Intel Xeon Phi 3120A vs Intel Xeon E3 1275

VS

Intel Xeon Phi 3120A

Intel Xeon E3-1275

We compared two server CPUs: Intel Xeon Phi 3120A with 57 cores 1.1GHz 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 Phi 3120A 's Advantages

Released 2 years and 2 months late

Higher specification of memory (4 vs 3)

More modern manufacturing process (22nm vs 32nm)

Intel Xeon E3 1275 's Advantages

Higher base frequency (3.4GHz vs 1.1GHz)

Lower TDP (95W vs 300W)

Score

Intel Xeon Phi 3120A

VS

Intel Xeon E3 1275

General Parameters

Jun 2013

Release Date

Apr 2011

PCIe

Manufacturer

Intel

Server

Type

Server

Knights Corner

Core Architecture

Sandy Bridge

PCIe x16

Socket

Intel Socket 1155

N/A

Integrated Graphics

Intel HD P3000

Xeon Phi (Knights Corner)

Generation

Xeon E3 (Sandy Bridge)

Package

5 billions

Transistor Count

1.16 billions

22 nm

Manufacturing Process

32 nm

300 W

Power Consumption

95 W

Intel

Foundry

Intel

350 mm²

Die Size

216 mm²

CPU Performance

1.1 GHz

Performance Core Base Frequency

3.4 GHz

0

Performance Core Turbo Frequency

3.8 GHz

57

Total Core Count

4

228

Total Thread Count

8

100 MHz

Bus Frequency

100 MHz

11.0

Multiplier

34.0

32 K per core

L1 Cache

64 K per core

512 K per core

L2 Cache

256 K per core

-

L3 Cache

8 MB shared

No

Unlocked Multiplier

No

1

SMP

1

Memory Parameters

DDR3,DDR4

Memory Types

DDR3

Max Memory Channels

2

Yes

ECC Memory Support

Yes

Miscellaneous

-

PCIe Version

3

-

PCIe Lanes

16

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