Dell XPS 15 7590 FHD vs 4K: which should you buy?

(Image credit: Dell)

The three XPS 15 displays — FHD, 4K IPS, and 4K OLED — are all built into a chassis that has the same dimensions, ports, and features, though some lower-end performance hardware (and a lower price) is only available with the FHD screens. Below is a comparison of the displays and the hardware options available with each different type of display.

Dell XPS 15 FHD vs. 4K tech specs

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Header Cell - Column 0 Dell XPS 15 (FHD)Dell XPS 15 (4K)
Display size15.6 inches15.6 inches
Brightness500 nitsIPS: 500 nits; OLED:400 nits
Color100-percent sRGBIPS: 100-percent AdobeRGB; OLED: 100-percent DCI-P3
Contrast1500:1IPS: 1500:1; OLED: 100000:1
Response time35msIPS: 35ms; OLED: 1ms
Refresh rate60Hz60Hz
Power draw4.30WIPS: 10.41W; OLED: 14.80W
TouchNoIPS: Yes; OLED: No
Pen supportNoIPS: Yes; OLED: No
ProcessorIntel Core i5-9300H; Intel Core i7-9750H; Intel Core i9-9980HKIntel Core i7-9750H; Intel Core i9-9980HK
Storage256GB, 512GB, 1TB, 2TB M.2 PCIe SSD256GB, 512GB, 1TB, 2TB M.2 PCIe SSD
Memory8GB, 16GB, 32GB DDR4-2666MHz16GB, 32GB DDR4-2666MHz
GraphicsIntel UHD Graphics 630; NVIDIA GTX 1650NVIDIA GTX 1650
Battery56Wh, 97Wh97Wh


The refreshed Dell XPS 15 7590 now has three display options to choose from, including FHD IPS, 4K IPS, and 4K OLED. While resolution is no doubt the biggest difference, there are a few smaller traits that might sway you in the direction of one of the three options.

The FHD model, which comes at the cheapest price, is still a respectable panel despite sitting at a lower 1920x1080 resolution. It has a WLED backlight that hits up to 500 nits brightness, making it easy to work in well-lit spaces, and it has 100% sRGB and 72% NTSC color reproduction. It also gobbles up the least amount of power of the three displays, so if battery life is a high priority, it's likely your best option. Keep in mind that there is no touch function or pen support, which is likely not as big of a deal on a non-convertible device.

If you opt for the dedicated NVIDIA GTX 1650 GPU for some gaming, it will perform much better and offer higher framerates at the lower resolution. If you're not buying the XPS 15 for any specialized work — design, development, or heavy editing — you should find the FHD model checks all the boxes unless you just want to bask in brilliant 4K while going about usual tasks.

The 4K IPS display comes at you with 500 nits brightness, a 3840x2160 resolution, and 100% AdobeRGB color reproduction, making it a strong contender for photo editing and other specialized work. It does use more power than the FHD model, but it also offers touch and pen support. The laptop is going to weigh slightly more than something with an FHD display, but if you prefer 4K, for casual or professional use, it should be well worth it.

Finally, the new OLED 4K display, which is non-touch, hits 400 nits brightness and has 100% DCI-P3 color reproduction, making it also a strong contender for professional work. Contrast is absolutely brilliant at 100000:1, it has a one-milisecond (ms) response time (compared to 35ms for the other displays), though it does use the most power. The OLED display is actually the cheaper 4K option of the two, coming in at about $50 less than the 4K IPS. If you need the absolute best contrast and the DCI-P3 color reproduction for professional work, this is an outstanding choice.


(Image credit: Future)

Performance hardware differs depending on the display you go with, and if you don't need extreme power, the FHD model is going to be quite a bit cheaper due to the hardware on offer.

Yes, you can configure a model with FHD display to have a Core i9 CPU, 32GB of DDR4-2666MHz RAM, NVIDIA GTX 1650 dedicated GPU, and a 2TB M.2 PCIe solid-state drive (SSD), but you can also go as low as an Intel Core i5 CPU, 256GB M.2 PCIe SSD, 8GB of RAM, and integrated Intel UHD Graphics 630. There's also the option of saving some money with the smaller 56Wh battery, though you can still opt for the larger 97Wh battery for some serious life.

4K models are not available with the Intel Core i5 CPU, 8GB of RAM, or integrated Intel UHD Graphics, so if you do prefer to pay less for the weaker hardware, you will have to go with an FHD display. 4K models also seem to only be available with the larger 97Wh battery, which makes sense due to the increased power draw of the high-res display.

Bottom line? If you'd like ultimate performance, you will be able to get it with an FHD or 4K display, though if you prefer to save some money and go with the baseline hardware on offer, you will have to stick with an FHD display.

Design and features

Aside from some weight differences based on the battery and display in use, XPS 15 models hardly differ. You'll get the same ports, the same webcam, the same keyboard and touchpad, and the same optional fingerprint reader built into the power button.

The chassis is still machined from aluminum and has a carbon-fiber palmrest, and audio will be the same thanks to dual 2W speakers.

The FHD XPS 15 is a lot of laptop for most people

If you'd like to save about $250 at checkout and still get high-end performance hardware in your XPS 15, the FHD display model is quite attractive. It can also be had in low-end hardware for even further savings. Though you won't have touch function or pen support, you will get longer battery life and the NVIDIA GTX 1650, if included, will perform much better when gaming in 1080p.

Dell XPS 15 7590 (FHD)

Dell XPS 15 7590 (FHD)
Lower cost, still a great PC

The FHD XPS 15 is available at a cheaper starting price, you can get the same powerful hardware inside (great for gaming), you'll get longer battery life, and it's a bit lighter. As long as you don't plan on a lot of professional design, development, or editing work, it should make a great choice.

From $1,078 at Dell

The 4K XPS 15 is better for power users

Video and photo editors can certainly take advantage of the extras the 4K XPS 15 models, whether IPS or OLED, have to offer, but know that they're also a great all-around laptops for anyone who appreciates a high-res display. Once you go 4K, it's hard to go back to anything else.

Dell XPS 15 (4K)

Dell XPS 15 (4K)
A better choice for professionals and power users

4K XPS 15 models will ultimately cost more than FHD models and will have lesser battery life, but if you need a touch display and pen support, brilliant contrast, or precise color reproduction in AdobeRGB or DCI-P3, going with IPS or OLED at the higher resolution makes sense.

From $1,911 at Dell