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AMD Ryzen
General information
LaunchedFebruary 2017
Discontinuedpresent
Marketed byAMD
Designed byAMD
Common manufacturer
Performance
Max. CPU clock rate3.0 GHz to 4.4 GHz
Architecture and classification
Technology node14 nm to 12 nm
MicroarchitectureZen
Zen+
Instruction setAMD64/x86-64, MMX(+), SSE1, SSE2, SSE3, SSSE3, SSE4a, SSE4.1, SSE4.2, AES, CLMUL, AVX, AVX2, FMA3, CVT16/F16C, ABM, BMI1, BMI2, SHA
Physical specifications
Transistors
  • 4.8 billion (per 8 cores)[1]
Cores
  • Up to 32 cores/64 threads
Sockets
Products, models, variants
Product code names
  • Summit Ridge (Desktop)
  • Whitehaven (HEDT)
  • Raven Ridge (APU)
  • Pinnacle Ridge (Desktop)
History
PredecessorFX

Ryzen (/ˈraɪzən/ RY-zən)[2] is a brand[3] of central processing units (CPUs) and accelerated processing units (APUs) marketed and designed by AMD (Advanced Micro Devices).

The brand was introduced in 2017 with products implementing the Zen microarchitecture for the CPU, and the first Ryzen-branded products were officially announced during AMD's New Horizon summit on December 13, 2016.[4] The second generation of Ryzen CPUs feature the Zen+ microarchitecture, built with 12 nm process technology and were released on April 19, 2018.[5]

Product lineup

Zen microarchitecture

Main article: Zen (microarchitecture)

History

In the five years before the release of Ryzen, AMD's direct competitor in the x86-64 consumer-level CPU marketspace, Intel, had continued to grow its market share with the tick-tock cycle of their Intel Core series of chips.[6] Since the release of the Bulldozer microarchitecture in 2011 AMD had fallen behind Intel significantly in both single-core and multi-core CPU performance benchmarks.[7] While AMD had completed a die shrink and revision of the Bulldozer architecture, performance and sales had fallen significantly against competing Intel products.[citation needed] Ryzen is the first consumer-level implementation of the new Zen microarchitecture.[8][9] Ryzen CPUs offered stronger multi-threaded performance and weaker single-threaded performance relative to comparable Intel CPUs.[citation needed] The Ryzen CPUs returned AMD to the high-end desktop CPU market, offering performance able to compete with Intel's Core i7 series of CPUs.[10] AMD's high-performance x86-core Zen architecture delivers >52% improvement in instructions-per-clock cycle over the previous-generation AMD core, without increasing power consumption.[11] Since the release of Ryzen CPUs, AMD's CPU market share has increased.[6]

