Intel Xeon E3 1265L v3 vs Intel Xeon D 1521

VS

Intel Xeon E3-1265L v3

Intel Xeon D-1521

We compared two server CPUs: Intel Xeon E3 1265L v3 with 4 cores 2.5GHz and Intel Xeon D 1521 with 4 cores 2.4GHz . You will find out which processor performs better in benchmark tests, key specifications, power consumption and more.

Main Differences

Intel Xeon E3 1265L v3 's Advantages

Higher base frequency (2.5GHz vs 2.4GHz)

Larger L3 cache size (8MB vs 1.5MB)

Intel Xeon D 1521 's Advantages

Released 2 years and 5 months late

More modern manufacturing process (14nm vs 22nm)

Score

Benchmark

Geekbench 6 Single Core

Intel Xeon E3 1265L v3 +36%

1223

Intel Xeon D 1521

896

Geekbench 6 Multi Core

Intel Xeon E3 1265L v3

1224

Intel Xeon D 1521 +166%

3261

Intel Xeon E3 1265L v3

VS

Intel Xeon D 1521

General Parameters

Jun 2013

Release Date

Nov 2015

Intel

Manufacturer

Intel

Server

Type

Server

Haswell-WS

Core Architecture

Broadwell

Intel Socket 1150

Socket

Intel BGA 1667

Intel HD (Haswell)

Integrated Graphics

N/A

Xeon E3 (Haswell-WS)

Generation

Xeon D (Broadwell-DE)

Package

1.4 billions

Transistor Count

3.2 billions

22 nm

Manufacturing Process

14 nm

45 W

Power Consumption

45 W

-

Peak Operating Temperature

80 °C

Intel

Foundry

Intel

160 mm²

Die Size

246 mm²

CPU Performance

2.5 GHz

Performance Core Base Frequency

2.4 GHz

3.7 GHz

Performance Core Turbo Frequency

2.7 GHz

4

Total Core Count

4

8

Total Thread Count

8

100 MHz

Bus Frequency

100 MHz

25.0

Multiplier

24.0

64 K per core

L1 Cache

64 K per core

256 K per core

L2 Cache

256 K per core

8 MB shared

L3 Cache

1.5 MB per core

No

Unlocked Multiplier

No

1

SMP

1

Memory Parameters

DDR3,DDR4

Memory Types

DDR3,DDR4

2

Max Memory Channels

2

Yes

ECC Memory Support

Yes

Miscellaneous

3

PCIe Version

3

-

PCIe Lanes

24

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