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Comparison
Intel Xeon E5640 vs Intel Xeon E3 1280
Intel Xeon E5640 vs Intel Xeon E3 1280
VS
Intel Xeon E5640
Intel Xeon E3-1280
We compared two server CPUs: Intel Xeon E5640 with 4 cores 2.666GHz and Intel Xeon E3 1280 with 4 cores 3.5GHz . You will find out which processor performs better in benchmark tests, key specifications, power consumption and more.
Main Differences
Intel Xeon E5640 's Advantages
Larger L3 cache size (12MB vs 8MB)
Lower TDP (80W vs 95W)
Intel Xeon E3 1280 's Advantages
Released 1 years and 1 months late
Newer PCIe version (3 vs 2)
Higher base frequency (3.5GHz vs 2.666GHz)
Score
Benchmark
Geekbench 6 Single Core
Intel Xeon E5640
437
Intel Xeon E3 1280
+208%
1348
Geekbench 6 Multi Core
Intel Xeon E5640
2456
Intel Xeon E3 1280
+84%
4533
Intel Xeon E5640
VS
Intel Xeon E3 1280
General Parameters
Mar 2010
Release Date
Apr 2011
Intel
Manufacturer
Intel
Server
Type
Server
Westmere-EP
Core Architecture
Sandy Bridge
Intel Socket 1366
Socket
Intel Socket 1155
N/A
Integrated Graphics
N/A
Xeon (Westmere-EP)
Generation
Xeon E3 (Sandy Bridge)
Package
1.17 billions
Transistor Count
1.16 billions
32 nm
Manufacturing Process
32 nm
80 W
Power Consumption
95 W
Intel
Foundry
Intel
239 mm²
Die Size
216 mm²
CPU Performance
2.666 GHz
Performance Core Base Frequency
3.5 GHz
2.933 GHz
Performance Core Turbo Frequency
3.9 GHz
4
Total Core Count
4
8
Total Thread Count
8
133 MHz
Bus Frequency
100 MHz
20.0
Multiplier
35.0
64 K per core
L1 Cache
64 K per core
256 K per core
L2 Cache
256 K per core
12 MB shared
L3 Cache
8 MB shared
No
Unlocked Multiplier
No
2
SMP
1
Memory Parameters
DDR3
Memory Types
DDR3
3
Max Memory Channels
2
Yes
ECC Memory Support
Yes
Miscellaneous
2
PCIe Version
3
-
PCIe Lanes
16
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