CPUs: Summit Ridge / Whitehaven

  • Socket AM4 or Socket TR4 for Threadripper.[12][13]
  • Memory support DDR4-2666 ×2 Single Rank, DDR4-2400 ×2 Dual Rank, DDR4-2133 ×4 Single Rank, or DDR4-1866 ×4 Dual Rank. (With compatible DIMM quantities doubled on Threadripper due to its dual IMCs, and thus quad-channel memory support).[12][14]
  • Instructions Sets: x87, MMX, SSE, SSE2, SSE3, SSSE3, SSE4.1, SSE4.2, AES, CLMUL, AVX, AVX2, FMA3, CVT16/F16C, ABM, BMI1, BMI2, SHA.[15]
  • Transistors: 4.8 billion per 8-core "Zeppelin" die[1]
  • Die size: 192 mm2[16]
  • Stepping: B1[17]
  • Ryzen CPUs feature unlocked multipliers across the board for overclocking. All Ryzen products also support temperature-based auto-overclocking, dubbed "XFR" (eXtended Frequency Range); with "X"-branded Ryzen products having twice the potential amount of XFR boost as non-"X" models (100 MHz vs 50 MHz).[18] This is despite the fact that AMD doesn't list the latter as supporting XFR at all. Also of note that these values are doubled on Threadripper; with "X" models having 200 MHz, rather than the usual 100 MHz of XFR boost.[19]
  • AMD officially revealed their codename "Summit Ridge" Ryzen CPUs on February 22, 2017.[20] "Whitehaven" is planned to be a large, LGA "S3" socket, HEDT (high-end desktop) variant with 16 cores and 32 threads.[21]
  • Ryzen is launching in conjunction with a line of stock coolers, the "Wraith Spire", "Wraith Stealth" and "Wraith Max". This line succeeds the original "Wraith" cooler, which was positively received when released in mid-2016.[22] The "Wraith Stealth" and "Wraith Spire" are included with certain Ryzen CPUs; the "Stealth" is a low-profile unit meant for the lower-end CPUs and is rated for a TDP of 65 W, whereas the "Spire" is the mainstream cooler with a TDP rating of 95 W and modest headroom for overclocking, along with optional RGB lighting on certain models. The "Wraith Max" is a larger, aftermarket unit intended to handle more intensive overclocks than the "Spire".
  • AMD's SenseMI Technology, which uses AMD Infinity Control Fabric to offer the following features:[12][23][24]
    • AMD Pure Power reduces the entire ramp of processor voltage and clock speed, for light loads.
    • AMD Precision Boost increases the processor voltage and clock speed by 100–200 MHz if three or more cores are active (five or more, in the case of Threadripper, and by 300 MHz); and significantly further when less than three are active (less than five, in the case of Threadripper).[25][26]
    • AMD XFR ("eXtended Frequency Range") increases the processor voltage and clock speed beyond the maximum Precision Boost, when sufficient cooling is available (described in detail above).[27]
    • Neural Net Prediction and Smart Prefetch use AI inside the processor to optimize instruction workflow and cache management.

Common features of Ryzen 1000 desktop CPUs:

  • Socket: AM4.
  • All the CPUs support DDR4-2666 in dual-channel mode.
  • 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.
  • Node/fabrication process: GlobalFoundries 14 LP.
Branding and Model Cores
(threads) 		Clock rate (GHz) L3 cache
(total) 		TDP Core
config[i] 		Release
date 		Launch
price[a]
Base PBO
1–2
(≥3) 		XFR[28]
1–2
Ryzen 7 1800X[29] 8 (16) 3.6 4.0
(3.7) 		4.1 16 MB 95 W 2 × 4 March 2, 2017 US $499
PRO 1700X 3.4 3.8
(3.5) 		3.9 June 29, 2017 OEM
1700X[29] March 2, 2017 US $399
PRO 1700 3.0 3.7
(3.2) 		3.75 65 W June 29, 2017 OEM
1700[29] March 2, 2017 US $329
Ryzen 5 1600X[30] 6 (12) 3.6 4.0
(3.7) 		4.1 95 W 2 × 3 April 11, 2017 US $249
PRO 1600 3.2 3.6
(3.4) 		3.7 65 W June 29, 2017 OEM
1600[30] April 11, 2017 US $219
1500X[30] 4 (8) 3.5 3.7
(3.6) 		3.9 2 × 2 US $189
PRO 1500 June 29, 2017 OEM
1400[30] 3.2 3.4
(3.4) 		3.45 8 MB April 11, 2017 US $169
Ryzen 3 1300X[31] 4 (4) 3.5 3.7
(3.5) 		3.9 July 27, 2017 US $129
PRO 1300 June 29, 2017 OEM
PRO 1200 3.1 3.4
(3.1) 		3.45
1200[31] July 27, 2017 US $109
  1. ^ Manufacturer suggested retail price at launch
  1. ^ Core Complexes (CCX) × cores per CCX


APUs: Raven Ridge

AMD's CEO, Lisa Su, confirmed during a March 2017 Reddit AMA on /r/AMD that Zen-based APUs would also be branded Ryzen.[32] Traditionally, AMD's APUs were branded separately from their CPUs. The branding was later clarified as Ryzen Mobile, and AMD stated that the products would have higher CPU and GPU performance and lower power than the previous generation of APUs.[33]

In May 2017, AMD demonstrated a Ryzen Mobile APU with four Zen CPU cores and Vega-based GPU,[34] the first Ryzen Mobile APUs were officially released in October 2017.[35] It is the first chip by AMD that features the Video Core Next ASIC.

