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AMD Ryzen Threadripper 1950X and 1920X CPU Review

By Steven Bassiri from Aug 10, 2017 @ 8:00 CDT
TweakTown Rating: 91%Manufacturer: AMD

All CPUs are tested with Out of the Box Performance, which means that no settings were altered, so basically default CPU and RAM speeds. AMD's default mode is UMA/Distributed/Creator operation mode, where the memory is wide, so I also tested the 1950X in Gamer's mode, which makes the memory local and disables one of the dies, so it makes it basically a 1800X (8c/16t) with quad channel memory.


I also tested both the 1920X and 1950X with "AMD Optimized," which means memory speed of 2666MHz as stated on AMD's official CPU specifications.













CINEBENCH R11.5 had to be removed from our benchmark results as it seems to be bugged with the new CPUs; the last set of tiles takes forever to render, but R15 has no issues. CINEBENCH is not very memory reactive, but we do see slightly bumps with higher memory speeds. The 1950X is almost a 1800X in Gamer Mode, which disables one die, so it runs 8 cores/16 threads with quad channel memory. We do see single thread performance is slightly better than the 1800X (perhaps because of the higher XFR), but it's still behind Intel's.


CINEBENCH and wPrime results display how powerful the new Threadripper CPUs are if you need more cores and threads, Threadripper is what you want. FPU tests show the same trend as before, and AIDA64 greatly reduces Skylake-X's highly inflated scores, so they are now more comparable to AMD's offerings.


AMD offers excellent 64-bit Integer IOPS, while Intel still holds onto the SP-FLOPs title. Memory bandwidth is excellent when we increase memory speeds on Thread Ripper to 2666MHz, as it also increases fabric speed. We can see how Gamer Mode greatly reduces memory latency from 117.9ns to 88.8ns on the 1920X, but we also see that memory bandwidth takes a little hit.

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