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Zen 2

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AMD Zen 2
General information
LaunchedJuly 2019
Designed byAMD
Common manufacturers
Architecture and classification
Technology node7 nm[1][2]
Physical specifications
Cores
  • up to 64 (server)
Sockets
Products, models, variants
Product code names
  • Matisse (Desktop)
  • Castle Peak (HEDT)
  • Rome (Server)[2]
History
PredecessorZen+
SuccessorZen 3[3][2]

Zen 2 is the codename for a successor of AMD's Zen and Zen+ microarchitectures due to be fabricated on the 7 nanometer node from TSMC with product sampling planned for late 2018, followed by commercial release in July 2019, powering the third generation of Ryzen processors, known as Ryzen 3000 for the mainstream desktop chips, and Threadripper 3000 for high-end desktop systems.[4][5] At Computex 2019, AMD announced a product release date of July 7, 2019.[6]

Zen 2 is expected to bring an increase in instructions per clock over Zen, but not nearly as large as the jump from Excavator to Zen.[7] At the 2018 Consumer Electronics Show (CES), AMD confirmed that Zen 2 design was complete; however, its release was not announced for 2018, leading analysts to predict a 2019 release date.[8]

Zen 2 is planned to include hardware mitigations to the Spectre security vulnerability.[9] Zen 2-based EPYC server CPUs (codename "Rome") use a design in which multiple CPU dies (up to 8x in total) manufactured on a 7 nm process ("chiplets") are combined with a 14 nm I/O die on each MCM package. Through this, up to 64 physical cores and 128 total compute threads (with simultaneous multithreading) are supported per socket.[10] At 2019 CES, AMD showed a Ryzen 3rd-generation engineering sample that contains one chiplet with 8 cores and 16 threads.[4] Lisa Su also said to expect more than 8 cores in the final lineup.[11]

Products

Common features of Ryzen 3000 desktop CPUs:

  • Socket: AM4.
  • All the CPUs support DDR4-3200 in dual-channel mode.
  • L1 cache: 64 KB (32 KB data + 32 KB instruction) per core.
  • L2 cache: 512 KB per core.
  • All the CPUs support 24 PCIe 4.0 lanes. 4 of the lanes are reserved as link to the chipset.
  • No integrated graphics.
  • Fabrication process: TSMC 7FF.
Branding and Model Cores
(threads) 		Thermal Solution Clock rate (GHz) L3 cache
(total) 		TDP Chiplets[i] Core
config[ii] 		Release
date 		MSRP
Base Boost
Ryzen 9 3950X 16 (32) N/A 3.5 4.7 64 MB 105 W[iii] 2 × CCD
1 × I/OD 		4 × 4 Nov 25, 2019 US $749
3900XT 12 (24) 3.8 4 × 3 Jul 7, 2020 US $499
3900X Wraith Prism 4.6 Jul 7, 2019
3900[a] OEM 3.1 4.3 65 W Oct 8, 2019 OEM
Ryzen 7 3800XT 8 (16) N/A 3.9 4.7 32 MB 105 W 1 × CCD
1 × I/OD 		2 × 4 Jul 7, 2020 US $399
3800X Wraith Prism 4.5 Jul 7, 2019
3700X[a] 3.6 4.4 065 W[iv] US $329
Ryzen 5 3600XT 6 (12) N/A 3.8 4.5 95 W 2 × 3 Jul 7, 2020 US $249
3600X Wraith Spire (non-LED) 4.4 Jul 7, 2019
3600[a] Wraith Stealth 3.6 4.2 65 W US $199
3500X[14] 6 (6) 4.1 Oct 8, 2019 China
¥1099
3500 OEM 16 MB Nov 15, 2019 OEM (West)
Japan
¥16000[15]
Ryzen 3 3300X 4 (8) Wraith Stealth 3.8 4.3 1 × 4 Apr 21, 2020 US $119
3100 3.6 3.9 2 × 2 US $99
  1. ^ A Core Complex Die contain 1-2 Core Complexes (CCXs).
  2. ^ Core Complexes (CCXs) × cores per CCX
  3. ^ Ryzen 9 3900X and Ryzen 9 3950X may consume over 145 W under load.[12]
  4. ^ Ryzen 7 3700X may consume 90 W under load.[13]
  1. ^ a b c Model also available as PRO 3600, PRO 3700, PRO 3900, released on September 30, 2019 for OEMs.

See also

Wikimedia Commons has media related to Zen microarchitecture.

References

  1. ^ Larabel, Michael (16 May 2017). "AMD Talks Up Vega Frontier Edition, Epyc, Zen 2, ThreadRipper". Phoronix. Retrieved 16 May 2017.
  2. ^ a b c Cutress, Ian (20 June 2017). "AMD EPYC Launch Event Live Blog". AnandTech. Retrieved 21 June 2017.
  3. ^ Wong, Adrian (18 April 2017). "Joe Macri: The Disruptive Nature of AMD Ryzen". TechArp. Retrieved 20 April 2017.
  4. ^ a b Cutress, Ian (9 January 2019). "AMD Ryzen 3rd Gen 'Matisse' Coming Mid 2019: Eight Core Zen 2 with PCIe 4.0 on Desktop". AnandTech. Retrieved 15 January 2019.
  5. ^ https://www.heise.de/newsticker/meldung/AMD-Ryzen-3000-12-Kernprozessoren-fuer-den-Mainstream-4432392.html
  6. ^ "AMD Ryzen 3000 CPUs launching July 7 with up to 12 cores". PCGamesN. Retrieved 2019-05-28.
  7. ^ "AMD's next-gen Zen CPU due in 2016".
  8. ^ Cutress, Ian (8 January 2018). "AMD Tech Day at CES". AnandTech. Retrieved 8 January 2018.
  9. ^ Alcorn, Paul (31 January 2018). "AMD Predicts Double-Digit Revenue Growth In 2018, Ramps Up GPU Production". Tom's Hardware. Retrieved 31 January 2018.
  10. ^ Shilov, Anton (6 November 2018). "AMD Unveils 'Chiplet' Design Approach: 7nm Zen 2 Cores Meet 14 nm I/O Die".
  11. ^ Hachman, Mark (9 January 2019). "AMD's CEO Lisa Su confirms ray tracing GPU development, hints at more 3rd-gen Ryzen cores". Retrieved 15 January 2019.
  12. ^ Alcorn, Paul (November 14, 2019). "Tom's Hardware Ryzen 9 3950X review". Tom's Hardware. Retrieved May 12, 2020.
  13. ^ Alcorn, Paul (December 31, 2020). "AMD Ryzen 9 3900X and Ryzen 7 3700X Review: Zen 2 and 7nm Unleashed". Tom's Hardware. Retrieved April 16, 2024.
  14. ^ Cutress, Ian (October 8, 2019). "AMD Brings Ryzen 9 3900 and Ryzen 5 3500X To Life". AnandTech.
  15. ^ Syed, Areej (February 17, 2020). "AMD Launches Ryzen 5 3500 in Japan with 6 Cores/6 Threads for 16K Yen". Hardware Times.
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