AMD Radeon HD 5870 Video Card Overclocking

Overclocked Performance

So we have an extra 85MHz GPU and 80MHz memory, what does that translate to in performance? We fired up 3D Mark Vantage to see what we had gained.

To ensure that we are getting very high performance, our i7 920 is overclocked to a full 4GHz (200×20). Memory is run at 1600MHz with 8-8-8-21 timings.

We see very little difference in overall score but what does the GPU score look like?

Very nice! We picked up 700 points which is a little over 8%, our increase in GPU clock speed is right at 9% so these are pretty good numbers!

Need for Speed: Shift shows similar performance gains of ~8%. Not a bad gain for free!

By no means does this write the entire chapter of 5870 overclocking. I’m certain that once more tools are available that we’ll see some monster clock speeds coming out of this beast.