Zen 2
Zen 2 is the codename for a computer processor microarchitecture by AMD. It is the successor of AMD's Zen and Zen+ microarchitectures, and is fabricated on the 7 nanometer MOSFET node from TSMC. The microarchitecture powers the third generation of Ryzen processors, known as Ryzen 3000 for the mainstream desktop chips (codename "Matisse"), Ryzen 4000U (codename "Renoir") and Ryzen 5000U ("Lucienne") for mobile applications , as Threadripper 3000 for high-end desktop systems,[4][5] and as Ryzen 4000G for accelerated processing units (APUs). The Ryzen 3000 series CPUs were released on 7 July 2019,[6][7] while the Zen 2-based Epyc server CPUs (codename "Rome") were released on 7 August 2019.[8] An additional chipset, the Ryzen 9 3950X, was released in November 2019.[6]
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General information | |
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Launched | July 7, 2019[1] |
Designed by | AMD |
Common manufacturer(s) |
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Cache | |
L1 cache | 64 KiB per core |
L2 cache | 512 KiB per core |
Architecture and classification | |
Min. feature size | 7 nm (TSMC)[2][3] |
Physical specifications | |
Cores |
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Socket(s) | |
Products, models, variants | |
Product code name(s) |
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History | |
Predecessor | Zen+ |
Successor | Zen 3 |
At CES 2019, AMD showed a Ryzen third-generation engineering sample that contained one chiplet with eight cores and 16 threads.[4] AMD CEO Lisa Su also said to expect more than eight cores in the final lineup.[9] At Computex 2019, AMD revealed that the Zen 2 "Matisse" processors would feature up to 12 cores, and a few weeks later a 16 core processor was also revealed at E3 2019, being the aforementioned Ryzen 9 3950X.[10][11]
Zen 2 includes hardware mitigations to the Spectre security vulnerability.[12] Zen 2-based EPYC server CPUs use a design in which multiple CPU dies (up to eight in total) manufactured on a 7 nm process ("chiplets") are combined with a 14 nm I/O die on each multi-chip module (MCM) package. Using this, up to 64 physical cores and 128 total compute threads (with simultaneous multithreading) are supported per socket. This architecture is nearly identical to the layout of the "pro-consumer" flagship processor Threadripper 3990X.[13] Zen 2 delivers about 15% more instructions per clock than Zen and Zen+,[14][15] the 14- and 12-nm microarchitectures utilized on first and second generation Ryzen respectively.
Design
Zen 2 is a significant departure from the physical design paradigm of AMD's previous Zen architectures, Zen and Zen+. Zen 2 moves to a multi-chip module design where the I/O components of the CPU are laid out on its own, separate die, which is also called a chiplet in this context. This separation has benefits in scalability and manufacturability. As physical interfaces don't scale very well with shrinks in process technology, their separation into a different die allows these components to be manufactured using a larger, more mature process node than the CPU dies. The CPU dies (referred to by AMD as core complex dies or CCDs), now more compact due to the move of I/O components onto another die, can be manufactured using a smaller process with fewer manufacturing defects than a larger die would exhibit (since the chances of a die having a defect increases with device (die) size) while also allowing for more dies per wafer. In addition, the central I/O die can service multiple chiplets, making it easier to construct processors with a large number of cores.[13][16][17]
