CPUServerReleased 2015

Intel Xeon D-1521

4C/8T · 2.7 GHz · 45 W

The Xeon D-1521 is a four-core, eight-thread Broadwell-DE system-on-chip launched in November 2015 as an updated successor to the D-1520 with higher clocks. It integrates two 10 Gigabit Ethernet ports, SATA, USB and 32 PCI Express lanes in a 45 W BGA package for entry microservers, storage appliances and network devices. It launched at $199, and Intel later listed a higher recommended price.

General

Manufacturer
Intel
Model
Intel Xeon D-1521
Segment
Server
Generation
Xeon D-1500 (Broadwell-DE)
Codename
Broadwell-DE
Architecture
x86_64
Microarchitecture
Broadwell
Release date
2015

Cores & clocks

Cores / threads
4 cores / 8 threads
Base clock
2.40 GHz
Boost clock
2.70 GHz
TDP (design W)
45 W
Unlocked
✕ No
L2 cache
1 MB
L3 cache
6 MB
Technology (nm)
14 nm
14 nm

Platform

Socket
FCBGA1667
2-CPU (multi-socket)
✕ No
Integrated GPU
None
Memory type
DDR4-2133, DDR3L-1600
2-channel
Memory size
Up to 128 GB
ECC memory
✓ Yes
PCIe
PCIe 3.0 (24 lanes) + PCIe 2.0 (8 lanes)

Instructions & AI

Instruction extensions
Intel AVX2
NPU
None

OS support

Windows
Windows 10
Linux
UbuntuFedoraArch Linux
Notes
Broadwell-based Xeon D processors are not on Microsoft's supported-processor lists for Windows 11 24H2, 25H2 or 26H2; Windows 10 runs on them, although these embedded server platforms normally run Windows Server or a Linux distribution. ChromeOS is not offered for this platform.
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