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Sunny Cove - Microarchitectures - Intel
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Sunny Cove µarch
General Info
Arch TypeCPU
Process10 nm

Sunny Cove is the successor to Palm Cove, a high-performance 10 nm x86 core microarchitecture designed by Intel for an array of server and client products.


Intel Core roadmap

Sunny Cove was originally unveiled by Intel at their 2018 architecture day. Intel originally intended for Sunny Cove to succeed Palm Cove in late 2017 which was it was intended to be the first 10 nm-based core and the proper successor to Skylake. Prolong delays and problems with their 10 nm process and resulted in a number of improvised derivatives of Skylake including Kaby Lake, Coffee Lake, and Comet Lake. For all practical purposes, Palm Cove has been skipped and Intel has gone directly to Sunny Cove. Sunny Cove is expected to debut in mid-2019.

14nm improv 10 delays.svg

Process Technology

Sunny Cove is designed to take advantage of Intel's 10 nm process.


Key changes from Palm Cove

This list is incomplete; you can help by expanding it.

New instructions

Sunny Cove introduced a number of new instructions:

  • CLWB - Force cache line write-back without flush
  • RDPID - Read Processor ID
  • Additional AVX-512 extensions:
  • SSE_GFNI - SSE-based Galois Field New Instructions
  • AVX_GFNI - AVX-based Galois Field New Instructions
  • Split Lock Detection - detection and cause an exception for split locks
  • Fast Short REP MOV


Sunny Cove is Intel's core microarchitecture for a series of client and server chips that succeed Palm Cove (and effectively the Skylake series of derivative). Sunny cove introduces a very large set of enhancements and improvements of its predecessor including a wider and deeper pipeline. Sunny Cove is implemented in a number of chips including Lakefield, Ice Lake (Client), and Ice Lake (Server).


  • Intel Architecture Day 2018, December 11, 2018
codenameSunny Cove +
designerIntel +
first launched2019 +
full page nameintel/microarchitectures/sunny cove +
instance ofmicroarchitecture +
instruction set architecturex86-64 +
manufacturerIntel +
microarchitecture typeCPU +
nameSunny Cove +
process10 nm (0.01 μm, 1.0e-5 mm) +