CPU Comparison
AMD
AMD EPYC 7643
CORE STATE
Milan
CORE SPECS
48 Cores / 96 Threads
CLOCK SPEED
2.3 Base / 3.6 GHz Turbo
CACHE
256 MB (shared)
MAX TDP
225W
ARCHITECTURE
Zen 3
PROCESS
7 nm
LAUNCH DATE
2021
VS
AMD
EPYC 9255
CORE STATE
Turin
CORE SPECS
24 Cores / 48 Threads
CLOCK SPEED
3.25 Base / 4.8 GHz Turbo
CACHE
128 MB (shared)
MAX TDP
200W
ARCHITECTURE
Zen 5
PROCESS
4 nm
LAUNCH DATE
2024
PERFORMANCE BENCHMARKS
cinebench_cinebench_r15_multicore
cinebench_cinebench_r15_singlecore
cinebench_cinebench_r20_multicore
cinebench_cinebench_r20_singlecore
cinebench_cinebench_r23_multicore
cinebench_cinebench_r23_singlecore
DETAILED SPECIFICATIONS
SPECIFICATION
EPYC 7643
EPYC 9255
Core Specs
Cores
48
24
-50.0%
Threads
96
48
-50.0%
Base Clock (GHz)
2.3
3.25
+41.3%
Boost Clock (GHz)
3.6
4.8
+33.3%
Frequency (GHz)
2.3
3.25
+41.3%
Turbo Clock (GHz)
3.6
4.8
+33.3%
Multiplier
23
32.5
+41.3%
SMP CPUs
2
2
0.0%
Cache
L1 Cache
64 KB (per core)
80 KB (per core)
L2 Cache
512 KB (per core)
1 MB (per core)
L3 Cache
256 MB (shared)
128 MB (shared)
Power
TDP (W)
225
200
-11.1%
Configurable TDP
240 W
200-240 W
Architecture
Architecture
Zen 3
Zen 5
Codename
Milan
Turin
Generation
EPYC
(Zen 3 (Milan))
EPYC
(Zen 5 (Turin))
Process Size
7 nm
4 nm
Transistors
33,200 million
33,260 million
Die Size
8x 81 mm²
4x 70.6 mm²
Foundry
TSMC
TSMC
Memory
Memory Support
DDR4
DDR5
Memory Bus
Eight-channel
Twelve-channel
Memory Bandwidth
204.8 GB/s
576.0 GB/s
ECC Memory
Yes
Yes
Platform
Socket
AMD Socket SP3
AMD Socket SP5
PCIe
Gen 4, 128 Lanes(CPU only)
Gen 5, 128 Lanes(CPU only)
AMD Multi-Die
CCDs
8
—
Cores per CCD
6
—
IO Process Size
12 nm
6 nm
Interconnect
CXL
—
Gen 2.0
Other
Market
Server/Workstation
Server/Workstation
Production Status
Active
Active
Launch Price
$4995
$2495
Part Number
100-000000326100-100000326WOF
100-000000694
Package
FCLGA-4094
FC-LGA6096