Ryzen

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"Threadripper" redirects here. For the sewing tool, see seam ripper.

AMD Ryzen
General information
LaunchedFebruary 2017 (Released March 2, 2017)[1]
Marketed byAMD
Designed byAMD
Common manufacturer(s)
Performance
Max. CPU clock rate3.0 GHz to 4.7 GHz
Architecture and classification
Technology node14nm to 7nm
MicroarchitectureZen
Zen+
Zen 2
Zen 3
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 for Zen & Zen+ (per 8 core "Zeppelin" die)[1]
    5.89 billion (1x CCD) or
    9.69 billion (2x CCD) for Zen 2
    (3.8 billion per 8-core 7nm "CCD" & 2.09 billion per 12nm "I/O die") [2]
Cores
  • Up to 64 cores/128 threads
Socket(s)
History
Predecessor(s)FX

Ryzen (/ˈraɪzən/ RY-zən)[3] is a brand[4] of x86-64 microprocessors designed and marketed by Advanced Micro Devices, Inc. (AMD) for desktop, mobile and embedded platforms based on the Zen microarchitecture and its successors. It consists of central processing units marketed for mainstream, enthusiast and workstation segments and accelerated processing units (APUs) marketed for mainstream and entry-level segments and embedded applications. Ryzen is especially significant for AMD, since it is a completely new design, and since it marks the corporation's return to the high end desktop CPU market. AMD's competitor Intel has controlled this section of the market for almost ten years, back when Intel released the Conroe/Core microarchitecture, which overtook AMD's Athlon 64 as the cutting edge of performance in the market.

AMD officially announced the first 14nm Ryzen products during its New Horizon summit on December 13, 2016 and introduced them the following February with the first processors being 8-core, 16 thread CPUs released in March 2 2017 to public market availability as the Ryzen 1000 series.[5] The second generation of Ryzen CPUs featuring the Zen+ microarchitecture, an incremental improvement built on a 12nm process technology, was released in April 2018 and featured a 3% IPC and 6%[6] uplift in clockspeed respectively with up to 10% aggregate performance increase over the original Ryzen that first released in 2017 with Ryzen 2000 series branding.[7] The third generation, based on Zen 2 and featuring more significant design improvements and a further shrink to TSMC's 7nm process, was launched on July 7 2019, powering the Ryzen 3000 series, and featured a self-reported 15% IPC increase. In late 2019, the Zen 3 core has been revealed to be an entirely new architecture rumored to be built on TSMC's 7nm+ EUV node (though all that's officially confirmed at this point is the use of an "enhanced 7nm" process), which is currently undergoing engineering sampling as of Q4 2019 with production yields exceeding expectations.

While the majority of Ryzen-branded products are for use with the Socket AM4 platform, in August 2017 AMD added a line of high core count desktop processors aimed at the workstation market with the Ryzen Threadripper branding. Threadripper uses the larger TR4 and sTRX4 sockets, which support more memory channels and PCI Express lanes.[8][9]

In December 2019, AMD started putting out first generation Ryzen products built using the second generation Zen+ architecture.[10] The most notable example is Ryzen 5 1600, with newest batches, having "AF" identifier instead of its usual "AE", being essentially a rebadged Ryzen 5 2600 with the same specifications as the original Ryzen 5 1600.

History

In the five years before the release of Ryzen, AMD's direct competitor in the x86 and x86-64 consumer-level CPU marketspace, Intel, had continued to grow its market share with the tick-tock improvement cycle of its Core series of microprocessors.[11] Since the release of its Bulldozer microarchitecture in 2011, AMD's CPUs had fallen progressively behind those from Intel in both single- and multi-core performance.[12] Despite a die shrink and several revisions of the Bulldozer architecture, performance and power efficiency failed to catch up with Intel's competing products.[citation needed]

