Sneak-peek: We push the XFX 4770 in our Labs to an astounding OC level!
Overclocking is something that makes us weak at the knees, especially so when something is unexpectedly awesome at it - the XFX 4770 both doubled us over in joy and punched us in the back of the skull with it's overclocking prowess.
It's the first 40nm desktop graphics card we've looked at yet, and with the full complement of 640 shader units running at 750MHz stock it was dying for some tuning.
We threw it into our testbed and fired up Catalyst, hitting the max core clock of 830MHz without blinking, but this was nowhere near acceptable.
Thanks to an extremely helpful guide posted up on Legit Reviews we installed Rivatuner and got to overclocking the 4770 seriously...the bloody thing just kept on powering through each clockspeed we threw at it, laughing manically.
With a disbelieving stare we hit our final core and memory speeds - 934MHz core and 839MHz memory! This is a huge 25% core speed increase, achieved on the stock cooler without altering the fan speed at all, which passed 3DMark06 completely stably.
Check out the XFX 4770's GPUz page for more info, and make sure you snap up Issue 102 of Atomic for the full review of this incredibly capable card!
Issue: 107 | December, 2009