I have a machine with a 6800GT AGP card overclocked to 400/1100. It used to reach around 95C on full load with the stock cooler, but recently the stock cooler became very noisy, as well as less effective, with the temps reaching 110C. So I got the NV Silencer 5 R3, and now my load temps don't even reach 60C, and the thing is very quite - it can't be heard over the machine's normal noise which is VERY LOW to begin with (Antec Sonata with 1 120 mm case fan, and a quiet thermaltake venus HSF for the CPU). Moreover it lowered my case temps because of exhausting the hot air outside. So the NV silencer is a great product, and is impressive to look at as well.