Intel Xeon E5645 vs Xeon W 11955M

VS

Intel Xeon E5645

Intel Xeon W-11955M

We compared two server CPUs: Intel Xeon E5645 with 6 cores 2.4GHz and Xeon W 11955M with 8 cores 2.1GHz . You will find out which processor performs better in benchmark tests, key specifications, power consumption and more.

Main Differences

Intel Xeon E5645 's Advantages

Higher base frequency (2.4GHz vs 2.1GHz)

Xeon W 11955M 's Advantages

Released 11 years and 2 months late

Higher specification of memory (3200 vs 3)

Newer PCIe version (4 vs 2)

Larger L3 cache size (24MB vs 12MB)

More modern manufacturing process (10nm vs 32nm)

Lower TDP (35W vs 80W)

Score

Benchmark

Geekbench 6 Single Core

Intel Xeon E5645

425

Xeon W 11955M +417%

2199

Geekbench 6 Multi Core

Intel Xeon E5645

3117

Xeon W 11955M +217%

9895

Intel Xeon E5645

VS

Xeon W 11955M

General Parameters

Mar 2010

Release Date

May 2021

Intel

Manufacturer

Intel

Server

Type

Server

Westmere-EP

Core Architecture

Tiger Lake-H

Intel Socket 1366

Socket

Intel BGA 1787

N/A

Integrated Graphics

UHD Graphics 750

Xeon (Westmere-EP)

Generation

Xeon (Tiger Lake-H)

Package

1.17 billions

Transistor Count

-

32 nm

Manufacturing Process

10 nm

80 W

Power Consumption

35 W

-

Peak Operating Temperature

72 °C

Intel

Foundry

Intel

239 mm²

Die Size

190 mm²

CPU Performance

2.4 GHz

Performance Core Base Frequency

2.1 GHz

2.666 GHz

Performance Core Turbo Frequency

5 GHz

6

Total Core Count

8

12

Total Thread Count

16

133 MHz

Bus Frequency

100 MHz

18.0

Multiplier

21.0

64 K per core

L1 Cache

80 KB per core

256 K per core

L2 Cache

1.25 MB per core

12 MB shared

L3 Cache

24 MB shared

No

Unlocked Multiplier

No

2

SMP

1

Memory Parameters

DDR3

Memory Types

DDR4-3200

3

Max Memory Channels

2

Yes

ECC Memory Support

Yes

Miscellaneous

2

PCIe Version

4

-

PCIe Lanes

20

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