Intel Xeon E5 4640 vs Intel Xeon E3 1280 v2

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Intel Xeon E5-4640

Intel Xeon E3-1280 v2

We compared two server CPUs: Intel Xeon E5 4640 with 8 cores 2.4GHz and Intel Xeon E3 1280 v2 with 4 cores 3.6GHz . You will find out which processor performs better in benchmark tests, key specifications, power consumption and more.

Main Differences

Intel Xeon E5 4640 's Advantages

Larger L3 cache size (20MB vs 8MB)

Intel Xeon E3 1280 v2 's Advantages

Higher base frequency (3.6GHz vs 2.4GHz)

More modern manufacturing process (22nm vs 32nm)

Lower TDP (69W vs 95W)

Score

Benchmark

Geekbench 6 Single Core

Intel Xeon E5 4640

375

Intel Xeon E3 1280 v2 +71%

644

Geekbench 6 Multi Core

Intel Xeon E5 4640

658

Intel Xeon E3 1280 v2 +250%

2306

Intel Xeon E5 4640

VS

Intel Xeon E3 1280 v2

General Parameters

May 2012

Release Date

May 2012

Intel

Manufacturer

Intel

Server

Type

Server

Sandy Bridge-EP

Core Architecture

Ivy Bridge

Intel Socket 2011

Socket

Intel Socket 1155

N/A

Integrated Graphics

N/A

Xeon E5 (Sandy Bridge-EP)

Generation

Xeon E3 (Ivy Bridge)

Package

2.27 billions

Transistor Count

1.4 billions

32 nm

Manufacturing Process

22 nm

95 W

Power Consumption

69 W

Intel

Foundry

Intel

435 mm²

Die Size

160 mm²

CPU Performance

2.4 GHz

Performance Core Base Frequency

3.6 GHz

2.8 GHz

Performance Core Turbo Frequency

4 GHz

8

Total Core Count

4

16

Total Thread Count

8

100 MHz

Bus Frequency

100 MHz

24.0

Multiplier

36.0

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

8 MB shared

No

Unlocked Multiplier

No

4

SMP

1

Memory Parameters

DDR3

Memory Types

DDR3

4

Max Memory Channels

2

Yes

ECC Memory Support

Yes

Miscellaneous

3

PCIe Version

3

-

PCIe Lanes

16

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