to your interest R600 is built in TSMC 80-HS process node, which is a very very leaky one. The R600's ASIC behaves differently than maybe most of other GPUs on the market:
It is voltage and (as a result) frequency alone that decides the heat output and merely has nothing to do with actual work load. As a result, R600 GPU itself can clock up really high, someone broke the 1GHz barrier using R600. But the only thing limiting it's performance is the enormous amount of heat generated, which, if not dealt properly, might melt the core down
To experience this is easy, get a 2900XT, in some Windows overclock tool, (ATITOOL), ramp up the frequency and watch the fan blower take off. Then force it to run at 2D frequency (so low voltage) and run some full screen games, the fan never goes up!
Some rumour says that R600 leaks 30 Amps(!) power even in idle, which is simply fascinating of how they could bring something like this to the market....
It is voltage and (as a result) frequency alone that decides the heat output and merely has nothing to do with actual work load. As a result, R600 GPU itself can clock up really high, someone broke the 1GHz barrier using R600. But the only thing limiting it's performance is the enormous amount of heat generated, which, if not dealt properly, might melt the core down
To experience this is easy, get a 2900XT, in some Windows overclock tool, (ATITOOL), ramp up the frequency and watch the fan blower take off. Then force it to run at 2D frequency (so low voltage) and run some full screen games, the fan never goes up!
Some rumour says that R600 leaks 30 Amps(!) power even in idle, which is simply fascinating of how they could bring something like this to the market....
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