Performance difference between PCI-E x16 1.0 and PCI-E x16 2.0

[merrymustu]

Will there be any significant decrease in performance if I run my GTX 550 Ti on a PCI-E x16 1.0 slot?

Also will a pentium 4 prescott 2.66 GHz (Overclocked to 3.1 GHz) bottleneck the above mentioned card?

 

[merrymustu]

Guys please reply, please!!!!

 

[dugdiamond]

omg - there will be a terrible decrease in performance.

info here

the board only has a data rate of 250 MB/s and a transfer rate of 2.5 GT/s

but, the gfx card PCIe 2.0 standard doubles the per-lane throughput from the PCIe 1.0 standard's 250 MB/s to 500 MB/s. This means a 32-lane PCI connector (x32) can support throughput up to 16 GB/s aggregate. The PCIe 2.0 standard uses a base clock speed of 5.0 GHz, while the first version operates at 2.5 GHz.

so... it would be a waste of time putting this gfx card on this motherboard

 

[JezEngland]

The Pentium will bottleneck and the PCI slot is OK