- Aug 30, 2017
- 247
- 32
- 10,990
Hello yall, I currently resumed plans to put together new rig prevously paused by wait for new coffee lake cpus to kick in. I pretty much have everything but memory and I noticed something I just do not understand while trying to pick one.
Nearly all ddr4s available in shops have very high speed reaching and sometimes surpassing 4000 mhz but at the same time their cas latency seems to ekhm ... suck ass varying from 13 to 19.
Could someone explain how so and should I start looking less on the cl and more on mhz? By all means I'm no expert, also it has been almost a decade since I put together my current rig so I sure as hell am rusty. I use to apply simple "highest mhz&lowest cl possible" rule or judge sticks based on equation I kept seeing and hearing all around being 1/mhz*cl and whichever stick has a lower result is supposedly better.
That would mean that throughout mems I browse currently Corsair Dominator Platinum (CMD32GX4M4B2400C10) that costs around 588$ is actually better then G.Skill Trident Z (F4-4133C19Q-32GTZKKF) which costs 47% more at 865$.
Pursuing the subject I found fps comparison, from while ago but pretty much same deal, made by someone with corsair mems 2x8GB 2400Mhz CL15, 2x8GB 2400Mhz CL10, 2x8GB 2800Mhz CL11, 2x8GB 3200Mhz CL13, 2x8GB 3600Mhz CL15 on rig:
i7 6700K 3.7/3.7Ghz
Asrock Z170 Extreme 4
ZOTAC GeForce GTX 1070 Ti 8GB AMP! EXTREME
Playing 1920x1080 max settings winner was 3600Mhz CL15 with 97 fps in Skyrim and 50 fps in Crysis 3 but 2400Mhz CL10 reached same in Skyrim and only 1 fps less in Crysis 3.
What's the point of buying high speed ram for almost 50 % more if almost half as fast one (on paper) with lower cl is doing the same thing? Considering you can find one that is.
Nearly all ddr4s available in shops have very high speed reaching and sometimes surpassing 4000 mhz but at the same time their cas latency seems to ekhm ... suck ass varying from 13 to 19.
Could someone explain how so and should I start looking less on the cl and more on mhz? By all means I'm no expert, also it has been almost a decade since I put together my current rig so I sure as hell am rusty. I use to apply simple "highest mhz&lowest cl possible" rule or judge sticks based on equation I kept seeing and hearing all around being 1/mhz*cl and whichever stick has a lower result is supposedly better.
That would mean that throughout mems I browse currently Corsair Dominator Platinum (CMD32GX4M4B2400C10) that costs around 588$ is actually better then G.Skill Trident Z (F4-4133C19Q-32GTZKKF) which costs 47% more at 865$.
Pursuing the subject I found fps comparison, from while ago but pretty much same deal, made by someone with corsair mems 2x8GB 2400Mhz CL15, 2x8GB 2400Mhz CL10, 2x8GB 2800Mhz CL11, 2x8GB 3200Mhz CL13, 2x8GB 3600Mhz CL15 on rig:
i7 6700K 3.7/3.7Ghz
Asrock Z170 Extreme 4
ZOTAC GeForce GTX 1070 Ti 8GB AMP! EXTREME
Playing 1920x1080 max settings winner was 3600Mhz CL15 with 97 fps in Skyrim and 50 fps in Crysis 3 but 2400Mhz CL10 reached same in Skyrim and only 1 fps less in Crysis 3.
What's the point of buying high speed ram for almost 50 % more if almost half as fast one (on paper) with lower cl is doing the same thing? Considering you can find one that is.
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