Ryzen is the consumer-level implementation of the newer Zen microarchitecture, a complete redesign that marked the return of AMD to the high-end CPU market, offering a product stack able to compete with Intel at every level.[13][14] Having more processing cores, Ryzen processors offer greater multi-threaded performance at the same price point relative to Intel's Core processors.[15] The Zen architecture delivers more than 52% improvement in instructions-per-clock cycle over the previous-generation Bulldozer AMD core, without increasing power consumption.[16] The changes to instruction set also makes it binary-compatible with Intel's Broadwell, smoothing the transition for users.[17]

Threadripper, which is geared for high end desktops (HEDT), wasn't developed as part of a business plan or a specific roadmap; instead, a small enthusiast team inside AMD saw an opportunity that something could be developed between the Ryzen and Epyc CPU roadmaps that would put the crown of performance on AMD. After some progress was made in their spare time, the project was greenlit and put in an official roadmap by 2016.[18]

Since the release of Ryzen, AMD's CPU market share has increased while Intel appears to have stagnated.[11]

Features

CPUs

CPU features table

APUs

APU features table

Product lineup

Ryzen 1000

CPUs

  • Socket AM4 for Ryzen and Socket TR4 for Ryzen Threadripper.[19][20]
  • Based on first generation Zen. Ryzen CPUs based on Summit Ridge architecture. Threadripper based on Whitehaven architecture.
  • 4.8 billion transistors per 192 mm2[21] 8-core "Zeppelin" die[1] with one die being used for Ryzen and two for Ryzen Threadripper.
  • Stepping: B1[22]
  • Memory support:
    • Ryzen dual-channel: DDR4–2666 ×2 single rank, DDR4–2400 ×2 dual rank, DDR4–2133 ×4 single rank, or DDR4–1866 ×4 dual rank.[19][23]
    • Ryzen Threadripper quad-channel: DDR4–2666 ×4 single rank, DDR4–2400 ×4 dual rank, DDR4–2133 ×8 single rank, or DDR4–1866 ×8 dual rank.
  • Instructions Sets: x87, MMX, SSE, SSE2, SSE3, SSSE3, SSE4.1, SSE4.2, AES, CLMUL, AVX, AVX2, FMA3, CVT16/F16C, ABM, BMI1, BMI2, SHA.[17]
  • All Ryzen-branded CPUs (except Pro variants) feature unlocked multipliers.
  • AMD's SenseMI Technology monitors the processor continuously and uses Infinity Control Fabric to offer the following features:[19][24][25]
    • Pure Power reduces the entire ramp of processor voltage and clock speed, for light loads.
    • 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).[26]
    • XFR (eXtended Frequency Range) aims to maintain the average clock speed closer to the maximum Precision Boost, when sufficient cooling is available.[27]
    • Neural Net Prediction and Smart Prefetch use perceptron based neural branch prediction inside the processor to optimize instruction workflow and cache management.
  • Ryzen launched in conjunction with a line of stock coolers for Socket AM4: the Wraith Stealth, Wraith Spire and Wraith Max. This line succeeds the original AMD Wraith cooler, which was released in mid-2016.[28] The Wraith Stealth is a bundled low-profile unit meant for the lower-end CPUs with a rating for a TDP of 65 W, whereas the Wraith Spire is the bundled mainstream cooler with a TDP rating of 95 W, along with optional RGB lighting on certain models. The Wraith Max is a larger cooler incorporating heatpipes, rated for a 140W TDP.

