Intel Xeon E3 1275 v5 vs Xeon L5645

VS

Intel Xeon E3-1275 v5

Intel Xeon L5645

We compared two server CPUs: Intel Xeon E3 1275 v5 with 4 cores 3.6GHz and Xeon L5645 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 1275 v5 's Advantages

Released 4 years and 8 months late

Higher specification of memory (2133 vs 1333)

Newer PCIe version (3 vs 2)

Higher base frequency (3.6GHz vs 2.4GHz)

More modern manufacturing process (14nm vs 32nm)

Xeon L5645 's Advantages

Larger L3 cache size (12MB vs 8MB)

Lower TDP (60W vs 80W)

Score

Intel Xeon E3 1275 v5

VS

Xeon L5645

General Parameters

Oct 2015

Release Date

Feb 2011

Intel

Manufacturer

Intel

Server

Type

Server

Skylake-DT

Core Architecture

Westmere-EP

Intel Socket 1151

Socket

Intel Socket 1366

HD Graphics P530

Integrated Graphics

N/A

Xeon E3 (Skylake-DT)

Generation

Xeon(Westmere-EP)

Package

1.75 billions

Transistor Count

1.17 billions

14 nm

Manufacturing Process

32 nm

80 W

Power Consumption

60 W

Intel

Foundry

Intel

122 mm²

Die Size

239 mm²

CPU Performance

3.6 GHz

Performance Core Base Frequency

2.4 GHz

4 GHz

Performance Core Turbo Frequency

2.933 GHz

4

Total Core Count

6

8

Total Thread Count

12

100 MHz

Bus Frequency

133 MHz

36.0

Multiplier

18.0

64 K per core

L1 Cache

64 KB per core

256 K per core

L2 Cache

256 KB per core

8 MB shared

L3 Cache

12 MB shared

No

Unlocked Multiplier

No

1

SMP

2

Memory Parameters

DDR3,DDR4-2133

Memory Types

DDR3-1333

2

Max Memory Channels

3

Yes

ECC Memory Support

Yes

Miscellaneous

3

PCIe Version

2

16

PCIe Lanes

-

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