Maher90 :
Woh alot of comments ANYWAYS i tested RadeonPro on Skyrim but it only Hid the stuttering but it was present,secondly i read somewhere that the change of analogue to digital could cause some hiccup or something because i have a VGA monitor and i am using a DVI to VGA adapter,Thirdly I DON'T HAVE THE BUDGET FOR A Crossfire Jeez :l , Fourthly i am downloading the Fine "UnBugged CPU" games and i will test them out
It sounds like the DVI-to-VGA could be the issue here. If you have a DVI television or an HDMI cable and an HDMI compatible television, try testing it out on that.
If that proves not to be the issue, try turning off V-Sync. V-Sync adds major stuttering issues unless you're constantly above 60 frames or have an Nvidia Card to turn on adaptive V-Sync. Also, what speed is your RAM, and what's the supported memory frequency for your motherboard? This could also be the issue.
If you think about upgrading, I wouldn't trust crossfire for two reasons: A. AMD has not worked out the microstuttering kinks like Nvidia mostly has. B. That's too much for an FX-6300. If you really want to upgrade your GPU, go for a GTX 660 (standard) or a Radeon HD 7870. Anything better than those will create a bottleneck in your system (take it from me, a guy with a GTX 770 and an FX-6300
).
EDIT: This is certainly not a CPU issue. Your CPU is more than enough to handle your GPU, and for two different ones to be faulty and causing stuttering is well within the range of improbability.