What CAS settings/Speed should I expect to reasonably achieve with recent DDR3 modules?

[Cogitation]

I've never tried to overclock DDR3 ram, and I'm looking at building new systems with it. Can an expert overclocker chime in with what's reasonable and what kind of brand/model combinations I should look into for achieving good overclocks?

What about RAM with a decent XMS profile out of the box?

 

[i7Baby]

Just buy high speed ram and set it to that speed by enabling XMP in bios.

 

[6R1M01R3]

1600 CAS 7-8/1866 CAS 8-9/2133 CAS 9-10/2400 CAS 10-11.
Dimms that do not match those arent worth buying.

 

[Tradesman1]

It will primarily depend on the CPU (more precisely the individual MC (memory controller) in the CPU ( and Intel MCs are much stronger than AMDs and can handle higher freq DRAM) and the Set of DRAM itself - do you have a CPU/mobo combo picked out?

 

[Cogitation]

No... I'm trying to get caught back up for system building. It's been a while since I built one. Can you offer a few scenarios? Intel Z97/X79 versus AMD AM3+?

 

[Tradesman1]

Am3+ uses the FX CPUs which are rated up to 1866 at 1 stick per channel, have seen some run 2133/2400 in small amounts (4/8GB).....the Intel rigs with K CPUs, it's more the sky's the limit, but again it comes back to the CPU (MC)...as far as actually OCing the DRAM, that often depends on the skill and patience of the one doing the OCing, most good sets of sticks with a K CPU can fairly easily OC up a step in CL/freq and many can go higher, I tend to lean towards GSkill, their Tridents are extremely good OCers and their lines of Snipers and the Ripjaws lines (RJ X and RJ Z) are very good also. If looking to build a good rig that you can OC and grow, I'd suggest a Z97 mobo and ppair it with a 46/4790K CPU, this will open the avenue to Broadwell CPUs in the future and the Z97s OC and deal with DRAM and heat better than the Z87s