I think this one deserves own thread.

Yesterday W1zzard was able to provide me a beta-version of ATITool which included options to raise the GPU speed for R520. Well.. it worked and didn't crash at 860 MHz limit where I was stuck with ATI's internal Winclk utility.



Radeon X1800 XT was cooled down to -80 Celsius and I applied some extra voltage to GPU and memory.

The result:



Radeon X1800 XT running GPU @ 1005,75 MHz and Samsung 1,26 ns GDDR3 memory @ 1003,50 MHz (2007 MHz DDR) in 2D-mode. No 3DMark05 yet.. I'll try that next.

I think this is the first time in world when graphics card breaks the 1 GHz barrier! On CPU side we saw this 6 years ago when Intel and AMD were really pushing Athlon and Pentium III to 1 GHz.

Thanks to W1zzard for providing a beta-version of ATITools and my co-editor Suvanto for helping me during the tests.

More pictures and a full-size screenshot can be found from my 3DMark site: http://www.muropaketti.com/3dmark/