Intel Xeon E5645 vs EPYC 4565P
We compared two server CPUs: Intel Xeon E5645 with 6 cores 2.4GHz and EPYC 4565P with 16 cores 4.3GHz . You will find out which processor performs better in benchmark tests, key specifications, power consumption and more.
Main Differences
Intel Xeon E5645 's Advantages
Lower TDP (80W vs 170W)
EPYC 4565P 's Advantages
Released 15 years and 2 months late
Higher specification of memory (5600 vs 3)
Newer PCIe version (5 vs 2)
Higher base frequency (4.3GHz vs 2.4GHz)
Larger L3 cache size (64MB vs 12MB)
More modern manufacturing process (4nm vs 32nm)
Score
Benchmark
Geekbench 6 Single Core
Intel Xeon E5645
425
EPYC 4565P
+701%
3408
Geekbench 6 Multi Core
Intel Xeon E5645
3117
EPYC 4565P
+509%
19008
General Parameters
Mar 2010
Release Date
May 2025
Intel
Manufacturer
AMD
Server
Type
Server
Westmere-EP
Core Architecture
Grado
Intel Socket 1366
Socket
AMD Socket AM5
N/A
Integrated Graphics
Radeon Graphics
Xeon (Westmere-EP)
Generation
EPYC (Zen 5 (Grado))
Package
1.17 billions
Transistor Count
16.63 billions
32 nm
Manufacturing Process
4 nm
80 W
Power Consumption
170 W
-
Peak Operating Temperature
95°C
Intel
Foundry
TSMC
239 mm²
Die Size
2x70.6 mm²
-
I/O Process Size
6 nm
-
I/O Die Size
122 mm²
CPU Performance
2.4 GHz
Performance Core Base Frequency
4.3 GHz
2.666 GHz
Performance Core Turbo Frequency
5.7 GHz
6
Total Core Count
16
12
Total Thread Count
32
133 MHz
Bus Frequency
100 MHz
18.0
Multiplier
43.0
64 K per core
L1 Cache
80 KB per core
256 K per core
L2 Cache
1 MB per core
12 MB shared
L3 Cache
64 MB shared
No
Unlocked Multiplier
No
2
SMP
1
Memory Parameters
DDR3
Memory Types
DDR5-5600
3
Max Memory Channels
2
Yes
ECC Memory Support
Yes
Miscellaneous
2
PCIe Version
5
-
PCIe Lanes
24
