1333 vs. 1600 For Overclocking

[Kralnor]

I am in the process of putting together a new Sandy Bridge build and I keep hearing that one should buy 1333 RAM for overclocking. However, I assume this kind of overclock would only be relevant if one wished to raise the BCLK, which as I understand it typically does not help much.

The reason I ask is that I can get a 2x4GB 1333 a decent bit cheaper than a 2x4GB 1600 kit (~€65 vs. ~€81).

The two kits below are the absolutely cheapest ones that I can find. Please note that I am -not- shopping at Newegg, but at a local retailer (due to 2 years of right to invoke lack of conformity), so ignore the prices on Newegg for this comparison.

http://www.newegg.com/Product/Product.aspx?Item=N82E16820139075&Tpk=KVR1333D3N9K2%2f8G
http://www.newegg.com/Product/Product.aspx?Item=N82E16820104239&Tpk=KHX1600C9D3X2K2%2f8GX

I'm aiming for a 4.5GHz OC using an i5-2500k.

Cheers.

 

[Cerealkiller45_86]

I use this with my build:
http://www.newegg.com/Product/Product.aspx?Item=N82E16820220484 bought it when it was super cheap. Works perfectly well and my 2500K is rock solid at 4.5 GHz. my mobo is Asus Sabertooth P67 B3.

 

[Kralnor]

Thanks for the reply, but that doesn't really answer my question.

I was specifically wondering if using cheaper DDR 1333 RAM would have any significant performance impact and if it would greatly hinder overclocking.

 

[livebriand]

It might not be a bad idea to have. I know that with the 1st gen Core cpus you were limited to 1333MHz even if you had 1600MHz ram, but overclocking let you use the whole speed. That might be the case with the 2nd gen ones. Therefore, I think it might not be a bad idea to have the faster RAM if you overclock it - since that way it won't wear out as fast.