i had akasa 965 which is identical to the freezer pro 7 (3 heatpipe cooler) & performance wasn't that good on my overclocked Q6600 so i bought the thermalight ultima which has 6 heatpipes it cools much better than the akasa but costs nearly twice as much but is true you get what you pay for. 
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Q6600 @ 3.5Ghz | 8GB DDR2 1070 | Gigabyte EP45 DS3 | Sapphire HD 4870 | WD 640 HDD | X-Fi Gamer | Corsair TX850 | CM690 +7x120mm Fans| 360 Wireless JPad | LG M227WD (16:9).