Intel Xeon E3 1245 v5 vs Xeon E7 2820

VS

Intel Xeon E3-1245 v5

Intel Xeon E7-2820

We compared two server CPUs: Intel Xeon E3 1245 v5 with 4 cores 3.5GHz and Xeon E7 2820 with 8 cores 2GHz . You will find out which processor performs better in benchmark tests, key specifications, power consumption and more.

Main Differences

Intel Xeon E3 1245 v5 's Advantages

Released 4 years and 6 months late

Higher specification of memory (2133 vs 1333)

Higher base frequency (3.5GHz vs 2GHz)

More modern manufacturing process (14nm vs 32nm)

Lower TDP (80W vs 105W)

Xeon E7 2820 's Advantages

Larger L3 cache size (18MB vs 8MB)

Score

Intel Xeon E3 1245 v5

VS

Xeon E7 2820

General Parameters

Oct 2015

Release Date

Apr 2011

Intel

Manufacturer

Intel

Server

Type

Server

Skylake-DT

Core Architecture

Westmere-EX

Intel Socket 1151

Socket

Intel Socket 1567

HD Graphics P530

Integrated Graphics

N/A

Xeon E3 (Skylake-DT)

Generation

Xeon E7(Westmere-EX)

Package

1.75 billions

Transistor Count

2.6 billions

14 nm

Manufacturing Process

32 nm

80 W

Power Consumption

105 W

Intel

Foundry

Intel

122 mm²

Die Size

513 mm²

CPU Performance

3.5 GHz

Performance Core Base Frequency

2 GHz

3.9 GHz

Performance Core Turbo Frequency

2.266 GHz

4

Total Core Count

8

Total Thread Count

16

100 MHz

Bus Frequency

133 MHz

35.0

Multiplier

15.0

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

18 MB shared

No

Unlocked Multiplier

No

1

SMP

2

Memory Parameters

DDR3,DDR4-2133

Memory Types

DDR3-1333

2

Max Memory Channels

4

Yes

ECC Memory Support

Yes

Miscellaneous

3

PCIe Version

-

16

PCIe Lanes

-

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