PCI Express question

[matchu]

Hi, everyone, I've a quick question about PCI Express

Are PCIe x16 cards automatically 2.0? Or are there PCIe x16 1.0 and 2.0 cards?

Thanks!

 

[LinkedKube]

There are both 1.0 and 2.0, but the 2.0 cards are backwards compatible with pci e 1.0 slots.

 

[matchu]

Thanks super smash brada

 

[teklord]

2.0 is backwards compatible with 1.0 and they are twice as fast but run at 1.0 speeds on 1.0 slots. 1.0 works on 2.0 slots but only operates at 1.0 speeds.