Intel Xeon E5645 vs Xeon E5462
We compared two server CPUs: Intel Xeon E5645 with 6 cores 2.4GHz and Xeon E5462 with 4 cores 2.8GHz . You will find out which processor performs better in benchmark tests, key specifications, power consumption and more.
Main Differences
Intel Xeon E5645 's Advantages
Released 2 years and 4 months late
More modern manufacturing process (32nm vs 45nm)
Xeon E5462 's Advantages
Higher specification of memory (3 vs 3)
Higher base frequency (2.8GHz vs 2.4GHz)
Score
Benchmark
Geekbench 6 Single Core
Intel Xeon E5645
+20%
425
Xeon E5462
353
Geekbench 6 Multi Core
Intel Xeon E5645
+216%
3117
Xeon E5462
985
General Parameters
Mar 2010
Release Date
Nov 2007
Intel
Manufacturer
Intel
Server
Type
Server
Westmere-EP
Core Architecture
Harpertown
Intel Socket 1366
Socket
Intel Socket 771
N/A
Integrated Graphics
N/A
Xeon (Westmere-EP)
Generation
Xeon (Harpertown)
Package
1.17 billions
Transistor Count
0.82 billions
32 nm
Manufacturing Process
45 nm
80 W
Power Consumption
80 W
Intel
Foundry
Intel
239 mm²
Die Size
2x107 mm²
CPU Performance
2.4 GHz
Performance Core Base Frequency
2.8 GHz
2.666 GHz
Performance Core Turbo Frequency
0
6
Total Core Count
4
12
Total Thread Count
4
133 MHz
Bus Frequency
400 MHz
18.0
Multiplier
7.0
64 K per core
L1 Cache
64 KB per core
256 K per core
L2 Cache
6 MB per die
12 MB shared
L3 Cache
-
No
Unlocked Multiplier
No
2
SMP
2
Memory Parameters
DDR3
Memory Types
DDR2, DDR3
Depends on motherboard
3
Max Memory Channels
2
Yes
ECC Memory Support
Yes
Miscellaneous
2
PCIe Version
2