  • Transistors: 4.95 billion[36]
  • Die size: 210 mm2[36]
  • Fifth-generation GCN-based GPU
  • 16 external PCIe 3.0 lanes (4 to chipset). 8 internal PCIe 3.0 lanes for iGPU.
Mobile
Model Release
date 		Fab CPU GPU Socket PCIe
lanes 		Memory
support 		TDP
Cores
(threads) 		Clock rate (GHz) Cache Model Config[i] Clock
(MHz) 		Processing
power
(GFLOPS)[ii]
Base Boost L1 L2 L3
Athlon Pro 200U 2019 GloFo
14LP 		2 (4) 2.3 3.2 64 KB inst.
32 KB data
per core 		512 KB
per core 		4 MB Radeon Vega 3 192:12:4
3 CU 		1000 384 FP5 12 (8+4) DDR4-2400
dual-channel 		12–25 W
Athlon 300U Jan 6, 2019 2.4 3.3
Ryzen 3 2200U Jan 8, 2018 2.5 3.4 1100 422.4
Ryzen 3 3200U Jan 6, 2019 2.6 3.5 1200 460.8
Ryzen 3 2300U Jan 8, 2018 4 (4) 2.0 3.4 Radeon Vega 6 384:24:8
6 CU 		1100 844.8
Ryzen 3 Pro 2300U May 15, 2018
Ryzen 5 2500U Oct 26, 2017 4 (8) 3.6 Radeon Vega 8 512:32:16
8 CU 		1126.4
Ryzen 5 Pro 2500U May 15, 2018
Ryzen 5 2600H Sep 10, 2018 3.2 DDR4-3200
dual-channel 		35–54 W
Ryzen 7 2700U Oct 26, 2017 2.2 3.8 Radeon RX Vega 10 640:40:16
10 CU 		1300 1664 DDR4-2400
dual-channel 		12–25 W
Ryzen 7 Pro 2700U May 15, 2018 Radeon Vega 10
Ryzen 7 2800H Sep 10, 2018 3.3 Radeon RX Vega 11 704:44:16
11 CU 		1830.4 DDR4-3200
dual-channel 		35–54 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.
Desktop

In January 2018, AMD also announced the first two desktop processors with an integrated Vega GPU under the Raven Ridge codename, which were released in February.[37]


Model Release date
& price 		Fab Thermal Solution CPU GPU Socket PCIe lanes DDR4
memory
support 		TDP
(W)
Cores
(threads) 		Clock rate (GHz) Cache Model Config[i] Clock
(GHz) 		Processing
power
(GFLOPS)[ii]
Base Boost L1 L2 L3
Athlon 200GE[38] September 6, 2018
US $55 		GloFo
14LP 		AMD 65W thermal solution 2 (4) 3.2 — 64 KB inst.
32 KB data
per core 		512 KB
per core 		4 MB Vega 3 192:12:4
3 CU 		1.0 384 AM4 16 (8+4+4) 2667
dual-channel 		35
Athlon Pro 200GE[39] September 6, 2018
OEM 		OEM
Athlon 220GE[40] December 21, 2018
US $65 		AMD 65W thermal solution 3.4
Athlon 240GE[41] December 21, 2018
US $75 		3.5
Athlon 3000G[42] November 19, 2019
US $49 		1.1 424.4
Athlon 300GE[43] July 7, 2019
OEM 		OEM 3.4
Athlon Silver 3050GE[44] July 21, 2020
OEM
Ryzen 3 Pro 2100GE[45] c. 2019

OEM

3.2 ? ? 2933
dual-channel
Ryzen 3 2200GE[6] April 19, 2018
OEM 		4 (4) 3.2 3.6 Vega 8 512:32:16
8 CU 		1126
Ryzen 3 Pro 2200GE[46] May 10, 2018
OEM
Ryzen 3 2200G February 12, 2018
US $99 		Wraith Stealth 3.5 3.7 45–
65
Ryzen 3 Pro 2200G[47] May 10, 2018
OEM 		OEM
Ryzen 5 2400GE[48] April 19, 2018
OEM 		4 (8) 3.2 3.8 RX Vega 11 704:44:16
11 CU 		1.25 1760 35
Ryzen 5 Pro 2400GE[49] May 10, 2018
OEM
Ryzen 5 2400G[50] February 12, 2018[51][52]
US $169 		Wraith Stealth 3.6 3.9 45–
65
Ryzen 5 Pro 2400G[53] May 10, 2018
OEM 		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.
Embedded

