AMD EPYC 7281 vs Xeon 6543P B
We compared two server CPUs: AMD EPYC 7281 with 16 cores 2.1GHz and Xeon 6543P B with 32 cores 2GHz . You will find out which processor performs better in benchmark tests, key specifications, power consumption and more.
Main Differences
AMD EPYC 7281 's Advantages
Higher base frequency (2.1GHz vs 2GHz)
Xeon 6543P B 's Advantages
Released 7 years and 8 months late
Higher specification of memory (5600 vs 2666)
Newer PCIe version (5 vs 3)
Larger L3 cache size (128MB vs 32MB)
More modern manufacturing process (5nm vs 14nm)
Lower TDP (160W vs 170W)
Score
General Parameters
Jun 2017
Release Date
Feb 2025
AMD
Manufacturer
Intel
Server
Type
Server
Naples
Core Architecture
Granite Rapids
AMD Socket SP3
Socket
Intel BGA 4368
N/A
Integrated Graphics
N/A
EPYC (Zen (Naples))
Generation
Xeon 6 (Granite Rapids-D)
Package
4.8 billions
Transistor Count
-
14 nm
Manufacturing Process
5 nm
170 W
Power Consumption
160 W
85 °C
Peak Operating Temperature
-
GlobalFoundries
Foundry
Intel
213 mm²
Die Size
598 mm²
-
I/O Process Size
10 nm
CPU Performance
2.1 GHz
Performance Core Base Frequency
2 GHz
2.7 GHz
Performance Core Turbo Frequency
3.3 GHz
16
Total Core Count
32
32
Total Thread Count
64
100 MHz
Bus Frequency
100 MHz
21.0
Multiplier
20.0
96 K per core
L1 Cache
112 KB per core
512 K per core
L2 Cache
2 MB per core
32 MB shared
L3 Cache
128 MB shared
Yes
Unlocked Multiplier
No
2
SMP
1
-
AVX-512 FMA Ports
2
Memory Parameters
DDR4-2666
Memory Types
DDR5-5600
-
Max Memory Size
1.13 TB
8
Max Memory Channels
4
Yes
ECC Memory Support
Yes
Miscellaneous
3
PCIe Version
5
-
PCIe Lanes
32
