AMD EPYC Turin 128 Core Comparison: EPYC 9745 "Zen 5C" vs. EPYC 9755 "Zen 5"

Written by Michael Larabel in Processors on 2 March 2026 at 04:41 PM EST. Page 6 of 9. 14 Comments.
QuantLib benchmark with settings of Size: S. EPYC 9755 was the fastest.
QuantLib benchmark with settings of Size: S. EPYC 9755 was the fastest.
QuantLib benchmark with settings of Size: S. EPYC 9755 was the fastest.
LAMMPS Molecular Dynamics Simulator benchmark with settings of Model: 61k Atoms. EPYC 9755 was the fastest.
LAMMPS Molecular Dynamics Simulator benchmark with settings of Model: 61k Atoms. EPYC 9755 was the fastest.
LAMMPS Molecular Dynamics Simulator benchmark with settings of Model: 61k Atoms. EPYC 9755 was the fastest.

Pulling the EPYC 9745 back to its lowest custom TDP didn't sacrifice too much performance but delivered a nice boost to the performance-per-Watt.

GROMACS benchmark with settings of Implementation: MPI CPU, Input: water_GMX50_bare. EPYC 9755 was the fastest.
GROMACS benchmark with settings of Implementation: MPI CPU, Input: water_GMX50_bare. EPYC 9755 was the fastest.
GROMACS benchmark with settings of Implementation: MPI CPU, Input: water_GMX50_bare. EPYC 9755 was the fastest.
NAMD benchmark with settings of Input: STMV with 1,066,628 Atoms. EPYC 9755 was the fastest.
NAMD benchmark with settings of Input: STMV with 1,066,628 Atoms. EPYC 9755 was the fastest.
NAMD benchmark with settings of Input: STMV with 1,066,628 Atoms. EPYC 9755 was the fastest.
WRF benchmark with settings of Input: conus 2.5km. EPYC 9755 was the fastest.
WRF benchmark with settings of Input: conus 2.5km. EPYC 9755 was the fastest.
WRF benchmark with settings of Input: conus 2.5km. EPYC 9755 was the fastest.
OpenFOAM benchmark with settings of Input: drivaerFastback, Large Mesh Size, Execution Time. EPYC 9755 was the fastest.
OpenFOAM benchmark with settings of Input: drivaerFastback, Large Mesh Size, Execution Time. EPYC 9755 was the fastest.
OpenFOAM benchmark with settings of Input: drivaerFastback, Large Mesh Size, Execution Time. EPYC 9755 was the fastest.

It was quite interesting being able to compare AMD EPYC Turin at the same core/thread count with both the full-fat and dense core configurations.

Related Articles
NVIDIA Vera SMT Performance Benchmarks
Intel Granite Rapids WS vs. AMD Threadripper Zen 5 SMT Performance
Intel Xeon 600 Workstation Performance vs. AMD Threadripper 9000 In Nearly 400 Benchmarks
Intel Granite Rapids WS Core Scaling Performance With The Xeon 678X
Intel Hyper Threading Performance On The Xeon 678X "Granite Rapids-WS"
Intel AMX Performance With The Xeon 678X Workstation CPU