Intel Xeon E5 2666 v3 vs Xeon E7 2803

VS

Intel Xeon E5-2666 v3

Intel Xeon E7-2803

We compared two server CPUs: Intel Xeon E5 2666 v3 with 10 cores 2.9GHz and Xeon E7 2803 with 6 cores 1.733GHz . You will find out which processor performs better in benchmark tests, key specifications, power consumption and more.

Main Differences

Intel Xeon E5 2666 v3 's Advantages

Released 3 years and 7 months late

Higher specification of memory (2133 vs 1333)

Higher base frequency (2.9GHz vs 1.733GHz)

Larger L3 cache size (25MB vs 18MB)

More modern manufacturing process (22nm vs 32nm)

Xeon E7 2803 's Advantages

Lower TDP (105W vs 135W)

Score

Intel Xeon E5 2666 v3

VS

Xeon E7 2803

General Parameters

Nov 2014

Release Date

Apr 2011

Intel

Manufacturer

Intel

Server

Type

Server

Haswell-EP

Core Architecture

Westmere-EX

Intel Socket 2011-3

Socket

Intel Socket 1567

N/A

Integrated Graphics

N/A

Xeon E5 (Haswell-EP)

Generation

Xeon E7(Westmere-EX)

Package

2.6 billions

Transistor Count

2.6 billions

22 nm

Manufacturing Process

32 nm

135 W

Power Consumption

105 W

Intel

Foundry

Intel

356 mm²

Die Size

513 mm²

CPU Performance

2.9 GHz

Performance Core Base Frequency

1.733 GHz

3.5 GHz

Performance Core Turbo Frequency

0

10

Total Core Count

6

20

Total Thread Count

12

100 MHz

Bus Frequency

133 MHz

29.0

Multiplier

13.0

64 K per core

L1 Cache

64 KB per core

256 K per core

L2 Cache

256 KB per core

25 MB shared

L3 Cache

18 MB shared

No

Unlocked Multiplier

No

2

SMP

2

Memory Parameters

DDR4-2133,DDR3-2133

Memory Types

DDR3-1333

4

Max Memory Channels

4

Yes

ECC Memory Support

Yes

Miscellaneous

3

PCIe Version

-

40

PCIe Lanes

-

Related CPU Comparisons

1

Intel Xeon E5 2666 v3 vs Intel Xeon E5640

2

Intel Xeon E5 2666 v3 vs AMD Ryzen Embedded 8840U

3

Intel Xeon E5 2666 v3 vs Intel Xeon E5 4603

4

Intel Xeon E5 2666 v3 vs Intel Xeon E3 1283L v4

5

Intel Xeon E5 2666 v3 vs AMD EPYC Embedded 3251

6

Intel Xeon E5 2666 v3 vs AMD EPYC 7272

7

Intel Xeon E5 2666 v3 vs AMD EPYC Embedded 3451

8

Intel Xeon E5 2666 v3 vs Xeon E 2274G

9

Intel Xeon E5 2666 v3 vs Opteron 1389

10

Intel Xeon E5 2666 v3 vs Intel Xeon E7 8860

Related News

1

Intel Wildcat Lake Appears on Shipping List with FCBGA1516 Socket, Poised to Replace Alder Lake-N

2

The Commencement of ARM and Qualcomm Licensing Dispute Trial: Potential Major Impact on PC Market

3

NVIDIA Allegedly Equips RTX 5080 with 30Gbps Memory Speed, Other Models to Feature 28Gbps

4

Intel Reports High Return Rates for Devices Featuring Snapdragon X Series; Qualcomm Counters with 'Industry Standard' Claim

5

Intel Confirms Panther Lake Adopts 18A Process, ES0 Samples Already Sent to Customers

6

Complete Lineup of Core Ultra 200HX/H/U and Core 200H/U Revealed: 31 Models to Dazzle the Eyes

7

Amechi Unveils V1 Mini PC: Only 0.33L Volume with 150W Power Consumption

8

iPhone 17 Series Set for Major Design Overhaul: Camera Module Transformed into Sleek Strip

9

The Thinnest iPhone Ever! iPhone 17 Air Reportedly Enters Foxconn's NPI Stage

10

Apple Allegedly Cancels M4 Extreme, Originally Planned for Mac Pro with 64-Core CPU and 160-Core GPU