I just bought Gigabyte UD5 now.

I am Planning to do only 3.8Ghz or 4 Ghz max, Can anyone tell me if the below Memory is good?
OCZ Gold 6GB (3 x 2GB) 240-Pin DDR3 SDRAM DDR3 1600 (PC3 12800) Triple Channel Kit Desktop Memory - Retail
http://www.newegg.com/Product/Produc...82E16820227365

Is DDR3 1333 sufficient for reaching 4Ghz or is it Good to have DDR3 1600?

Thanks.