Zen
2018 AMD 12-nanometre processor microarchitecture
Zen+ is the name for a computer processor microarchitecture by AMD . It is the successor to the first gen Zen microarchitecture ,[ 3] and was 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
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] and fixed many hardware bugs found on Zen 1, such as fTPM / PSP bugs on Zen 1, and SVM / SLAT bugs on Zen 1.
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
CPUs
This section is empty. You can help by
adding to it .
(March 2023 )
APUs
APU features table
Products
Desktop CPUs
Common features of Ryzen 2000 desktop CPUs:
Socket: AM4 .
All the CPUs support DDR4 -2933 in dual-channel mode, except for R7 2700E, R5 2600E, R5 1600AF and R3 1200AF which support it at DDR4-2666 speeds.
All the CPUs support 24 PCIe 3.0 lanes. 4 of the lanes are reserved as link to the chipset.
No integrated graphics.
L1 cache : 96 KB (32 KB data + 64 KB instruction) per core.
L2 cache: 512 KB per core.
Fabrication process: GlobalFoundries 12LP (14LP+) .
^ Core Complexes (CCX) × cores per CCX
Common features of Ryzen 2000 HEDT CPUs:
Socket: TR4 .
All the CPUs support DDR4 -2933 in quad-channel mode.
All the CPUs support 64 PCIe 3.0 lanes. 4 of the lanes are reserved as link to the chipset.
No integrated graphics.
L1 cache : 96 KB (32 KB data + 64 KB instruction) per core.
L2 cache: 512 KB per core.
Fabrication process: GlobalFoundries 12LP (14LP+) .
^ Core Complexes (CCX) × cores per CCX
Desktop APUs
Common features of Zen+ based desktop APUs:
Socket: AM4 .
All the CPUs support DDR4 -2933 in dual-channel mode, while Athlon Pro 300GE and Athlon Silver Pro 3125GE support only DDR4-2666.
L1 cache : 96 KB (32 KB data + 64 KB instruction) per core.
L2 cache: 512 KB per core.
All the CPUs support 16 PCIe 3.0 lanes.
Includes integrated GCN 5th generation GPU.
Fabrication process: GlobalFoundries 12LP .
Model
CPU
GPU
TDP
Release date
Release price
Cores (threads )
Clock rate (GHz )
L3 cache (total)
Model[ i]
Config[ ii]
Clock (MHz)
Processing power (GFLOPS )[ iii]
Athlon Pro 300GE
2 (4)
3.4
—
4 MB
Vega 3
192:12:4 3 CU
1100
424.4
35 W
Sep 30, 2019
OEM
Athlon Silver Pro 3125GE
Radeon Graphics
Jul 21, 2020
Athlon Gold 3150GE
4 (4)
3.3
3.8
Athlon Gold Pro 3150GE
Athlon Gold 3150G
3.5
3.9
65 W
Athlon Gold Pro 3150G
Ryzen 3 3200GE
3.3
3.8
Vega 8
512:32:16 8 CU
1200
1228.8
35 W
Jul 7, 2019
Ryzen 3 Pro 3200GE
Sep 30, 2019
Ryzen 3 3200G
3.6
4.0
1250
1280
65 W
Jul 7, 2019
US $99[ 30]
Ryzen 3 Pro 3200G
Sep 30, 2019
OEM
Ryzen 5 Pro 3350GE
3.3
3.9
Radeon Graphics
640:40:16 10 CU
1200
1536
35 W
Jul 21, 2020
Ryzen 5 Pro 3350G
4 (8)
3.6
4.0
1300
1830.4
65 W
Ryzen 5 3400GE
3.3
Vega 11
704:44:16 11 CU
35 W
Jul 7, 2019
Ryzen 5 Pro 3400GE
Sep 30, 2019
Ryzen 5 3400G
3.7
4.2
