CPUDesktopReleased Aug 5, 2015

Intel Core i5-6600K

4C/4T · 3.9 GHz · 91 W

The Core i5-6600K is an unlocked quad-core desktop processor that launched alongside the Core i7-6700K at Gamescom on August 5, 2015, as the first Skylake chips. It introduced the LGA 1151 socket and 100-series chipsets with DDR4 support, and its unlocked multiplier made it a popular choice for overclocking gaming PCs. It has no Hyper-Threading and ships without a boxed cooler.

General

Manufacturer
Intel
Model
Intel Core i5-6600K
Segment
Desktop
Generation
6th Gen Core
Codename
Skylake-S
Architecture
x86_64
Microarchitecture
Skylake
Release date
Aug 5, 2015

Cores & clocks

Cores / threads
4 cores / 4 threads
Base clock
3.50 GHz
Boost clock
3.90 GHz
TDP (design W)
91 W
Unlocked
✓ Yes
L2 cache
—
L3 cache
6 MB
Technology (nm)
14 nm
14 nm

Platform

Socket
FCLGA1151
2-CPU (multi-socket)
✕ No
Integrated GPU
Intel HD Graphics 530
Clock: 1,150 MHz
Memory type
DDR4-1866/2133, DDR3L-1333/1600
2-channel
Memory size
Up to 64 GB
ECC memory
✕ No
PCIe
PCIe 3.0 (16 lanes)

Instructions & AI

Instruction extensions
SSE4.1SSE4.2AVX2
NPU
None

OS support

Windows
Windows 10
Linux
UbuntuFedoraArch Linux
Notes
Windows 10 is the newest Windows release officially supported; Skylake (6th Gen Core) predates Microsoft's Windows 11 supported-processor list, which starts at 8th Gen Intel Core. Mainstream Linux distributions are supported.
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