Quote Originally Posted by saaya View Post
your saying that performance increases minimally because the mem timings get adjusted automatically to the higher memory speeds...

but what do you mean with people confuse that with a memory bottleneck?

a memory bottleneck indication would be if performance WOULD increase when ocing the memory, not when ocing memory barely does anything at all, like in this case...

and yes, the timings get adjusted automatically on ati cards, on nv cards as well afaik... but the increase in timings is not linear, so higher mem clocks still increase the bandwidth even though timings get increased.
i do have an idealistic view on memory bandwidth but obviously you would have to consider some things require a lot of bandwidth. in games AA, AF, fillrates are bandwidth intensive. in gpgpu the bottleneck will usually be bandwidth. transcoding is a good example of this. fortunately some things dont have that problem, like perlin noise which loves vectors or texture sampling. i think it caches really well too.