Intel Xeon E3 1265L v4 vs Intel Xeon E5645

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Intel Xeon E3-1265L v4

Intel Xeon E5645

We compared two server CPUs: Intel Xeon E3 1265L v4 with 4 cores 2.3GHz and Intel Xeon E5645 with 6 cores 2.4GHz . You will find out which processor performs better in benchmark tests, key specifications, power consumption and more.

Main Differences

Intel Xeon E3 1265L v4 's Advantages

Released 5 years and 3 months late

Higher specification of memory (1866 vs 3)

Newer PCIe version (3 vs 2)

More modern manufacturing process (14nm vs 32nm)

Lower TDP (35W vs 80W)

Intel Xeon E5645 's Advantages

Higher base frequency (2.4GHz vs 2.3GHz)

Larger L3 cache size (12MB vs 6MB)

Score

Benchmark

Geekbench 6 Single Core

Intel Xeon E3 1265L v4 +192%

1243

Intel Xeon E5645

425

Geekbench 6 Multi Core

Intel Xeon E3 1265L v4 +38%

4328

Intel Xeon E5645

3117

Intel Xeon E3 1265L v4

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Intel Xeon E5645

General Parameters

Jun 2015

Release Date

Mar 2010

Intel

Manufacturer

Intel

Server

Type

Server

Broadwell-DT

Core Architecture

Westmere-EP

Intel Socket 1150

Socket

Intel Socket 1366

Intel Iris Pro P6300

Integrated Graphics

N/A

Xeon E3 (Broadwell-DT)

Generation

Xeon (Westmere-EP)

Package

-

Transistor Count

1.17 billions

14 nm

Manufacturing Process

32 nm

35 W

Power Consumption

80 W

Intel

Foundry

Intel

182 mm²

Die Size

239 mm²

CPU Performance

2.3 GHz

Performance Core Base Frequency

2.4 GHz

3.3 GHz

Performance Core Turbo Frequency

2.666 GHz

4

Total Core Count

6

8

Total Thread Count

12

100 MHz

Bus Frequency

133 MHz

23.0

Multiplier

18.0

64 K per core

L1 Cache

64 K per core

256 K per core

L2 Cache

256 K per core

6 MB shared

L3 Cache

12 MB shared

No

Unlocked Multiplier

No

1

SMP

2

Memory Parameters

DDR3-1866

Memory Types

DDR3

2

Max Memory Channels

3

Yes

ECC Memory Support

Yes

Miscellaneous

3

PCIe Version

2

16

PCIe Lanes

-

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