I have F5b on my BIOS flash drive, just haven't tested it since I was told it simply fixes S3 sleep functions.

What sort of improvements does F5b offer over F3d? Does it have better vdroop control or enhanced stability? My vcore is already somewhat low so I think expecting it to be lower through a BIOS change is a bit unrealistic. I'm curious as to what your input is regarding F5b.

Thanks