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) 		Thermal solution Clock rate (GHz) L3 cache
(total) 		TDP Core
config[i] 		Release
date 		Launch
price[a]
Base PBO
1–2
(≥3) 		XFR[29]
1–2
Ryzen 7 1800X[30] 8 (16) Wraith Max (OEM only) 3.6 4.0
(3.7) 		4.1 16 MB 95 W 2 × 4 March 2, 2017 US $499
PRO 1700X Wraith Spire 3.4 3.8
(3.5) 		3.9 June 29, 2017 OEM
1700X[30] Wraith Max (OEM only) March 2, 2017 US $399
PRO 1700 Wraith Spire 3.0 3.7
(3.2) 		3.75 65 W June 29, 2017 OEM
1700[30] Wraith Spire LED (retail)
Wraith Spire (OEM) 		March 2, 2017 US $329
Ryzen 5 1600X[31] 6 (12) Wraith Max (OEM only) 3.6 4.0
(3.7) 		4.1 95 W 2 × 3 April 11, 2017 US $249
PRO 1600 Wraith Spire 3.2 3.6
(3.4) 		3.7 65 W June 29, 2017 OEM
1600[31] April 11, 2017 US $219
1500X[31] 4 (8) 3.5 3.7
(3.6) 		3.9 2 × 2 US $189
PRO 1500 June 29, 2017 OEM
1400[31] Wraith Stealth 3.2 3.4
(3.4) 		3.45 8 MB April 11, 2017 US $169
Ryzen 3 1300X[32] 4 (4) 3.5 3.7
(3.5) 		3.9 July 27, 2017 US $129
PRO 1300 Wraith Spire June 29, 2017 OEM
PRO 1200 3.1 3.4
(3.1) 		3.45
1200[32] Wraith Stealth July 27, 2017 US $109
  1. ^ Manufacturer suggested retail price at launch
  1. ^ Core Complexes (CCX) × cores per CCX


Ryzen 2000

CPUs

The first of the Ryzen 2000 series of CPU products based on the 12nm Zen+ microarchitecture, code named Pinnacle Ridge and featuring improved Precision Boost 2 technology,[33] were announced for preorder on April 13, 2018[34] and launched six days later. Zen+ based Ryzen CPUs are based on Pinnacle Ridge architecture, while Threadripper CPUs are based on the Colfax microarchitecture. The first of the 2000 series of Ryzen Threadripper products, introducing Precision Boost Overdrive technology,[27] followed in August. The Ryzen 7 2700X was bundled with the new Wraith Prism cooler. 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) 		Thermal Solution Clock rate (GHz) L3 cache
(total) 		TDP Core
config[i] 		Release
date 		Launch
price[a]
Base PB2
Ryzen 7 2700X[35][b] 8 (16) Wraith Prism 3.7 4.3 16 MB 105 W 2 × 4 April 19, 2018 US $329
2700[35][b] Wraith Spire (LED) 3.2 4.1 65 W US $299
2700E OEM 2.8 4.0 45 W September 19, 2018 OEM
Ryzen 5 2600X[35] 6 (12) Wraith Spire (non-LED) 3.6 4.2 95 W 2 × 3 April 19, 2018 US $229
2600[35][b] Wraith Stealth 3.4 3.9 65 W US $199
2600E OEM 3.1 4.0 45 W September 19, 2018 OEM
1600 (AF)[39][c] Wraith Stealth 3.2 3.6 65 W October 11, 2019[40] US $85
2500X 4 (8) OEM 3.6 4.0 8 MB 1 × 4 September 10, 2018 OEM
Ryzen 3 2300X 4 (4) 3.5
1200 (AF)[41][c] Wraith Stealth 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[36], 2700[37], 2700X[38], released on September 19, 2018.
  3. ^ a b AF models are 12 nm Zen+ refresh of 14 nm Zen models (1200[42] and 1600[43] with "AF" instead of "AE" in the part numbers).

