Zen+

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AMD Zen+
General information
LaunchedApril 2018
Designed byAMD
Common manufacturer(s)
Cache
L1 cache64 KiB instruction, 32 KiB data per core
L2 cache512 KiB per core
L3 cache8 MiB per quad-core CCX
Physical specifications
Transistors
Cores
    • 4-6 (mainstream)
    • 8 (performance)
    • 12-32 (enthusiast)[1]
Socket(s)
Products, models, variants
Product code name(s)
  • Pinnacle Ridge (Desktop)[2]
  • Colfax (HEDT)[1]
  • Picasso (APU/Embedded)
Brand name(s)
History
PredecessorZen (1st gen)
SuccessorZen 2

Zen+ is the codename for a computer processor microarchitecture by AMD. It is the successor to the first gen Zen microarchitecture,[3] first released in April 2018,[4] powering the second generation of Ryzen processors, known as Ryzen 2000 for mainstream desktop systems, Threadripper 2000 for high-end desktop setups and Ryzen 3000G (instead of 2000G) for accelerated processing units (APUs).

Features[edit]

Die shot of Ryzen 5-2600

Zen+ uses GlobalFoundries' 12 nm fabrication process,[5] an optimization of the 14 nm 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 use the new smaller transistors to increase the amount of empty space, or "dark silicon", between the various features on the die. This was done to improve power efficiency & reduce thermal density to allow for higher clock speeds, rather than design an entirely new floorplan for a physically smaller die.[7] These process optimizations allowed 12 nm Zen+ to clock about +250MHz (≈6%) higher, while also lowering power consumption when at the same frequency by over 10%, when compared to their prior 14 nm Zen products[8]. Although conversely at the microarchitecture level, Zen+ had only minor revisions versus Zen.[6] Known changes to the microarchitecture include improved clock speed regulation in response to workload ("Precision Boost 2"),[9] reduced cache and memory latencies (some significantly so), increased cache bandwidth, and finally improved IMC performance allowing for better DDR4 memory support (officially JEDEC rated to support up to 2933MHz versus just 2666MHz for Zen).[10]

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.[11][12]

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]

Feature tables[edit]

CPUs[edit]

CPU features table

APUs[edit]

APU features table

Products[edit]

Desktop CPUs[edit]

Model Release date
and price
Process Cores
(threads)
Clock rate (GHz) Cache[i] Socket PCIe
lanes[ii]
Memory
support
TDP Part number
Base PB2 L1 L2 L3
Entry-level
Ryzen 3 1200 AF

(12nm Refresh) [15]

April, 2020
US $60
GloFo
12LP (14LP+)
4 (4) 3.1 3.4 64 KB inst.
32 KB data
per core
512 KB
per core
8 MB AM4 24 DDR4-2933
dual-channel
65 W YD1200BBM4KAF
Ryzen 3 2300X [16] September 10, 2018
OEM
3.5 4.0
Mainstream
Ryzen 5 2500X [17] September 10, 2018
OEM
GloFo
12LP (14LP+)
4 (8) 3.6 4.0 64 KB inst.
32 KB data
per core
512 KB
per core
8 MB AM4 24 DDR4-2933
dual-channel
65W
Ryzen 5 2600E [18] September 2018
OEM
6 (12) 3.1 4.0 16 MB DDR4-2667
dual-channel
45 W
Ryzen 5 1600 AF
(12 nm refresh)[19]
October 11, 2019

US $85

3.2 3.6 DDR4-2933
dual-channel
65W YD1600BBM6IAF
Ryzen 5 2600 [20] April 19, 2018
US $199
3.4 3.9
Ryzen 5 2600X [21] April 19, 2018
US $229
3.6 4.2 95 W
November 23, 2018
UK £221.99
Performance
Ryzen 7 2700E [22] September 11, 2018
OEM
GloFo
12LP (14LP+)
8 (16) 2.8 4.0 64 KB inst.
32 KB data
per core
512 KB
per core
16 MB AM4 24 DDR4-2666
dual-channel
45 W
Ryzen 7 2700 [23] April 19, 2018
US $299
3.2 4.1 DDR4-2933
dual-channel
65 W
November 23, 2018
UK £285.49
Ryzen 7 Pro 2700 [24] April 2018
OEM
3.2 4.1
Ryzen 7 Pro 2700X [25] September 6, 2018
OEM
3.6 4.1 95W
Ryzen 7 2700X [26] April 19, 2018
US $329
3.7 4.3 105W
High-end desktop (HEDT)
Ryzen Threadripper 2920X [27] October 2018
US $649
GloFo
12LP (14LP+)
12 (24) 3.5 4.3 64 KB inst.
32 KB data
per core
512 KB
per core
32 MB TR4 64 DDR4-2933
quad-channel
180 W
Ryzen Threadripper 2950X [28] August 31, 2018
US $899
16 (32) 3.5 4.4
Ryzen Threadripper 2970WX [29] October 2018
US $1299
24 (48) 3.0 4.2 64 MB 250 W
Ryzen Threadripper 2990WX [30] August 13, 2018
US $1799
32 (64) 3.0 4.2
  1. ^ AMD defines 1 kilobyte (KB) as 1024 bytes, and 1 megabyte (MB) as 1024 kilobytes.[13]
  2. ^ PCIe lane count includes 4 lanes used for connectivity to the chipset.[14]