In February 2018, AMD also announced the V1000 series of embedded Zen+Vega APUs with four SKUs.[54]

Model CPU GPU Memory
support 		TDP Release
date 		Release
price
Cores
(threads) 		Clock rate (GHz) Cache[a] Model Config[b]
(cores) 		Clock Processing power (GFLOPS)[c]
Base Boost XFR L2 L3
V1202B 2 (4) 2.3 3.2 Un­known 1 MB Un­known RX Vega 3 192:12:16
(3) 		1000 MHz 384 DDR4-2400 (Dual channel) 12–25 W Un­known Un­known
V1605B 4 (8) 2.0 3.6 Un­known 2 MB RX Vega 8 512:32:16
(8) 		1100 MHz 1126.4 Un­known Un­known
V1756B 3.25 Un­known Un­known 1300 MHz 1331.2 DDR4-3200 (Dual channel) 35–54 W Un­known Un­known
V1807B 3.35 3.8 Un­known RX Vega 11 704:44:16
(11) 		1830.4 Un­known Un­known
  1. ^ AMD defines 1 kilobyte (KB) as 1024 bytes, and 1 megabyte (MB) as 1024 kilobytes.[55]
  2. ^ Unified Shaders : Texture Mapping Units : Render Output Units
  3. ^ Single-precision performance is calculated from the base (or boost) core clock speed based on a FMA operation.

Zen+ microarchitecture

CPUs: Pinnacle Ridge

The first Ryzen 2000 series of CPU products based on the Zen+ microarchitecture, code named Pinnacle Ridge, were announced for preorder on April 13, 2018[56] and launched six days later.

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+).
Branding and Model Cores
(threads) 		Clock rate (GHz) L3 cache
(total) 		TDP Core
config[i] 		Release
date 		Launch
price[a]
Base PB2
Ryzen 7 2700X[57][b] 8 (16) 3.7 4.3 16 MB 105 W 2 × 4 April 19, 2018 US $329
2700[57][b] 3.2 4.1 65 W US $299
2700E 2.8 4.0 45 W September 19, 2018 OEM
Ryzen 5 2600X[57] 6 (12) 3.6 4.2 95 W 2 × 3 April 19, 2018 US $229
2600[57][b] 3.4 3.9 65 W US $199
2600E 3.1 4.0 45 W September 19, 2018 OEM
1600 (AF)[61][c] 3.2 3.6 65 W October 11, 2019[62] US $85
2500X 4 (8) 3.6 4.0 8 MB 1 × 4 September 10, 2018 OEM
Ryzen 3 2300X 4 (4) 3.5
1200 (AF)[63][c] 3.1 3.4 April 21, 2020 US $60
  1. ^ Core Complexes (CCX) × cores per CCX
  1. ^ Manufacturer suggested retail price at launch
  2. ^ a b c Model also available as PRO version as 2600[58], 2700[59], 2700X[60], released on September 19, 2018.
  3. ^ a b AF models are 12 nm Zen+ refresh of 14 nm Zen models (1200[64] and 1600[65] with "AF" instead of "AE" in the part numbers).

Compatibility

Although AMD "verified" the ability for computers with Ryzen processors to boot Windows 7 and Windows 10, Microsoft officially supports Ryzen only on computers running Windows 10 per support policies. Windows Update blocks updates from being installed on Ryzen systems running versions older than Windows 10 – although that restriction can be avoided either by not installing its respective update, or be bypassed entirely with an unofficial patch.[66] And while AMD initially stated that they would only provide Ryzen chipset drivers for Windows 10,[67] AMD's Ryzen / Threadripper chipset driver package does list and include official drivers for Windows 7.[68] Ryzen processors are compatible with Linux; the full performance of Ryzen is enabled in kernel version 4.10 or newer.[69]

It should also be noted that while the X370 platform is touted to support Windows 7, there are a number of caveats. For example, older copies of the Windows 7 installation DVD has to be slipstreamed with a hotfix to enable support NVMe storage devices if the user wishes to install Windows onto an NVMe SSD[70], and if installing from a USB thumb drive, the installation media also requires slipstreaming AMD's USB3.0 drivers into the boot image; the Ryzen USB3.0 chipset is also not compatible with the Windows standard EHCI driver[71].

