Which is better for Monero mining: AMD Threadripper or Intel i9 7900x?

Question

I have seen a lot of reviews of this two processors but they have focused on movie editing, videogames, compresion, etc. But I haven't seen a good benchmark particularly on monero mining. I know that is depends on a lot of external factors too, but only in terms of processing power and how to handle threads, temperature, etc. which on is better?

Answer 1

AMD Threadripper is clearly better. Take a look at this german article. If you don't understand german, take a look at the table with the number of threads. The more threads the better.

On the second page you will then see the relevant charts

Here are the details from that article

Cache size and optimal number of threads

CPU                             L2-Cache    L3-Cache    Optimal # Threads
AMD Ryzen 3 1200                2 MB        8 MB        4
AMD Ryzen 5 1600X               3 MB        16 MB       8
AMD Ryzen 7 1800X               4 MB        16 MB       8
AMD Ryzen Threadripper 1920X    6 MB        32 MB       16
AMD Ryzen Threadripper 1950X    9 MB        32 MB       16
Intel Core i7-7700K             1 MB        8 MB        4
Intel Core i7-8700K             1,5 MB      8 MB        6
Intel Core i9-7900X             10 MB       13,75 MB    10

Hashes per Second

CPU                                 H/s
AMD Ryzen Threadripper 1920X        1.139
AMD Ryzen Threadripper 1950X        1.009
Intel Core i9-7900X                 533
AMD Ryzen 7 1800X                   495
AMD Ryzen 5 1600X                   429
Intel Core i7-8700K                 339
Intel Core i7-7700K                 218
AMD Ryzen 3 1200                    197

Power consumption in Watt

CPU                                 Watt
AMD Ryzen 3 1200                    21
Intel Core i7-7700K                 27
AMD Ryzen 5 1600X                   48
Intel Core i7-8700K                 52
AMD Ryzen 7 1800X                   58
AMD Ryzen Threadripper 1920X        69
Intel Core i9-7900X                 80
AMD Ryzen Threadripper 1950X        87

Hashes per Watt

CPU                             H/s
AMD Ryzen Threadripper 1920X    14,6
AMD Ryzen Threadripper 1950X    13,1
AMD Ryzen 3 1200                9,4
AMD Ryzen 5 1600X               8,9
AMD Ryzen 7 1800X               8,5
Intel Core i7-7700K             8,1
Intel Core i9-7900X             6,7
Intel Core i7-8700K             6,5