Gigabyte Radeon HD 5670 1GB Video Card Review

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Gigabyte Radeon 5670

To overclock the Radeon HD 5670 1GB graphics card, we used the
Overdrive utility that is part of the CATALYST Control Center. When you
‘unlock’ the ATI Overdrive, you can manually set the clock and memory
settings or let the ‘auto-tune’ utility set the frequencies for you.
This utility determines the
highest core and memory clock frequency that is stable and shows you
what the GPU temperature is and how much load the GPU is under during

Gigabyte Radeon 5670

We started out at the default settings of 785MHz on the core
and 1000MHz on the memory, but were able to reach 840MHz on the core and
1040MHz on the GDDR5 memory. This is a 55MHz overclock on the core
and a 40MHz boost on the GDDR5 memory ICs.

To see what kind of benefit we would see from overclocking, we fired up 3DMark Vantage and manually
set the fans at 100% just to be sure heat wasn’t an issue when
benchmarking at this overclock.

Gigabyte Radeon 5670

Overclocking Results: In our original testing of 3dMark Vantage, we scored x2335 for our overall score and 2239 for the GPU score.  With the overclock enabled, we jumped to x2488 on the overall score and 2388 on the GPU score, which was a nearly 7% gain for both scores.
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