Dell XPS 15z review: Dell XPS 15z

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CNET Editors' Rating

4 stars Excellent
  • Overall: 8.0
  • Battery life: 7.0
  • Design: 8.0
  • Features: 9.0
  • Performance: 8.0
  • Service and support: 7.0
Review Date:
Updated on:

The Good The new Dell XPS15z is extremely thin for a midsize laptop, and includes a powerful CPU and midrange GPU, along with a 1080p display and backlit keyboard.

The Bad It's still not thinner than the 15-inch MacBook Pro, and in our high-end $1,500 configuration, we'd expect longer battery life and a better GPU.

The Bottom Line Claiming to be the world's thinnest Windows laptop, the Dell XPS 15z is a sharp-looking package with upgradable high-end features and a reasonable $999 starting price.

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Dell claims its new XPS 15z is the world's thinnest 15-inch laptop, or more precisely that it's the "thinnest 15-inch PC on the planet." The "PC" distinction is important (although to be more accurate we'd have said "Windows laptop"), because at 0.97 inch, it's definitely very thin, but it's still a hair thicker than the 0.95-inch 15-inch MacBook Pro.

So, if the XPS 15z is not going to beat the laptop it's most likely to be compared with, the MacBook Pro, in the category it's pitching itself as a ground-breaker in, system thickness, then what's the point? While it may not make for as compelling ad copy, the XPS 15z is better than its gimmicky thickness claims, and is in fact a well-made, reasonably configurable, upscale multimedia and gaming laptop that includes almost all the high-end extras we'd want, from an (optional) 1080p screen, to a backlit keyboard, to 3D support.

When you add in the solid metal construction, large speakers, and fair (if not inexpensive) price, which ranges from $999 for a more basic version to $1,534 for our tricked-out Intel Core i7 model, there's a lot to like, and the new XPS 15z is a solid alternative to other premium midsize laptops, such as HP's Envy line, Apple's MacBook Pro , or Dell's own XPS 14 .

Price as reviewed / Starting price $1,534 / $999
Processor 2.7GHz Intel Core i7 2620M
Memory 8GB, 1,333MHz DDR3
Hard drive 750GB 7,200rpm
Chipset Mobile Intel HM67
Graphics Nvidia GeForce 525M
Operating System Windows 7 Home Premium (64-bit)
Dimensions (WD) 14.9 x 9.8 inches
Height 0.97 inch
Screen size (diagonal) 15.6 inches
System weight / Weight with AC adapter 5.5/6.6 pounds
Category Midsize

When most people think of Dell, the image that comes to mind is of midpriced plastic laptops, such as the popular Inspiron line, that favor practicality over design. That may be changing, as recent Inspiron laptops have a bit more visual flair, and some even have detachable lids that can be swapped out. The XPS line has always aimed toward a more aesthetically minded customer, and the look and feel of XPS laptops have changed significantly over the years, although the current pre-15z XPS models are surprisingly thick and slab-like.

The new XPS 15z is a fresh start, although it carries over a few touches, such as the inset lid hinges that move the screen slightly closer to the user. Otherwise, this is a sleek metallic box, less than 1 inch thick, and thankfully monochrome, except for some chrome borders around the edge. Yes, it's very thin, but not as thin as the 15-inch MacBook Pro. But honestly, the two are within a hair of each other, so we're willing to call it a tie. Despite the slimness of the body, the XPS 15z still feels sturdy and solid; it's dense, but not too heavy (but it's still heavy enough that you won't want to lug it around every day).

The interior is sparse, with only a backlit keyboard, touch pad, power button, and a pair of large speaker grilles on either side of the keyboard. In many current 15-inch laptops, you'll find a keyboard paired with a separate number pad, but in this case the speakers eat up that space (and then some). Though very usable, the keyboard looks and feels small, and the shallow island-style keys aren't the most comfortable for long-term typing. The keyboard is backlit, which is a huge plus for us, but at some angles, the pale silver keys and the white backlight combined to wash out the actual letters, making it hard to see for the non-touch-typists out there.

The large multitouch touch pad is generously sized, but it's not one of the newer clickpad-style ones we've been seeing lately. Instead, it's a flat pad with two large mouse buttons beneath it. We liked the large surface area, but multitouch gestures, such as two-finger scrolling, were jumpy, which is a problem for just about every Windows laptop.

