I have a gpu and it says it has 1gb gddr5. when i press lookup i go on a site and the gddr5 is crossed and replaced with ddr3 and a couple of other things more.
https://www.techpowerup.com/gpu-specs/sapphire-hd-5670-hypermemory.b352
https://www.techpowerup.com/gpu-specs/sapphire-hd-5670-hypermemory.b352