Follow-up to NVIDIA’s shady trick on 9600GT

Page 1: Introduction

Page 2: No more linkBoost in nForce mobos

Page 3: Testbed and remarks

Page 4: 9600GT runs better on NVIDIA mobo?

Page 5: 9600GT’s GPU and PCIe clock relations

Page 6: Other cards also have this issue?

Page 7: Conclusion

Final thought: What is affect by the PCIe clock?

Will nForce mobo automatically starts LinkBoost?

No, because nFoce board did not have this feature any more.

9600GT runs better when using it with nForce?

No. It is only a 0.3% increase in Multi-texture test, which can be omitted. If compare it with 3Dmark06 total score that Intel P35 won’t have any difference with 780i.

9600 GT GPU clock increase 1:1 when we increase PCIe clock?

No.PCIe clock change not only affects GPU clocks. First they are not 1:1, second the scale pattern are not the same.

Other cards also have this issue?

For now, no. But in the future we will encounter more 9 series card which have this kind of issue.

Now here is a new question which we can not answer: What PCIe clock affects?

It is clear that the GPU clock and PCIe clock patterns are not the same, so PCIe clock not only affect the GPU clock. But we can not sure which part is the key. Maybe only NVIDIA can answer this question.

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13 Responses to “Follow-up to NVIDIA’s shady trick on 9600GT”

  1. Guilit Says:

    thanks,Original linkboost has been cancelled, all speculations are unfounded.

  2. [ExpRev] Follow-up to NVIDIA’s shady trick on 9600GT - Overclock.net - Overclocking.net Says:

    [...] GPU clock rise when PCIe clock frequency rise? Other GeForce also have this issue? Source __________________ Please ignor my spelling and grama! FAQ:s I have a slow computer can i run [...]

  3. MAC Says:

    nvidia is the best, but Ati is more better n yet cheaper than nvidia, just my opinion

  4. Gorkem Says:

    linkboost is not with us anymore but if you manually increase pcie clock, then there is hidden 9600gt boost :) so people should know about it. imagine oc version of 9600gt and you will increase pcie clock %10. What will be result? maybe GPU will start crashing. thanks for article.

  5. Bob Says:

    We already know about Asus. What we want to know about is XFX and Evga. The EVGA and XFX boards are rebadged boards while Asus is not.

  6. TC Says:

    Another site talked about this before you guys posted it here. And he did a much more detailed test to see that it IS overclocking and it IS cheating on the tests. Because your comparing an overclocked card to non overclocked cards. It can’t get much more unfair than that. Why you decided to defend Nvidia on this is beyond me.

  7. anonymous Says:

    TC: are you a dork? Did you even read the article? It clearly said that they wanted to get to the bottom of what TechPowerUp discovered so far. What is beyond me is your clear inability to read and understand the damn article before spewing crap out of your mouth.

  8. Jeff Says:

    @ anonymous,
    no need to flame

    @TC, we are not defending… we just said what we know.

  9. Hmm Says:

    You should do an actual benchmark test with the changes and see if changing the PCIe clock increases fps performance at all. Since the theory is that the PCIe bus is not bandwidth bottlenecked there should be very little performance gains, but if 3dmark scores are worth any value today then there should be a notable difference in some aspect of performance.

    Your results make me nervious about Nvidia’s intentions with PCIe 2.0. Also has anyone tested this with ATI cards?

  10. Hmm Says:

    Edit: I meant benchmarks* with the 9600GT since it has this issue (where 7000 and 8000 series don’t). If there is NOT a performance gain, then we can say that something else other than clock speed and bandwidth is changing with the frequency.

  11. PSOLORD Says:

    nvidia’s magic once more

  12. 9600GT's secret has been revealed! - DriverHeaven.net Says:

    [...] performance: techPowerUp! Review :: NVIDIA’s shady trick to boost the GeForce 9600GT :: Page 1 / 4 Follow-up to NVIDIA

  13. NVIDIA shady trick to 9600GT following-up #2 - Expreview.com Says:

    [...] Related:Follow-up to NVIDIA’s shady trick on 9600GT [...]

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