Dell XPS 15z: Sincerely Flattering
by Jarred Walton on September 2, 2011 1:30 AM EST1080p Upgrade FTW
We loved the AU Optronics B156HW1 panel in the XPS 15, and we’ve seen several versions of that panel in the Clevo P150/P151 and W150HR chassis. Out of all of those displays, my favorite by far is the B156HW01 v4 matte panel we tested recently in the W150HR. The XPS 15z brings a new AU Optronics into the picture, however: the B156HW03. The good news is that this is still a decent 1080p LCD, with >500:1 contrast ratio. The bad news is that it’s not as good as most of the B156HW01 panels that we’ve tested (outside of the B156HW01 v5, used in the MSI GT680R). Color accuracy after calibration is particularly bad, and try as I might I couldn’t improve the score. That’s unfortunate, but outside of professional imaging/video work the color accuracy is “good enough” that most users won’t be bothered. Here’s how the new panel compares to other laptops.
While the XPS 15 sports a slightly higher contrast ratio, I’d actually take the higher maximum luminance offered by the 15z panel. Ideally, I’d still like to see >400 nits maximum brightness (you know, like the MacBook Pro offers?), but 300 nits is better than average. Color gamut is only 56% AdobeRGB 1998, which isn’t exceptional but is at least a step up from the 40-50% panels found in cheaper laptops. The Delta E score on the other hand is actually the worst post-calibration result I’ve ever measured. Yikes. Some of the colors in the test are still coming in at >10, which is what we typically see without calibration. I tried 1.8 gamma, 2.2 gamma, and several white points, all to no avail. It’s not the end of the world—most people don’t even have a colorimeter in the first place—but it is somewhat perplexing. Overall, I’d give the panel a solid B, where the B156HW01 v1/v4/v5/v6 rate A-/A/C-/A- respectively (and the Dell panel is another A-, though I’m not sure if it’s v6 or something else). Viewing angles are also good, at least for TN panels:
Heat and Noise Levels
One area where we have to offer a word of caution is in regards to temperatures. We’ve seen at least one laptop throttle CPU speeds when the cores hit 85C, and under a sustained load the XPS 15z CPU runs a toasty 90-95C. Of course, the 85C throttling is on the Acer TimelineX 3830TG, and it’s a BIOS setting rather than a CPU limit—Intel specs all of the Sandy Bridge CPUs for up to 100C operation. Even so, 95C is more than we’d like, and the culprit is easy to find. Simple physics dictates that a thinner chassis makes it harder to get airflow, and stuffing a high performance CPU into such a chassis is a recipe for heat. It happens with the MacBook Pro, and it happens on the XPS 15z. The difference is that Apple uses a fan that can spin faster (and generate more noise), while the 15z runs slightly hotter but doesn’t get quite as loud. At idle, noise from 18” measured 31.6dB on my SPL meter (in a 30dB environment), while load noise—from gaming or running a CPU-intensive task like Cinebench—maxes out the fan at 42.2dB.
The 15z chassis could also benefit from better air intake locations; it sits flat and close to the ground, and if you place it on a carpet or a lap and run a game, you’ll find it gets uncomfortably warm. Prop the back of the laptop up so that the bottom intake can get fresh air and maximum CPU temperatures drop around 8C (though the fan noise remains the same).
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ptuttle - Friday, September 2, 2011 - link
The problem was even when i was using a mouse with it, it would still do the same thing while i was typing. I don't beleive it was from brushing up against the touchpad either. When i would be typing the cursor would move around almost like it was from the vibration. Dell finally admitted that it was a defect in the system so they know what the problem is, they just haven't fixed it.ptuttle - Friday, September 2, 2011 - link
I will admit that performance wise the system was very nice, my main complaint was the touchpad. I mainly used it for business and while on a business trip i would play some games on it while stuck in a hotel room. I played some league of legends on it and got 60fps in medium settings. Rift would play in Medium/High settings at 30-40fps. So performance is nice they just need to fix some of the issues such as the touchpad.tipoo - Friday, September 2, 2011 - link
Its nice that you included the decibel reading for this laptop, I've wanted to know that in a few laptop reviews, thanks. It would be nice to have some reference points though, for instance you said the MBP gets louder at load but how loud is that? Did you test it with the decibel meter? And which is quieter during basic tasks like web browsing?JarredWalton - Friday, September 2, 2011 - link
I don't have dB results from the MBP, at least not for the same environment and equipment. I've heard the MPB15 in person under load, though, and it's pretty darn loud subjectively. At low loads, I think I hear the spinning HDD as much as the fan. 31dB is pretty close to the limit of my SPL meter, as well as my environment.tipoo - Friday, September 2, 2011 - link
What about sound during mainstream tasks like web browsing, youtube, etc? My Dell is two years old and the fan becomes audible just with those tasks. In my experience with modern MBP's, during those things they are barely audible. I'd like to know how a more modern Dell system competes.darwinosx - Friday, September 2, 2011 - link
I don't know why you are so obsessed with comparing this to a MacBook Pro but the fact is many of us want nothing to do with Windows.You also say nothing about service and support and Apple blows Dell away here.