![](../I/Zen2_Microarchitektur.svg.png.webp)
With Zen 2, each CPU chiplet houses 8 CPU cores, arranged in 2 core complexes (CCXs), each of 4 CPU cores. These chiplets are manufactured using TSMC's 7 nanometer MOSFET node and are about 74 to 80 mm2 in size.[16] The chiplet has about 3.9 billion transistors, while the 12 nm I/O die (IOD) is ~125 mm2 and has 2.09 billion transistors.[18] The amount of L3 cache has been doubled to 32 MiB, with each CCX in the chiplet now having access to 16 MiB of L3 compared to the 8 MiB of Zen and Zen+.[19] AVX2 performance is greatly improved by an increase in execution unit width from 128-bit to 256-bit.[20] There are multiple variants of the I/O die: one manufactured on GlobalFoundries 14 nanometer process, and another manufactured using the same company's 12 nanometer process. The 14 nanometer dies have more features and are used for the EPYC Rome processors, whereas the 12 nm versions are used for consumer processors.[16] Both processes have similar feature sizes, so their transistor density is also similar.[21]
AMD's Zen 2 architecture can deliver higher performance at a lower power consumption than Intel's Cascade Lake architecture, with an example being the AMD Ryzen Threadripper 3970X running with a TDP of 140 W in ECO mode delivering higher performance than the Intel Core i9-10980XE running with a TDP of 165 W.[22]
Feature tables
CPUs
CPU features table
APUs
APU features table
Products
On 26 May 2019, AMD announced six Zen 2-based desktop Ryzen processors (codenamed "Matisse"). These included 6-core and 8-core variants in the Ryzen 5 and Ryzen 7 product lines, as well as a new Ryzen 9 line that includes the company's first 12-core and 16-core mainstream desktop processors. [27]
AMD's second generation of Epyc processors, codenamed "Rome", feature up to 64 cores, and were launched on 7 August 2019.[8]
Desktop CPUs
Model | Release date and price |
Fab | Chiplets | Cores (threads) |
Core config[lower-roman 1] | Clock rate (GHz) | Cache | Socket | PCIe lanes |
Memory support |
TDP | |||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Base | Boost | L1 | L2 | L3 | ||||||||||
Entry-level | ||||||||||||||
Ryzen 3 3100[28] | April 21, 2020 $99 |
TSMC 7FF |
1 × CCD 1 × I/O |
4 (8) | 2 × 2 | 3.6 | 3.9 | 32 KiB inst. 32 KiB data per core |
512 KiB per core |
2 × 8 MiB per CCX |
AM4 | 24 (16+4+4) | DDR4-3200 dual-channel |
65 W |
Ryzen 3 3300X[29] | April 21, 2020 $120 |
1 × 4 | 3.8 | 4.3 | 16 MiB | |||||||||
Mainstream | ||||||||||||||
Ryzen 5 3500 | November 15, 2019 OEM (West) Japan ¥16000[30] |
TSMC 7FF |
1 × CCD 1 × I/O |
6 (6) | 2 × 3 | 3.6 | 4.1 | 32 KiB inst. 32 KiB data per core |
512 KiB per core |
2 × 8 MiB per CCX |
AM4 | 24 (16+4+4) | DDR4-3200 dual-channel |
65 W |
Ryzen 5 3500X[31] | October 8, 2019 China ¥1099 |
2 × 16 MiB per CCX | ||||||||||||
Ryzen 5 3600[32] | July 7, 2019 US $199 |
6 (12) | 3.6 | 4.2 | ||||||||||
Ryzen 5 Pro 3600[33] | September 30, 2019 OEM | |||||||||||||
Ryzen 5 3600X[34] | July 7, 2019 US $249 |
3.8 | 4.4 | 95 W | ||||||||||
Ryzen 5 3600XT[35] | July 7, 2020 US $249 |
4.5 | ||||||||||||
Performance | ||||||||||||||
Ryzen 7 Pro 3700[36] | September 30, 2019 OEM |
TSMC 7FF |
