abigepicfail :
charmer :
well thats a decent build but before ill compare the tow pls tell me what PSU do you have (it may not support crossfire)
Rosewill Green Series 630W
Well thats what i thought, u will not be to have a stable crossfire with this PSU, you may even be able to boot your system.
you should know that Rosewill isnt the best PSU so you will have to buy a new one for sure if u want crossfire.
SO those are your options:
1st: CrossFire
Advantage :
* you will get better peformance by 20%~40% then a single 7950.
Dissadvantage :
* you will have to buy a new PSU with at least 750W due to AMD cpu witch uses alot of Watt and ofc for a stable crossfire.
2nd : Buying The HD 7950
Advantage:
* investing your money in a brand new gpu that will last and support all new games - comes with a double amount of stream Processors, an extra Gbyte of ram, has 384-bit (vs 256-bit with the 7850) with will have a Huge impact on future games.
* its very OCble so you can OC it in the future if you will need a better performance.
* will not need a new PSU
* will cost less then a new 7850 + new PSU and you can always sell the current one u have.
Dissadvantage:
* it will perform less then two 7850
Hope it helped Good Luck