Intel Xeon E5645 vs Xeon E7 2803
We compared two server CPUs: Intel Xeon E5645 with 6 cores 2.4GHz and Xeon E7 2803 with 6 cores 1.733GHz . You will find out which processor performs better in benchmark tests, key specifications, power consumption and more.
Main Differences
Intel Xeon E5645 's Advantages
Higher base frequency (2.4GHz vs 1.733GHz)
Lower TDP (80W vs 105W)
Xeon E7 2803 's Advantages
Released 1 years and 1 months late
Higher specification of memory (1333 vs 3)
Larger L3 cache size (18MB vs 12MB)
Score
General Parameters
Mar 2010
Release Date
Apr 2011
Intel
Manufacturer
Intel
Server
Type
Server
Westmere-EP
Core Architecture
Westmere-EX
Intel Socket 1366
Socket
Intel Socket 1567
N/A
Integrated Graphics
N/A
Xeon (Westmere-EP)
Generation
Xeon E7(Westmere-EX)
Package
1.17 billions
Transistor Count
2.6 billions
32 nm
Manufacturing Process
32 nm
80 W
Power Consumption
105 W
Intel
Foundry
Intel
239 mm²
Die Size
513 mm²
CPU Performance
2.4 GHz
Performance Core Base Frequency
1.733 GHz
2.666 GHz
Performance Core Turbo Frequency
0
6
Total Core Count
6
12
Total Thread Count
12
133 MHz
Bus Frequency
133 MHz
18.0
Multiplier
13.0
64 K per core
L1 Cache
64 KB per core
256 K per core
L2 Cache
256 KB per core
12 MB shared
L3 Cache
18 MB shared
No
Unlocked Multiplier
No
2
SMP
2
Memory Parameters
DDR3
Memory Types
DDR3-1333
3
Max Memory Channels
4
Yes
ECC Memory Support
Yes
Miscellaneous
2
PCIe Version
-
