Question pci express 2 vs 3 graphics compatibility

[precherman]

can i use an rx 480 (for example) in a pci express 2 motherboard? what will i be sacrificing?

 

[Metal Messiah.]

Yes, PIC-Express is backwards compatible. You can use the card on a version 2.0 motherboard. There isn't a very huge performance difference, between those two, and in real world gaming, few extra frames won't be noticeable.

In short, there won't be any performance loss. Which MOBO are you having ? Also, list your other PC specs.

Impact of PCI-E Speed on Gaming Performance

Many hardware sites have shown in the past that video cards do not show any performance decrease by running in x8 mode and cannot utilize the larger bandwidth provided by the latest Gen3 specification. However, video cards are getting faster and faster so we felt it this is still true. Also...

www.pugetsystems.com

 

[Metal Messiah.]

Hello,

Kindly list your Motherboard's make and exact MODEL number. Which MOBO is that ?

ANANDTECH also posted an article detailing this PCI-exp feature before. It's a very OLD article, but highlights some more points on this issue, but is slightly technical in nature.

https://www.anandtech.com/show/2412/3