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Is there a rule of thumb for calculating tRAS for DDR4?

I remember when I overclocked my DDR3 kit, there was a rule where you added up the first 3 timings and subtract by something to get a rough idea of what to change your tRAS to (4th timing) to save time testing.  

Is there something like that people do for DDR4?

Otherwise, I'll just spend more time working the timings and testing I guess. 

Memory overclocking is so tedious so it's worth asking anyways.

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@Jumper118 might have more input on this.

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24 minutes ago, stateofpsychosis said:

I remember when I overclocked my DDR3 kit, there was a rule where you added up the first 3 timings and subtract by something to get a rough idea of what to change your tRAS to (4th timing) to save time testing.  

Is there something like that people do for DDR4?

Otherwise, I'll just spend more time working the timings and testing I guess. 

Memory overclocking is so tedious so it's worth asking anyways.

the timings i've been using for b-die is basically the same as the b-die kits sold on newegg, but with higher speeds, 14-14-14-34 at 3466 or 3600, 15-15-15-35 at 3733, 16-16-16-36 at 4000, and 17-17-17-37 at 4133.

 

for hynix dies i'd imagine the timings are looser and not as uniformal.

 

for current cpus i like 3600-4000, if you are lucky enough for a zen+ that does 4000+, grats.

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5 hours ago, stateofpsychosis said:

I remember when I overclocked my DDR3 kit, there was a rule where you added up the first 3 timings and subtract by something to get a rough idea of what to change your tRAS to (4th timing) to save time testing.  

Is there something like that people do for DDR4?

Otherwise, I'll just spend more time working the timings and testing I guess. 

Memory overclocking is so tedious so it's worth asking anyways.

there is not really any rules tbh. i normally run c12-11-11-28 or 14-14-14-32. 

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8 hours ago, xg32 said:

the timings i've been using for b-die is basically the same as the b-die kits sold on newegg, but with higher speeds, 14-14-14-34 at 3466 or 3600, 15-15-15-35 at 3733, 16-16-16-36 at 4000, and 17-17-17-37 at 4133.

 

for hynix dies i'd imagine the timings are looser and not as uniformal.

 

for current cpus i like 3600-4000, if you are lucky enough for a zen+ that does 4000+, grats.

Yea, I kind of wish I would have sprung for a 3600mhz kit now.

I bought a 3200 kit for a really good deal instead.

How much of a difference would a 3600mhz kit make for gaming anyways though right?

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6 hours ago, stateofpsychosis said:

Yea, I kind of wish I would have sprung for a 3600mhz kit now.

I bought a 3200 kit for a really good deal instead.

How much of a difference would a 3600mhz kit make for gaming anyways though right?

not much honestly compared to ddr3200, 2% at most on the top end, and only if the cpu's the bottleneck (100->102fps), there's a good chance the 1% lows goes up a little.

5950x 1.33v 5.05 4.5 88C 195w ll R20 12k ll drp4 ll x570 dark hero ll gskill 4x8gb 3666 14-14-14-32-320-24-2T (zen trfc)  1.45v 45C 1.15v soc ll 6950xt gaming x trio 325w 60C ll samsung 970 500gb nvme os ll sandisk 4tb ssd ll 6x nf12/14 ippc fans ll tt gt10 case ll evga g2 1300w ll w10 pro ll 34GN850B ll AW3423DW

 

9900k 1.36v 5.1avx 4.9ring 85C 195w (daily) 1.02v 4.3ghz 80w 50C R20 temps score=5500 ll D15 ll Z390 taichi ult 1.60 bios ll gskill 4x8gb 14-14-14-30-280-20 ddr3666bdie 1.45v 45C 1.22sa/1.18 io  ll EVGA 30 non90 tie ftw3 1920//10000 0.85v 300w 71C ll  6x nf14 ippc 2000rpm ll 500gb nvme 970 evo ll l sandisk 4tb sata ssd +4tb exssd backup ll 2x 500gb samsung 970 evo raid 0 llCorsair graphite 780T ll EVGA P2 1200w ll w10p ll NEC PA241w ll pa32ucg-k

 

prebuilt 5800 stock ll 2x8gb ddr4 cl17 3466 ll oem 3080 0.85v 1890//10000 290w 74C ll 27gl850b ll pa272w ll w11

 

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Just now, xg32 said:

not much honestly compared to ddr3200, 2% at most on the top end, and only if the cpu's the bottleneck (100->102fps)

Yea, so pretty much just for bragging rights. The 3600 stuff was a lot more expensive here so I guess I can feel good about my purchase.

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