time Grey 50% / Grey 80% *
42.8 (18.8, 24)
36 (19, 17)
63.2 (27.6, 35.6)
Response Time Black / White *
27.2 (12.4, 14.8)
35 (8, 27)
38 (8, 30)
PWM Frequency
220 (90)
1000 (20)
Screen
Brightness middle
262
437
415
Brightness
251
399
399
Brightness Distribution
88
81
93
Black Level *
0.26
0.35
0.309
Contrast
1008
1249
1343
Colorchecker DeltaE2000 *
3.55
3.56
3.78
Colorchecker DeltaE2000 max. *
5.85
9.3
7.2
Greyscale DeltaE2000 *
3.36
2.67
3.38
Gamma
2.39 92%
2.17 101%
2.23 99%
CCT
5985 109%
6681 97%
7329 89%
Color Space (Percent of AdobeRGB 1998)
45.9
86
85.1
Color Space (Percent of sRGB)
100
99.3
Total Average (Program / Settings)

* ... smaller is better

Lenovo ThinkPad X260
Lenovo ThinkPad X260
Lenovo ThinkPad X260
Lenovo ThinkPad X260
Dell XPS 12 9250
Dell XPS 12 9250
Dell XPS 12 9250
Dell XPS 12 9250
Razer Blade Stealth
Razer Blade Stealth
Razer Blade Stealth
Razer Blade Stealth

Performance

CPU Performance

Lenovo, Dell, and Razer all offer multiple CPU options beyond what we have here, so this comparison is only between the configurations on hand.

The Core m series was designed for fanless systems such as the XPS 12 and runs at less than one-third of the TDP of the i5-6200U and i7-6500U in the Lenovo and Razer, respectively. Consequently, raw performance from the Dell system is roughly 10 percent slower in single-threaded benchmarks and 30 percent slower in multi-threaded benchmarks according to CineBench R15.

Serviceability is simpler on the Lenovo and Razer compared to the Dell detachable. Nonetheless, the XPS 12 offers two SODIMM slots for expansion compared to just one in the Lenovo and none in the Razer.

See our dedicated CPU pages on the Core i5-6200U, Core m7-6Y75, and Core i7-6500U for more benchmarks and comparisons.

