i think so. there much cooler than my gtx 280s

I ran the i7 @ 4.2 with 2 gtx 280s and needed 5x 120 radiators to keep the fans on low

the other night i turned off 3 120 raid fans, only keeping 2 120s running and looped 06 all night with prime and in moring and it was fine with 2x 5870

but for room id run at least the 3-120 for future proofing