XFX GeForce 7900GS Extreme 480M Overclocking
Posted: Fri Oct 06, 2006 9:35 am
I picked up a second XFX GeForce 7900GS Extreme 480M graphics card and wanted to push the graphics card to the limits on what it can handle.
The stock clocks are 480Mhz and 700MHz, which means the card is already overclocked as default on the 7900GS is 450MHz and 660MHz.
So.... 450MHz and 660MHz is what NVIDIA sets the stock 7900GS's at... I wonder what water cooling just the GPU with a Maze 4 water block can do with no cooling at all on the memory and no voltage or vBIOS flashes...
On our previous 7900GS we were able to hit 645MHz on the core and 840MHz on the memory using coolbits and this time coolbits shows 660Mhz and 840MHz, so we know we got a better overclocker. We ditched coolbits and used Rivatuner so we could go beyond 840Mhz on the memory. The results? How does 671MHz on the core and 902MHz on the memory sound? This is a 221MHz overclock on the core and an amazing 242Mhz overclock on the memory. The memory has gone from 1.32GHz to 1.80GHz since it's GDDR3 memory IC's.
Running official Futuremark Approved 91.47 drivers we put up some serious numbers in 3dmark 05 and 06 for having just a single graphics card...
Over 11,000 points in 3dmark2005 and the processor is not even overclocked!
6,100 points in 3dmark06 is impressive from a mid-range ~$200 card.
The stock clocks are 480Mhz and 700MHz, which means the card is already overclocked as default on the 7900GS is 450MHz and 660MHz.
So.... 450MHz and 660MHz is what NVIDIA sets the stock 7900GS's at... I wonder what water cooling just the GPU with a Maze 4 water block can do with no cooling at all on the memory and no voltage or vBIOS flashes...
On our previous 7900GS we were able to hit 645MHz on the core and 840MHz on the memory using coolbits and this time coolbits shows 660Mhz and 840MHz, so we know we got a better overclocker. We ditched coolbits and used Rivatuner so we could go beyond 840Mhz on the memory. The results? How does 671MHz on the core and 902MHz on the memory sound? This is a 221MHz overclock on the core and an amazing 242Mhz overclock on the memory. The memory has gone from 1.32GHz to 1.80GHz since it's GDDR3 memory IC's.
Running official Futuremark Approved 91.47 drivers we put up some serious numbers in 3dmark 05 and 06 for having just a single graphics card...
Over 11,000 points in 3dmark2005 and the processor is not even overclocked!
6,100 points in 3dmark06 is impressive from a mid-range ~$200 card.
