AMD EPYC 9455P vs Xeon 6556P B
We compared two server CPUs: AMD EPYC 9455P with 48 cores 3.15GHz and Xeon 6556P B with 36 cores 2.3GHz . You will find out which processor performs better in benchmark tests, key specifications, power consumption and more.
Main Differences
AMD EPYC 9455P 's Advantages
Higher base frequency (3.15GHz vs 2.3GHz)
Larger L3 cache size (192MB vs 144MB)
More modern manufacturing process (4nm vs 5nm)
Xeon 6556P B 's Advantages
Higher specification of memory (6400 vs 6000)
Lower TDP (215W vs 300W)
Score
General Parameters
Oct 2024
Release Date
Feb 2025
AMD
Manufacturer
Intel
Server
Type
Server
Turin
Core Architecture
Granite Rapids
AMD Socket SP5
Socket
Intel BGA 4368
N/A
Integrated Graphics
N/A
EPYC (Zen 5 (Turin))
Generation
Xeon 6 (Granite Rapids-D)
Package
Transistor Count
-
4 nm
Manufacturing Process
5 nm
300 W
Power Consumption
215 W
TSMC
Foundry
Intel
mm²
Die Size
598 mm²
6 nm
I/O Process Size
10 nm
mm²
I/O Die Size
-
CPU Performance
48
Performance Cores
-
96
Performance Core Threads
-
3.15 GHz
Performance Core Base Frequency
2.3 GHz
4.4 GHz
Performance Core Turbo Frequency
3.5 GHz
48
Total Core Count
36
96
Total Thread Count
72
100 MHz
Bus Frequency
100 MHz
31.5
Multiplier
23.0
64 KB per core
L1 Cache
112 KB per core
1 MB per core
L2 Cache
2 MB per core
192 MB
L3 Cache
144 MB shared
No
Unlocked Multiplier
No
1
SMP
2
-
AVX-512 FMA Ports
2
Memory Parameters
DDR5-6000
Memory Types
DDR5-6400
6 TB
Max Memory Size
1.13 TB
12
Max Memory Channels
4
576 GB/s
Max Memory Bandwidth
-
Yes
ECC Memory Support
Yes
