Dell Studio XPS 16: the Eyes Have It
by Jarred Walton on April 2, 2009 6:00 PM EST- Posted in
- Laptops
Battery Life
For battery life testing, we run all laptops at around 100 nits brightness. If you choose to run your LCD at maximum brightness, you may lose anywhere from 10 to 60 minutes depending on the laptop and the display. In the case of the Studio XPS 16, maximum brightness is 280 nits and uses 9W more power, so the impact on battery life is quite significant (see the idle chart below for reference).
We run several different battery life scenarios: Internet surfing (load several webpages using the wireless adapter every minute until the battery dies), DVD playback, x264 playback, and idle (maximum) battery life. For x264 playback, we copy a 720p file to the hard drive and loop playback using Windows Media Player Classic Home Cinema; we will include scores from other laptops, but it's worth noting that we did not have GPU accelerated x264 decoding enabled in previous laptop tests. We have battery life results for Blu-ray playback on laptops that ship to us with a Blu-ray drive. We've also included web surfing results (and DVD for the MacBook Pro) for the latest Apple MacBooks as a point of reference.
Battery life is nothing special, particularly when compared with similarly equipped notebooks. Purchasing the extended capacity battery does allow you to reach over three hours of battery life, but the same can be said of other notebooks. You can also see what happens if you turn up the display brightness. At maximum brightness sitting at the desktop, you only get 108 minutes of battery life. Perhaps that's just the price we have to pay for the beautiful LCD.
As we've mentioned in the past, Apple's MacBook and MacBook Pro provide an almost untouchable amount of battery life. To give you a true apples-to-Apples comparison, we've calculated the amount of battery life you get per Whr (Watt Hour) of battery capacity:
We can only hope that Windows 7 will help improve the battery life situation and level the playing field. However, we also suspect that the hardware manufacturers could be doing a lot more to improve battery life on their laptops. The closest we have come to matching the Minutes/Whr score of the MacBooks was with an ASUS N10JC netbook, which isn't even on the same continent in terms of performance. Apple is getting over six minutes per Whr, and most similarly equipped Vista notebooks are luck to come close to 3 min/Whr. Note that testing a MacBook with Vista using Boot Camp also cut the Apple battery life roughly in half.
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JarredWalton - Friday, April 3, 2009 - link
All 3DMark scores are at the standard 3DMark resolution, so I connect an external LCD where necessary (i.e. laptops with 1280x800 LCDs can't run 1280x1024 in 3DMark06 and Vantage). So the scores are definitely apples-to-apples in that department.I don't know what WoW is really like in terms of GPU needs, but the HD 3670 should be faster than the 8600M GT by a fair margin. If you need more power, though, Gateway's P-7808u FX should do the trick (review in progress), and MSI's GT627 is even more powerful in the GPU department (9800M GT). The only caveat is that neither LCD is anywhere near as good as the Studio XPS 16, and I really dislike the MSI keyboard (it's flimsy).
jiggpig - Thursday, April 2, 2009 - link
You should add the lenovo x200 or x300 to the battery life charts, I bet they could challenge the macbooks in battery life/battery size charts.JarredWalton - Thursday, April 2, 2009 - link
I would if Lenovo would send me a laptop to test. I've heard good things from some people, and I would love to verify the results. Without doing the testing myself, however, I can't come to any firm conclusion. (What brightness level do they test at? What's the test like? That sort of stuff can make a difference.)erple2 - Tuesday, April 7, 2009 - link
Also, I see that you've posted the minutes/WHr results for the Apple notebooks. However, what are the "at the wall" measurements for power consumption?Is it that OSX is that much stronger optimized for low power usage? I wonder if there would be any difference running Linux vs. Vista vs. OSX on the same laptop (granted, you'd have to run them all on a Macbook I suppose to get that result) at least for power consumption, and wall outlet consumption.
Hrel - Thursday, April 2, 2009 - link
Which GPU does it have in it? Sometimes you list the HD4670 and sometimes you say HD4650???Hrel - Thursday, April 2, 2009 - link
I meant HD3670 and HD3650... ah typing mistakes that are made significant by barely different product naming schemes.JarredWalton - Thursday, April 2, 2009 - link
Sorry about that... it's an HD 3670, but somehow in the process of writing I started saying 3650. The two chips are the same, other than clock speeds, but I'm not sure on the clocks for the 3650. Anyway, the incorrect part numbers have been corrected. Thanks!Hrel - Thursday, April 2, 2009 - link
"This will allow us to provide an apples-to-apples comparison with other laptops while also showing the performance range you can expect by lowering or increasing the resolution."YAY anandtech! Good job, now if only you would do this on every single review that has anything to with GPU's. Oh, I'm not done with the article yet, but if there aren't 3D Mark scores, there should be.
LoneWolf15 - Friday, April 3, 2009 - link
Yes, because 3DMark scores are SO indicative of real-world performance.[/sarcasm]
cheetah2k - Saturday, April 4, 2009 - link
It would be nice to see 3Dmark06 scores across the whole Dell range in these reviews, including the hefty XPS1730.For those wanting to know, an XPS1730 with 2 x 8800GTX in Sli gets 11,490 marks in 1280x1024 with a T9300 CPU @ 2.5Ghz