Zen+

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AMD Zen+
General information
LaunchedApril 2018
Designed byAMD
Common manufacturer(s)
Cache
L1 cache64 KB instruction, 32 KB data per core
L2 cache512 KB per core
L3 cache8 MB per 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
An AMD 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 (which would have been significantly more work and thus more expensive).[7] These process optimizations allowed 12 nm Zen+ to clock about +250 MHz (≈6%) higher, or to lower power consumption when at the same frequency by 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 2933 MHz compared to just 2666 MHz on the prior Zen core).[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
Fab Chiplets Cores
(threads)
Core Config[i] Clock rate (GHz) Cache Socket PCIe lanes
(User accessible+Chipset link)
Memory
support
TDP
Base PB2 L1 L2 L3
Entry-level
Ryzen 3 1200 AF
(12 nm refresh)[13]
April, 2020
US $60
GloFo
12LP (14LP+)
1 × CCD 4 (4) 1 × 4 3.1 3.4 64 KB inst.
32 KB data
per core
512 KB
per core
8 MB AM4 24 (20+4) DDR4-2933
dual-channel
65 W
Ryzen 3 2300X [14] September 10, 2018
OEM
3.5 4.0
Mainstream
Ryzen 5 2500X [15] September 10, 2018
OEM
GloFo
12LP (14LP+)
1 × CCD 4 (8) 1 × 4 3.6 4.0 64 KB inst.
32 KB data
per core
512 KB
per core
8 MB AM4 24 (20+4) DDR4-2933
dual-channel
65 W
Ryzen 5 2600E [16] September 2018
OEM
6 (12) 2 × 3 3.1 4.0 16 MB
8 MB per CCX
DDR4-2667
dual-channel
45 W
Ryzen 5 1600 AF
(12 nm refresh)[17]
October 11, 2019
US $85
3.2 3.6 DDR4-2933
dual-channel
65 W
Ryzen 5 2600 [18] April 19, 2018
US $199
3.4 3.9
Ryzen 5 2600X [19] April 19, 2018
US $229
3.6 4.2 95 W
November 23, 2018
UK £221.99
Performance
Ryzen 7 2700E [20] September 11, 2018
OEM
GloFo
12LP (14LP+)
1 × CCD 8 (16) 2 × 4 2.8 4.0 64 KB inst.
32 KB data
per core
512 KB
per core
16 MB
8 MB per CCX
AM4 24 (20+4) DDR4-2667
dual-channel
45 W
Ryzen 7 2700 [21] 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 [22] April 2018
OEM
3.2 4.1
Ryzen 7 Pro 2700X [23] September 6, 2018
OEM
3.6 4.1 95 W
Ryzen 7 2700X [24] April 19, 2018
US $329
3.7 4.3 105 W
High-end desktop (HEDT)
Ryzen Threadripper 2920X [25] October 2018
US $649
GloFo
12LP (14LP+)
2 × CCD 12 (24) 4 × 3 3.5 4.3 64 KB inst.
32 KB data
per core
512 KB
per core
32 MB
8 MB per CCX
TR4 64 (60+4) DDR4-2933
quad-channel
180 W
Ryzen Threadripper 2950X [26] August 31, 2018
US $899
16 (32) 4 × 4 3.5 4.4
Ryzen Threadripper 2970WX [27] October 2018
US $1299
4 × CCD 24 (48) 8 × 3 3.0 4.2 64 MB
8 MB per CCX
250 W
Ryzen Threadripper 2990WX [28] August 13, 2018
US $1799
32 (64) 8 × 4 3.0 4.2
  1. ^ Core Complexes (CCX) × cores per CCX


Desktop APUs[edit]

Model Release Date
& Price
Fab CPU GPU Socket PCIe lanes Memory
support
TDP
Cores
(threads)
Clock rate (GHz) Cache Model Config[i] Clock
(GHz)
Processing
power
(GFLOPS)[ii]
Base Boost L1 L2 L3
Athlon Pro 300GE[29] September 30, 2019
OEM
12 nm 2 (4) 3.4 No boost capability
Third-party overclocking exists
64 KB inst.
32 KB data
per core
512 KB
per core
4 MB Vega 3 192:12:4
3 CU
1.1 424.4 AM4 16 (8+4+4) DDR4-2667
dual-channel
35 W
Athlon Silver Pro 3125GE[30] July 21, 2020
OEM
Athlon Gold 3150GE[31] 4 (4) 3.3 3.8 DDR4-2933
dual-channel
Athlon Gold Pro 3150GE[32]
Athlon Gold 3150G[33] 3.5 3.9 45-65 W
Athlon Gold Pro 3150G[34]
Ryzen 3 3200GE[35] July 7, 2019
OEM
3.3 3.8 Vega 8 512:32:16
8 CU
1.2 1228.8 35 W
Ryzen 3 Pro 3200GE[36] September 30, 2019
OEM
Ryzen 3 3200G[37] July 7, 2019
US $99
3.6 4.0 1.25 1280 45-65 W
Ryzen 3 Pro 3200G[38] September 30, 2019
OEM
Ryzen 5 3350GE July 21, 2020
OEM
4 (8) 3.3 3.9 RX Vega 11 704:44:16
11 CU
1.2 35 W
Ryzen 5 Pro 3350GE[39]
Ryzen 5 3350G 3.6 4.0 1.3 1830.4 45-65 W
Ryzen 5 Pro 3350G[40]
Ryzen 5 3400GE[41] July 7, 2019
OEM
3.3 4.0 35 W
Ryzen 5 Pro 3400GE[42] September 30, 2019
OEM
Ryzen 5 3400G[43] July 7, 2019
US $149
3.7 4.2 1.4 1971.2 45-65 W
Ryzen 5 Pro 3400G[44] September 30, 2019
OEM
  1. ^ Unified Shaders : Texture Mapping Units : Render Output Units and Compute Units (CU)
  2. ^ Single-precision performance is calculated from the base (or boost) core clock speed based on a FMA operation.


