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Zen+ is the codename for AMD's successor to the Zen microarchitecture,[3] first released in April 2018,[4] powering the second generation of Ryzen processors, known as Ryzen 2000 for mainstream desktop systems, and Threadripper 2000 for high-end desktop setups.

AMD Zen+
ProducedApril 2018
Designed byAMD
Common manufacturer(s)
Cores
  • 4-6 (mainstream)
  • 8 (performance)
  • 12-32 (enthusiast)[1]
L1 cache64 KiB instruction, 32 KiB data per core
L2 cache512 KiB per core
L3 cache8 MiB per quad-core CCX
Transistors12 nm (FinFET)
Socket(s)
PredecessorZen
SuccessorZen 2
Product code name(s)
  • Pinnacle Ridge (Desktop)[2]
  • Colfax (HEDT)[1]
  • Picasso (APU/Embedded)
Brand name(s)

Contents

FeaturesEdit

 
Die shot of Ryzen 5-2600

Zen+ uses GlobalFoundries' 12nm fabrication process,[5] an optimization of the 14nm process used for Zen, with only minor design rule changes.[6] This means that the die sizes between Zen and Zen+ are identical as AMD chose to increase the amount of empty space between the individual, now smaller transistors to improve power efficiency & reduce thermal density rather than design an entirely new floor-plan for a physically smaller die.[citation needed] These process optimizations 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 and 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]

ProductsEdit

Desktop CPUsEdit

Model Release Date
& Price
Cores
(threads)
Clock rate (GHz) Cache[a] Socket PCIe
lanes[b]
Memory
support
TDP
Base PB2 L1 L2 L3
Entry-level
Ryzen 3 2300X[14][15] September 11, 2018
OEM
4 (4) 3.5 4.0 384 KB 512 KB
per core
8 MB AM4 24 DDR4-2933
dual-channel
65 W
Mainstream
Ryzen 5 2500X[14][15] September 11, 2018
OEM
4 (8) 3.6 4.0 384 KB 512 KB
per core
8 MB AM4 24 DDR4-2933
dual-channel
65 W
Ryzen 5 2600E[14] September 11, 2018
OEM
6 (12) 3.1 4.0 578 KB (?) 16 MB DDR4-2666
dual-channel[16]
45 W
Ryzen 5 2600[c][18][19] April 19, 2018
US $199
3.4 3.9 576 KB DDR4-2933
dual-channel
65 W
Ryzen 5 2600X[18][19] April 19, 2018
US $229
3.6 4.2 576 KB 95 W
Performance
Ryzen 7 2700E[14] September 11, 2018
OEM
8 (16) 2.8 4.0 768 KB 512 KB
per core
16 MB AM4 24 DDR4-2666
dual-channel[20]
45 W
Ryzen 7 2700[c][18][19] April 19, 2018
US $299
3.2 4.1 DDR4-2933
dual-channel
65 W
Ryzen 7 PRO 2700X[c] September 6, 2018
OEM
3.6 4.1 105 W
Ryzen 7 2700X[18][19] April 19, 2018
US $329
3.7 4.3
High-end desktop (HEDT)
Ryzen Threadripper 2920X[21][22] October 2018
US $649
12 (24) 3.5 4.3 1.125 MB 512 KB
per core
32 MB TR4 64 DDR4-2933
quad-channel
180 W
Ryzen Threadripper 2950X[21][22] August 31, 2018
US $899
16 (32) 3.5 4.4 1.5 MB
Ryzen Threadripper 2970WX[21][22] October 2018
US $1299
24 (48) 3.0 4.2 2.25 MB 64 MB 250 W
Ryzen Threadripper 2990WX[21][22] August 13, 2018
US $1799
32 (64) 3.0 4.2 3 MB
  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]
  3. ^ a b c Model also available as PRO variant for OEMs, which may offer additional features not listed in this table. PRO models were released by AMD on September 6, 2018.[17]

