Intel Xeon E5 2665 vs Intel Xeon E5 2643 v2
We compared two server CPUs: Intel Xeon E5 2665 with 8 cores 2.4GHz and Intel Xeon E5 2643 v2 with 6 cores 3.5GHz . You will find out which processor performs better in benchmark tests, key specifications, power consumption and more.
Main Differences
Intel Xeon E5 2665 Advantages
Larger L3 cache size (20MB vs 15MB)
Lower TDP (115W vs 130W)
Intel Xeon E5 2643 v2 Advantages
Released 1 years and 6 months late
Higher base frequency (3.5GHz vs 2.4GHz)
More modern manufacturing process (22nm vs 32nm)
Score
Benchmark
Geekbench 6 Single Core
Intel Xeon E5 2665
554
Intel Xeon E5 2643 v2
+4%
581
Geekbench 6 Multi Core
Intel Xeon E5 2665
+51%
4680
Intel Xeon E5 2643 v2
3083
General Parameters
Mar 2012
Release Date
Sep 2013
Intel
Manufacturer
Intel
Server
Type
Server
Sandy Bridge-EP
Core Architecture
Ivy Bridge-EP
Intel Socket 2011
Socket
Intel Socket 2011
N/A
Integrated Graphics
N/A
Xeon E5 (Sandy Bridge-EP)
Generation
Xeon E5 (Ivy Bridge-EP)
Package
2.27 billions
Transistor Count
1.4 billions
32 nm
Manufacturing Process
22 nm
115 W
Power Consumption
130 W
Intel
Foundry
Intel
435 mm²
Die Size
160 mm²
CPU Performance
2.4 GHz
Performance Core Base Frequency
3.5 GHz
3.1 GHz
Performance Core Turbo Frequency
0
8
Total Core Count
6
16
Total Thread Count
12
100 MHz
Bus Frequency
100 MHz
24.0
Multiplier
35.0
64 K per core
L1 Cache
64 K per core
256 K per core
L2 Cache
256 K per core
20 MB shared
L3 Cache
15 MB shared
No
Unlocked Multiplier
No
2
SMP
2
Memory Parameters
DDR3
Memory Types
DDR3
4
Max Memory Channels
4
Yes
ECC Memory Support
Yes
Miscellaneous
3
PCIe Version
3