Desktop APUs[edit]

Model Release Date
& Price
Fab CPU GPU Memory
support
TDP
Cores
(threads)
Clock rate (GHz) Cache[a] Model Config[b] Clock Processing
power
(GFLOPS)[c]
Base Boost L1 L2 L3
Athlon Pro 300GE[32] September 30, 2019

OEM

12nm 2 (4) 3.4 N/A 64 KB inst.
32 KB data
per core
512 KB
per core
4 MB Vega 3 192:12:4
3 CU
1100 MHz 424.4 DDR4-2667
dual-channel
35 W
Athlon Silver Pro 3125GE[33] July 21, 2020

OEM

Athlon Gold 3150GE[34] 4 (4) 3.3 3.8 DDR4-2933
dual-channel
Athlon Gold Pro 3150GE[35]
Athlon Gold 3150G[36] 3.5 3.9 45-65 W
Athlon Gold Pro 3150G[37]
Ryzen 3 3200GE[38] July 7, 2019

OEM

3.3 3.8 Vega 8 512:32:16
8 CU
1200 MHz 1228.8 35 W
Ryzen 3 Pro 3200GE[39] September 30, 2019

OEM

Ryzen 3 3200G[40] July 7, 2019
US $99
3.6 4.0 1250 MHz 1280 45-65 W
Ryzen 3 Pro 3200G[41] September 30, 2019

OEM

Ryzen 5 Pro 3350GE[42] July 21, 2020

OEM

4 (8) 3.3 3.9 RX Vega 10 640:40:16

10 CU

1200 MHz 1536 35 W
Ryzen 5 Pro 3350G[43] 3.6 4.0 1300 MHz 1664 45-65 W
Ryzen 5 3400GE[44] July 7, 2019

OEM

3.3 4.0 RX Vega 11 704:44:16
11 CU
1830.4 35 W
Ryzen 5 Pro 3400GE[45] September 30, 2019

OEM

Ryzen 5 3400G[46] July 7, 2019
US $149
3.7 4.2 1400 MHz 1971.2 45-65 W
Ryzen 5 Pro 3400G[47] September 30, 2019

OEM

  1. ^ AMD defines 1 kilobyte (KB) as 1024 bytes, and 1 megabyte (MB) as 1024 kilobytes.[31]
  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.

Mobile[edit]

Model Release
date
Process CPU GPU Memory support TDP Part number
Cores
(threads)
Clock rate (GHz) Cache[i] Model Config[ii] Clock Processing
power
(GFLOPS)[iii]
Base Boost L1 L2 L3
Ryzen 3 3300U[48] January 6, 2019 GloFo
12LP (14LP+)
4 (4) 2.1 3.5 64 KB inst.
32 KB data
per core
512 KB
per core
4 MB Vega 6 384:24:8
6 CU[49]
1200 MHz 921.6 DDR4-2400
dual-channel
15 W YM3300C4T4MFG
Ryzen 3 PRO 3300U[50] YM330BC4T4MFG
Ryzen 5 3500U[51] 4 (8) 3.7 Vega 8 512:32:16
8 CU[52]
1228.8 YM3500C4T4MFG
Ryzen 5 PRO 3500U[53] YM350BC4T4MFG
Ryzen 5 3550H[54] 35 W YM3500C4T4MFG
Ryzen 5 3580U[55] October 2019 Vega 9 576:36:16
9 CU
1300 MHz 1497.6 15 W
Ryzen 7 3700U[56] January 6, 2019 2.3 4.0 Vega 10 640:40:16
10 CU[57]
1400 MHz 1792.0 YM3700C4T4MFG
Ryzen 7 PRO 3700U[58] YM370BC4T4MFG
Ryzen 7 3750H[59] 35 W YM3700C4T4MFG
Ryzen 7 3780U[60] October 2019 Vega 11 704:44:16
11 CU
1971.2 15 W
  1. ^ AMD defines 1 kilobyte (KB) as 1024 bytes, and 1 megabyte (MB) as 1024 kilobytes.[13]
  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.

