Memory controllers are in the CPU these days, so you need that as well. Some of the Sandy Bridge models were limited to 1066 IIRC. It'll still be compatible, you just may need to set the speed manually if it doesn't have an SPD profile (or accept whatever lower speed it defaults to).
Although I'd personally pick it up second hand rather than buy from some strange direct from china seller on Amazon marketplace. CEX sells 4GB DDR3-1333 for £6 a stick with a 24 month warranty: CEX 4GB DDR3-1333