APUs

See also: AMD Accelerated Processing Unit
Desktop

In January 2018, AMD announced the first two Ryzen desktop APUs with integrated Radeon Vega graphics under the Raven Ridge codename. These were based on first generation Zen architecture. The Ryzen 3 2200G and the Ryzen 5 2400G were released in February.[44] Common features of Ryzen 2000 desktop APUs:

Branding and Model CPU GPU TDP Release
date 		Launch
price[a]
Cores
(threads) 		Clock rate (GHz) L3 cache
(total) 		Model Clock
(GHz) 		Config[i] Processing
power
(GFLOPS)[ii]
Base Boost
Ryzen 5 2400G[45][b] 4 (8) 3.6 3.9 4 MB RX Vega 11 1.25 704:44:16
11 CU 		1760 46–65 W February 12, 2018 US $169
2400GE[b] 3.2 3.8 35 W April 19, 2018 OEM
Ryzen 3 2200G[45][b] 4 (4) 3.5 3.7 Vega 8 1.1 512:32:16
8 CU 		1126 46–65 W February 12, 2018 US $99
2200GE[b] 3.2 3.6 35 W April 19, 2018 OEM
PRO 2100GE[46] 2 (4) — Vega 3 1.0 192:12:4
3 CU[47] 		384 2019
  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.
  1. ^ Manufacturer suggested retail price at launch
  2. ^ a b c d Model also available as PRO version; 2200GE, 2200G, 2400GE, 2400G, released on May 14, 2018 for OEM only.[48]
Mobile

In May 2017, AMD demonstrated a Ryzen mobile APU with four Zen CPU cores and Radeon Vega-based GPU.[49] The first Ryzen mobile APUs, codenamed Raven Ridge, were officially released in October 2017.[50]

  • 4.95 billion[51] transistors on a 210 mm2 die,[51] based on a modified 14nm Zeppelin die where four of the cores are replaced by an integrated fifth-generation GCN-based GPU.
  • Precision Boost 2[33]
  • 16 external PCIe 3.0 lanes (four each to chipset and M.2 socket; eight to a PCIe slot). 16 internal PCIe 3.0 lanes for the integrated GPU and on-board I/O.[citation needed]

In 2019, AMD released some new dual core Zen mobile parts branded as 300 or 3000. Template:AMD Ryzen 2000 mobile APUs

Embedded
Great Horned Owl

In February 2018, AMD announced the V1000 series of embedded Zen+ Vega APUs, based on the Great Horned Owl architecture, with four SKUs.[52]

Model Release
date 		Fab CPU GPU Memory
support 		TDP Junction
temp.
range
(°C)
Cores
(threads) 		Clock rate (GHz) Cache Model Config[i] Clock
(GHz) 		Processing
power
(GFLOPS)[ii]
Base Boost L1 L2 L3
V1202B February 2018 GloFo
14LP 		2 (4) 2.3 3.2 64 KB inst.
32 KB data
per core 		512 KB
per core 		4 MB Vega 3 192:12:16
3 CU 		1.0 384 DDR4-2400
dual-channel 		12–25 W 0–105
V1404I December 2018 4 (8) 2.0 3.6 Vega 8 512:32:16
8 CU 		1.1 1126.4 -40–105
V1500B 2.2 — — 0–105
V1605B February 2018 2.0 3.6 Vega 8 512:32:16
8 CU 		1.1 1126.4
V1756B 3.25 DDR4-3200
dual-channel 		35–54 W
V1780B December 2018 3.35 —
V1807B February 2018 3.8 Vega 11 704:44:16
11 CU 		1.3 1830.4
  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.
Banded Kestrel

In April 2019, AMD announced another line of embedded Zen+Vega APUs, namely the Ryzen Embedded R1000 series with two SKUs.[53]

Model Release
date 		Fab CPU GPU Memory
support 		TDP
Cores
(threads) 		Clock rate (GHz) Cache Model Config[i] Clock
(GHz) 		Processing
power
(GFLOPS)[ii]
Base Boost L1 L2 L3
R1102G February 25, 2020 GloFo
14LP 		2 (2) 1.2 2.6 64 KB inst.
32 KB data
per core 		512 KB
per core 		4 MB Vega 3 192:12:4
3 CU 		1.0 384 DDR4-2400
single-channel 		6 W
R1305G 2 (4) 1.5 2.8 DDR4-2400
dual-channel 		8-10 W
R1505G April 16, 2019 2.4 3.3 12–25 W
R1606G 2.6 3.5 1.2 460.8
  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.

