Intel Xeon w5 2455X vs Intel Xeon E5645

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Intel Xeon w5-2455X

Intel Xeon E5645

We compared two server CPUs: Intel Xeon w5 2455X with 12 cores 3.2GHz 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 w5 2455X 's Advantages

Released 12 years and 11 months late

Higher specification of memory (4800 vs 3)

Newer PCIe version (5 vs 2)

Higher base frequency (3.2GHz vs 2.4GHz)

Larger L3 cache size (30MB vs 12MB)

More modern manufacturing process (10nm vs 32nm)

Intel Xeon E5645 's Advantages

Lower TDP (80W vs 200W)

Score

Benchmark

Geekbench 6 Single Core

Intel Xeon w5 2455X +389%

2081

Intel Xeon E5645

425

Geekbench 6 Multi Core

Intel Xeon w5 2455X +255%

11071

Intel Xeon E5645

3117

Intel Xeon w5 2455X

VS

Intel Xeon E5645

General Parameters

Feb 2023

Release Date

Mar 2010

Intel

Manufacturer

Intel

Server

Type

Server

Sapphire Rapids

Core Architecture

Westmere-EP

Intel Socket 4677

Socket

Intel Socket 1366

N/A

Integrated Graphics

N/A

Xeon W (Sapphire Rapids)

Generation

Xeon (Westmere-EP)

Package

-

Transistor Count

1.17 billions

10 nm

Manufacturing Process

32 nm

200 W

Power Consumption

80 W

77 °C

Peak Operating Temperature

-

Intel

Foundry

Intel

-

Die Size

239 mm²

CPU Performance

3.2 GHz

Performance Core Base Frequency

2.4 GHz

4.6 GHz

Performance Core Turbo Frequency

2.666 GHz

12

Total Core Count

6

24

Total Thread Count

12

100 MHz

Bus Frequency

133 MHz

32.0

Multiplier

18.0

80 K per core

L1 Cache

64 K per core

2 MB per core

L2 Cache

256 K per core

30 MB

L3 Cache

12 MB shared

Yes

Unlocked Multiplier

No

1

SMP

2

AVX-512 FMA Ports

-

Memory Parameters

DDR5-4800

Memory Types

DDR3

2 TB

Max Memory Size

-

4

Max Memory Channels

3

Yes

ECC Memory Support

Yes

Miscellaneous

5

PCIe Version

2

64

PCIe Lanes

-

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