ASUS M2N MX SE mobo
AMD Phenom 9550 Quad-Core 2.2 (Rated at 4.4?)
2GB (2x1GB) PC5300 DDR2 667 Dual Channel
GeForce 8600GT 1GB PCI EXpress 16X dual head, tv out
600W ATX Power Supply
My Question is, if I were to upgrade my GPU to a radeon 6850 and my ram to 4gb, would I bottleneck the mobo? I was told due to my mobo only being a PCI-E 16, not a PCI-E 2.0 16, it would bottleneck and I would see no advancements.
Yes, you were told correctly. Upgrade your motherboard before you upgrade your GPU.
Is there any reason why? For example I also heard that the pci-e 2.0s were back compatible so it would work and make a difference... Basically the reason I'm asking is some people are saying yea it'll be a nice upgrade and work fine, while others are saying you wont notice a difference, and they just truly contradict each other.