Ryzen 3000

CPUs

On May 27, 2019, AMD launched its third generation of Ryzen processors using its chiplet-based Zen 2 architecture at Computex in Taipei. In this generation, Ryzen CPUs utilize the Matisse microarchitecture, while Threadrippers are based on the Castle Peak microarchitecture. The chiplet design separates the CPU cores, fabricated on TSMC's 7FF process, and the I/O, fabricated on GlobalFoundries' 12nm process, and connects them via Infinity Fabric.[54] The Ryzen 3000 series uses the same AM4 socket as earlier models and is the first CPU to offer PCIe version 4 connectivity.[55] The new architecture offers a 15% instruction-per-clock (IPC) uplift and a reduction in energy usage. Other improvements include a doubling of the L3 cache size, a re-optimized L1 instruction cache, a larger op. cache, double the floating point performance, improved branch prediction, and better instruction pre-fetching.[54] The six-, eight- and 12-core SKUs became generally available on July 7, 2019. On September 20, 2019 AMD announced that third generation Ryzen Threadripper processors with core counts starting at 24 would be launched in November.[56]

The Ryzen Threadripper 3990X, part of Castle Peak generation of CPUs, has currently the world's largest number of both cores and threads available in consumer-oriented CPUs - 64 and 128, respectively. The competing Intel Core i9-10980XE processor has only 18 cores and 36 threads. Another competitor, the workstation-oriented Intel Xeon W-3275 and W-3275M, has 28 cores and 56 threads and were more expensive when launched. Common features of Ryzen 3000 desktop CPUs:

  • Socket: AM4.
  • All the CPUs support DDR4-3200 in dual-channel mode.
  • L1 cache: 64 KB (32 KB data + 32 KB instruction) per core.
  • L2 cache: 512 KB per core.
  • All the CPUs support 24 PCIe 4.0 lanes. 4 of the lanes are reserved as link to the chipset.
  • No integrated graphics.
  • Fabrication process: TSMC 7FF.
Branding and Model Cores
(threads) 		Thermal Solution Clock rate (GHz) L3 cache
(total) 		TDP Chiplets Core
config[i] 		Release
date 		MSRP
Base Boost
Ryzen 9 3950X 16 (32) N/A 3.5 4.7 64 MB 105 W[ii] 2 × CCD
1 × I/OD 		4 × 4 Nov 25, 2019 US $749
3900XT 12 (24) 3.8 4 × 3 Jul 7, 2020 US $499
3900X Wraith Prism 4.6 Jul 7, 2019
3900[a] OEM 3.1 4.3 65 W Oct 8, 2019 OEM
Ryzen 7 3800XT 8 (16) N/A 3.9 4.7 32 MB 105 W 1 × CCD
1 × I/OD 		2 × 4 Jul 7, 2020 US $399
3800X Wraith Prism 4.5 Jul 7, 2019
3700X[a] 3.6 4.4 065 W[iii] US $329
Ryzen 5 3600XT 6 (12) N/A 3.8 4.5 95 W 2 × 3 Jul 7, 2020 US $249
3600X Wraith Spire (non-LED) 4.4 Jul 7, 2019
3600[a] Wraith Stealth 3.6 4.2 65 W US $199
3500X[59] 6 (6) 4.1 Oct 8, 2019 China
¥1099
3500 OEM 16 MB Nov 15, 2019 OEM (West)
Japan
¥16000[60]
Ryzen 3 3300X 4 (8) Wraith Stealth 3.8 4.3 1 × 4 Apr 21, 2020 US $119
3100 3.6 3.9 2 × 2 US $99
  1. ^ Core Complexes (CCXs) × cores per CCX
  2. ^ Ryzen 9 3900X and Ryzen 9 3950X may consume over 145 W under load.[57]
  3. ^ Ryzen 7 3700X may consume 90 W under load.[58]
  1. ^ a b c Model also available as PRO 3600, PRO 3700, PRO 3900, released on September 30, 2019 for OEMs.