Desktop APUsEdit

Model Release Date
& Price
CPU GPU Memory
support
TDP
Cores
(threads)
Clock rate (GHz) Cache[a] Model Config[b] Clock Processing power
(GFLOPS)[c]
Base Boost L2 L3
Ryzen 3 3200G[23] July 7, 2019
US $99
4 (4) 3.6 4.0 2 MB 4 MB RX Vega 8 512:32:16
8 CU
1250 MHz 1280 DDR4-2933
dual-channel
65 W
Ryzen 5 3400G[23] July 7, 2019
US $149
4 (8) 3.7 4.2 RX Vega 11 704:44:16
11 CU
1400 MHz 1971.2
  1. ^ AMD defines 1 kilobyte (KB) as 1024 bytes, and 1 megabyte (MB) as 1024 kilobytes.[12]
  2. ^ Unified Shaders : Texture Mapping Units : Render Output Units and Compute Units (CU)
  3. ^ Single-precision performance is calculated from the base (or boost) core clock speed based on a FMA operation.

MobileEdit

Model Release

date

CPU GPU Memory support TDP Part number
Cores(threads) Clock rate (GHz) Cache[a] Model Config[b] Clock Processing power (GFLOPS)[c]
Base Boost XFR L2 L3
Athlon 300U[116] January 6, 2019 2 (4) 2.4 3.3 Unknown 1 MB 4 MB Vega 3 192:12:4

3 CU[117]

1000 MHz 384.0 DDR4-2400

dual-channel

15 W YM300UC4T2OFG
Ryzen 3 3200U[118] 2.6 3.5 1200 MHz 460.8 YM3200C4T2OFG
Ryzen 3 3300U[119] 4 (4) 2.1 2 MB Vega 6 384:24:8

6 CU[120]

921.6 YM3300C4T4MFG
Ryzen 5 3500U[121] 4 (8) 3.7 Vega 8 512:32:16

8 CU[122]

1228.8 YM3500C4T4MFG
Ryzen 5 3550H[123] 35 W YM3500C4T4MFG
Ryzen 7 3700U[124] 2.3 4.0 Vega 10 640:40:16

10 CU[125]

1400 MHz 1792.0 15 W YM3700C4T4MFG
Ryzen 7 3750H[126] 35 W YM3700C4T4MFG

See alsoEdit

ReferencesEdit

  1. ^ a b 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. ^ a b c d Cutress, Ian (19 April 2018). "The AMD 2nd Gen Ryzen Deep Dive: The 2700X, 2700, 2600X, and 2600 Tested". Anandtech. Retrieved Nov 30, 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. ^ a b "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. ^ a b c d Cutress, Ian; Shilov, Anton. "AMD Announces Four New Ryzen CPUs: 2700E, 2600E, 2500X, and 2300X". Retrieved 2018-09-11.
  15. ^ a b Cutress, Ian (February 11, 2019). "The AMD Ryzen 5 2500X and Ryzen 3 2300X CPU Review". AnandTech. Retrieved 12 February 2019.
  16. ^ "AMD Ryzen™ 5 2600E | AMD". www.amd.com. Retrieved 2018-10-19.
  17. ^ "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.
  18. ^ a b c d "2nd Generation AMD Ryzen™ Processors: Ultimate Desktop CPUs for High-Performance Computing Available April 19 Worldwide". AMD. 13 April 2018. Retrieved 13 April 2018.
  19. ^ a b c d Cutress, Ian (13 April 2018). "AMD Ryzen 2nd Gen Details". Anandtech.com. Retrieved 13 April 2018.
  20. ^ "AMD Ryzen™ 7 2700E | AMD". www.amd.com. Retrieved 2018-10-19.
  21. ^ a b c d "Ryzen™ Threadripper™ Processors | AMD". www.amd.com. Retrieved 7 August 2018.
  22. ^ a b c d Cutress, Ian (6 August 2018). "The AMD Threadripper 2 Teaser: Pre-Orders Start Today, Up to 32 Cores". AnandTech. Retrieved 6 August 2018.
  23. ^ a b Cutress, Ian. "AMD Ryzen 3000 APUs: Up to Vega 11, More MHz, Under $150, Coming July 7th". AnandTech.