Hardware at a Glance

Lenovo ThinkPad X260 Dell XPS 12 9250 Razer Blade Stealth
CPU 2.3 GHz Core i5-6200U 1.2 GHz Core m7-6Y75 2.5 GHz Core i7-6500U
TDP 15 W 4.5 W 15 W
RAM 4 GB DDR4-2133, Single-channel, 1x SODIMM 8 GB LPDDR3-1600, Dual-channel, 2x SODIMM 8 GB DDR3, Dual-channel, Soldered
GPU Intel HD Graphics 520 Intel HD Graphics 515 Intel HD Graphics 520
Lenovo ThinkPad X260
Lenovo ThinkPad X260
Lenovo ThinkPad X260
Lenovo ThinkPad X260
Razer Blade Stealth
Razer Blade Stealth
Razer Blade Stealth
Razer Blade Stealth
Cinebench R15
CPU Single 64Bit (sort by value)
Lenovo ThinkPad X260-20F60041GE
112 Points ∼51%
Dell XPS 12 9250 4K
104 Points ∼48%
Razer Blade Stealth UHD i7-6500U
115 Points ∼53%
CPU Multi 64Bit (sort by value)
Lenovo ThinkPad X260-20F60041GE
289 Points ∼7%
Dell XPS 12 9250 4K
196 Points ∼4%
Razer Blade Stealth UHD i7-6500U
293 Points ∼7%
Cinebench R11.5
CPU Single 64Bit (sort by value)
Lenovo ThinkPad X260-20F60041GE
1.32 Points ∼54%
Dell XPS 12 9250 4K
0.98 Points ∼40%
Razer Blade Stealth UHD i7-6500U
1.33 Points ∼55%
CPU Multi 64Bit (sort by value)
Lenovo ThinkPad X260-20F60041GE
3.19 Points ∼7%
Dell XPS 12 9250 4K
2.19 Points ∼5%
Razer Blade Stealth UHD i7-6500U
3.42 Points ∼8%
Cinebench R10
Rendering Single CPUs 64Bit (sort by value)
Lenovo ThinkPad X260-20F60041GE
5693 Points ∼55%
Rendering Multiple CPUs 64Bit (sort by value)
Lenovo ThinkPad X260-20F60041GE
12606 Points ∼17%
wPrime 2.0x
1024m (sort by value)
Razer Blade Stealth UHD i7-6500U
481.807 s * ∼6%
32m (sort by value)
Razer Blade Stealth UHD i7-6500U
16.106 s * ∼3%
Super Pi Mod 1.5 XS 32M - --- (sort by value)
Razer Blade Stealth UHD i7-6500U
675.153 Seconds * ∼3%
3DMark
Fire Strike Extreme Physics (sort by value)
Dell XPS 12 9250 4K
2726 Points ∼9%
Razer Blade Stealth UHD i7-6500U
4760 Points ∼17%
1920x1080 Fire Strike Physics (sort by value)
Lenovo ThinkPad X260-20F60041GE
4151 Points ∼13%
Dell XPS 12 9250 4K
2786 Points ∼9%
Razer Blade Stealth UHD i7-6500U
4792 Points ∼15%
1280x720 Cloud Gate Standard Physics (sort by value)
Lenovo ThinkPad X260-20F60041GE
3070 Points ∼8%
Dell XPS 12 9250 4K
2003 Points ∼5%
Razer Blade Stealth UHD i7-6500U
3367 Points ∼9%
1280x720 offscreen Ice Storm Unlimited Physics (sort by value)
Razer Blade Stealth UHD i7-6500U
42493 Points ∼49%
1920x1080 Ice Storm Extreme Physics (sort by value)
Dell XPS 12 9250 4K
18563 Points ∼22%
Razer Blade Stealth UHD i7-6500U
35705 Points ∼43%
PCMark 7
System Storage (sort by value)
Lenovo ThinkPad X260-20F60041GE
2985 Points ∼42%
Dell XPS 12 9250 4K
4299 Points ∼60%
Razer Blade Stealth UHD i7-6500U
4449 Points ∼62%
Computation (sort by value)
Lenovo ThinkPad X260-20F60041GE
13397 Points ∼47%
Dell XPS 12 9250 4K
11915 Points ∼42%
Razer Blade Stealth UHD i7-6500U
14648 Points ∼52%
Creativity (sort by value)
Lenovo ThinkPad X260-20F60041GE
6703 Points ∼46%
Dell XPS 12 9250 4K
8405 Points ∼58%
Razer Blade Stealth UHD i7-6500U
8814 Points ∼61%
Entertainment (sort by value)
Lenovo ThinkPad X260-20F60041GE
3085 Points ∼29%
Dell XPS 12 9250 4K
2797 Points ∼26%
Razer Blade Stealth UHD i7-6500U
3582 Points ∼33%
Productivity (sort by value)
Lenovo ThinkPad X260-20F60041GE
2620 Points ∼24%
Dell XPS 12 9250 4K
2067 Points ∼19%
Razer Blade Stealth UHD i7-6500U
2610 Points ∼24%
Lightweight (sort by value)
Lenovo ThinkPad X260-20F60041GE
3186 Points ∼44%
Dell XPS 12 9250 4K
2717 Points ∼37%
Razer Blade Stealth UHD i7-6500U
3037 Points ∼41%
Score (sort by value)
Lenovo ThinkPad X260-20F60041GE
3777 Points ∼41%
Dell XPS 12 9250 4K
4318 Points ∼47%
Razer Blade Stealth UHD i7-6500U
5197 Points ∼57%
PCMark 8
Work Score Accelerated v2 (sort by value)
Lenovo ThinkPad X260-20F60041GE
4335 Points ∼67%
Dell XPS 12 9250 4K
3084 Points ∼47%
Razer Blade Stealth UHD i7-6500U
3603 Points ∼55%
Creative Score Accelerated v2 (sort by value)
Lenovo ThinkPad X260-20F60041GE
3735 Points ∼35%
Dell XPS 12 9250 4K
2903 Points ∼28%
Razer Blade Stealth UHD i7-6500U
3795 Points ∼36%
Home Score Accelerated v2 (sort by value)
Lenovo ThinkPad X260-20F60041GE
3262 Points ∼54%
Dell XPS 12 9250 4K
2277 Points ∼37%
Razer Blade Stealth UHD i7-6500U
2868 Points ∼47%
X264 HD Benchmark 4.0
Pass 2 (sort by value)
Razer Blade Stealth UHD i7-6500U
20.57 fps ∼1%
Pass 1 (sort by value)
Razer Blade Stealth UHD i7-6500U
110.66 fps ∼41%

* ... smaller is better

GPU Performance

The Razer Blade consistently outperforms the Lenovo and Dell in raw GPU benchmarks despite carrying the same HD Graphics 520 GPU as the Lenovo. Like the older generation of Intel HD graphics, the HD 520 is designed to be scalable between various Core ix CPUs. Fire Strike Graphics shows Lenovo and Razer to be about 20 percent and 40 percent ahead of the HD Graphics 515, respectively, in the Dell detachable. The graphical power between them is still far too limiting for modern 3D titles save for less demanding RTS games like LoL or Starcraft II.

