Power Requirements

Power requirements with a laptop plugged in don't necessarily reflect power requirements when a laptop is on battery power. In particular, high-end GPUs run at lower maximum clock speeds when using the battery. Keep this in mind when looking at the following numbers. We test under idle conditions, with a 100% load placed on the CPU via Folding@Home SMP, and finally at maximum load by running FAH SMP at the same time as we loop 3DMark06 (at the native LCD resolution).

System Power Requirements

System Power Requirements

System Power Requirements

Our power measurements are with the LCD at maximum brightness, which isn't necessarily a fair way of doing things as some LCDs are much brighter than others. Unfortunately, we don't have most of the laptops around to retest. You can see that the Dell Studio XPS 16 uses 9W more power running at maximum brightness, which represents an increase in power draw of 33%. We verified that 9W figure on the other tests, but we didn't include those results in the charts. We don't know if the RGB LEDs inherently use more power than regular laptop backlights, but obviously increasing the backlight intensity requires more power. Luckily, you can often get by running the XPS 16 LCD at around 30-40% brightness (100-130 nits).

Noise Levels

We also ran noise testing using an SPL meter at 24" under the same conditions as our power tests.

System Noise Levels

System Noise Levels

System Noise Levels

The Studio XPS 16 does reasonably well in terms of noise levels, almost reaching the noise floor of our testing environment (around 28 dB). Once you start to put a load on the system, it does get a bit louder, and extended gaming will usually reach maximum noise levels after a few minutes. The system also takes a while to quiet down after you remove the load, which is likely influenced by the top panel partially blocking the exhaust port.

Temperatures

We didn't create any charts, but we wanted to give a quick rundown of the temperatures you might expect from the Studio XPS 16. We placed a maximum load on the system for 30 minutes and then measured temperatures, so these results are something of a worst-case scenario. Then again, the testing environment was only 67°F, so in warmer conditions it might not be as difficult to make things toasty. We have heard some complaints from users about the XPS 16 getting excessively hot; we wouldn't go that far, but it definitely doesn't run cool to the touch all the time.

We measured temperatures of ~45°C at the exhaust, which isn't too bad. However, temperatures on the bottom of the laptop range from 35° to the 45° as well, with large portions of the bottom measuring above 40°C. The keyboard and palm rest weren't quite as hot, ranging from 30° to 40°C with most of the keyboard staying under 35°. Just to put things in perspective, those temperatures are higher than what we measured on the Toshiba X305-Q725, a result of the smaller chassis with fewer fans.

Battery Life Display Quality
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  • JarredWalton - Sunday, April 5, 2009 - link

    I don't have updated scores with new drivers, but you can see the http://www.anandtech.com/mobile/showdoc.aspx?i=324...">original XPS M1730 3DMark scores - including scores with the CPU overclocked. I didn't have 3DMark Vantage at the time, so those scores are also missing. Basically, the scores are relatively close to the Clevo D901C laptop.
  • Hrel - Thursday, April 2, 2009 - link

    I have a Dell Studio 15 Series laptop T8100 320GB HDD X3100GMA... it's okay for the most part; wish it had some kind of useable graphics, but I couldn't afford the upgrade. Anyway, the slot loading DVD drive is a pain in the but! It quirks out sometimes when you hit eject and just keeps trying to eject the disc even if it's already out until you restart the whole thing; one time even after doing that it just wouldn't take discs for like 5 days at all. Then randomly it started working again. Not to mention if it ever DOES fail I'm gonna have to pay more for the replacement than I would if it was a standard cd tray drive; I REALLY don't like that choice of DVD drives.

    Also, on a 16" 16:9 Chassis they really should include a keyboard that has a dedicated num pad. Asus includes a full numpad on their 15.6" 16:9 chassis. On that note though, the keyboard on my Studio 15 is well laid out and pleasant to type on.
  • QChronoD - Thursday, April 2, 2009 - link

    Where the measurements for the screen done with the out-of-the-box settings, or was it calibrated first?
  • JarredWalton - Thursday, April 2, 2009 - link

    Calibrated. As best as I can tell, there's no truly reliable way of testing the color accuracy without calibrating. I tried to do it in the past, but I became suspect of my results. Besides, if you need accurate colors there's generally no way around hardware calibration utilities.
  • DigitalFreak - Thursday, April 2, 2009 - link

    Windows Vista Hope Premium? :0)
  • JarredWalton - Thursday, April 2, 2009 - link

    Truth in advertising? :-D
  • Lingyis - Monday, May 3, 2010 - link

    bad news--i was just gonna get one of these babies and Dell told me Studio XPS 16 no longer comes with an RGB LED option.

    i want a good laptop display--i'm deciding between the Studio XPS with a regular WLED vs the Precision M4500. The precision M6500 appears to have RGB LED but it's 17 inches which is too big.

    so what to go for--the RGBLED-less Studio XPS or the Precision M4500?
  • brock5 - Tuesday, September 28, 2010 - link

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  • brock56 - Saturday, November 13, 2010 - link

    Eyes are the most sensitive part of our body and all <a href="http://rjneyeinstitute.org"> Eye disease </a> are equally capable of harming the eyes, as they are very delicate

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