See also[edit]

References[edit]

  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. ^ Cutress, Ian (19 April 2018). "The AMD 2nd Gen Ryzen Deep Dive: The 2700X, 2700, 2600X, and 2600 Tested". Anandtech. Retrieved 18 July 2020.
  8. ^ 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.
  9. ^ 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.
  10. ^ 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.
  11. ^ Bennett, Kyle (1 May 2018). "Precision Boost Overdrive and XFR Enhanced Confusion". HardOCP. Retrieved 13 August 2018.
  12. ^ AMD (14 April 2018). "2nd Gen AMD Ryzen™ Processors: XFR 2 and Precision Boost 2". YouTube. Retrieved 13 August 2018.
  13. ^ a b "Processor Programming Reference (PPR) for AMD Family 17h Model 01h, Revision B1 Processors" (PDF). AMD Technical Documentation. AMD Developer Central: Advanced Micro Devices, Inc. 2017-04-15. p. 25. Retrieved 2019-11-01.
  14. ^ Hagedoorn, Hilbert (11 April 2017). "AMD Ryzen 5 1500X and 1600X review – The AMD Chipsets". Guru3D. Retrieved 4 August 2017.
  15. ^ "AMD Ryzen™ 3 1200AF 12nm Processor". Tom's Hardware.
  16. ^ "AMD Ryzen™ 3 2300X Processor". AMD.
  17. ^ "AMD Ryzen™ 5 2500X Processor". AMD.
  18. ^ "AMD Ryzen™ 5 2600E Processor". AMD.
  19. ^ "AMD Ryzen 5 1600 AF CPU Review & Benchmarks: Best CPU Under $100 in 2020".
  20. ^ "AMD Ryzen 5 2600 Processor". AMD.
  21. ^ "AMD Ryzen™ 5 2600X Processor". AMD.
  22. ^ "AMD Ryzen™ 7 2700E Processor". AMD.
  23. ^ "AMD Ryzen™ 7 2700 Processor". AMD.
  24. ^ "AMD Ryzen™ 7 PRO 2700 Processor". AMD.
  25. ^ "AMD Ryzen™ 7 PRO 2700X Processor". AMD.
  26. ^ "AMD Ryzen™ 7 2700X Processor". AMD.
  27. ^ "AMD Ryzen™ Threadripper 2920X Processor". AMD.
  28. ^ "AMD Ryzen™ Threadripper 2950X Processor". AMD.
  29. ^ "AMD Ryzen™ Threadripper 2970WX Processor". AMD.
  30. ^ "AMD Ryzen™ Threadripper 2990WX Processor". AMD.
  31. ^ "Processor Programming Reference (PPR) for AMD Family 17h Model 01h, Revision B1 Processors" (PDF). AMD Technical Documentation. AMD Developer Central: Advanced Micro Devices, Inc. 2017-04-15. p. 25. Retrieved 2019-11-01.
  32. ^ "AMD Athlon™ PRO 300GE".
  33. ^ "AMD Athlon™ Silver PRO 3125GE".
  34. ^ "AMD Athlon™ Gold 3150GE".
  35. ^ "AMD Athlon™ Gold PRO 3150GE".
  36. ^ "AMD Athlon™ Gold 3150G".
  37. ^ "AMD Athlon™ Gold PRO 3150G".
  38. ^ "AMD Ryzen™ 3 3200GE".
  39. ^ "AMD Ryzen™ 3 PRO 3200GE".
  40. ^ Cutress, Ian. "AMD Ryzen 3000 APUs: Up to Vega 11, More MHz, Under $150, Coming July 7th". AnandTech.
  41. ^ "AMD Ryzen™ 3 PRO 3200G".
  42. ^ "AMD Ryzen™ 5 PRO 3350GE".
  43. ^ "AMD Ryzen™ 5 PRO 3350G".
  44. ^ "AMD Ryzen™ 5 3400GE".
  45. ^ "AMD Ryzen™ 5 PRO 3400GE".
  46. ^ "AMD Ryzen™ 5 3400G".
  47. ^ "AMD Ryzen™ 5 3400G".
  48. ^ "AMD Ryzen™ 3 3300U Mobile Processor with Radeon™ Vega 6 Graphics". Retrieved 2019-01-06.
  49. ^ "AMD Radeon Vega 6 Mobile Specs | TechPowerUp GPU Database". Techpowerup.com.
  50. ^ "AMD Ryzen™ 3 PRO 3300U Mobile Processor with Radeon™ Vega 6 Graphics".
  51. ^ "AMD Ryzen™ 5 3500U Mobile Processor with Radeon™ Vega 8 Graphics".
  52. ^ "AMD Radeon Vega 8 Specs | TechPowerUp GPU Database". Techpowerup.com.
  53. ^ "AMD Ryzen™ 5 PRO 3500U Mobile Processor with Radeon™ Vega 8 Graphics".
  54. ^ "AMD Ryzen™ 5 3550H Mobile Processor with Radeon™ Vega 8 Graphics". Retrieved 8 January 2018.
  55. ^ "AMD Ryzen™ 5 3580U Microsoft Surface® Edition".
  56. ^ "AMD Ryzen™ 7 3700U Mobile Processor with Radeon™ RX Vega 10 Graphics".
  57. ^ "AMD Radeon RX Vega 10 Mobile Specs | TechPowerUp GPU Database". Techpowerup.com.
  58. ^ "AMD Ryzen™ 7 PRO 3700U Mobile Processor with Radeon™ Vega 10 Graphics".
  59. ^ "AMD Ryzen™ 7 3750H Mobile Processor with Radeon™ RX Vega 10 Graphics".
  60. ^ "AMD Ryzen™ 7 3780U Microsoft Surface® Edition".