The ThinkPad X1 Extreme Gen 5 and the Dell XPS 15 sit at the top of our list of best 15-inch laptops for several reasons. They’re both incredibly well-built and fast, and they offer outstanding large-format displays.
But they’re not identical. In fact, they’re quite different, with the XPS 15 aimed at being a more portable 15-inch laptop and the ThinkPad X1 Extreme Gen 5 serving as the most powerful mainstream ThinkPad. Check out our comparison to see which one is right for you.
Specs and configurations
Lenovo ThinkPad X1 Extreme Gen 5 | Dell XPS 15 9520 | |
Dimensions | 14.15 inches x 9.99 inches x 0.7 inches | 13.56 inches x 9.06 inches x 0.73 inches |
Weight | 4.14 pounds | 4.22 pounds (non-touch) 4.62 pounds (touch) |
Processor | Intel Core i7-12700H Intel Core i7-12800H Intel Core i9-12900H |
Intel Core i5-12500H Intel Core i7-12700H Intel Core i9-12900HK |
Graphics | Nvidia GeForce RTX 3050 Ti Nvidia GeForce RTX 3060 Nvidia GeForce RTX 3080 Ti |
Intel UHD graphics Intel Iris Xe graphics Nvidia GeForce RTX 3050 Nvidia GeForce RTX 3050 Ti |
RAM | 8GB DDR5 16GB DDR5 32GB DDR5 64GB DDR5 |
8GB DDR5 16GB DDR5 32GB DDR5 64GB DDR5 |
Display | 16.0-inch 16:10 Full HD+ (1920 x 1200) IPS 16.0-inch 16:10 WQXGA (2560 x 1600) IPS 165Hz 16.0-inch UHD+ (3840 x 2400) IPS |
15.6-inch 16:10 Full HD+ (1920 x 1200) IPS 15.6-inch 16:10 3.5K (3456 x 2160) OLED 15.6-inch 16:10 UHD+ (3840 x 2400) IPS |
Storage | 256GB PCIe 4.0 SSD 512GB PCIe 4.0 SSD 1TB PCIe 4.0 SSD 2TB PCIe 4.0 SSD 4TB PCIe 4.0 SSD |
512GB PCIe 4.0 SSD 1TB PCIe 4.0 SSD 2TB PCIe 4.0 SSD |
Touch | Optional | Optional |
Ports | 2 x USB-A 3.2 Gen 1 2 x USB-C with Thunderbolt 4 1 x HDMI 2.1 1 x 3.5mm audio jack 1 x nano SIM (optional) Full-size SD card reader |
1 x USB-C 3.2 Gen 2 2 x USB-C with Thunderbolt 4 1 x 3.5mm audio jack Full-size SD card reader |
Wireless | Wi-Fi 6E and Bluetooth 5.1 | Wi-Fi 6E and Bluetooth 5.2 |
Webcam | 1080p with Windows 11 Hello infrared camera | 720p with Windows 11 Hello infrared camera |
Operating system | Windows 11 | Windows 11 |
Battery | 90 watt-hours | 86 watt-hours |
Price | $1,458+ | $1,249+ |
Rating | 3.5 out of 5 stars | 4.5 out of 5 stars |
Design
The ThinkPad X1 Extreme Gen 5 is built for performance, but that doesn’t mean it’s thicker or heavier than the XPS 15, which is built to be a highly premium 15-inch ultrabook. In fact, the ThinkPad is thinner at 0.70 inches versus 0.73 inches and lighter at 4.14 pounds versus 4.62 pounds. It’s an inch deeper thanks to a slightly larger display and thicker display bezels.
The ThinkPad differs in its thermal design, which is more aggressively tuned to keep airflow maximized and heat down, and in its ease of expansion, including dual SSD slots. It’s also constructed of aluminum in the bottom chassis and carbon fiber in the lid, contributing to its light weight. The XPS 15 has an aluminum chassis and lid and carbon or glass fiber on the keyboard deck. It’s a denser laptop, but both machines are incredibly rigid and exude durability. The hinge on both is smooth and confident.
Aesthetically, the ThinkPad X1 Extreme Gen 5 maintains the iconic black-on-black color scheme with red accents, and the high-end display offers a carbon weave on the lid. It’s a bolder look than the streamlined silver chassis of the XPS 15 with either black or white keyboard deck. The XPS 15 looks more modern, but if you’re a fan of the ThinkPad aesthetic, then you’ll love the X1 Extreme Gen 5.
Both laptops have excellent keyboards with plenty of travel, precise, snappy switches, and comfortable bottoming actions. The ThinkPad’s keycaps are slightly larger and more sculpted, but the XPS 15 has better key spacing. Either way, you’ll love typing on both machines. The ThinkPad includes the usual TrackPoint nubbin in the middle of the keyboard, and its two buttons take space away from the relatively small touchpad. The XPS 15’s touchpad, on the other hand, is huge for a Windows machine and a better overall experience. Both laptops offer touch displays as an option.
