Xeon L5420 vs AMD EPYC 7643
We compared two server CPUs: Xeon L5420 with 4 cores 2.5GHz and AMD EPYC 7643 with 48 cores 2.3GHz . You will find out which processor performs better in benchmark tests, key specifications, power consumption and more.
Main Differences
Xeon L5420 's Advantages
Higher base frequency (2.5GHz vs 2.3GHz)
Lower TDP (50W vs 225W)
AMD EPYC 7643 's Advantages
Released 13 years late
Higher specification of memory (3200 vs 3)
Newer PCIe version (4 vs 2)
More modern manufacturing process (7nm vs 45nm)
Score
Benchmark
Geekbench 6 Single Core
Xeon L5420
371
AMD EPYC 7643
+357%
1696
Geekbench 6 Multi Core
Xeon L5420
1110
AMD EPYC 7643
+795%
9939
General Parameters
Mar 2008
Release Date
Mar 2021
Intel
Manufacturer
AMD
Server
Type
Server
Harpertown
Core Architecture
Milan
Intel Socket 771
Socket
AMD Socket SP3
N/A
Integrated Graphics
N/A
Xeon (Harpertown)
Generation
EPYC (Zen 3 (Milan))
Package
0.82 billions
Transistor Count
33.2 billions
45 nm
Manufacturing Process
7 nm
50 W
Power Consumption
225 W
Intel
Foundry
TSMC
2x107 mm²
Die Size
8x81 mm²
-
I/O Process Size
12 nm
-
I/O Die Size
416 mm²
CPU Performance
2.5 GHz
Performance Core Base Frequency
2.3 GHz
0
Performance Core Turbo Frequency
3.6 GHz
4
Total Core Count
48
4
Total Thread Count
96
333 MHz
Bus Frequency
100 MHz
7.5
Multiplier
23.0
64 KB per core
L1 Cache
64 KB per core
6 MB per die
L2 Cache
512 KB per core
-
L3 Cache
256 MB shared
No
Unlocked Multiplier
No
-
Cores per CCD
6
2
SMP
2
Memory Parameters
DDR2, DDR3
Depends on motherboard
Memory Types
DDR4-3200
2
Max Memory Channels
8
Yes
ECC Memory Support
Yes
Miscellaneous
2
PCIe Version
4
-
PCIe Lanes
128
