Both have 1 gig RAM. GeForce has twice as wide of a RAM bus but is GDDR3 vs GDDR5 on the Radeon. Radeon runs a faster clock.
Despite being a couple of years newer and supporting DirectX 11, GPU Boss rates the GeForce a bit higher overall. Most GPU benchmark and ranking sites either do not have data on the 9800 GT with 1 gig, or it's a bit difficult to make the site give the info for the 1 gig instead of the 512 meg version.
Swap in the Radeon to get DirectX 11 compatibility or see if I can come up with a better GPU? This Radeon is a freebie, pulled from an HP Core 2 Quad desktop.
Despite being a couple of years newer and supporting DirectX 11, GPU Boss rates the GeForce a bit higher overall. Most GPU benchmark and ranking sites either do not have data on the 9800 GT with 1 gig, or it's a bit difficult to make the site give the info for the 1 gig instead of the 512 meg version.
Swap in the Radeon to get DirectX 11 compatibility or see if I can come up with a better GPU? This Radeon is a freebie, pulled from an HP Core 2 Quad desktop.