[martinh]

Ryzen has just released its new Zen 4 CPUs, including the fastest 7950X.

Would you have any insights as to how these could help in CFD work particularly compared to its closest (workstation) competitors, particularly the AMD Threadripper Pros?

I've long been eyeing a 5965WX Threadripper Pro but this one costs $2300 and a compatible motherboard costs $1000 which is quite expensive. This one has 26 cores and 8 memory channels of DDR4 to feed those (my preferred machine would have 128GB of RAM at minimum).

At the same time the new Ryzen 7950X with 16 cores can be fed by 128GB of DDR5 memory. It has larger caches than its predecessor (e.g. 5950x) but at the same time with 128GB of RAM the base clock speed goes down to 3600 MT/s (I've seen some posts reaching 4200 after lots of struggling...) given that it has only 2 memory channels and you'd need 4 sticks of 32GB DDR5 RAM currently. So it seems only 50 GB/s of bandwidth in total in the end.... Would e.g. the larger cache alleviate some of this in this respect?

Also any chance of 64GB DDR5 memory sticks - with decent speed - coming in the future? AMD said the ideal would be 6000 MT/s for its CPU - so you could reach 128GB of RAM with about 120GB/s memory bandwidth at some point?

Highly appreciate all your insights - I am very new to this. Thank you!

EDIT: some SPEC benchmarks here:

https://www.anandtech.com/show/17585...he-high-end/12

And comparable benchmarks here for M1 Max:

https://www.anandtech.com/show/17024...mance-review/5

and Intel Xeon 3rd gen:

https://www.anandtech.com/show/16594...lable-review/6