The 4-, 6- and 8-core processors have one core chiplet. The 12- and 16-core processors have two core chiplets. In all cases the I/O die is the same.[54]

The Threadripper 24- and 32-core processors have four core chiplets. The 64-core processor has eight core chiplets. All Threadripper processors use the same I/O die.

APUs

Both mobile and desktop APUs are based on the Picasso microarchitecture, a 12 nm refresh of Raven Ridge, offering a modest increase in clock speeds (up to an additional 300 MHz maximum boost), Precision Boost 2, an up to 3% increase in IPC from the move to the Zen+ core with its reduced cache and memory latencies, and newly added solder thermal interface material for the desktop parts.[61]

Desktop

Common features of Ryzen 3000 desktop APUs:

Branding and Model CPU GPU TDP Release
date 		MSRP
Cores
(threads) 		Clock rate (GHz) L3 cache
(total) 		Model Clock
(GHz) 		Config[i] Processing
power
(GFLOPS)[ii]
Base Boost
Ryzen 5 PRO 3400G 4 (8) 3.7 4.2 4 MB Radeon
RX Vega 11 		1.4 704:44:8
11 CU 		1971.2 65 W Sep 30, 2019 OEM
3400G[62] Jul 7, 2019 US $149
PRO 3400GE 3.3 4.0 1.3 1830.4 35 W Sep 30, 2019 OEM
PRO 3350G 3.6 Radeon
Vega 10 		640:40:8
10 CU 		1664 65 W Jul 21, 2020
PRO 3350GE 4 (4) 3.3 3.9 1.2 1536 35 W
Ryzen 3 PRO 3200G 3.6 4.0 Radeon
Vega 8 		1.25 512:32:8
8 CU 		1280 65 W Sep 30, 2019
3200G[62] Jul 7, 2019 US $99
3200GE 3.3 3.8 1.2 1228.8 35 W Jul 7, 2019 OEM
PRO 3200GE Sep 30, 2019
  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

In 2019, AMD first released the Ryzen 3000 APUs, consisting only of quad core parts. Then in January 2020, they announced value dual core mobile parts, codenamed Dalí, including the Ryzen 3 3250U. Template:AMD Ryzen 3000 mobile APUs

Ryzen 4000

CPUs

Desktop Ryzen 4000 CPUs, based on the Zen 3 microarchitecture, are expected to be released in 2020.[63][64] They use an improved 7 nm manufacturing process. Mainstream Ryzen 4000 CPU cores are codenamed Vermeer. Enthusiast/workstation Threadripper 4000 CPU cores are codenamed Genesis.

APUs

Mobile

Zen 2 APUs, based on the 7 nm Renoir microarchitecture, commercialized as Ryzen 4000.[65][66][67] Common features of Ryzen 4000 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]
Base Boost
Ryzen 9 4900H 8 (16) 3.3 4.4 8 MB 2 × 4 Radeon
Graphics
[a] 		1.75 512:32:8
8 CU 		1792 35–54 W Mar 16, 2020
4900HS 3.0 4.3 35 W
Ryzen 7 4800H[68] 2.9 4.2 1.6 448:28:8
7 CU 		1433.6 35–54 W
4800HS 35 W
4980U[b] 2.0 4.4 1.95 512:32:8
8 CU 		1996.8 10–25 W Apr 13, 2021
4800U 1.8 4.2 1.75 1792 Mar 16, 2020
4700U[c] 8 (8) 2.0 4.1 1.6 448:28:8
7 CU 		1433.6
Ryzen 5 4600H[69] 6 (12) 3.0 4.0 2 × 3 1.5 384:24:8
6 CU 		1152 35–54 W
4600HS[70] 35 W
4680U[b] 2.1 448:28:8
7 CU 		1344 10–25 W Apr 13, 2021
4600U[c] 384:24:8
6 CU 		1152 Mar 16, 2020
4500U 6 (6) 2.3
Ryzen 3 4300U[c] 4 (4) 2.7 3.7 4 MB 1 × 4 1.4 320:20:8
5 CU 		896
  1. ^ Core Complexes (CCX) × cores per CCX
  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.
  1. ^ All of the iGPUs are branded as AMD Radeon Graphics.
  2. ^ a b Only found on the Microsoft Surface Laptop 4.
  3. ^ a b c Model also available as PRO version as 4450U,[71] 4650U,[72] 4750U,[73] released May 7, 2020.

