AMD EPYC 7643P vs Xeon E7 4820
We compared two server CPUs: AMD EPYC 7643P with 48 cores 2.3GHz and Xeon E7 4820 with 8 cores 2GHz . You will find out which processor performs better in benchmark tests, key specifications, power consumption and more.
Main Differences
AMD EPYC 7643P 's Advantages
Released 12 years and 5 months late
Higher specification of memory (3200 vs 1333)
Higher base frequency (2.3GHz vs 2GHz)
Larger L3 cache size (256MB vs 18MB)
More modern manufacturing process (7nm vs 32nm)
Xeon E7 4820 's Advantages
Lower TDP (105W vs 225W)
Score
Benchmark
Geekbench 6 Single Core
AMD EPYC 7643P
+231%
1420
Xeon E7 4820
428
Geekbench 6 Multi Core
AMD EPYC 7643P
1431
Xeon E7 4820
+120%
3151
General Parameters
Sep 2023
Release Date
Apr 2011
AMD
Manufacturer
Intel
Server
Type
Server
Milan
Core Architecture
Westmere-EX
AMD Socket SP3
Socket
Intel Socket 1567
N/A
Integrated Graphics
N/A
EPYC (Zen 3 (Milan))
Generation
Xeon E7(Westmere-EX)
Package
33.2 billions
Transistor Count
2.6 billions
7 nm
Manufacturing Process
32 nm
225 W
Power Consumption
105 W
TSMC
Foundry
Intel
8x81 mm²
Die Size
513 mm²
12 nm
I/O Process Size
-
416 mm²
I/O Die Size
-
CPU Performance
2.3 GHz
Performance Core Base Frequency
2 GHz
3.6 GHz
Performance Core Turbo Frequency
2.266 GHz
48
Total Core Count
8
96
Total Thread Count
16
100 MHz
Bus Frequency
133 MHz
23.0
Multiplier
15.0
64 KB per core
L1 Cache
64 KB per core
512 KB per core
L2 Cache
256 KB per core
256 MB shared
L3 Cache
18 MB shared
No
Unlocked Multiplier
No
8
Cores per CCD
-
1
SMP
4
Memory Parameters
DDR4-3200
Memory Types
DDR3-1333
8
Max Memory Channels
4
Yes
ECC Memory Support
Yes
Miscellaneous
4
PCIe Version
-
128
PCIe Lanes
-
