Whats the difference between PCIe 2.0 and PCIe 1.0

[spliff5522]

whats the difference between PCIe 2.0 and PCIe 1.0 and can i run a 2.0 card in a 1.0 slot and what would be the best graphics card for my system

System specs:
AMD Athlon 64 x2 dualcore processor 4200+ 2.2GHZ
4.00GB RAM
NVIDIA 8400 GS is the current card

 

[jefe323]

PCIe 1.0 has half the bandwidth of a PCIe 2.0 slot of the same width

PCIe 1.0 and PCIe 2.0 are backwards and forwards compatible so you can put a 2.0 card in a 1.0 slot, but it will run at 1.0 speeds

 

[spliff5522]

So is it even worth buying a 2.0 card

 

[warmon6]

whats the difference between PCIe 2.0 and PCIe 1.0 and can i run a 2.0 card in a 1.0 slot and what would be the best graphics card for my system

System specs:
AMD Athlon 64 x2 dualcore processor 4200+ 2.2GHZ
4.00GB RAM
NVIDIA 8400 GS is the current card

Other than bandwidth, there no difference between pci-e 1.0 and 2.0.

As for can you run a 2.0 card on a 1.0 slot? Yes. PCI-e slots & cards of both versions can run in any of the configurations.

http://en.wikipedia.org/wiki/PCI_Express

As for what gpu to get. Kind hard to say. You are going to lose a little bit of performance by not running a pci-e 2.0 card on a 2.0 slot, but the cpu is going to be more of the bottle neck. :/

Also what games are you playing?

 

[warmon6]

So is it even worth buying a 2.0 card

Yeah it'll worth it.

PCI-e 1.0 x16 bandwidth = PCI-e 2.0 x8 speed

And we see even with the lastest gpu's that it takes a high end setup to see a difference between pci-e 2.0 x8 and x16.

 

[spliff5522]

i want to play starcraft 2
i forgot to mention my PSU is 450watt
my budgets around $400

 

[jefe323]

yes it is worth it, you'll only see about a 4% drop in performance from x16 to x8

i'd recommend an ati hd5770

 

[spliff5522]

cool so with the ati hd5770 there should no isuues even with a 2.2ghz cpu or should i try and upgrade that as well

sorry i'm still kinda new to the hardware stuff

 

[jrhii]

What cpu? how many cores?

 

[jefe323]

cool so with the ati hd5770 there should no isuues even with a 2.2ghz cpu or should i try and upgrade that as well

sorry i'm still kinda new to the hardware stuff

you might run into a slight bottleneck

 

[spliff5522]

AMD Athlon 64 x2 dualcore processor 4200+ 2.2GHZ 2 cores