Battery Life, Power Use, Temperatures, and Noise

For battery life testing, we ran our standard three in-house tests. The first consists of surfing the internet until the battery runs down. We set Internet Explorer to load three web pages (including AnandTech.com), pause for 60 seconds, exit, and then reload those pages. The second test simply plays a DVD until the battery runs dead. For the third test, we loop the four gaming tests in 3DMark06. In all cases, we set the power profile to "Balanced" and set the display brightness at maximum brightness. The GPU on the P-6831 still consumes quite a bit of power, so turning down the backlight for the LCD won't help too much. However, you might be able to improve battery life by 20-25 minutes with a bit of effort (i.e. use the max power saving profile and turn down LCD brightness).

Related to battery life are the power requirements. We measure with the system plugged in, so some of the power saving features are not active. The numbers below will still give you an idea of how much relative power various tasks require.


Battery
Life

Battery
Life

Battery
Life - Gaming

System
Power Requirements

System
Power Requirements

System
Power Requirements

The Gateway system comes with an 86 Whr battery, in comparison to 95 Whr batteries on several of the other 17" systems and 65 Whr on the AVADirect and WidowPC laptops. The P-6831 places near the top of the battery life benchmarks, at least when compared to other gaming notebooks. Reducing the display brightness and performance mode should easily allow over two hours of battery life for web surfing. DVD playback is just over an hour and a half, so you could watch some shorter movies on a single charge. The gaming battery life falls behind several of the other notebooks, but then it appears that the GPU clock speeds don't throttle as far on the P-6831 FX. That's likely because the CPU isn't using a lot of power, relatively speaking.

Those worried about extremely high temperatures should be pleasantly surprised. While we won't go so far as to call the P-6831 a cool-running laptop, it doesn't get all that hot. After looping 3DMark06 for over an hour, we measured the following temperatures. The exhaust on the back left of the laptop was by far the hottest area, measuring 46-48C. While that seems high, all of that heat comes from the GPU, and the bottom of the laptop is nowhere near that hot. The bottom ranges in temperature from 26C to 36C, with most of the surface around 31C-33C; only a few hotpoints (right near the center under the Gateway label, presumably where the actual GPU sits) reach 35-36C. The palm rest stays at a cool 26-30C, and the keyboard is mostly in the 30-32C range, with a few areas (around RTY/FGH - again just above the GPU core) reaching up to 35C. Note that all of the testing was conducted in a ~21C environment; temperatures would naturally be higher if the ambient temperature increases.

One last item we would like to comment on is the noise levels of this notebook. Given the slightly less powerful GPU and the slower CPU, we figured the noise levels would be lower than other gaming notebooks. Compared to the Clevo M570RU, that's certainly the case; the maximum noise level of 42dB is about the same as the minimum noise level (41dB) of the Clevo. The GPU and CPU still require decent airflow, though, so even at idle noise levels never reach the point where we would call this notebook "silent". It fluctuates between 34dB and 36dB at idle, with the difference coming from the CPU fan spinning faster for short periods of time. At 100% CPU load, the noise stays at a constant 36dB. As soon as you load up any game, noise increases to 40dB initially and then usually reaches the maximum 42dB after a few minutes. Again, we have to give Dell credit, as even with SLI their XPS M1730 is nearly silent when idle (31dB).

Other Application Performance Closing Thoughts
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  • deshiboy - Monday, January 25, 2010 - link

    I use the FX for school and my Sager 8690 for gaming. Sager looks plain but preforms likes a desktop, I wish they did a better job on the battery life. But thats where my FX comes in to save the day.
  • atlmann10 - Tuesday, August 5, 2008 - link

    Gateways doing the same thing with the next on this line except its centrino 2/core2duo with ddr3 and a 9800 GTI for 1449 frickin awesome these will be hard to come by after the last one (the one in this review)
  • atlmann10 - Tuesday, August 5, 2008 - link

    oh with a 7200 rpm Hard drive and wireless N oh did I mention ddr3 can you say lower power better performance
  • xeryx - Thursday, June 5, 2008 - link

    Obviously Gateway and Best Buy has decided to blow away the competition with this notebook!!

