Mac pro 3.1 gpu situation

[Guest Stepan123]

https://forums.macrumors.com/attachments/img_0652-jpeg.2452024/ Hello there, i have 2 mac pros but only 1 gpu and i need another one. If i buy ati radeon hd2600 but some random one (that one on picture) on internet will it work?

 

Source: MacRumors