The Test

For this comparison we were provided with two notebooks - in the NVIDIA corner we have the Sager NP9860, using a 3.2GHz Prescott (P4-E), 1GB of RAM and a GeForce 6800 Go clocked at 300/300 with a 256-bit memory bus.


Our GeForce 6800 Go testbed

In ATI's corner we have an unnamed M28 launch partner (we can't mention who until M28 is launched in about 2 weeks) using a 3.4GHz Prescott (P4-E), 1GB of RAM and a M28 clocked at 400/400 with a 256-bit memory bus.

The systems are configured as closely as possible, with the CPU clock speed being a slight advantage in ATI's favor. But given the fact that most of our benchmarks will be GPU limited and the CPU clock speed advantage is around 6%, don't expect it to tilt things too far in ATI's favor.

Reducing GPU Power: A Quick Lesson in Clock Gating Doom 3 Performance
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  • onix - Tuesday, November 23, 2004 - link

    "I'm very disapointed with this article for a few reasons:

    1) There is no point of reference. Where are the benchmarks for a radeon 9700 Mobility or Radeon 9800 Mobility? We have no idea how much faster these things are than existing mobility parts "

    Agreed. I am about to buy a ThinkPad T42p with a 128MB ATI Mobility FireFL T2, and don't know what I'll be passing up.

    Reply
  • Neekotin - Friday, November 12, 2004 - link

    who plays in a laptop anyway? Reply
  • Shadowmage - Wednesday, November 10, 2004 - link

    The Mobility X600 uses 1W idle and 9-10W on max power. I would like to know how the Mobility M28 and nVidia 6800 go compare in wattage and heat. Remember that the X800 whoops the 6800 in both heat and power.
    Reply
  • stephenbrooks - Tuesday, November 09, 2004 - link

    Nice review, though it would have been nice to see the difference in power consumption (and hence battery life) of the desktop vs. notebook GPUs in the previous and current generations, so we could see how much good the 'clock gating' that was nicely explained at the beginning of the article does. Probably a hard thing to do with limited time though. Reply
  • Terr1 - Tuesday, November 09, 2004 - link

    Hey im in the proccess of buying a new laptop, which im using with my studies and of cause gaming (since its going to be faster than my stationary computer. I dont want a normal Pentium 4 M, because of the low battery usage. My choice is 100% on centrino (dothan CPU), so my question is, do you think this come to the centrino chipsets as well? Since it prob. require a new chipset that suppports PCI-Express, as far as I know the next chipset will first come in about 3-6 months. I need mine around january, and pref. faster.. So is it stupid to buy ATI 9700PRO 128mb card now? Reply
  • Woodchuck2000 - Tuesday, November 09, 2004 - link

    It's hardly surprising that the 6800 loses in the majority of benches given that it's clocked 100/100 lower than the M28 and both are 12 pipe parts.... It would be interesting to compare the solutions at equal clock speeds.

    Is 400/400 the likely shipping speed of the M28 and if so why is ATi's DDR3 clocked 200MHz slower than nVidia's high end solution?

    Reply
  • Live - Tuesday, November 09, 2004 - link

    You really should include the minimum FPS recorded in your benchmarks. Average FPS doesn't say it all. Other then that it was a good first look at these new GPUs. Reply
  • Camylarde - Monday, November 08, 2004 - link

    # 16 thats nod needed. WIll lack comparison to desktop GPU's

    Thanks Anand for your review, yet, I agree with all those negative comments about quality of the review. I am considering you as one of the best reviewers on the net and your articles never disappointed me. This one is far from being best and as you wrote, you know that. Rather wait one more day for a full work than "launch not available product".

    Cheers, Petr
    Reply
  • klah - Monday, November 08, 2004 - link

    " I'm hoping to have a shipping version of M28 by the end of this month for more thorough tests."

    How about some benches using the native resolutions of the displays(1690x1050).

    Reply
  • skunkbuster - Monday, November 08, 2004 - link

    i think they named it that way to reflect that the mobility 9800 performed on par to a regular desktop radeon 9800.
    i think that if it performed closer to an x800, then maybe they would have called it that instead...
    Reply

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