Edit Values
Zen+ µarch
General Info
Arch Type	CPU
Designer	AMD
Manufacturer	GlobalFoundries
Introduction	April 2018
Process	12 nm
Core Configs	2, 4, 6, 8, 12, 16
Pipeline
Type	Superscalar
OoOE	Yes
Speculative	Yes
Reg Renaming	Yes
Stages	19
Decode	4-way
Instructions
ISA	x86-64
Extensions	MOVBE, MMX, SSE, SSE2, SSE3, SSSE3, SSE4.1, SSE4.2, POPCNT, AVX, AVX2, AES, PCLMUL, RDRND, F16C, BMI, BMI2, RDSEED, ADCX, PREFETCHW, CLFLUSHOPT, XSAVE, SHA, CLZERO
Cache
L1I Cache	64 KiB/core 4-way set associative
L1D Cache	32 KiB/core 8-way set associative
L2 Cache	512 KiB/core 8-way set associative
L3 Cache	2 MiB/core 16-way set associative
Succession
Zen Zen 2

Zen+ (Zen Plus) is a planned microarchitecture being developed by AMD as a successor to Zen. Zen+ is expected to be succeeded by Zen 2.

Zen+ based processors are sold under the brand Ryzen 2nd Generation.

History

Zen+ is set to succeed Zen in April of 2018. Zen+ will feature the same core as Zen but will take advantage of the new GlobalFoundries' 12nm process to deliver higher clock speeds and improved power consumption. Zen+ was initially mentioned by AMD's senior fellow and lead architect of Zen, Michael Clark, during Hot Chips 28 in 2016 as part of AMD's continuing commitment in the high-performance computing market.

Codenames

Preliminary Data! Information presented in this article deal with future products, data, features, and specifications that have yet to be finalized, announced, or released. Information may be incomplete and can change by final release.

Core	C/T	Target
Pinnacle Ridge	Up to 8/16	Mainstream to high-end desktops & enthusiasts market processors
Picasso	4/8	Mainstream desktop & mobile processors with GPU

Release Dates

AMD intends on launching 2nd generation Ryzen in April of 2018. 2nd Generation Ryzen Threadripper and Ryzen PRO processors will launch in the second half of 2018.

Architecture

Serving as a light refresh over Zen, those processors have around ten percent higher base frequency for the same power envelope.

Key changes from Zen

• ~10% higher clock frequency
• 12 nm process (from 14 nm)
• Precision Boost 2 (from Precision Boost)
• Mainstream chipsets (See § Sockets/Platform)
  • X370 → X470
    • Lower Power
    • Bug fixes
    • OEM related issues resolved (unspecified)

Block Diagram

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Memory Hierarchy

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Sockets/Platform

This section is empty; you can help add the missing info by editing this page.

References

• AMD CES Tech Day 2018, Jim Anderson
• AMD CES Tech Day 2018, Lisa Su
• AMD CES Tech Day 2018, Mark Papermaster

Documents

• AMD Tech Day 2018, Jim Anderson
• AMD Tech Day 2018, Lisa Su
• AMD Tech Day 2018, Mark Papermaster

See Also

• Intel Coffee Lake