Hi Tech Legion posted a review on the Thermaltake ISGC-100 CPU Cooler

The Thermaltake ISGC-100 did not perform well on the AMD based system when compared to the stock cooler as a simple upgrade. The temperature at idle dropped 2 degrees from stock, but once placed under load, the temperature spiked 5 full degrees above that of the stock cooler under load. These results did not bode well for the ISGC-100 as any form of an upgrade. On the Intel system, the results were better when compared to stock at idle by 2 degrees, but under load, the temperature was again higher than the stock cooler. Results were similar when applied to both mild overclocks, but were no longer compared with stock due to the stock coolers not being able to handle the added heat. It is important to note that this cooler does allow mild overclock and is only intended as an upgrade from stock.

Thermaltake ISGC-100 CPU Cooler Review