What memory to buy when overclocking i7 4820K?

oxf77

oxf77

oxf77

Associate
Joined
15 Nov 2011
Posts
169
Im going to be buying 32GB of memory to use with an i7 4820K. I'm also going to get a corsair H110 CPU cooler (please advise if there is a better alternative).

What memory would be best for overclocking with this setup? My cheapest option was to get the Kingston HyperX- wasn't sure if it was good enough.
 
TeamGroup 2400mhz 2x4GB 8GB DC Kit - £65.99, using a 4820k here bought the 2133 kit as they were out of stock at the time.
 
oxf77 said:
Why pay for 2400MHz but run them at 2133?
Click to expand...

2 reasons:

With the current X79 and 87 platforms tighter timings at 2133 gives better overall results than slightly looser at 2400 (depending a bit on what you do).

2133MHz of the same kit wasn't available anyhow and the next speed down again was almost the same price as the 2400 kit and I wanted these modules.

My board does happen to have some issues with 2400MHz but thats by the by - I can clock up higher and its stable - for some reason the BIOS has a bug where 1866 and 2400 the VTT and IMC will randomly drop to default = BSOD if its not stable with default voltage. Other speeds like 1600, 2133, 2600, etc. don't seem to be affected by it.
 
Last edited:
Rroff said:
2 reasons:

With the current X79 and 87 platforms tighter timings at 2133 gives better overall results than slightly looser at 2400 (depending a bit on what you do).

2133MHz of the same kit wasn't available anyhow and the next speed down again was almost the same price as the 2400 kit and I wanted these modules.

My board does happen to have some issues with 2400MHz but thats by the by - I can clock up higher and its stable - for some reason the BIOS has a bug where 1866 and 2400 the VTT and IMC will randomly drop to default = BSOD if its not stable with default voltage. Other speeds like 1600, 2133, 2600, etc. don't seem to be affected by it.
Click to expand...
ok :)

What board do you all have? Somebody recommended the Asus P9X79. If its anything as good as my Asus P5W DH Deluxe then im going to do well!

Also, is there any mathematical way to work out whether a higher clock speed is better, or lower latency settings is better?
 
oxf77 said:
ok :)

What board do you all have? Somebody recommended the Asus P9X79. If its anything as good as my Asus P5W DH Deluxe then im going to do well!

Also, is there any mathematical way to work out whether a higher clock speed is better, or lower latency settings is better?
Click to expand...

Couldn't really reccomend the board I use, didn't buy it with any real degree of overclocking in mind.

You'd need indepth knowledge of how a program worked to calculate it, easier just to benchmark different settings but tbh there is rarely more than about 5% difference between any combination of ram performance wise.
 
For games, (my main use) ive noticed no difference with ram clocked from 2400mhz 2t to 2600mhz 1t. Ive still got to tune secondary timings a bit yet. Im doing it more for experimenting and benching tbh. Haswell is awesome for getting the most out of ram.
 
Get some gskill trident x 2400c10

Mine will do 2400 @ c9, not tried 2133 but c8 maybe possible, great price too. Its just a shame ocuk dont stock them.
 
2400c10 trident x kit, threw out a few hundred errors in memtest at xmp, will get them rma'd as soon as I get time :p
 
You must log in or register to reply here.
Back
Top Bottom