Initial reception

The first Ryzen 7 (1700, 1700X, and 1800X) processors debuted in early March 2017 and were generally well received by hardware reviewers.[74][75][76] 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.[77] 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] Though Zen fell short of Intel's Kaby Lake in terms of IPC, and therefore single-threaded throughput, it compensated by offering more cores to applications that can use them. 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 1800X'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, or nearly double that of the i7 7700K.[78] 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.[78]

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.[79] AMD acknowledged the gaming performance deficit at low resolutions during a Reddit "Ask Me Anything" thread, where it explained that updates and patches were being developed.[80] Subsequent updates to Ashes of the Singularity: Escalation and Rise of the Tomb Raider increased frame rates by 17 to 31% on Ryzen systems.[81][82] Publisher id Software announced in April 2017 it would optimize its future games to make use of the greater parallelism available on Ryzen CPUs.[83]

It has been suggested that low threaded applications often result in Ryzen processors being underutilized, producing lower than expected benchmark scores, due to the fact that Zen relies on its core count to make up for its lower IPC rating than that of Kaby Lake.[84][85][86] However, AMD and others have argued thread scheduling is not the fundamental issue to Windows 10 performance.[87][88] Early AM4 motherboards were also hindered by BIOS bugs and poor DDR4 memory support.[citation needed]

Operating system support

Windows

AMD verified that computers with Ryzen CPUs can boot Windows 7 and Windows 8 but on newer hardware, including AMD Ryzen and Intel Kaby Lake and later, Microsoft only officially supports the use of Windows 10. Windows Update blocks updates from being installed on newer systems running older versions of Windows, though that restriction can be circumvented with an unofficial patch.[89]

Although AMD initially announced that Ryzen chipset drivers would not be provided for Windows 7,[90] its chipset driver packages do in fact list and include them.[91]

Linux

The full performance of Ryzen processors is available with Linux kernel version 4.10 or newer.[92]

Known issues

Spectre

Like nearly all modern high performance microprocessors, Ryzen was susceptible to the "Spectre" vulnerabilities. The vulnerabilities can be mitigated without hardware changes via microcode updates and operating system workarounds, but the mitigations incur a performance penalty.[93] AMD Ryzen and Epyc suffer a zero to 9% penalty from the mitigations, depending on workload, comparing favorably with a penalty of in some cases more than 50% for Intel Core and Xeon processors,[94][95] in part as a result of the AMD processors not requiring mitigation against the related Meltdown vulnerability.[96]

Launched in 2019, Zen 2 includes hardware mitigations against the Spectre V4 speculative store bypass vulnerability.[54][97]

Segmentation fault

Some early shipments of Ryzen 1000 series processors produced segmentation faults on certain workloads on Linux, especially while compiling code with GCC.[98] AMD offered to replace the affected processors with newer ones that are not affected by the problem.[99]

Alleged issues by CTS Labs

In early 2018, an Israeli cyber-security consultancy firm called CTS Labs stated that they had discovered several major flaws in the Ryzen components ecosystem,[100] publicly disclosing them after giving AMD 24 hours to respond and raising concerns and questions regarding their legitimacy,[101][102] though they were later confirmed by two separate security firms.[103] AMD has since stated that while the flaws are real and would be fixed via microcode updates, they were severely overplayed as physical access to the hardware is required to exploit them.[104]

See also

References

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External links

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