See our dedicated GPU pages on the Intel HD Graphics 520 and HD Graphics 515 for more benchmarks and comparisons.

Cinebench R15 - OpenGL 64Bit (sort by value)
Lenovo ThinkPad X260-20F60041GE
34.88 fps ∼14%
Dell XPS 12 9250 4K
26.39 fps ∼11%
Razer Blade Stealth UHD i7-6500U
36.6 fps ∼15%
3DMark
Fire Strike Extreme Graphics (sort by value)
Dell XPS 12 9250 4K
278 Points ∼1%
Razer Blade Stealth UHD i7-6500U
380 Points ∼2%
1920x1080 Fire Strike Graphics (sort by value)
Lenovo ThinkPad X260-20F60041GE
727 Points ∼2%
Dell XPS 12 9250 4K
606 Points ∼1%
Razer Blade Stealth UHD i7-6500U
864 Points ∼2%
1280x720 Cloud Gate Standard Graphics (sort by value)
Lenovo ThinkPad X260-20F60041GE
5978 Points ∼3%
Dell XPS 12 9250 4K
4362 Points ∼2%
Razer Blade Stealth UHD i7-6500U
6151 Points ∼3%
1280x720 offscreen Ice Storm Unlimited Graphics Score (sort by value)
Razer Blade Stealth UHD i7-6500U
79473 Points ∼15%
1920x1080 Ice Storm Extreme Graphics (sort by value)
Dell XPS 12 9250 4K
18749 Points ∼3%
Razer Blade Stealth UHD i7-6500U
27147 Points ∼4%
3DMark 11 - 1280x720 Performance GPU (sort by value)
Lenovo ThinkPad X260-20F60041GE
1210 Points ∼2%
Dell XPS 12 9250 4K
1008 Points ∼2%
Razer Blade Stealth UHD i7-6500U
1334 Points ∼3%

Stress Test

To test system stability, we run both Prime95 and FurMark to simulate maximum stress. These unrealistic conditions do not represent daily workloads, but are instead meant to put both the CPU and GPU at 100 percent capacity.

All systems throttle when subjected to such extreme workloads with the Dell system struggling the most and at lower stable clock rates for both the CPU and integrated GPU. The Lenovo system stabilizes at the warmest core temperature of about 87 C compared to 82 C and 83 C for the Dell and Razer, respectively.

Unfortunately, our Lenovo editor makes no mention of the stable GPU clock rate, so we cannot compare its overall performance against the other two models. No system was observed to throttle when under gaming loads.

Winner: Razer Blade Stealth

Lenovo ThinkPad X260
Lenovo ThinkPad X260
Lenovo ThinkPad X260
Lenovo ThinkPad X260
Dell XPS 12 9250
Dell XPS 12 9250
Dell XPS 12 9250
Dell XPS 12 9250
Razer Blade Stealth
Razer Blade Stealth
Razer Blade Stealth
Razer Blade Stealth
CPU and GPU Clock Rates Under Stress

Lenovo ThinkPad X260 Dell XPS 12 9250 Razer Blade Stealth
Rated GPU Core Clock (MHz) 300 300 300
Stable GPU Core Clock on FurMark (MHz) -- 550 850
Rated CPU Core Clock (GHz) 2.3 1.2 2.5
Stable CPU Core Clock on Prime95 (GHz) 1.4 0.9 - 1.0 1.4
Average CPU temperature 87 C 82 C 83 C
Lenovo ThinkPad X260
Lenovo ThinkPad X260
Lenovo ThinkPad X260
Lenovo ThinkPad X260
Dell XPS 12 9250
Dell XPS 12 9250
Dell XPS 12 9250
Dell XPS 12 9250
Razer Blade Stealth
Razer Blade Stealth
Razer Blade Stealth
Razer Blade Stealth

 

 

 

Emissions

System Noise & Temperature

As expected, the thinner and more powerful system runs louder and warmer than its two competitors. All three devices run silently when idling or under low loads with the Razer having a much louder maximum when under extreme Prime95+FurMark stress. When gaming, however, the Razer system is really no louder than the Lenovo at the cost of warmer surface temperatures. Thus, the thicker ThinkPad X260 is both the quieter and cooler notebook compared to the Blade Stealth.

The Dell convertible utilizes no active cooling solution in comparison. Nonetheless, its surfaces can be warmer than the Lenovo when running heavier processing loads.