araczynski - Friday, September 2, 2011 - link
but personally i find the speaker grill/mess by itself just completely making the thing look ugly. the rounded keys don't help, nor does the smaller keyboard. but hey, at least they got the body looking decent.bji - Friday, September 2, 2011 - link
I guess you're the editor so you can choose what you want to give an award to, but I didn't see a single thing about this laptop that definitively puts it above any of the other similarly spec'd laptops you have reviewed recently. And the keyboard on this Dell is the most laughable one I have seen on any computer in quite a long time. That alone would send this laptop to the bottom of the pile in my book.Also the styling is butt ugly. There is no creativity or, well, style. Just a generic looking shell and some ugly rectangular speaker grills and fan grills placed in conspicuous locations.
Others in this forum have mentioned poor Dell support; I can't speak to that, but I don't think that a laptop with a history of poor support should get an editor's choice award.
Glossy screen, with only one resolution upgrade option? How is this better than other laptops with a much better choice of screen resolutions + matte options? Answer, it is not.
Can you please explain why you decided to pull out the editor's choice award for this model as opposed to the other laptops you have reviewed lately? It looks very arbitrary, and with so much going against this crappy Dell laptop, really leaves one wondering what is going on.
JarredWalton - Friday, September 2, 2011 - link
Because ultimately, out of the dozens of laptops I've looked at in the past six months, I really enjoyed using the XPS 15z more than a lot of the others. Clevo? No thanks! Toshiba, Acer, MSI, ASUS... they all have areas I'm not happy about. Even if the design is similar to the MBP, that doesn't make it bad. It's a "poor man's MBP", and that's exactly what a lot of people would like to get. Good screen, good battery life, comfortable to use for every day tasks, and fast enough for anything beyond high quality gaming and serious number crunching. This is a laptop I'd like to hold onto and use as my "work laptop" if I could -- and I wouldn't say that about 90% of the laptops I test.bji - Friday, September 2, 2011 - link
Sorry to have to hound on this topic, but can you give some more specifics?The charts show that the Dell is middle-of-the-pack in performance; so that's not an advantage to the Dell. The Dell screen does seem to be good but the Clevo screen you reviewed recently was as good. In the article you lamented the thinness and flexiness of some of the enclosure and that would seem to be contrary to the position that the laptop is more pleasurable to use than others.
Honestly, reading between the lines it really feels like you really just like the Macbook styling and design and are giving the Dell an editor's choice because it's "kind of like a Macbook".
I believe you when you say that you like using the laptop more than 90% of others you have tested, and having myself bought a Clevo recently purely because of the specs and price, and then selling it at a loss two months later because it was just so unpleasant to use, I absolutely understand the value of that intangible quality of a laptop that makes it pleasurable to use. No matter how great a laptop performs or how good its specs are, if it's unenjoyable to use, it will sit on the shelf with other options taking preference wherever possible (I found myself constantly pulling out my 6 year old Panasonic Toughbook Y2 because I just couldn't stand to use the Clevo, and that convinced me that I needed to get rid of that Clevo ASAP, which I did).
It feels like you've given the Dell an editor's choice based on personal preference, not a more objective conclusion based on the merits of the laptop itself. If someone was not enamored with Macbook design above all else, would they still prefer the Dell over another offering? Is there something about the Dell that makes it better than other PC laptops? If you had never seen a Macbook before and you were comparing this Dell to other PC laptops, would you still conclude that the Dell is better?
I have nothing against Apple, or against PC laptops either; I'm not saying these things because I think that there is something inherently inferior (or superior) about a laptop that takes its styling cues from Apple. I just wonder what exactly there is about this Dell that earns it an editor's choice when I can't see anything in pictures or in the review that makes it obviously better than other PC laptops.
BTW, the Samsung 7 series posted about recently really looks like a *much* better effort at imitating the Apple look and feel. I hope you get an opportunity to review one of those soon.