Intel Xeon W 2155 vs Intel Xeon E3 1275

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We compared two server CPUs: Intel Xeon W 2155 with 10 cores 3.3GHz and Intel Xeon E3 1275 with 4 cores 3.4GHz . You will find out which processor performs better in benchmark tests, key specifications, power consumption and more.

Main Differences

Intel Xeon W 2155 's Advantages

Released 6 years and 4 months late

Higher specification of memory (DDR4-2666 vs DDR3)

Larger L3 cache size (13.75MB vs 8MB)

More modern manufacturing process (14nm vs 32nm)

Intel Xeon E3 1275 's Advantages

Higher base frequency (3.4GHz vs 3.3GHz)

Lower TDP (95W vs 140W)

Score

Benchmark

Geekbench 6 Single Core

Intel Xeon W 2155

1095

Intel Xeon E3 1275 +23%

1347

Geekbench 6 Multi Core

Intel Xeon W 2155 +42%

6459

Intel Xeon E3 1275

4527

Intel Xeon W 2155

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Intel Xeon E3 1275

General Parameters

Aug 2017

Release Date

Apr 2011

Intel

Manufacturer

Intel

Server

Type

Server

Skylake-W

Core Architecture

Sandy Bridge

Intel Socket 2066

Socket

Intel Socket 1155

N/A

Integrated Graphics

Intel HD P3000

Xeon W (Skylake-W)

Generation

Xeon E3 (Sandy Bridge)

Package

-

Transistor Count

1.16 billions

14 nm

Manufacturing Process

32 nm

Intel Socket 2066

Socket

Intel Socket 1155

140 W

Power Consumption

95 W

68 °C

Peak Operating Temperature

-

Intel

Foundry

Intel

484 mm²

Die Size

216 mm²

FC-LGA2066

Package

FC-LGA10

CPU Performance

3.3 GHz

Performance Core Base Frequency

3.4 GHz

4.5 GHz

Performance Core Turbo Frequency

3.8 GHz

10

Total Core Count

4

20

Total Thread Count

8

100 MHz

Bus Frequency

100 MHz

33.0

Multiplier

34.0

64 K per core

L1 Cache

64 K per core

1 MB per core

L2 Cache

256 K per core

13.75 MB shared

L3 Cache

8 MB shared

No

Unlocked Multiplier

No

1

SMP

1

2

AVX-512 FMA Ports

-

Memory Parameters

DDR4-2666

Memory Types

DDR3

4

Max Memory Channels

2

Yes

ECC Memory Support

Yes

Miscellaneous

3

PCIe Version

3

48

PCIe Lanes

16

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