1 × CCD 1 × I/O |
8 (16) | 2 × 4 | 3.6 | 4.4 | 32 KiB inst. 32 KiB data per core |
512 KiB per core |
2 × 16 MiB per CCX |
AM4 | 24 (16+4+4) | DDR4-3200 dual-channel |
65 W[lower-roman 2] |
Ryzen 7 3700X[38] | July 7, 2019 US $329 | |||||||||||||
Ryzen 7 3800X[39] | July 7, 2019 US $399 |
3.9 | 4.5 | 105 W | ||||||||||
Ryzen 7 3800XT[40] | July 7, 2020 US $399 |
4.7 | ||||||||||||
Enthusiast | ||||||||||||||
Ryzen 9 3900[41] | October 8, 2019 OEM |
TSMC 7FF |
2 × CCD 1 × I/O |
12 (24) | 4 × 3 | 3.1 | 4.3 | 32 KiB inst. 32 KiB data per core |
512 KiB per core |
4 × 16 MiB per CCX |
AM4 | 24 (16+4+4) | DDR4-3200 dual-channel |
65 W |
Ryzen 9 Pro 3900[42] | September 30, 2019 OEM | |||||||||||||
Ryzen 9 3900X[43] | July 7, 2019 US $499 |
3.8 | 4.6 | 105 W[lower-roman 3] | ||||||||||
Ryzen 9 3900XT[44] | July 7, 2020 US $499 |
4.7 | ||||||||||||
Ryzen 9 3950X[45] | November 25, 2019 US $749 |
16 (32) | 4 × 4 | 3.5 | ||||||||||
Workstation and High-End Desktop | ||||||||||||||
Ryzen Threadripper 3960X[46] | November 25, 2019 US $1399 |
TSMC 7FF |
4 × CCD 1 × I/O |
24 (48) | 8 × 3 | 3.8 | 4.5 | 32 KiB inst. 32 KiB data per core |
512 KiB per core |
8 × 16 MiB per CCX |
sTRX4 | 64 (60+4) | DDR4-3200 quad-channel |
280 W[lower-roman 4] |
Ryzen Threadripper 3970X[48] | November 25, 2019 US $1999 |
32 (64) | 8 × 4 | 3.7 | 4.5 | |||||||||
Ryzen Threadripper 3990X[49] | February 7, 2020 US $3990 |
8 × CCD 1 × I/O |
64 (128) | 16 × 4 | 2.9 | 4.3 | 16 × 16 MiB per CCX | |||||||
Workstation | ||||||||||||||
Ryzen Threadripper Pro 3945WX[50] | July 14, 2020 OEM |
TSMC 7FF |
2 × CCD 1 × I/O |
12 (24) | 4 × 3 | 4.0 | 4.3 | 32 KiB inst. 32 KiB data per core |
512 KiB per core |
4 × 16 MiB per CCX |
sWRX8 | 128 | DDR4-3200 octa-channel |
280 W |
Ryzen Threadripper Pro 3955WX[51] | July 14, 2020 OEM |
16 (32) | 4 × 4 | 3.9 | ||||||||||
Ryzen Threadripper Pro 3975WX[52] | July 14, 2020 OEM |
4 × CCD 1 × I/O |
32 (64) | 8 × 4 | 3.5 | 4.2 | 8 × 16 MiB per CCX | |||||||
Ryzen Threadripper Pro 3995WX[53] | July 14, 2020 OEM |
8 × CCD 1 × I/O |
64 (128) | 16 × 4 | 2.7 | 4.2 | 16 × 16 MiB per CCX |
Desktop APUs
Model | Release date and price |
Fab. | CPU | GPU | Socket | PCIe lanes |
Memory support |
TDP | |||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Cores (threads) |
Core Config[lower-roman 1] | Clock rate (GHz) | Cache | Model | Config.[lower-roman 2] | Clock | Processing power (GFLOPS)[lower-roman 3] | ||||||||||
Base | Boost | L1 | L2 | L3 | |||||||||||||
Ryzen 3 4300GE [54] | 2H 2020 [55] | TSMC 7FF |
4 (8) | 1 × 4 | 3.5 | 4.0 | 32 KiB inst. 32 KiB data per core |
512 KiB per core |
4 MiB | Vega 6 | 384:24:8 6 CU |
1700 MHz | 1305.6 | AM4 | 24 (16+4+4) | DDR4-3200 dual-channel |
35 W |
Ryzen 3 Pro 4350GE[54] | |||||||||||||||||
Ryzen 3 4300G[54] | 3.8 | 4.0 | 65 W | ||||||||||||||
Ryzen 3 Pro 4350G[54] | |||||||||||||||||
Ryzen 5 4600GE[54] | 6 (12) | 2 × 3 | 3.3 | 4.2 | 8 MiB 4 MiB per CCX |
Vega 7 | 448:28:8 7 CU |
1900 MHz | 1702.4 | 35 W | |||||||
Ryzen 5 Pro 4650GE[54] | |||||||||||||||||
Ryzen 5 4600G[54] | 3.7 | 4.2 | 65 W | ||||||||||||||
Ryzen 5 Pro 4650G[54] | |||||||||||||||||
Ryzen 7 4700GE[54] | 8 (16) | 2 × 4 | 3.1 | 4.3 | Vega 8 | 512:32:8 8 CU |
2000 MHz | 2048 | 35 W | ||||||||
Ryzen 7 Pro 4750GE[54] | |||||||||||||||||
Ryzen 7 4700G[54] | 3.6 | 4.4 | 2100 MHz | 2150.4 | 65 W | ||||||||||||
Ryzen 7 Pro 4750G[54] |
- Active core complexes (CCXs) × active cores per CCX.
