I hope okay, because I just ordered one from
Taisol and on their site it is rated to 1.5GHz. It's certainly not the best cooler out there, but I didn't want to spend anymore $$$ for a heatsink, and from reviews I saw, it did pretty good. I didn't want a loud fan. You can always put on a bigger fan to push more air, or get their upgraded version with bigger fan, the CGK760092B.