The ThinkPad X1 Extreme Gen 5 is much stronger in connectivity, with a solid mix of Thunderbolt 4 and legacy ports. Both laptops support the latest wireless connectivity, but the ThinkPad also has optional 5G WWAN support for always-connected internet.
Finally, the ThinkPad also sports a 1080p webcam that’s much better than the XPS 15’s old-school 720p version. Both laptops have infrared cameras for Windows 11 Hello facial recognition along with fingerprint readers. The ThinkPad X1 Extreme Gen 5 offers better overall security and manageability for enterprises thanks to its vPro processor support.
Performance
We reviewed the ThinkPad X1 Extreme Gen 5 with the 45-watt Core i7-12800H CPU with 14 cores (six Performance and eight Efficient) and 20 threads, along with an Nvidia GeForce RTX 3070 Ti GPU. The XPS 15 we reviewed was equipped with a Core i7-12700H, a slightly slower-clocked version of the same processor, and an Nvidia GeForce RTX 3050 Ti.
The ThinkPad was faster in most of our benchmarks, with the XPS 15 holding its own in our Handbrake test when set in performance mode. We noticed that Lenovo ramped up the GPU in the ThinkPad’s performance mode, which is reflected in both the Pugetbench Premiere Pro benchmark that uses the GPU to speed up certain operations in Adobe’s application and the 3DMark Time Spy test. Both laptops are very fast for productivity tasks and can handle creative processes as well, but the ThinkPad is significantly faster.
Lenovo ThinkPad X1 Extreme Gen 5 (Core i7-12800H) |
Dell XPS 15 9520 (Core i7-12700H) |
|
Geekbench 5 (single / multi) |
Bal: 1,783 / 12,354 Perf: 1,768 / 12,020 |
Bal: 1,470 / 9,952 Perf: 1,714 / 11,053 |
Handbrake (seconds) |
Bal: 77 Perf: 77 |
Bal: 100 Perf: 77 |
Cinebench R23 (single / multi) |
Bal: 1,861 / 14,561 Perf: 1,859 / 14,609 |
Bal: 1,509 / 11,578 Perf: 1,806 / 13,313 |
Pugetbench Premiere Pro | Bal: 720 Perf: 928 |
Bal: 760 Perf: 729 |
3DMark Time Spy | Bal: 5,494 Perf: 9,114 |
Bal: 4,470 Perf: 4,520 |
The ThinkPad X1 Extreme Gen 5 can be configured with up to an Nvidia GeForce RTX 3080 Ti GPU, making it a much faster gaming laptop. The XPS 15 is okay with its RTX 3050 Ti, but the ThinkPad has much more headroom if gaming is important to you.
Display
We tested both laptops with their UHD+ IPS displays, and both produced excellent results when tested with our colorimeter. They’re bright, enjoy excellent contrast for IPS displays, and have wide and accurate colors. They may not have the inky blacks of OLED panels (although Dell offers that as an option), but they’re both spectacular displays for creators. They’re also great for productivity users and media consumers, the latter thanks to Dolby Vision high dynamic range (HDR) support that makes streaming high-res video a treat.
Lenovo ThinkPad X1 Extreme Gen 5 (IPS) |
Dell XPS 17 9720 (IPS) |
|
Brightness (nits) |
472 | 543 |
AdobeRGB gamut | 99% | 100% |
sRGB gamut | 100% | 100% |
Accuracy (DeltaE, lower is better) |
0.51 | 0.58 |
Contrast ratio | 1,520:1 | 1,870:1 |
Portability
These are both large laptops that take up some space in a backpack, and neither is particularly light. The ThinkPad X1 Extreme Gen 5 is a bit lighter and thinner, though, while being a bit deeper.
The ThinkPad also has a larger battery, and it saw slightly better battery life in our suite of tests. Given the power inside these laptops, though, neither is going to last a full day’s work doing any kind of demanding tasks. And both have larger power bricks that are a bit of a hassle to carry around.
Dell XPS 15 9520 (Core i7-12700H) |
Dell XPS 17 9720 (Core i7-12700H) |
|
Web browsing | 9 hours, 38 minutes | 7 hours, 36 minutes |
Video | 12 hours, 40 minutes | 13 hours, 5 minutes |
PCMark 10 Applications | 11 hours, 14 minutes | 7 hours, 3 minutes |
Conclusion
Sometimes, you need to consider how well a laptop meets its design criteria rather than how it directly matches up against another machine. The Dell XPS 15 is less expensive than the ThinkPad X1 Extreme Gen 5 but also can’t be configured with the same high-performance components.
But it’s better at being a thin and light 15-inch machine overall, with a cohesive design and construction that elevates it above the ThinkPad X1 Extreme Gen 5. If you’re looking for the most power, though, Lenovo’s laptop wins out.
Editors’ Recommendations