- Unified shaders : texture mapping units : render output units and compute units (CU)
- Single-precision performance is calculated from the base (or boost) core clock speed based on a FMA operation.
Renoir (4000 series)
Model | Release date |
Fab | CPU | GPU | Socket | PCIe lanes |
Memory support | TDP | ||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Cores (threads) |
Core config[lower-roman 1] | Clock rate (GHz) | Cache | Model, config[lower-roman 2] |
Clock | Processing power (GFLOPS)[lower-roman 3] | ||||||||||
Base | Boost | L1 | L2 | L3 | ||||||||||||
Ryzen 3 4300U[56] | March 16, 2020 | TSMC 7FF |
4 (4) | 1 × 4 | 2.7 | 3.7 | 32 KiB inst. 32 KiB data per core |
512 KiB per core |
4 MiB | AMD Radeon Graphics,
320:20:8 |
1400 MHz | 896 | FP6 | 16 (8+4+4) | DDR4-3200 LPDDR4-4266 dual-channel |
10–25 W |
Ryzen 3 PRO 4450U[57] | May 7, 2020 | 4 (8) | 2.5 | |||||||||||||
Ryzen 5 4500U[58] | March 16, 2020 | 6 (6) | 2 × 3 | 2.3 | 4.0 | 8 MiB 4 MiB per CCX |
AMD Radeon Graphics, 384:24:8 6 CU |
1500 MHz | 1152 | |||||||
Ryzen 5 4600U[59] | 6 (12) | 2.1 | ||||||||||||||
Ryzen 5 PRO 4650U[60] | May 7, 2020 | |||||||||||||||
Ryzen 5 4600HS[61] | March 16, 2020 | 3.0 | 35 W | |||||||||||||
Ryzen 5 4600H[62] | 35–54 W | |||||||||||||||
Ryzen 7 4700U[63] | 8 (8) | 2 × 4 | 2.0 | 4.1 | AMD Radeon Graphics, 448:28:8 7 CU |
1600 MHz | 1433.6 | 10–25 W | ||||||||
Ryzen 7 PRO 4750U[64] | May 7, 2020 | 8 (16) | 1.7 | |||||||||||||
Ryzen 7 4800U[65] | March 16, 2020 | 1.8 | 4.2 | AMD Radeon Graphics, 512:32:8 8 CU |
1750 MHz | 1792 | ||||||||||
Ryzen 7 4800HS[66] | 2.9 | AMD Radeon Graphics, 448:28:8 7 CU |
1600 MHz | 1433.6 | 35 W | |||||||||||
Ryzen 7 4800H[67] | 35–54 W | |||||||||||||||
Ryzen 9 4900HS[68] | 3 | 4.3 | AMD Radeon Graphics, 512:32:8 8 CU |
1750 MHz | 1792 | 35 W | ||||||||||
Ryzen 9 4900H[69] | 3.3 | 4.4 | 35–54 W |
- Active Core Complexes (CCX) × active cores per CCX.
