Zen+

AMD Zen+
Produced April 2018
Designed by AMD
Common manufacturer(s)
Cores
  • 4-6 (mainstream)
  • 8 (performance)
  • 12-32 (enthusiast)[1]
L1 cache 64 KiB instruction, 32 KiB data per core
L2 cache 512 KiB per core
L3 cache 8 MiB per quad-core CCX
Transistors 12 nm (FinFET)
Socket(s)
Predecessor Zen
Successor Zen 2
Product code name(s)
  • Pinnacle Ridge (Desktop)[2]
  • Colfax (HEDT)[1]
Brand name(s)

Zen+ is the codename for AMD's successor to the Zen,[3] first released in April 2018.[4]

Features

Zen+ uses GlobalFoundries' 12nm fabrication process,[5], a die shrink relative to the 14nm process used for Zen.[6] However, the die size and transistor count are the same for Zen and Zen+, with AMD using the smaller feature size to increase the space between features. The die shrink allowed for Zen+ to achieve higher clock speeds and lower power consumption than Zen products,[7] though with only minor revisions compared to the Zen microarchitecture.[6] Known changes to the microarchitecture include improved clock speed regulation in response to workload,[8] reduced cache & memory latencies, increased cache bandwidth, and better DDR4 SDRAM memory support.[9]

Zen+ also supports improvements in the per-core clocking features, based on core utilization and CPU temperatures.[6] These changes to the core utilization, temperature, and power algorithms are branded as Precision Boost 2 and XFR2 (eXtended Frequency Range 2), evolutions of the first-generation technologies in Zen. On Zen, XFR gave an additional 50 to 200 MHz clock speed increase (in 25 MHz increments) over the maximum Precision Boost clocks. For Zen+, XFR2 is no longer listed as a separate clock modifier. Instead, the XFR temperature, power, and clock monitoring and logic feeds into the Precision Boost 2 algorithm to adjust clocks and power consumption opportunistically and dynamically.[10][11]

Ultimately, the changes in Zen+ resulted in a 3% improvement in IPC over Zen; which in conjunction with 6% higher clock speeds resulted in up to 10% overall increase in performance.[6]

Products

Target
segment		 Processor
Branding & Model		 Cores
(threads)		 Clock rate (GHz) Cache[lower-alpha 1] TDP Socket Memory
support		 PCIe
Lanes[lower-alpha 2]		 Release
date		 Release
price (USD)
Base PB2 L2 L3
Entry-level Ryzen 3 2300X[14] 4 (4) 3.5 4.0 512 KB
per core		 8 MB 65 W AM4 DDR4-2933
Dual Channel		 24 September 11, 2018 OEM
Mainstream Ryzen 5 2500X[14] 4 (8) 3.6 4.0
2600E[14] 6 (12) 3.1 4.0 16 MB 45 W DDR4-2666
Dual Channel[15]
PRO 2600[16] 3.4 3.9 65 W DDR4-2933
Dual Channel		 September 6, 2018 ?
2600[17][18] April 19, 2018 $199
2600X[17][18] 3.6 4.2 95 W $229
Performance Ryzen 7 2700E[14] 8 (16) 2.8 4.0 45 W DDR4-2666
Dual Channel[19]		 September 11, 2018
PRO 2700[16] 3.2 4.1 65 W DDR4-2933
Dual Channel		 September 6, 2018 ?
2700[17][18] April 19, 2018 $299
PRO 2700X[16] 3.6 4.1 105 W September 6, 2018 ?
2700X[17][18] 3.7 4.3 April 19, 2018 $329
HEDT
(High-End Desktop)		 Ryzen
Threadripper		 2920X[20][21] 12 (24) 3.5 4.3 32 MB 180 W TR4 DDR4-2933
Quad Channel		 64 October 2018 $649
2950X[20][21] 16 (32) 3.5 4.4 August 31, 2018 $899
2970WX[20][21] 24 (48) 3.0 4.2 64 MB 250 W October 2018 $1299
2990WX[20][21] 32 (64) 3.0 4.2 August 13, 2018 $1799
  1. ↑ AMD defines 1 kilobyte (KB) as 1024 bytes, and 1 megabyte (MB) as 1024 kilobytes.[12]
  2. ↑ PCIe lane count includes 4 lanes used for connectivity to the chipset.[13]