    I have been laptop Gaming for years, because my job keeps me on the road alot. It is a great way to pass the time away from family, and stay out of trouble.

    I currently own a Sager 17" laptop with the 7800m 2gb, and a 80gb hd. When I bought it new it was $2200.

    As a comparison to the Gateway, (Best Buy version)get an almost equivalent system from Sager, your looking at $2200. In all fairness, that is the 8800gtx ($395) and a 2.1 ghz (t8100) with no option of a second HD, let alone Raid 0. It also has the fingerprint scanner.

    To me the 2nd hd (even though 5400) is very important, let alone the potential for raid 0. I find that laptop HD performance is not very good overall, and can cause delays when gaming.

    Screen resolution, I have been gaming at 1680x1050 and in all honesty, it is too high for a 17" screen. Especially in the desktop. 1920 is way too high for a 17" screen, unless you have SLI8800m's. That is a completely different bracket.

    In my opinion they did an excellent job in trading off, and adding in some very key features. SO you basically save $1000.00 for a little bit less performance than a 8800 GTX machine. The key here though is at @ $1200, not $2000 you get a machine that will be able to handle just about anything you can through at it (Crysis doesn't count).

    If you are thinking about getting a laptop, for gaming...this is the absolute best smoking deal you can find!!
  • Rekonn - Friday, April 11, 2008 - link

    Anybody have an update on when the P-6860fx will be out?
  • Rekonn - Friday, April 11, 2008 - link

    Found answer today on Yahoo finance:

    The Gateway P-6860FX comes with Windows Vista Home Premium 64-bit Edition with SP1 and will be available beginning this weekend at Best Buy with a manufacturer’s suggested retail price of $1,349.99. It comes with NVIDIA® GeForce™ 8800M GTS 512MB GDDR3, an Intel Core 2 Duo T5450 processor, 3072MB of DDR2 SDRAM and a 250GB(1) 5400RPM SATA hard drive. This system also comes with a multi-format dual layer DVD-R/RW/DVD-RAM drive with LabelFlash technology(2) for burning images and text onto a DVD or CD.
  • teknomedic - Tuesday, April 15, 2008 - link

    I've returned both my P-6831s because of the P-6860FX... the above post is a bit wrong about the specs... here's what I know:

    Gateway P-6860 FX
    Basically the same as the P-6831 with a few nice upgrades:

    Proc = T5550 @ 1.83-1.86Ghz (up from T5450 @ 1.6Ghz)
    RAM = 4GB (up from 3GB)
    HDD = 320GB SATA (5400rpm) (up from 250GB)
    OS = Vista Home Premium SP1 (64bit) (up/down from 32bit?)
    MSRP Price = $1,349.99 (same price before BB $100 off online)

    All other hardware appears to be the same... there's a small chance that the CD-Burner supports one more Dual Layer format, but that could simply be because of Best Buy not listing specs correctly.



    Side note... has anyone had issues with the right speaker having bad distortions on certain sounds or speach from games... both my P6831s had this issue (another reason I returned them).


    TK.



    HEY, Anandtech.com.... any chance we can get a refreshed review including the P-6860... it would be interesting to see if the extra boost of Proc and RAM with 64bit OS helps or hurts the laptop.

    ***please, please, please, please, please***

  • xeryx - Thursday, June 5, 2008 - link

    You did forget a couple of other differences.

    BTW Get this Laptop at Best Buy!! The upgrades are well worth it as compared to the Gateway website!!!

    1) Comes with the Bluetooth the Gateway 172s does not
    2) The wireless adapter is the upgraded to support b/g/n
    3) 64bit operating system vs 32bit

    Thank goodness you can Raid 0 this puppy later, I was worried! The specs for the 172s says no raid support??
  • kyp275 - Monday, April 21, 2008 - link

    aye, a refresh on the review for the 6860 would be great :)
  • Rekonn - Tuesday, April 22, 2008 - link

    Yes, please update the review! I'm planning to buy a laptop soon and would love to see how the faster Proc, more RAM, and 64bit OS affect results.

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