I got tired of trying to make a decision (it was bad enough trying to decide on a motherboard!) so let OcUK do it for me. The Corsair A50's on the list this week and I bought that. I'd probably have bought the Freezer 13 otherwise (7 Pro has been very good on my E8400). I certainly didn't want to spend more chasing small incremental possibilites with a kilo of expensive heatsink hanging off my motherboard.
My 2500k/MSI-GD65/XMS3 is currently only tootling along at basic settings (behaving very much like my
[email protected] FWIW) with Prime95 thrashing all 4 cores. After about 20 minutes core temps are 43, 44, 41, 41.
I'll leave it like that overnight to ensure everything's stable and the heatsink gloop has glooped properly before I start testing tomorrow. I've no idea whether my numbers are good, bad or indifferent, but in tests it seems to score close enough to the "big boys" to satisfy me.
It's easy to install, big but not huge, and the only downside (which I didn't realise before buying) is that it's only a 3-pin fan, so no variability unless you use the enclosed adaptor to cut the voltage. That's not a good solution though. The fan's not exactly loud, but it's not quiet either.
If I was buying again I'd probably go for the 13. Seems like a very similar design with proper fan control.
Andrew McP