References

  1. 1 2 Cutress, Ian (5 June 2018). "AMD Reveals Threadripper 2". Anandtech. Retrieved 6 June 2018.
  2. ↑ Alcorn, Paul (13 April 2018). "AMD Announces 2nd Generation Ryzen 7 & 5 CPUs: Pricing, Pre-Orders". Tom's Hardware. Retrieved 13 April 2018.
  3. ↑ Cutress, Ian (8 January 2018). "AMD Tech Day at CES". Anandtech. Retrieved 8 January 2018.
  4. ↑ Bright, Peter (8 January 2018). "AMD's 2018 roadmap: Desktop APUs in February, second-generation Ryzen in April". Ars Technica. Retrieved 9 January 2018.
  5. ↑ "AMD Will Use 'New' GlobalFoundries 12nm Node for Future CPUs, GPUs". ExtremeTech. 2017-09-22. Retrieved 2018-02-04.
  6. 1 2 3 4 Cutress, Ian (19 April 2018). "The AMD 2nd Gen Ryzen Deep Dive". Anandtech. Retrieved 30 April 2018.
  7. ↑ Kampman, Jeff (8 January 2018). "AMD lays out its Ryzen and Radeon plans for 2018 and beyond at CES". Tech Report. Retrieved 8 January 2018.
  8. ↑ Leather, Anthony (7 January 2018). "AMD Confirms New Zen+ Ryzen CPUs For April 2018: X470 Chipset, Threadripper And APUs Inbound Too". Forbes. Retrieved 9 January 2018.
  9. ↑ Mah Ung, Gordon (7 January 2018). "AMD reveals Ryzen 2, Threadripper 2, 7nm Navi, and more in CES blockbuster". PC World. Retrieved 9 January 2018.
  10. ↑ Bennett, Kyle (1 May 2018). "Precision Boost Overdrive and XFR Enhanced Confusion". HardOCP. Retrieved 13 August 2018.
  11. ↑ AMD (14 April 2018). "2nd Gen AMD Ryzen™ Processors: XFR 2 and Precision Boost 2". YouTube. Retrieved 13 August 2018.
  12. ↑ "Processor Programming Reference (PPR) for AMD Family 17h Model 01h, Revision B1 Processors" (PDF). Processor Programming Reference (PPR) for AMD Family 17h Model 01h, Revision B1 Processors. AMD. Retrieved 14 July 2017.
  13. ↑ Hagedoorn, Hilbert (11 April 2017). "AMD Ryzen 5 1500X and 1600X review - The AMD Chipsets". Guru3D. Retrieved 4 August 2017.
  14. 1 2 3 4 Shilov, Ian Cutress, Anton. "AMD Announces Four New Ryzen CPUs: 2700E, 2600E, 2500X, and 2300X". Retrieved 2018-09-11.
  15. ↑ "AMD Ryzen™ 5 2600E | AMD". www.amd.com. Retrieved 2018-10-19.
  16. 1 2 3 "AMD Reimagines Everyday Computing with New "Zen" Based Athlon™ Desktop Processors, Expands Commercial Client Portfolio with 2nd Generation Ryzen™ PRO Desktop Processors | AMD". www.amd.com. Retrieved 2018-09-09.
  17. 1 2 3 4 "2nd Generation AMD Ryzen™ Processors: Ultimate Desktop CPUs for High-Performance Computing Available April 19 Worldwide". AMD. 13 April 2018. Retrieved 13 April 2018.
  18. 1 2 3 4 Cutress, Ian (13 April 2018). "AMD Ryzen 2nd Gen Details". Anandtech.com. Retrieved 13 April 2018.
  19. ↑ "AMD Ryzen™ 7 2700E | AMD". www.amd.com. Retrieved 2018-10-19.
  20. 1 2 3 4 "Ryzen™ Threadripper™ Processors | AMD". www.amd.com. Retrieved 7 August 2018.
  21. 1 2 3 4 Cutress, Ian (6 August 2018). "The AMD Threadripper 2 Teaser: Pre-Orders Start Today, Up to 32 Cores". AnandTech. Retrieved 6 August 2018.


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