Which DDR4 ICs clock the highest at 1.2 volts?

[brainfried]

For you ram experts: One of systems is an Asus G15 AMD Advantage that I use as a travel gaming rig. Because I can't help myself, I'm going to overclock the memory in it. But, I don't want to raise the memory voltage because I can't imagine the memory power delivery having a lot of overhead available.

Which ICs should get me to the highest clock speeds with 1.2 volts? I understand that I may have to loosen the timings to achieve higher speeds. The infinity fabric can clock pretty high on these Ryzen SoCs, so I should be able to get some nice latency reductions from clocking that as high as the memory will go with a 1:1 ratio. From my research, it seems like Hynix CJR, DJR, and Micron E-die are the most promising candidates.

Thanks!

 

[dasa]

Not sure which DDR5 clocks best with low V but the power use will only be a few watt so I doubt the VRM will have any trouble.

One of the things I love about overclocking RAM you get all that performance for bugger all change in power use.

 

[riev90]

DDR4 max save daily voltage is 1.6v, and it will require fan if the memory is under 90~95% load.
At that voltage:
1. hynix DJR can go up to 5200mhz on Intel platform (gen 10/11/12/13)
2. micron B/E-Die could also go up to 5200mhz, also on Intel platform (gen 10/11/12/13)
3. Samsung B-Die could go up to 4533 with CAS 16/18 on Intel platform (gen 10/11/12/13) and ryzen (cezanne / renoir)
YMMV based on your procie IMC