Will i5 2310 bottleneck on Z77 MB with two 7850? (Closed)

[Dragonslayer999]

My son currently has i5 2310 on H61 motherboard along with 7850 2G. If I buy another 7850 2G for crossfire and upgrade motherboard to Z77 with two X16 3.0 lanes. The games are Guild war 2, crysis 3, dead space 3, and skyrim on only 1 monitor at 1080p. I just want to know whether i5 2310 will become bottleneck or not for those games running on two 7850. Thanks for your advice.

 

[Termie]

Definitely. 7850 crossfire, when it works, is about 20 percent faster than a 7970, which on its own would push a 2500k pretty hard. You'd lose about 30% of potential performance, roughly speaking. A much better upgrade that would be cheaper than z77+7850 would be a 7950, which happens to come with Crysis 3 for free.

 

[mfenn]

Definitely. 7850 crossfire, when it works, is about 20 percent faster than a 7970, which on its own would push a 2500k pretty hard. You'd lose about 30% of potential performance, roughly speaking. A much better upgrade that would be cheaper than z77+7850 would be a 7950, which happens to come with Crysis 3 for free.

Agree. And plus you don't have to deal with any of the usual multi-GPU nonsense.

 

[Dragonslayer999]

Termie and mfenn,

Thank you for your answer. His XFX 7850 2G has already been OC from 860/1200 to 1125/1200 and that is 30% OC for the GPU core. I think this put it close to performance of 7950 at stock. Since he just wants another 7850, based on both of your input, I might as well wait for Haswel coming out in a few more months and get 4670K, MB and another 7850 at the same time and be done with it. Thank you.