Latency vs MHz

Been doing some over clocking with my Corsair Vengeance Pro 4x4 gig 1600 MHz memory. I have an Intel I5 4670 that is overclocked to 4.2GHz.

I have done three different benchmarks and each seem to run stable. Of course to get these different levels I have had to turn up the numbers to 12-12-12-36 for the 2200 and 2136 levels. At 1866 I have managed a stable 9-10-9-28 level.

While I understand the overall latency at the 2200 and 2136 Mhz levels are better I can't help but think the higher CAS numbers and such will be more of a negative impact in the long run. I have attached my 3 benchmarks here and would be interested in knowing what your thoughts are.

In the end there isn't a tonne of difference between some of the numbers, and probably won't be noticed by me when i play games.

Can you really not get 10-12-12-28 to run at DDR3-2000/2133/2200/2400?

What version are your modules? (The Version is printed on the label at the heatspreaders)

Can you really not get 10-12-12-28 to run at DDR3-2000/2133/2200/2400?

 

What version are your modules? (The Version is printed on the label at the heatspreaders)

Yes i could get it to run at 12-12-12-36 at 2200 but that was my upper limit. I remember being told find your upper limit at those specs and go down one or two to be safe and fine tune. I suppose I could relax them even further and try 15-15-15-45 at 2400 or higher, but would that really be worthwhile? I don't feel comfy going much higher than 1.6 v.

\\CMY8GX3M2A1600C9A\\

That is the model number and not the version of the ICs used. You can not really miss it, if you are looking at the label on the heatspreader.

Also i was asking about 10-12-12 not about 12-12-12, because for some chips having flat latencies is not optimal. Some very common ones should do CL10 @ DDR3-2133/2200 oder even DDR3-2400 below 1.65V.

That is the model number and not the version of the ICs used. You can not really miss it, if you are looking at the label on the heatspreader.

 

Also i was asking about 10-12-12 not about 12-12-12, because for some chips having flat latencies is not optimal. Some very common ones should do CL10 @ DDR3-2133/2200 oder even DDR3-2400 below 1.65V.

Version 3.24

That is the model number and not the version of the ICs used. You can not really miss it, if you are looking at the label on the heatspreader.

 

Also i was asking about 10-12-12 not about 12-12-12, because for some chips having flat latencies is not optimal. Some very common ones should do CL10 @ DDR3-2133/2200 oder even DDR3-2400 below 1.65V.

I found it very difficult to get a stable reading at 10-12-12 at 2133

Honestly I'm very happy with 1866 I think or 2000, just trying to figure out which is better with the pix I posted on the latencies i'm using.

Version 3.24

So it is a Micron based kit. Not the best clockers and will probably max out at CL11. If you can get 2000 9-10-9 (1.65V) or 2133/2200 11-11-11-28 stable, that would probably be good compromises of clock speed vs timings.

So it is a Micron based kit. Not the best clockers and will probably max out at CL11. If you can get 2000 9-10-9 (1.65V) or 2133/2200 11-11-11-28 stable, that would probably be good compromises of clock speed vs timings.

I appreciate you taking the time.. Do you believe 1.65 volts is okay? Most of the places I have seen on the internet cautions above 1.6. I can try the 2000 with 9-10-9-28 and see how it works, just don't wanna cook the memory. Yeah we live in Canada, sometimes we get the ****ty stuff .. hehe

Sadly My I5-4670k can't get above 4.2 ghz without temps going through the roof :(

If you are already having temperature issues, i'd stay away from trying to max out memory. It will impact your CPU temperatures slightly by itself and at some point even the vcore needed for a given overclock.

You could try it with your CPU @ default values or give it another shot, when you got yourself a better cooler.

If you are already having temperature issues, i'd stay away from trying to max out memory. It will impact your CPU temperatures slightly by itself and at some point even the vcore needed for a given overclock.

 

You could try it with your CPU @ default values or give it another shot, when you got yourself a better cooler.

Oh I got a really good cooler, the H100i and great airflow and fans in the 600T.. I just got a pissy chip. Had a friend try it on his rig and he could get it to 4.4ghz but at 80C running idle. Sux.

How much voltage does your cpu need for 4.2?

If more than 1.2V your chip is garbage a bit weak. Maybe try to get your uncore at 4.0 or 4.2 as well and then keep memory at 1866 cl9 or 2133 cl11.

Are your system voltages @ AUTO still? It could help reduce temperatures to configure those manually since some boards raise them drastically once you dial in any overclock.

How much voltage does your cpu need for 4.2?

 

If more than 1.2V your chip is garbage a bit weak. Maybe try to get your uncore at 4.0 or 4.2 as well and then keep memory at 1866 cl9 or 2133 cl11.

 

Are your system voltages @ AUTO still? It could help reduce temperatures to configure those manually since some boards raise them drastically once you dial in any overclock.

Yeah I believe it is a (weak) chip. I'm running currently at 4.0 and my memory is 1866 9/10/9. All stable but i'm disappointed. I probably could get it to 2133 cl11 but is it really worth it? Going to wait until the new CPUS are out and try the CPU lottery then. My old i5 2500k I was able to over clock and keep stable at 5.0 .. now THAT was a chip.

My old i5 2500k I was able to over clock and keep stable at 5.0 .. now THAT was a chip.

Yeah i had one of those myself. Not that i could complain about my 4670K, as it does 4.7 stable and is benchable up to 4.9, all on air. My 3570K on the other hand was not really that strong, mediocre cores, weak imc. Probably everybody gets one of those eventually... and you could always just sell it and go next^^

Yeah i had one of those myself. Not that i could complain about my 4670K, as it does 4.7 stable and is benchable up to 4.9, all on air. My 3570K on the other hand was not really that strong, mediocre cores, weak imc. Probably everybody gets one of those eventually... and you could always just sell it and go next^^

Yeah I got a ROG Hero VII and i'm waithing for 5th gen for now.