1x Powercolor 4850
Stock without 80mm exhaust fan in the back of case:
Idle: 78C
Load: 101C
Room: 31C
*After replacing thermal grease with AS5:
Idle: 75C
Load: 98C
Room: 32C
50% fan and without 80mm exhaust fan:
Idle: 55C
Load: 82C
Room: 32C
*AS5:
Idle: 54C
Load: 79C
Room: 31C
75% fan and without 80mm exhaust fan:
Idle: 53C
Load: 77C
Room: 31C
*AS5:
Idle: 54C
Load: 75C
Room: 32C
100% fan and without 80mm exhaust fan:
Idle: 51C
Load: 68C
Room: 33C
*AS5:
Idle: 51C
Load: 65C
Room: 31C
Now with exhaust fan and AS5 already applied:
Stock:
Idle: 68C
Load: 92C
Room: 31C
50%:
Idle: 47C
Load: 72C
Room: 32C
75%:
Idle: 45C
Load: 68C
Room: 32C
100%:
Idle: 43C
Load: 64C
Room: 33C
Included results with and without the exhaust fan to show you the impact of having one in your PC.
Now for a special bench: one 80mm and one 120mm exhaust (2 fans) with AS5, and fan at 50%:
Idle: 45C
Load: 68C
Room: 32C
Note: the 120mm fan is on the side of the case, about directly to the side of the card. Hmm... or should I say, it's not sucking air out of the fan, but it's sucking air out from the top of the card, whereas the 80mm is pulling out air from the CPU cooler and the back of the card.