So I have some Dell gaming pc from like 4 years ago, has a decent CPU and Ram but I'm stuck with a Radeon 5770 which is lagging me behind really bad, I don't want to do an entire new build, not insterested in that. I'm looking for the best GPU (AMD/nividiadoesn't matter) that is either a Hybrid like some of the GPU's that MSI have that can switch between Legacy and UEFI or ones that are straight Legacy. Thank you for the help.