The 15.6-inch display on our review unit was one of our favorite features. Its native resolution is 1,920x1,080 pixels, which we rarely see outside of 17-inch desktop replacements (and even there, not as often as we'd like). The screen lacks the edge-to-edge glass that many high-end multimedia laptops include, but off-axis viewing angles were excellent. Note that the 15-inch MacBook Pro tops out at only 1,680x1,050 pixels. But also note that this higher-res screen is an upsold option. The base model has only a 1,366x768-pixel display.

With such large speaker grilles eating up so much of the bottom half of the chassis, we'd expect great things from the onboard audio. Of course you still have to keep in mind that these are laptop speakers, and the sheer physics of cramming them into a laptop will keep them from pushing too much air. In use, the speakers were plenty loud, but also thin and lacking low end, at least at the default settings. We popped open the audio settings panel and played with the settings, which included some audio enhancement software from Waves audio (a company known for its music-recording plug-ins) and boosted the bass, giving us a much better music experience without distorting the sound.

Dell XPS 15z Average for category [midsize]
Video HDMI, DisplayPort VGA plus HDMI or DisplayPort
Audio Stereo speakers, headphone/microphone jacks Stereo speakers, headphone/microphone jacks
Data 2 USB 3.0, 1 USB/eSATA, SD card reader 4 USB 2.0, SD card reader, eSATA
Expansion None ExpressCard/54
Networking Ethernet, 802.11n Wi-Fi, Bluetooth Ethernet, 802.11n Wi-Fi, Bluetooth, optional mobile broadband
Optical drive DVD burner DVD burner

The XPS 15z is the first laptop we've seen to go all USB 3.0, or at least have no standalone USB 2.0 ports (there is a combo USB 2.0/eSATA port). With Thunderbolt, Intel's new peripheral technology currently only available from Apple as its main opposition, USB 3.0 seems to have all the momentum to become the next-generation high-speed data port. Also included is Intel's Wireless Display technology, which can beam onscreen video to a TV with the help of a sold-separately receiver box (which usually runs $99), and 3D support via HDMI, for playing 3D content back on a 3D-compatible TV.

The base model of the Dell XPS 15z starts at $999, which is a good deal less than a 15-inch MacBook Pro, and the same as an entry-level HP Envy 14. For that, you get an Intel Core i5 CPU and a lower-res 1,366x768-pixel display. Our review unit added several upgrades, including a faster Core i7 CPU, a version of the same Nvidia GeForce 525M GPU with more video RAM, and the 1080p display, which all adds up to $1,534. A roughly comparable MacBook Pro is about $2,000, and the screen resolution there tops out at 1,650x1,080 pixels.

With the 2.7GHz Intel Core i7-2620M in our XPS 15z, the system performed admirably in our benchmark tests, comparable to the Alienware M14x and the previous version of the XPS 15 , both of which also have current-gen Intel Core i7 CPUs (although in both those cases they were quad-core CPUs). Our most recent 15-inch MacBook Pro, also a quad-core Core i7, was a bit faster on single-app tests and significantly faster on our multitasking test.

While XPS is Dell's high-end multimedia brand, hard-core PC gamers would do better to consider Dell's Alienware brand instead. The included Nvidia 525M GPU is a middle-of-the-road part, and fine for most casual gamers. Running at 1,920x1,080 pixels, we got 50.3 frames per second in Unreal Tournament 3 (73.3fps at 1,440x900 pixels, as seen in our chart below) and 40.5 frames per second in Street Fighter IV, which is good news for those who will be tempted to play games at the full 1080p resolution.

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Where to Buy

Dell XPS 15z (L511z) - 15.6" - Core i7 2640M - Windows 7 Home Premium 64-bit - 8 GB RAM - 750 GB HDD

Part Number: 15Z-2198 Released: May 24, 2011
Pricing is currently unavailable.

Quick Specifications See All

  • Release date May 24, 2011
  • Resolution 1366 x 768 ( HD )
  • Operating System Microsoft Windows 7 Home Premium 64-bit Edition
  • Installed Size 8 GB
  • Color elemental silver aluminum
  • Weight 5.5 lbs
  • Optical Drive DVD±RW
  • Graphics Processor NVIDIA GeForce GT 525M
  • CPU Intel Core i7 (2nd Gen) 2640M / 2.8 GHz