XFX GeForce 7600 GT 256MB DDR3 (PV-T73G-UGE3, PV-T73G-UGE7)
Clock rate: 580 MHz Memory Clock:1.5 GHz
XFX GeForce 7600 GT 256MB DDR3 XXX Edition (PV-T73G-UDD3, V-T73G-UDD7)
Memory Clock: 1.6 GHz Clock rate:590 MHz
10 mhz on the core is a real joke
And I think the 100mhz on the memory should be easy to do.
I would think it would be easy to replicate/surpass...And that the extra performance would be minimal.