AMD EPYC 7643P vs Xeon L5420
We compared two server CPUs: AMD EPYC 7643P with 48 cores 2.3GHz and Xeon L5420 with 4 cores 2.5GHz . 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 15 years and 6 months late
Higher specification of memory (3200 vs 3)
Newer PCIe version (4 vs 2)
More modern manufacturing process (7nm vs 45nm)
Xeon L5420 's Advantages
Higher base frequency (2.5GHz vs 2.3GHz)
Lower TDP (50W vs 225W)
Score
Benchmark
Geekbench 6 Single Core
AMD EPYC 7643P
+282%
1420
Xeon L5420
371
Geekbench 6 Multi Core
AMD EPYC 7643P
+28%
1431
Xeon L5420
1110
General Parameters
Sep 2023
Release Date
Mar 2008
AMD
Manufacturer
Intel
Server
Type
Server
Milan
Core Architecture
Harpertown
AMD Socket SP3
Socket
Intel Socket 771
N/A
Integrated Graphics
N/A
EPYC (Zen 3 (Milan))
Generation
Xeon (Harpertown)
Package
33.2 billions
Transistor Count
0.82 billions
7 nm
Manufacturing Process
45 nm
225 W
Power Consumption
50 W
TSMC
Foundry
Intel
8x81 mm²
Die Size
2x107 mm²
12 nm
I/O Process Size
-
416 mm²
I/O Die Size
-
CPU Performance
2.3 GHz
Performance Core Base Frequency
2.5 GHz
3.6 GHz
Performance Core Turbo Frequency
0
48
Total Core Count
4
96
Total Thread Count
4
100 MHz
Bus Frequency
333 MHz
23.0
Multiplier
7.5
64 KB per core
L1 Cache
64 KB per core
512 KB per core
L2 Cache
6 MB per die
256 MB shared
L3 Cache
-
No
Unlocked Multiplier
No
8
Cores per CCD
-
1
SMP
2
Memory Parameters
DDR4-3200
Memory Types
DDR2, DDR3
Depends on motherboard
8
Max Memory Channels
2
Yes
ECC Memory Support
Yes
Miscellaneous
4
PCIe Version
2
128
PCIe Lanes
-
