Memory for the speed junkies

[Mrcapdown]

Advice please!

We all go for the highest MHz with memory but I feel the latency is probably as important if not more important. 

So with that in mind what is the lowest latency DDR4 memory on the market?

 

I have 16gb of Corsair LPX Vengeance 2400MHZ and 8gb of Corsair LPX Vengeance 2666MHZ. So basically 24gb running at 2400MHZ.

 

I realisticly don't that much.

So I'm thinking of selling it all and buying 8gb of the best money can buy.

 

Just looking for peoples opinions on this and recommendations for super low latency and super high frequency memory.

 

Thanks in advance

[nick name]

Don't forget about bandwidth, but yeah I love me some low latencies. I am running the G.SKILL TridentZ 3600CL15 2x8GB kit. I got it at $263 but have seen it as low as $235.

[Jurrunio]

but isnt 8GB too little? 16GB should be better.

 

Also, fast memory for showing off, benchmarks or price to performance?

[nick name]

4 minutes ago, Jurrunio said:

but isnt 8GB too little? 16GB should be better.

 

Also, fast memory for showing off, benchmarks or price to performance?

Also don't forget you want two sticks for dual channel. 

[Froody129]

Not 8Gb. It's not quite enough to be comfortable anymore. Don't drop too much on RAM. Diminishing returns are a real thing 

[chckovsky]

You're looking for anything with good Samsung B-die. Most kits that are 3200MHz CL14 are.

 

https://benzhaomin.github.io/bdiefinder/

[Fasauceome]

Here's how latency in milliseconds is calculated:

latency multiplier * (1/(clock speed/2))

lower latency is achieved by higher frequency, so with cas15 on a ddr4 3200 chip, you have 15*(1/(3200000000/2)) which is .00000000938

with cas 12 on ddr4 2600, you get 12*(1/(2600000000/2)), which is .00000000923

in this case, you can see the 2600 only has a slight advantage, so lowering latency on a high clocked dimm rather than raising frequency on a lower latency dimm might be easier.

[Mrcapdown]

16 minutes ago, fasauceome said:

Here's how latency in milliseconds is calculated:

latency multiplier * (1/(clock speed/2))

lower latency is achieved by higher frequency, so with cas15 on a ddr4 3200 chip, you have 15*(1/(3200000000/2)) which is .00000000938

with cas 12 on ddr4 2600, you get 12*(1/(2600000000/2)), which is .00000000923

in this case, you can see the 2600 only has a slight advantage, so lowering latency on a high clocked dimm rather than raising frequency on a lower latency dimm might be easier.

I would like to think I'm a little more advanced than your normal computer gamer/general bulider but unless I'm not reading this right to get a comprehension of a hat you're saying this might be a littk advanced fo me. Could you explain in less advanced terms?

[Fasauceome]

4 minutes ago, Mrcapdown said:

I would like to think I'm a little more advanced than your normal computer gamer/general bulider but unless I'm not reading this right to get a comprehension of a hat you're saying this might be a littk advanced fo me. Could you explain in less advanced terms?

math says cl12 2600 is as fast as cl15 3200 in terms of column access (cas stands for column access strobe.) latency in real time is therefore almost the same on those 2 kits of ram, despite their wildly different specs. taking a cl15 dimm down to cl14 in bios seems easier than taking 2600 ram to 3000, depending on die quality of course.

[Mrcapdown]

36 minutes ago, fasauceome said:

math says cl12 2600 is as fast as cl15 3200 in terms of column access (cas stands for column access strobe.) latency in real time is therefore almost the same on those 2 kits of ram, despite their wildly different specs. taking a cl15 dimm down to cl14 in bios seems easier than taking 2600 ram to 3000, depending on die quality of course.

Right I understand. Thank yiu