Home Comparison Intel Xeon E3 1275 vs Intel Xeon E5 2643 v2

Intel Xeon E3 1275 vs Intel Xeon E5 2643 v2

Intel Xeon E3 1275
VS
Intel Xeon E5 2643 v2
Intel Xeon E3-1275
Intel Xeon E5-2643 v2
We compared two server CPUs: Intel Xeon E3 1275 with 4 cores 3.4GHz 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 E3 1275 's Advantages
Lower TDP (95W vs 130W)
Intel Xeon E5 2643 v2 's Advantages
Released 2 years and 5 months late
Higher base frequency (3.5GHz vs 3.4GHz)
Larger L3 cache size (15MB vs 8MB)
More modern manufacturing process (22nm vs 32nm)

Score

Benchmark

Geekbench 6 Single Core
Intel Xeon E3 1275 +131%
1347
Intel Xeon E5 2643 v2
581
Geekbench 6 Multi Core
Intel Xeon E3 1275 +46%
4527
Intel Xeon E5 2643 v2
3083
Intel Xeon E3 1275
VS
Intel Xeon E5 2643 v2

General Parameters

Apr 2011
Release Date
Sep 2013
Intel
Manufacturer
Intel
Server
Type
Server
Sandy Bridge
Core Architecture
Ivy Bridge-EP
Intel Socket 1155
Socket
Intel Socket 2011
Intel HD P3000
Integrated Graphics
N/A
Xeon E3 (Sandy Bridge)
Generation
Xeon E5 (Ivy Bridge-EP)

Package

1.16 billions
Transistor Count
1.4 billions
32 nm
Manufacturing Process
22 nm
95 W
Power Consumption
130 W
Intel
Foundry
Intel
216 mm²
Die Size
160 mm²

CPU Performance

3.4 GHz
Performance Core Base Frequency
3.5 GHz
3.8 GHz
Performance Core Turbo Frequency
0
4
Total Core Count
6
8
Total Thread Count
12
100 MHz
Bus Frequency
100 MHz
34.0
Multiplier
35.0
64 K per core
L1 Cache
64 K per core
256 K per core
L2 Cache
256 K per core
8 MB shared
L3 Cache
15 MB shared
No
Unlocked Multiplier
No
1
SMP
2

Memory Parameters

DDR3
Memory Types
DDR3
2
Max Memory Channels
4
Yes
ECC Memory Support
Yes

Miscellaneous

3
PCIe Version
3
16
PCIe Lanes
-

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