Haswell RAM question

I see no reason why it should not run at those speeds bar motherboard limitations.

What chip and board are you looking at using?
 
Yes it will work fine on that board, im using the same board with a 4770k haswell @ 4.6ghz and all 4 slots populated, 4 x 2gb sticks of G.Skill Ripjaws 2133mhz 9-11-9-28-2T 1.64v

G.skill are one of the few companies on Gigabytes recommended RAM list
 
Haswell is fine with ram upto and over 1.65v, running the kit in sig at 1.75v @2600mhz, it's rated for 1.65v @2400mhz.
 
Was thinking of upgrading myself i have the MSI Z87-G43 and 4670K @4.2 and currently have two 4gb pnp 1600mhz kingston, im wondering am i better getting another two and spreading them across the slots or getting two new 8gb sticks with faster ram?
 
Ripshod said:
I'm not sure how it works with haswell, but with my amd systems I find 1600MHz and tighter timings = lower latency = faster response.
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Sweet spot for current intel platforms tends to be 2133 @ CAS9 for the best balanced performance - though 1866 isn't really that much slower and can sometimes be a lot cheaper and 2400 @ CAS9 or 10 is another good option. Other than that its only really worth going for anything different RAM wise if you have specific needs i.e. high end multi GPU with 6+ core CPUs on X79 can get a bit of a benefit from silly high MHz RAM but in general its not really worth it.
 
Depends a bit on the nature of the data its computing - if its uploading big datasets and/or regularly pushing blocks of data to and from the GPU then some decently fast MHz RAM may help a fair bit - if its mostly using the GPU for advanced calculations rather than crunching through data then there will be little difference over 1600MHz if at all for that useage.
 
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