Upgrading - what do you think?

Series60

Reputable
Feb 19, 2014
22
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4,510
Friend of mine have this system
amd x6 1075T
990xa-ud3
2x 6850 1gb

and he can not decide which upgrade path to choose, for him is either 4670K with z87 and keep his 2x 6850, or a FX 8350 and buy another 2x gpu's of 7850

which one is better in the current time, and in the long term?