- Unified shaders : texture mapping units : render output units and compute units (CU)
- Single precision performance is calculated from the base (or boost) core clock speed based on a FMA operation.
Lucienne (5000 series)
Model | Release date |
Fab | CPU | GPU | Socket | PCIe lanes |
Memory support | TDP | ||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Cores (threads) |
Core config[lower-roman 1] | Clock rate (GHz) | Cache | Model, config[lower-roman 2] |
Clock | Processing power (GFLOPS)[lower-roman 3] | ||||||||||
Base | Boost | L1 | L2 | L3 | ||||||||||||
Ryzen 3 5300U[70] | January 12, 2021 | TSMC 7FF |
4 (8) | 1 × 4 | 2.6 | 3.8 | 32 KiB inst. 32 KiB data per core |
512 KiB per core |
4 MiB | AMD Radeon Graphics 6 CU |
1500 MHz | - | FP6 | 16 (8+4+4) | DDR4-3200 LPDDR4-4266 dual-channel |
10–25 W |
Ryzen 5 5500U[71] | 6 (12) | 2 × 3 | 2.1 | 4.0 | 8 MiB 4 MiB per CCX |
AMD Radeon Graphics 7 CU |
1800 MHz | |||||||||
Ryzen 7 5700U[72] | 8 (16) | 2 × 4 | 1.8 | 4.3 | 8 MiB 4 MiB per CCX |
AMD Radeon Graphics 8 CU |
1900 MHz |
- Active Core Complexes (CCX) × active cores per CCX.
- Unified shaders : texture mapping units : render output units and compute units (CU)
- Single precision performance is calculated from the base (or boost) core clock speed based on a FMA operation.
Server processors
Common features of these CPUs:
- Codenamed "Rome"
- The number of PCI-E lanes: 128
- Release date: August 7, 2019 except EPYC 7H12 which was released on September 18, 2019
- Memory support: eight-channel DDR4-3200
Model | Release date and price |
Fab | Chiplets | Cores (threads) |
Core config[lower-roman 1] | Clock rate (GHz) | Cache | Socket & configuration |
TDP | ||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Base | Boost | L1 | L2 | L3 | |||||||||
All-core | Max | ||||||||||||
EPYC 7232P | US $450 | 7 nm | 2 × CCD 1 × I/O |
8 (16) | 4 × 2 | 3.1 | 3.2 | 32 KiB inst. 32 KiB data per core |
512 KiB per core |
32 MiB 8 MiB per CCX |
SP3 1P |
120 W | |
EPYC 7302P | US $825 | 4 × CCD 1 × I/O |
16 (32) | 8 × 2 | 3 | 3.3 | 128 MiB 16 MiB per CCX |
155 W | |||||
EPYC 7402P | US $1250 | 24 (48) | 8 × 3 | 2.8 | 3.35 | 180 W | |||||||
EPYC 7502P | US $2300 | 32 (64) | 8 × 4 | 2.5 | 3.35 | ||||||||
EPYC 7702P | US $4425 | 8 × CCD 1 × I/O |
64 (128) | 16 × 4 | 2 | 3.35 | 256 MiB 16 MiB per CCX |
200 W | |||||
EPYC 7252 | US $475 | 2 × CCD 1 × I/O |
8 (16) | 4 × 2 | 3.1 | 3.2 | 64 MiB 16 MiB per CCX |
SP3 2P |