Initial reception

The first Ryzen 7 1700, 1700X, and 1800X processors debuted in early March 2017 and were generally well received by hardware reviewers.[72][73][74] Ryzen was the first brand new architecture from AMD in five years, and without very much initial fine-tuning or optimization, it ran generally well for reviewers.[75] Initial Ryzen chips ran well with software and games already on the market, performing exceptionally well in workstation scenarios, and well in most gaming scenarios. Compared to Piledriver-powered FX chips, Zen-powered Ryzen chips ran cooler, much faster, and used less power. IPC uplift was eventually gauged to be 52% higher than Excavator, which was two full generations ahead of the architecture still being used in AMD's FX-series desktop predecessors like the FX-8350 and FX-8370.[1] Power consumption and heat were found to be highly competitive with Intel, and the included Wraith coolers were generally competitive with higher-priced aftermarket solutions.

Ryzen's multi-threaded performance, in some cases while using Blender or other open-source software, was around four times the performance of the FX-8370.[76] One reviewer found that Ryzen chips would typically outperform competing Intel i7 processors for a fraction of the price when all eight cores were utilized.[76]

One complaint among a subset of reviewers, however, was that Ryzen processors fell behind their Intel counterparts when running older games, or running certain newer games at mainstream resolutions such as 720p or 1080p.[77] AMD acknowledged the gaming performance deficit at low resolutions during a Reddit "Ask Me Anything Q & A thread", where they explained that updates and patches were being developed.[78] Subsequent updates to Ashes of the Singularity: Escalation and Rise of the Tomb Raider increased frame rates 17–31% on Ryzen systems.[79][80] id Software announced in April 2017 it would optimize its future games to make use of the greater parallelism available on Ryzen CPUs.[81]

It has been suggested that low core utilization resulted in Ryzen processors being underutilized, therefore reflecting lower than expected scores, especially when coupled with the fact that Zen's slightly lower IPC relies on full core utilization.[82][83][84] However, AMD and others have argued thread scheduling is not the fundamental issue to Windows 10 performance.[85][86] There were also issues with AM4 motherboards and their BIOS, which was resulting in many Ryzen chips being underclocked, partially shut off, or generally hindered by BIOS bugs.[citation needed]

Known issues

Ryzen faced hard system locks when an application executes certain sequences of FMA3 instructions.[87] AMD stated in mid-March 2017 that the issue would be fixed via new microcode included in UEFI updates from motherboard manufacturers.[88]

Some early Ryzen processors produce segmentation faults on certain workloads on Linux, especially while compiling code with GCC.[89] AMD offered to replace the affected processors with newer ones that are not affected by the problem.[90]

Ryzenfall

In early 2018, an Israeli firm called CTS Labs claimed to have discovered several flaws in the Ryzen components ecosystem: Ryzenfall, which affects the Ryzen desktop CPUs; Fallout, which affects the Epyc CPUs; Masterkey, which affects both CPU classes; and Chimera, which affects the ASMedia-designed USB 3.1 silicon found in the Ryzen desktop SoCs.[91] The unusual behavior of the security firm, disclosing the vulnerabilities without giving AMD time to react, has raised concerns and questions regarding the legitimacy of the exploits.[92]

Further questions were raised when independent investigators dug into the history of the company and analyzed the video they have uploaded to the web.[93] Ultimately, investigators uncovered an article by Viceroy Research condemning AMD on the exploit and noted how the article was published less than half an hour after the exploits were revealed. Given the polish of the article which appears to be written many days in advance, and wording of the article which suggests that it is financially motivated, many were quick to accuse the exploit as a smear campaign engineered by Viceroy to short-sell AMD's stocks.[94]

Additionally, some theorized that the exploit is part of a smear campaign by rival Intel,[92] although no solid proof has been presented for the argument and Intel itself has released a press release stating that it had no involvement in the affair.[93]

AMD had since announced that while the exploits are real, they are severely overplayed as physical access to the server is required to exploit the flaws. AMD has also announced that the flaws can be fixed via microcode updates and that they are working on a fix for the issue.[95]

See also

References

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