ASUS M2N MX SE Bottleneck

[vignol91]

Hello, I currently have a set up of:

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.

 

[Dereck47]

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.

 

[vignol91]

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.

 

[Dereck47]

Yes it may be backward compatible and work but just be aware that the performance of the card will be at PCIe 1.0. So if your current card is a high-end PCIe 1.0 then you won't notice a difference.