Winner: Lenovo ThinkPad X260

Average Fan Noise and Surface Temperature

Lenovo ThinkPad X260 Dell XPS 12 9250 Razer Blade Stealth
Fan Noise when idling 29.4 dB(A) -- dB(A) 29.3 dB(A)
Fan Noise under high loads 33.2 dB(A) -- dB(A) 33.1 - 38.8 dB(A)
Average surface temperature when idling 27.5 C 29.3 C 26.7 C
Average surface temperature under high loads 31.8 C 37.9 C 38.2 C
Ambient temperature 20.2 C 21.6 C 21.5 C

Battery Life

The Lenovo system can run for over two hours longer than both the Dell and Razer. This is especially disappointing for the Razer considering that its battery capacity is almost as large as the Lenovo and almost twice that of the Dell while still coming out the shortest in terms of overall runtimes.

It's worth noting that all three notebooks sport non-removable internal battery packs. In the case of our ThinkPad X260 test unit, the internal 3-cell battery pack is just 23 Wh with optional 23 Wh or 48 Wh secondary external options. Thus, our Lenovo runtimes below are reflective of the internal 23 Wh primary battery plus external 23 Wh secondary battery. The Lenovo data would have been halved had we performed the tests with the internal battery pack only.

Winner: Lenovo ThinkPad X260

Lenovo ThinkPad X260-20F60041GE
46 Wh
Dell XPS 12 9250 4K
28 Wh
Razer Blade Stealth UHD i7-6500U
45 Wh
Battery Runtime
Reader / Idle
795
370
437
WiFi v1.3
396
243
228
Load
160
93
76

Verdict

The marginal costs from moving to a thinner form factor get harder to accept when USB Type-C ports become the only available options.
The marginal costs from moving to a thinner form factor get harder to accept when USB Type-C ports become the only available options.
The marginal costs from moving to a thinner form factor get harder to accept when USB Type-C ports become the only available options.
The marginal costs from moving to a thinner form factor get harder to accept when USB Type-C ports become the only available options.

Pushing the limits on how thin a 12.5-inch notebook can be will net you the Blade Stealth or even the detachable XPS 12 if on a fanless design. Both devices clearly lack the connectivity options as found on the ThinkPad X260, but the versatile USB Type-C Gen. 2 ports should ensure better compatibility with adapters for the right occasion. The Dell DA200 adapter, for example, provides VGA, HDMI, USB 3.0, and RJ-45 all through a single USB Type-C Gen. 2 port.

The Lenovo offers a healthy number of options without the use of any adapters, though it notably lacks USB Type-C for what could have been better future-proofing. Its 768p display is somewhat disappointing and it is of course thicker and heavier than the other two models. Surprisingly, the Blade Stealth still carries the larger footprint despite having far fewer options than the Lenovo.

The ThinkPad X260 is still the better option for travel and work. Its slight disadvantages in weight and thickness are well offset by its innate set of features and familiar Chiclet keyboard. A higher resolution panel is definitely recommended for the added clarity and screen real estate.

Lenovo ThinkPad X260Dell XPS 12 9250Razer Blade Stealth

+ Fiberglass chassis; MIL-STD-810G certification

+ Comfortable keyboard

+ More connectivity features and options; Docking port, optional SIM slot

+ Secondary battery options

+ Magnesium alloy chassis

+ Complete sRGB

+ Comfortable keyboard

+ 2x SODIMM slots, 2x USB Type-C Gen. 2 ports

+ Lightweight, thin, fanless design

+ Metal chassis

+ Complete sRGB coverage

+ Lightweight, thin

+ Individually lit RGB keyboard

- Dimmer 1366 x 768 resolution panel; Narrower sRGB color coverage

- Warmer CPU temperatures when under load

- Heavier and thicker

- Less accessible internals

- Fewer connectivity options

- Weaker CPU and GPU performances

- Comparatively weaker keyboard base

- Fewer connectivity options; No SD reader

- Wider in width

- Slightly more flexible chassis

- Non-expandable RAM

- Potentially louder fan noise

- Shorter runtimes

- Less comfortable keyboard; Limited travel and feedback

Lenovo ThinkPad X260

Pricecompare

Dell XPS 12 9250

Pricecompare

Razer Blade Stealth

Pricecompare

See more quick comparisons in our Face Off series:

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> Notebook / Laptop Reviews and News > Reviews > Face Off: Lenovo ThinkPad X260 vs. Dell XPS 12 9250 vs. Razer Blade Stealth
Allen Ngo, 2016-04-27 (Update: 2019-04-30)
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.