RH vs RM

[sosl]

Hello.

Is there a real difference between the RH and RM versions of the same memory speed and CL?

e.g. [ Ripjaws] F3-12800CL7D-4GBRH (at 7-7-7-24-2) vs [ Ripjaws] F3-12800CL7D-4GBRM (at 7-8-7-24-2).

The price difference is quite large between them (about 30$ here), but speed and timings are almost identical.

Does any of these sets better for a 4x2GB configuration? (In GSkill's site the RM version appears in 2x2 or 4x2, but the RH only appears in 2x2)

Thanks!

[GSKILL TECH]

It would depend more on your motherboard rather than your memory. Either of the sets can be fine depending on the motherboard.

Thank you
GSKILL SUPPORT

[sosl]

I'm thinking of Gigabyte P55A-UD3.

Also - why the price difference? Is 1 clock cycle in tRCD really has so much influence on performance?

Another question - can these memories work with 1 command rate?

[G.SKILL]

the price difference is caused by different IC we used
and you could try with 1 command rate, but the spec we guarantee is 2 command rate
thanks


G.S

[sosl]

So the RH is aimed more towards overclocking?
Could you write what IC is used in each set? (just to make sure I make the right decision)

[G.SKILL]

yes, generally, RH is more easy to overclock
for the IC, sorry, according to our policy, we can't tell that
thanks


G.S

[sosl]

Ok, seems like I'll go for the RH version.

Last question: What is the height of this product? (in its highest point)

More specifically - does it fit with Noctua NH-U12P SE2 cooling on a Gigabyte P55A UD3 board, all RAM slots occupied with RIPJAWS (4x2GB)?

[G.SKILL]

including the memory module, its height is 40mm
thanks


G.S