Xeon D-1521

General

Manufacturer

Intel

Family

Xeon D

Codename

Broadwell

Type

Server

Instruction set

x86-64

Release date

November 2015

Launch price

US$ 199

Socket

FC-BGA 1667

Memory

DDR4-2133, DDR3L-1600

Product page

intel.com ↗

Performance

Cores

4

Threads

8

Base clock

2.4 GHz

Boost clock

2.7 GHz

L2 cache

1 MB

L3 cache

6 MB

TDP

45 W

Process

14 nm

Extensions

MMXSSESSE2SSE3SSSE3SSE4.1SSE4.2AESAVXF16CFMA3AVX2

SPEC CPU

SPECrate 2017 Integer (base)

19 ↗

SPECrate 2017 Floating Point (base)

19.4 ↗

Highest published base result on a system with one processor. Each score links to its result at spec.org; retrieved Nov 10, 2026.

SPEC CPU 2017 was retired in November 2026: no new results are published, and its scores cannot be compared with SPEC CPU 2026.

SPEC, SPECrate and SPEC CPU are registered trademarks of the Standard Performance Evaluation Corporation (SPEC).