Abnormally Low G3D Mark Scores - CPU Bottleneck?

Hey there. So I downloaded Performance Test from PassMark to determine my G3D Mark score. I ran the 3D graphics test and my 3D Graphics Mark results were 1550, way below what I was expecting by looking at this chart: http://www.videocardbenchmark.net/gpu.php?gpu=Radeon+HD+5870.

The chart says the Radeon HD 5870 averaged a score of 2751. Now, I am a complete noob, but either I'm not understanding the test correctly, or something about my build is seriously bottlenecking my GPU. But, when I run the G3D test, Real Temp says my CPU load is only at 35%.

My Build:
Radeon HD 5870 - 1GB
http://www.newegg.com/Product/Product.aspx?Item=N82E16814102872
Intel Core 2 Quad Q6700 2.66GHz (OC@3.20GHz)
http://www.newegg.com/Product/Product.aspx?Item=N82E16819115027
G.Skill 4GB Ram
http://www.newegg.com/Product/Product.aspx?Item=N82E16820231122
650W PSU
http://www.newegg.com/Product/Product.aspx?Item=N82E16817139005
Motherboard GA-P35-DS3L
http://www.newegg.com/Product/Product.aspx?Item=N82E16813128059
Hard Drive
http://www.newegg.com/Product/Product.aspx?Item=N82E16822136218

Any help would be greatly appreciated!
9 answers Last reply
More about abnormally mark scores bottleneck
  1. What do you get in 3DMark11 performance?
  2. Results on next post...
  3. 3D Marks says my score is normal, so I guess PassMark or the G3D marks charts were just off.

    And I guess my CPU is not bottlenecking b/c my 3DMarks score is the same @3.2GHz and 3.0GHz.

    3DMarks Score: P4238 http://3dmark.com/3dm11/3376293 - CPU Overclocked @3.2GHz
    3DMarks Score: P4223 http://3dmark.com/3dm11/3376376;jsessionid=1rucln1do8pfd123rgo5itx733 - CPU Overclocked @3.0GHz

    Comparisons: http://3dmark.com/compare/3dm11/3376293/3dm11/3376376

    Can anyone confirm? or else I'll always be second guessing myself, lol.
  4. I really don't get it though. This one scored P5452 3DMarks with the same card, but his CPU is 5.0GHz. Why don't I get higher scores when I raise my CPU overclock?

    http://3dmark.com/3dm11/1684418
  5. Well he has a much much better CPU, and you didn't increase your CPU by enough to make a real difference.
  6. Ah ok, lol. Thanks, I think I get it now.
    I did another test at stock speed on my CPU (2.66GHz) and scored P4120 3DMarks.

    http://3dmark.com/3dm11/3376475;jsessionid=uysnblgkebmz1c5izpben1liy

    So 3.20Ghz down to 2.66GHz = 118 drop in score. P4238 vs P4120, still seems kinda low.
  7. Good stuff, thanks again.
    I got up to P4331 3DMarks by increasing the GPU OC a bit more.
    http://3dmark.com/3dm11/3376721;jsessionid=d6po6j9okftd6sizn2167ii4

    I guess this will have to do for Diablo 3 and Guild Wars 2 :)
  8. Sweet, got up to P4462 with a bit more OCing on the GPU.
    http://3dmark.com/3dm11/3378136;jsessionid=pjz8n0irw09to599ofbjl643

    GPU OC is turning out to be way more effective than CPU OC.
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