Is My Graphics Card Running Slow?

[Minimoke]

Hey everyone,
I've been using CCC with my 4850 X2 2GB for about a week now, and I've noticed that I can't get the speed of the memory above 1200MHz, when the OcUK description says the card sits at 1986MHz. Am I being stupid? And when I put both the GPu and Memory at full [700MHz max for GPU] I get glitches in my games. My PSU is 700W, and I'm only running a few hard drives, so that can't be the problem. It's not getting hot either. Any advice? Cheers, Chris.

 

[RJC]

I think what your looking at is the 2d clocks, this will raise to 3d clocks when required - ie gaming

 

[Rroff]

Its prolly the DDR thing - is stock 993MHz? if so when you set it to 1200MHz its actually doing 2400MHz - quite a lot over the stock of 1986Mhz.

 

[scaza]

Rroff Sounds Spot On

 

[Lightnix]

Yeah, I'm gonna second Rroff - the memory's running at twice what it displays there, if you were to clock the memory to 1986MHz, it'd actually be running at 3972MHz - in GDDR3 terms that means the card would fail very quickly.

 

[northun_munky]

Rroff Sounds Spot On

+1

 

[Minimoke]

Hey guys,
I let CCC do its Auto-Tune, and it's basically put the card to full; 690MHz on the GPU and 1188MHz on the Memory. It's shown it to be stable, and the temperatures are still brilliant. Surely it wouldn't overclock itself too much right? I haven't really got a need to run it that fast, And 99% of the time the card is in what I suppose you would call 'efficiency mode', wher the GPU is 500MHz and the memory is 750MHz. It only hits those top clock speeds when I am gaming. Should I turn it down? Rroff does sound correct, thanks for everyones help. Cheers, Chris.