Firstly sorry if this is a stupid question, i'm a bit of a noob at all this stuff! 
I'm looking at upgrading my ram from pc2-5300 but not sure whether to go for pc2-6400 or pc2-8500.
My motherboard is Asus Striker Extreme which says is compatible with 800mhz ram which i think is the 6400 speed.
Would it hurt to spend that extra few quid for the 8500 ram?
I am looking at overclocking once i'v upgraded so not sure if that makes a difference?

I'm looking at upgrading my ram from pc2-5300 but not sure whether to go for pc2-6400 or pc2-8500.
My motherboard is Asus Striker Extreme which says is compatible with 800mhz ram which i think is the 6400 speed.
Would it hurt to spend that extra few quid for the 8500 ram?
I am looking at overclocking once i'v upgraded so not sure if that makes a difference?