will pci-e 1.1 bottleneck a 4870?

[natty1]

I wanna get a 4870 but my motherboard is only PCI-E 1.1, not 2.0. Will the card be held back by this?

 

[cmdrdredd]

no not at all. I have a PCIe 1.1 board and my scores are in line with PCIE 2.0 users and their GTX280s.

 

[VERTIGGO]

when it works, no. I had a problem for a while though, where my 4870x2 thought the PCI-E 1.1 x16 slot was a PCI-E 2.0 x1 slot. It then would shut off the internal crossfire. This was with my P5K, but has cleared up randomly, so it may or may not be an issue with others.

 

[TC91]

maybe by 3-5% at most, but likely no difference

 

[heyheybooboo]

I'd say it will depend upon the game and screen resolution - and in the overwhelming majority of cases will make minimal difference as TC said.

As long as textures are stored in the card frame buffers you're gtg - might be a bit of a bottleneck in the 'usual suspect' games. Crysis, FSX, COD4 ... when you have to access main system memory across the bus.

Certainly no reason not to buy the HD 4870 (or to splurge on a new mobo just for PCIe Gen2).

 

[chizow]

Toms Hardware PCI with 4870s

You'll want to compare Single Card PCI 1.1 to Single Card PCI 2.0. With a single 4870, not enough to really matter. Only game they tested that showed any significant difference was GRiD.