120 W | ||||
EPYC 7262 | US $575 | 4 × CCD 1 × I/O |
8 × 1 | 3.2 | 3.4 | 128 MiB 16 MiB per CCX |
155 W | ||||||
EPYC 7272 | US $625 | 2 × CCD 1 × I/O |
12 (24) | 4 × 3 | 2.9 | 3.2 | 64 MiB 16 MiB per CCX |
120 W | |||||
EPYC 7282 | US $650 | 16 (32) | 4 × 4 | 2.8 | 3.2 | ||||||||
EPYC 7302 | US $978 | 4 × CCD 1 × I/O |
8 × 2 | 3 | 3.3 | 128 MiB 16 MiB per CCX |
155 W | ||||||
EPYC 7352 | US $1350 | 24 (48) | 8 × 3 | 2.3 | 3.2 | ||||||||
EPYC 7402 | US $1783 | 8 × 3 | 2.8 | 3.35 | 180 W | ||||||||
EPYC 7452 | US $2025 | 32 (64) | 8 × 4 | 2.35 | 3.35 | 155 W | |||||||
EPYC 7502 | US $2600 | 8 × 4 | 2.5 | 3.35 | 180 W | ||||||||
EPYC 7532 | US $3350 | 8 × CCD 1 × I/O |
16 × 2 | 2.4 | 3.3 | 256 MiB 16 MiB per CCX |
200 W | ||||||
EPYC 7542 | US $3400 | 4 × CCD 1 × I/O |
8 × 4 | 2.9 | 3.4 | 128 MiB 16 MiB per CCX |
225 W | ||||||
EPYC 7552 | US $4025 | 6 × CCD 1 × I/O |
48 (96) | 12 × 4 | 2.2 | 3.3 | 192 MiB 16 MiB per CCX |
200 W | |||||
EPYC 7642 | US $4775 | 8 × CCD 1 × I/O |
16 × 3 | 2.3 | 3.3 | 256 MiB 16 MiB per CCX |
225 W | ||||||
EPYC 7662 | US $6150 | 64 (128) | 16 × 4 | 2 | 3.3 | 225 W | |||||||
EPYC 7702 | US $6450 | 2 | 3.35 | 200 W | |||||||||
EPYC 7742 | US $6950 | 2.25 | 3.4 | 225 W | |||||||||
EPYC 7H12 | 2.6 | 3.3 | 280 W | ||||||||||
EPYC 7F32 | US $2100 | 4 × CCD 1 × I/O |
8 (16) | 8 × 1 | 3.7 | 3.9 | 128 MiB 16 MiB per CCX |
SP3 1P/2P |
180 W | ||||
EPYC 7F52 | US $3100 | 8 × CCD 1 × I/O |
16 (32) | 16 × 1 | 3.5 | 3.9 | 256 MiB 16 MiB per CCX |
240 W | |||||
EPYC 7F72 | US $2450 | 6 × CCD 1 × I/O |
24 (48) | 12 × 2 | 3.2 | 3.7 | 192 MiB 16 MiB per CCX |
240 W |
- Active Core Complexes (CCX) × Active cores per CCX.
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- "AMD Ryzen™ 5 PRO 4650U". AMD.
- "AMD Ryzen™ 5 4600HS". AMD.
- "AMD Ryzen™ 5 4600H". AMD.
- "AMD Ryzen™ 7 4700U". AMD.
- "AMD Ryzen™ 7 PRO 4750U". AMD.
- "AMD Ryzen™ 7 4800U". AMD.
- "AMD Ryzen™ 7 4800HS". AMD.
- "AMD Ryzen™ 7 4800H". AMD.
- "AMD Ryzen™ 9 4900HS". AMD.
- "AMD Ryzen™ 9 4900H". AMD.
- "AMD Ryzen™ 3 5300U". AMD.
- "AMD Ryzen™ 5 5500U". AMD.
- "AMD Ryzen™ 7 5700U". AMD.
Video game consoles
Gallery
- AMD Ryzen 7 3700X
- Zen 2 I/O Die
- Infrared die shot of the I/O Die
- EPYC I/O Die
- Zen 2 Core Complex Die (CCD)
- AMD EPYC 7702 server processor.
- A delidded AMD 7702 featuring 8 CCDs, with remains of the solder thermal interface material (TIM) on the chiplets.
See also
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