LookItsRain :
http://ark.intel.com/products/42920/Intel-Core2-Quad-Processor-Q9505-6M-Cache-2_83-GHz-1333-MHz-FSB
You could put this on your mobo.
Cpu:Intel® Core™2 Quad Processor Q9505
Gpu:SAPPHIRE ATI 7790 2GB DDR5 128BIT
Motherboard:Gigabyte GA-g41m-combo r2.0
is that all compatible with each other and no bottleneck