Head to Head: ATI Radeon X800 XT vs. NVIDIA GeForce 6800 Ultra

For our first head to head comparison we have ATI's top of the line X800 XT against NVIDIA's flagship GeForce 6800 Ultra.

At lower resolutions the performance is close in our first demo, but as we crank up the resolution and turn on AA, the X800 XT pulls ahead:

Half Life 2 AT_canals_08.dem
 
ATI Radeon X800 XT
NVIDIA GeForce 6800 Ultra
Performance Advantage
1024 x 768
142.4
136
4.7%
1280 x 1024
125.6
119.3
5.3%
1600 x 1200
108.2
98.6
9.7%
1024 x 768 - 4X AA
126.5
124.4
1.7%
1280 x 1024 - 4X AA
103.2
92.8
11.2%
1600 x 1200 - 4X AA
81
68.7
17.9%
Winner
-
-
X800 XT

We see the same story in our second benchmark:

Half Life 2 AT_coast_05.dem
 
ATI Radeon X800 XT
NVIDIA GeForce 6800 Ultra
Performance Advantage
1024 x 768
134.2
132.6
1.2%
1280 x 1024
130.4
126.4
3.2%
1600 x 1200
125.7
118.7
5.9%
1024 x 768 - 4X AA
130.1
132.6
1.9%
1280 x 1024 - 4X AA
126.7
119.1
6.4%
1600 x 1200 - 4X AA
114.7
95.3
20.4%
Winner
-
-
X800 XT

...and our third:

Half Life 2 AT_coast_12.dem
 
ATI Radeon X800 XT
NVIDIA GeForce 6800 Ultra
Performance Advantage
1024 x 768
128.8
125
3.0%
1280 x 1024
120.5
114.3
5.4%
1600 x 1200
105.7
100
5.7%
1024 x 768 - 4X AA
121.7
116.7
4.3%
1280 x 1024 - 4X AA
105.7
97.7
8.2%
1600 x 1200 - 4X AA
86.6
73.7
17.5%
Winner
-
-
X800 XT

The X800 XT continues to maintain a significant lead at higher resolutions with AA enaabled:

Half Life 2 AT_prison_05.dem
 
ATI Radeon X800 XT
NVIDIA GeForce 6800 Ultra
Performance Advantage
1024 x 768
150.1
148.4
1.1%
1280 x 1024
136.8
129.6
5.6%
1600 x 1200
109.3
97.2
12.4%
1024 x 768 - 4X AA
143.5
132.1
8.6%
1280 x 1024 - 4X AA
111.5
95.1
17.2%
1600 x 1200 - 4X AA
84.9
69.9
21.5%
Winner
-
-
X800 XT

In our final test the X800 XT only really separates itself from the 6800 Ultra at 1280 x 1024 and 1600 x 1200 with AA enabled.

Half Life 2 AT_c17_12.dem
 
ATI Radeon X800 XT
NVIDIA GeForce 6800 Ultra
Performance Advantage
1024 x 768
88.1
84.6
4.1%
1280 x 1024
86.3
84
2.7%
1600 x 1200
84.1
80.1
5.0%
1024 x 768 - 4X AA
87.2
84.3
3.4%
1280 x 1024 - 4X AA
84.3
77.4
8.9%
1600 x 1200 - 4X AA
80.3
65.6
22.4%
Winner
-
-
X800 XT

What the X800 XT holds over the 6800 Ultra is a 10 - 20% performance advantage in high resolution AA performance, but at lower resolutions and with AA disabled the performance is very similar between the two.

Summary
 
Average Performance Advantage (X800 XT over 6800 Ultra)
1024 x 768
2.8%
1280 x 1024
4.4%
1600 x 1200
7.8%
1024 x 768 - 4X AA
4.0%
1280 x 1024 - 4X AA
10.4%
1600 x 1200 - 4X AA
19.9%
Turning on Anisotropic Filtering Head to Head: ATI Radeon X800 Pro vs. NVIDIA GeForce 6800GT
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  • Anand Lal Shimpi - Wednesday, November 17, 2004 - link

    Thanks for all of the comments guys. Just so you know, I started on Part 2 the minute the first article was done. I'm hoping to be done with testing by sometime tomorrow and then I've just got to write the article. Here's a list of the new cards being tested:

    9600XT, 9550, 9700, X300, GF 6200, GF 5900XT, GF4 Ti 4600, GF4 MX440

    I'm doing both DX9 and DX8 comparisons, including image quality.

    After Part 2 I think I'll go ahead and do the CPU comparison, although I've been thinking about doing a more investigative type of article into Half Life 2 performance in trying to figure out where its performance limitations exist, so things may get shuffled around a bit.

    We used the PCI Express 6600GT for our tests, but the AGP version should perform quite similarly.

    The one issue I'm struggling with right now is the fact that the X700 XT is still not available in retail, while the X700 Pro (256MB) is. If I have the time I may go back and run some X700 Pro numbers to make this a more realistic present-day comparison.

    Any other requests?

    Take care,
    Anand
  • Cybercat - Wednesday, November 17, 2004 - link

    You guys made my day comparing the X700XT, 6800, and 6600GT together. One question though (and I apologize if this was mentioned in the article and I missed it), did you guys use the PCIe or AGP version of the 6600GT?
  • Houdani - Wednesday, November 17, 2004 - link

    18: Many users rely on hardware review sites to get a feel for what technology is worth upgrading and when.

    Most of us have financial contraints which preclude us from upgrading to the best hardware, therefore we are more interested in knowing how the mainstream hardware performs.

    You are correct that it would not be an efficient use of resources to have AT repeat the tests on hardware that is two or three generations old ... but sampling the previous generation seems appropriate. Fortunately, that's where part 2 will come in handy.

    I expect that part 2 will be sufficient in showing whether or not the previous generation's hardware will be a bottleneck. The results will be invaluable for helping me establish my minimum level of satisfaction for today's applications.
  • stelleg151 - Wednesday, November 17, 2004 - link

    forget what i said in 34.....
  • pio!pio! - Wednesday, November 17, 2004 - link

    So how do you softmod a 6800NU to a 6800GT???
    or unlock the extra stuff....
  • stelleg151 - Wednesday, November 17, 2004 - link

    What drivers were being used here, 4.12 + 67.02??
  • Akira1224 - Wednesday, November 17, 2004 - link

    Jedi

    lol I should have seen that one coming!
  • nastyemu25 - Wednesday, November 17, 2004 - link

    i bought a 9600XT because it came boxed with a free coupon for HL2. and now i can't even see how it matches up :(
  • coldpower27 - Wednesday, November 17, 2004 - link

    These benchmarks are more in line with what I was predicting, the x800 Pro should be equal to 6800 GT due to similar Pixel Shader fillrate while the X800 XT should have an advantage at higher resolutions due to it's having a higher fillrate being clocked higher.

    Unlike DriverATIheaven:P.

    This is great I am happy knowing Nvidia's current generation of hardware is very competitive in performance in all aspects when at equal amounts of fillrate.
  • Da3dalus - Wednesday, November 17, 2004 - link

    In the 67.02 Forceware driver there's a new option called "Negative LOD bias", if I understand what I've read correctly it's supposed to reduce shimmering.

    What was that option set to in the tests? And how did it affect performance, image quality and shimmering?

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