Afternoon gents,
I recently purchased the HIS HD 7950 from OcUK and it's a cracking card I must say. However having seen the performance of the GTX 670 and becoming all green eyed I've decided that it's a lazy card and it needs some motivation.
I got on to some guides about OC'ing it and they all report of getting speeds of 1.1Ghz core and 1.5Ghz mem without even touching the voltage (+20% power though). I got to 1Ghz core easily, no problems there. But the memory is causing problems around 1.4Ghz. I'm getting Artifacts, driver crashes and lockups etc. I did have problems through Overdrive in the AMD CCC utility, so I'm using afterburner now.
Question is, what stable clocks did you manage to achieve without touching the voltage? Looks like if I want to get to the speeds reported in some of the reviews, I'm going to need to bump it up, but I cannot seem to find the safe voltage range. If someone could point me in the right direction that would be great.
Thanks for reading
I recently purchased the HIS HD 7950 from OcUK and it's a cracking card I must say. However having seen the performance of the GTX 670 and becoming all green eyed I've decided that it's a lazy card and it needs some motivation.
I got on to some guides about OC'ing it and they all report of getting speeds of 1.1Ghz core and 1.5Ghz mem without even touching the voltage (+20% power though). I got to 1Ghz core easily, no problems there. But the memory is causing problems around 1.4Ghz. I'm getting Artifacts, driver crashes and lockups etc. I did have problems through Overdrive in the AMD CCC utility, so I'm using afterburner now.
Question is, what stable clocks did you manage to achieve without touching the voltage? Looks like if I want to get to the speeds reported in some of the reviews, I'm going to need to bump it up, but I cannot seem to find the safe voltage range. If someone could point me in the right direction that would be great.
Thanks for reading