RX Vega 11
1400
1971.2
65 W
Jul 7, 2019
US $149[ 30]
Ryzen 5 Pro 3400G
Vega 11
Sep 30, 2019
OEM
Mobile APUs
Common features of Ryzen 3000 notebook APUs:
Branding and Model
CPU
GPU
TDP
Release date
Cores (threads )
Clock rate (GHz )
L3 cache (total)
Core config[ i]
Model
Clock (GHz )
Config[ ii]
Processing power (GFLOPS )[ iii]
Ryzen 7
3780U[ 31]
4 (8)
2.3
4.0
4 MB
1 × 4
RX Vega 11
1.4
704:44:16 11 CU
1971.2
15 W
Oct 2019
3750H[ 32]
RX Vega 10
640:40:16 10 CU[ 33]
1792.0
35 W
Jan 6, 2019
3700C[ 34]
15 W
Sep 22, 2020
3700U[ a] [ 35]
Jan 6, 2019
Ryzen 5
3580U[ 36]
2.1
3.7
Vega 9
1.3
576:36:16 9 CU
1497.6
Oct 2019
3550H[ 37]
Vega 8
1.2
512:32:16 8 CU[ 38]
1228.8
35 W
Jan 6, 2019
3500C[ 39]
15 W
Sep 22, 2020
3500U[ a] [ 40]
Jan 6, 2019
3450U[ 41]
3.5
Jun 2020
Ryzen 3
3350U[ 42]
4 (4)
Vega 6
384:24:8 6 CU[ 43]
921.6
Jan 6, 2019
3300U[ a] [ 44]
^ a b c Model also available as PRO version[ 45] [ 46] [ 47] , released April 8, 2019.
Embedded APUs
In 2022, AMD announced the R2000 series of embedded APUs.[ 48]
See also
References
^ a b Cutress, Ian (5 June 2018). "AMD Reveals Threadripper 2" . Anandtech. Retrieved 6 June 2018 .
^ Alcorn, Paul (13 April 2018). "AMD Announces 2nd Generation Ryzen 7 & 5 CPUs: Pricing, Pre-Orders" . Tom's Hardware. Retrieved 13 April 2018 .
^ Cutress, Ian (8 January 2018). "AMD Tech Day at CES" . Anandtech. Retrieved 8 January 2018 .
^ Bright, Peter (8 January 2018). "AMD's 2018 roadmap: Desktop APUs in February, second-generation Ryzen in April" . Ars Technica. Retrieved 9 January 2018 .
^ "AMD Will Use 'New' GlobalFoundries 12nm Node for Future CPUs, GPUs" . ExtremeTech . 2017-09-22. Retrieved 2018-02-04 .
^ 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 .
^ Cutress, Ian (19 April 2018). "The AMD 2nd Gen Ryzen Deep Dive: The 2700X, 2700, 2600X, and 2600 Tested" . Anandtech. Retrieved 18 July 2020 .
^ 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 .
^ 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 .
^ 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 .
^ Bennett, Kyle (1 May 2018). "Precision Boost Overdrive and XFR Enhanced Confusion" . HardOCP. Retrieved 13 August 2018 .
^ AMD (14 April 2018). "2nd Gen AMD Ryzen Processors: XFR 2 and Precision Boost 2" . YouTube . Retrieved 13 August 2018 .
^ a b c d "AMD announces Ryzen 2000 "Pinnacle Ridge" Series" . VideoCardz.net . 13 April 2018. Retrieved 14 May 2024 .
^ "AMD Ryzen 5 PRO 2600 Processor" . AMD .
^ "AMD Ryzen 7 PRO 2700 Processor" . AMD .
^ "AMD Ryzen 7 PRO 2700X Processor" . AMD .
^ Alcorn, Paul (20 December 2019). "That's Ryzen AF: Some Old AMD Chips Might Be Getting a 12nm Makeover" . Tom's Hardware . Retrieved 14 May 2024 .
^ "AMD Ryzen 5 1600AF Specs | TechPowerUp CPU Database" . TechPowerUp . Retrieved 14 May 2024 .
