Intel Xeon E5 2666 v3 vs AMD EPYC 9745
We compared two server CPUs: Intel Xeon E5 2666 v3 with 10 cores 2.9GHz and AMD EPYC 9745 with 128 cores 2.4GHz . You will find out which processor performs better in benchmark tests, key specifications, power consumption and more.
Main Differences
Intel Xeon E5 2666 v3 's Advantages
Higher base frequency (2.9GHz vs 2.4GHz)
Lower TDP (135W vs 400W)
AMD EPYC 9745 's Advantages
Released 9 years and 11 months late
Higher specification of memory (6000 vs 2133)
Newer PCIe version (5 vs 3)
Larger L3 cache size (256MB vs 25MB)
More modern manufacturing process (3nm vs 22nm)
Score
Benchmark
Geekbench 6 Single Core
Intel Xeon E5 2666 v3
1046
AMD EPYC 9745
+125%
2357
Geekbench 6 Multi Core
Intel Xeon E5 2666 v3
6173
AMD EPYC 9745
+282%
23581
General Parameters
Nov 2014
Release Date
Oct 2024
Intel
Manufacturer
AMD
Server
Type
Server
Haswell-EP
Core Architecture
Turin
Intel Socket 2011-3
Socket
AMD Socket SP5
N/A
Integrated Graphics
N/A
Xeon E5 (Haswell-EP)
Generation
EPYC(Zen 5c (Turin))
Package
2.6 billions
Transistor Count
22 nm
Manufacturing Process
3 nm
135 W
Power Consumption
400 W
Intel
Foundry
TSMC
356 mm²
Die Size
mm²
-
I/O Process Size
6 nm
-
I/O Die Size
mm²
CPU Performance
-
Performance Cores
128
-
Performance Core Threads
256
2.9 GHz
Performance Core Base Frequency
2.4 GHz
3.5 GHz
Performance Core Turbo Frequency
3.7 GHz
10
Total Core Count
128
20
Total Thread Count
256
100 MHz
Bus Frequency
100 MHz
29.0
Multiplier
24.0
64 K per core
L1 Cache
80 KB per core
256 K per core
L2 Cache
1 MB per core
25 MB shared
L3 Cache
256 MB shared
No
Unlocked Multiplier
No
2
SMP
2
Memory Parameters
DDR4-2133,DDR3-2133
Memory Types
DDR5-6000
-
Max Memory Size
6 TB
4
Max Memory Channels
12
-
Max Memory Bandwidth
576 GB/s
Yes
ECC Memory Support
Yes
