This belongs to this thread.

Memory clock impact on result:

P7358 --- GTX580@1000/2000 --- 980X@4610 --- Sector 5 2250@2000/7-7-7-20-1T --- R3E --- donmarkoni

P7570 --- GTX580@1000/2400 --- 980X@4610 --- Sector 5 2250@2000/7-7-7-20-1T --- R3E --- donmarkoni