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Zen 3

AMD Zen 3
General information
LaunchedNovember 5, 2020 (November 5, 2020)
Designed byAMD
Common manufacturers
CPUID codeFamily 19h
Cache
L1 cache64 KB (per core):
  • 32 KB instructions
  • 32 KB data
L2 cache512 KB (per core)
L3 cache
  • 32 MB (per CCD)
  • 96 MB (per CCD with 3D V-Cache)
  • 16 MB (in APUs)
Architecture and classification
Technology node
Instruction setAMD64 (x86-64)
Physical specifications
Transistors
  • 6.24 billion (1× CCD) or
    10.39 billion (2× CCD)
    (4.15 billion per 7 nm 8-core "CCD" & 2.09 billion for the 12 nm "I/O die")[1]
Cores
    • Desktop: 4 to 16
    • Workstation: 16 to 64
    • Server: 16 to 64
Package
  • Package FP6
Sockets
Products, models, variants
Product code names
  • Desktop
    • Vermeer (w/o iGPU)
    • Cézanne (APU)
    • Chagall

  • Thin & Light Mobile
    • Cézanne
    • Barcelo
    • Barcelo-R

  • High-End Mobile
    Cézanne
  • Server
    • Milan
    • Milan-X

History
PredecessorZen 2
Successors
Support status
Supported

Zen 3 is the name for a CPU microarchitecture by AMD, released on November 5, 2020.[2][3] It is the successor to Zen 2 and uses TSMC's 7 nm process for the chiplets and GlobalFoundries's 14 nm process for the I/O die on the server chips and 12 nm for desktop chips.[4] Zen 3 powers Ryzen 5000 mainstream desktop processors (codenamed "Vermeer") and Epyc server processors (codenamed "Milan").[5][6] Zen 3 is supported on motherboards with 500 series chipsets; 400 series boards also saw support on select B450 / X470 motherboards with certain BIOSes.[7] Zen 3 is the last microarchitecture before AMD switched to DDR5 memory and new sockets, which are AM5 for the desktop "Ryzen" chips alongside SP5 and SP6 for the EPYC server platform and sTRX8.[3] According to AMD, Zen 3 has a 19% higher instructions per cycle (IPC) on average than Zen 2.

On April 1, 2022, AMD released the new Ryzen 6000 series for laptops/mobile, using an improved Zen 3+ architecture featuring notable architectural improvements to power efficiency and power management.[8] And slightly later, on April 20, 2022, AMD would also release the Ryzen 7 5800X3D desktop processor, which increased gaming performance by around +15% on average by using for the very first time in a PC product, a 3D vertically stacked L3 cache. Specifically in the form of a 64MB L3 cache "3D V Cache" die made on the same TSMC N7 process as the 8-core Zen 3 CCD which it gets direct copper to copper hybrid bonded to.[9]

  1. ^ Demerjian, Charlie (November 7, 2020). "A long look at AMD's Zen 3 core and chips". SemiAccurate. Retrieved February 1, 2021.
  2. ^ AMD (October 8, 2020). Where Gaming Begins, AMD Ryzen™ Desktop Processors. YouTube. Retrieved November 13, 2022.
  3. ^ a b Hruska, Joel (January 10, 2020). "AMD's Lisa Su Confirms Zen 3 Coming in 2020, Talks Challenges in Notebooks". ExtremeTech. Retrieved November 13, 2022.
  4. ^ Cutress, Ian (October 9, 2020). "AMD Ryzen 5000 and Zen 3 on Nov 5th: +19% IPC, Claims Best Gaming CPU". AnandTech. Retrieved November 13, 2022.
  5. ^ Knapp, Mark; Hanson, Matt (October 8, 2020). "AMD Zen 3 release date, specs and price: everything we know about AMD Ryzen 5000". TechRadar. Retrieved November 13, 2022.
  6. ^ Cite error: The named reference alcorn was invoked but never defined (see the help page).
  7. ^ Hruska, Joel (May 20, 2020). "AMD Will Support Zen 3, Ryzen 4000 CPUs on X470, B450 Motherboards". ExtremeTech. Retrieved May 20, 2020.
  8. ^ "AMD Unveils New Ryzen Mobile Processors Uniting "Zen 3+" core with AMD RDNA 2 Graphics in Powerhouse Design". AMD (Press release). Santa Clara, CA. January 4, 2022. Retrieved May 27, 2022.
  9. ^ "AMD Launches the Ultimate Gaming Processor, Brings Enthusiast Performance to an Expanded Lineup of Ryzen Desktop Processors". AMD (Press release). Santa Clara, CA. March 15, 2021. Retrieved November 13, 2022.

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