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Willow Cove - Microarchitectures - Intel
| Edit Values | |
| Willow Cove µarch | |
| General Info | |
| Arch Type | CPU |
| Designer | Intel |
| Manufacturer | Intel |
| Introduction | 2020 |
| Process | 10 nm |
| Core Configs | 2, 4, 6, 8 |
| Pipeline | |
| OoOE | Yes |
| Speculative | Yes |
| Reg Renaming | Yes |
| Stages | 14-19 |
| Decode | 5-way |
| Instructions | |
| ISA | x86-64 |
| Cores | |
| Core Names | Tiger Lake |
| Succession | |
| Contemporary | |
| Cypress Cove | |
Willow Cove is the successor to Sunny Cove, a high-performance 10 nm x86 core microarchitecture designed by Intel for an array of server and client products, including Tiger Lake.
History[edit]
Willow Cove was originally unveiled by Intel at their 2018 architecture day. Willow Cove is intended to succeed Sunny Cove in the 2020 timeframe.
Process Technology[edit]
Willow Cove is designed to take advantage of Intel's 10 nm process (10nm SuperFin).
Architecture[edit]
Key changes from Sunny Cove
- Expanded L2 Cache (512KB 8-way → 1.25MB 20-way)
- 50% Expanded L3 Cache (8MB 16-way → 12MB 12-way)
- Memory Subsystem with more bandwidth and LPDDR5 support
- New Total Memory Encryption(TME) feature
This list is incomplete; you can help by expanding it.
New instructions[edit]
Willow Cove introduced a number of new instructions:
- Control-flow Enforcement Technology (CET) enhancements
-
MOVDIR- Direct stores - Additional AVX-512 extensions:
-
AVX512_VP2INTERSECT- AVX-512 Vector Intersection Instructions
-
Bibliography[edit]
- Intel Architecture Day 2018, December 11, 2018
Facts about "Willow Cove - Microarchitectures - Intel"
| codename | Willow Cove + |
| core count | 2 +, 4 +, 6 + and 8 + |
| designer | Intel + |
| first launched | 2020 + |
| full page name | intel/microarchitectures/willow cove + |
| instance of | microarchitecture + |
| instruction set architecture | x86-64 + |
| manufacturer | Intel + |
| microarchitecture type | CPU + |
| name | Willow Cove + |
| pipeline stages (max) | 19 + |
| pipeline stages (min) | 14 + |
| process | 10 nm (0.01 μm, 1.0e-5 mm) + |