Save 5 bucks.
It might be a little faster with it's better timing.
Will you be able to tell the difference?.......doubtful.
Perhaps a benchmark might show a minor diff.
I know this answer has probably been asked, before, but I'm just comparing 2 kinds.
Running on an ASUS P8Z77-V PRO
Price vs Speed vs Compatibility vs Real World difference.
Kingston HyperX (4x4GB) ~ $60
Komputerbay (2x8GB) ~ $65