CPU Comparison
AMD
AMD EPYC 7642
CORE STATE
Rome
CORE SPECS
48 Cores / 96 Threads
CLOCK SPEED
2.4 Base / 3.4 GHz Turbo
CACHE
256 MB (shared)
MAX TDP
225W
ARCHITECTURE
Zen 2
PROCESS
7 nm
LAUNCH DATE
2019
VS
AMD
EPYC 8434P
CORE STATE
Siena
CORE SPECS
48 Cores / 96 Threads
CLOCK SPEED
2.5 Base / 3.1 GHz Turbo
CACHE
128 MB (shared)
MAX TDP
200W
ARCHITECTURE
Zen 4c
PROCESS
5 nm
LAUNCH DATE
2023
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
passmark_data_compression
passmark_data_encryption
passmark_extended_instructions
passmark_find_prime_numbers
passmark_floating_point_math
passmark_integer_math
passmark_multithread
passmark_physics
passmark_random_string_sorting
passmark_single_thread
passmark_singlethread
DETAILED SPECIFICATIONS
SPECIFICATION
EPYC 7642
EPYC 8434P
Core Specs
Cores
48
48
0.0%
Threads
96
96
0.0%
Base Clock (GHz)
2.4
2.5
+4.2%
Boost Clock (GHz)
3.4
3.1
-8.8%
Frequency (GHz)
2.4
2.5
+4.2%
Turbo Clock (GHz)
3.4
3.1
-8.8%
Multiplier
24
25
+4.2%
SMP CPUs
2
1
-50.0%
Cache
L1 Cache
96 KB (per core)
64 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
—
155-225 W
Architecture
Architecture
Zen 2
Zen 4c
Codename
Rome
Siena
Generation
EPYC
(Zen 2 (Rome))
EPYC
(Zen 4c (Siena))
Process Size
7 nm
5 nm
Transistors
3,800 million
35,500 million
Die Size
74 mm²
4x 73 mm²
Foundry
TSMC
TSMC
Memory
Memory Support
DDR4
DDR5
Memory Bus
Eight-channel
Six-channel
Memory Bandwidth
204.8 GB/s
230.4 GB/s
ECC Memory
Yes
Yes
Platform
Socket
AMD Socket SP3
AMD Socket SP6
PCIe
Gen 4
Gen 5, 96 Lanes(CPU only)
AMD Multi-Die
IO Process Size
—
6 nm
Other
Market
Server/Workstation
Server/Workstation
Production Status
Active
Active
Launch Price
—
$2700
Part Number
100-000000074
100-000000877
Package
FCLGA-4094
FC-LGA4844
Bundled Cooler
—
None