Since my new sandy bridge setup is arriving soon, which ram shall I get?
a) 8GB (2x4GB) Corsair Vengeance DDR3 PC3-12800 (1600), Non-ECC Unbuffered, CAS 8-8-8-24, XMP, 1.50V
b) 8GB (4x2GB) Corsair Dominator GT, DDR3 PC3-14900 (1866), CAS 9-9-9-24, DHX, XMP, DF, 1.65V
c)8GB (4x2GB) Corsair Dominator GT, DDR3 PC3-14900 (1866), CAS 9-9-9-24, DHX, XMP, DF, 1.65V