^ "AMD Ryzen 3 1200AF 12nm Processor" . Tom's Hardware .
^ "AMD Ryzen 3 1200" . AMD . Retrieved October 9, 2022 .
^ "AMD Ryzen 5 1600" . AMD . Retrieved October 9, 2022 .
^ "AMD Ryzen Threadripper 2990WX Processor" . AMD .
^ a b c d "AMD Announces 2nd Generation Ryzen Threadripper 2000, up to 32 Cores/64 Threads!" . TechPowerUp . 6 August 2018. Retrieved 30 June 2024 .
^ "AMD Ryzen Threadripper 2970WX Processor" . AMD .
^ "AMD Ryzen Threadripper 2950X Processor" . AMD .
^ "AMD Ryzen Threadripper 2920X Processor" . AMD .
^ "AMD Athlon Desktop Processors with Radeon Graphics" . AMD . Archived from the original on 2020-07-29. Retrieved November 16, 2023 .
^ "AMD Athlon PRO Desktop Processor" . AMD . Archived from the original on 2020-07-29. Retrieved November 16, 2023 .
^ "AMD Ryzen PRO Desktop Processor" . AMD . Archived from the original on 2020-07-29. Retrieved November 16, 2023 .
^ a b Cutress, Dr.Ian (June 10, 2019). "AMD Ryzen 3000 APUs: Up to Vega 11, More MHz, Under $150, Coming July 7th" . AnandTech . Retrieved November 16, 2023 .
^ "AMD Ryzen 7 3780U Microsoft Surface® Edition" .
^ "AMD Ryzen 7 3750H Mobile Processor with Radeon RX Vega 10 Graphics" .
^ "AMD Radeon RX Vega 10 Mobile Specs | TechPowerUp GPU Database" . Techpowerup.com.
^ "AMD Ryzen 7 3700C" .
^ "AMD Ryzen 7 3700U Mobile Processor with Radeon RX Vega 10 Graphics" .
^ "AMD Ryzen 5 3580U Microsoft Surface® Edition" .
^ "AMD Ryzen 5 3550H Mobile Processor with Radeon Vega 8 Graphics" . Retrieved 8 January 2018 .
^ "AMD Radeon Vega 8 Specs | TechPowerUp GPU Database" . Techpowerup.com.
^ "AMD Ryzen 5 3500C" .
^ "AMD Ryzen 5 3500U Mobile Processor with Radeon Vega 8 Graphics" .
^ "AMD Ryzen 5 3450U Processor" .
^ "AMD Ryzen 3 3350U" . AMD .
^ "AMD Radeon Vega 6 Mobile Specs | TechPowerUp GPU Database" . Techpowerup.com.
^ "AMD Ryzen 3 3300U Mobile Processor with Radeon Vega 6 Graphics" . Retrieved 2019-01-06 .
^ "AMD Ryzen 3 PRO 3300U Mobile Processor with Radeon Vega 6 Graphics" .
^ "AMD Ryzen 5 PRO 3500U Mobile Processor with Radeon Vega 8 Graphics" .
^ "AMD Ryzen 7 PRO 3700U Mobile Processor with Radeon Vega 10 Graphics" .
^ Mark Tyson (June 21, 2022). "AMD Ryzen Embedded R2000 Series Doubles Core Count, Boosts Graphics by 81%" . Tom's Hardware .
^ a b "Product Brief: AMD Ryzen Embedded R2000 Series" (PDF) . AMD .
^ Bonshor, Gavin (22 June 2022). "AMD Updates Ryzen Embedded Series, R2000 Series With up to Four Cores and Eight Threads" . www.anandtech.com . Retrieved 18 August 2024 .
Lists Microarchitectures
Current products
Discontinued
Italics indicates an upcoming architecture.
AMD CPU core roadmaps from
K7 to
Zen
Strike-through indicates cancelled processors
Bold names are the microarchitecture names
Italic names are future processors