Help Buying RAM

[Barnzee]

I have the new 2011 MBP 15" and I want to upgrade to 8GB of RAM. However, Crucial Lists my RAM as 1666Mhz and OWC lists it as 1333Mhz. which one is better? which one is compatible? Thanks

 

[Hellhammer]

Both should work but it is recommended to use 1333MHz since that is what it ships with. It's a bit faster too.

http://www.newegg.com/Product/Product.aspx?Item=N82E16820231295

 

[Jayrcee]

I agree with Hellhammer, go with 1333MHz.