Mobile[edit]

Model Release
date
Fab CPU GPU Memory support TDP
Cores
(threads)
Clock rate (GHz) Cache Model Config[i] Clock Processing
power
(GFLOPS)[ii]
Base Boost L1 L2 L3
Ryzen 3 3300U[45] 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[46]
1200 MHz 921.6 DDR4-2400
dual-channel
15 W
Ryzen 3 PRO 3300U[47] April 8, 2019
Ryzen 3 3350U[48] January 6, 2019
Ryzen 5 3450U[49] June 2020 4 (8) Vega 8 512:32:16
8 CU[50]
1228.8
Ryzen 5 3500U[51] January 6, 2019 3.7
Ryzen 5 PRO 3500U[52] April 8, 2019
Ryzen 5 3500C[53] September 22, 2020
Ryzen 5 3550H[54] January 6, 2019 35 W
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
Ryzen 7 PRO 3700U[58] April 8, 2019
Ryzen 7 3700C[59] September 22, 2020
Ryzen 7 3750H[60] January 6, 2019 35 W
Ryzen 7 3780U[61] October 2019 Vega 11 704:44:16
11 CU
1971.2 15 W
  1. ^ Unified Shaders : Texture Mapping Units : Render Output Units and Compute Units (CU)
  2. ^ 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. ^ "AMD Ryzen 3 1200AF 12nm Processor". Tom's Hardware.
  14. ^ "AMD Ryzen 3 2300X Processor". AMD.
  15. ^ "AMD Ryzen 5 2500X Processor". AMD.
  16. ^ "AMD Ryzen 5 2600E Processor". AMD.
  17. ^ "AMD Ryzen 5 1600 AF CPU Review & Benchmarks: Best CPU Under $100 in 2020".
  18. ^ "AMD Ryzen 5 2600 Processor". AMD.
  19. ^ "AMD Ryzen 5 2600X Processor". AMD.
  20. ^ "AMD Ryzen 7 2700E Processor". AMD.
  21. ^ "AMD Ryzen 7 2700 Processor". AMD.
  22. ^ "AMD Ryzen 7 PRO 2700 Processor". AMD.
  23. ^ "AMD Ryzen 7 PRO 2700X Processor". AMD.
  24. ^ "AMD Ryzen 7 2700X Processor". AMD.
  25. ^ "AMD Ryzen Threadripper 2920X Processor". AMD.
  26. ^ "AMD Ryzen Threadripper 2950X Processor". AMD.
  27. ^ "AMD Ryzen Threadripper 2970WX Processor". AMD.
  28. ^ "AMD Ryzen Threadripper 2990WX Processor". AMD.
  29. ^ "AMD Athlon PRO 300GE".
  30. ^ "AMD Athlon Silver PRO 3125GE".
  31. ^ "AMD Athlon Gold 3150GE".
  32. ^ "AMD Athlon Gold PRO 3150GE".
  33. ^ "AMD Athlon Gold 3150G".
  34. ^ "AMD Athlon Gold PRO 3150G".
  35. ^ "AMD Ryzen 3 3200GE".
  36. ^ "AMD Ryzen 3 PRO 3200GE".
  37. ^ "AMD Ryzen 3 3200G with Radeon Vega 8 Graphics".
  38. ^ "AMD Ryzen 3 PRO 3200G".
  39. ^ "AMD Ryzen 5 PRO 3350GE".
  40. ^ "AMD Ryzen 5 PRO 3350G".
  41. ^ "AMD Ryzen 5 3400GE".
  42. ^ "AMD Ryzen 5 PRO 3400GE".
  43. ^ "AMD Ryzen 5 3400G".
  44. ^ "AMD Ryzen 5 3400G".
  45. ^ "AMD Ryzen™ 3 3300U Mobile Processor with Radeon™ Vega 6 Graphics". Retrieved 2019-01-06.
  46. ^ "AMD Radeon Vega 6 Mobile Specs | TechPowerUp GPU Database". Techpowerup.com.
  47. ^ "AMD Ryzen™ 3 PRO 3300U Mobile Processor with Radeon™ Vega 6 Graphics".
  48. ^ "AMD Ryzen™ 3 3350U". AMD.
  49. ^ "AMD Ryzen™ 5 3450U Processor".
  50. ^ "AMD Radeon Vega 8 Specs | TechPowerUp GPU Database". Techpowerup.com.
  51. ^ "AMD Ryzen™ 5 3500U Mobile Processor with Radeon™ Vega 8 Graphics".
  52. ^ "AMD Ryzen™ 5 PRO 3500U Mobile Processor with Radeon™ Vega 8 Graphics".
  53. ^ "AMD Ryzen™ 5 3500C".
  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 3700C".
  60. ^ "AMD Ryzen™ 7 3750H Mobile Processor with Radeon™ RX Vega 10 Graphics".
  61. ^ "AMD Ryzen™ 7 3780U Microsoft Surface® Edition".