Go with the H50 with a push pull setup. I've had one on every setup since I tested it on my I7 last year. @ 4.4ghz with ht on @ 1.52v never got above 62c under load. an amazing piece of hardware. Currently using one on my 1055t @ 1.5v @ 4.1ghz and 49c under load. I've seen them floating around for 45-50 used, and occasionally best buy has them for 59.99 new. Good luck.