AMD Radeon 400 series

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AMD Radeon RX 400 Series
AMD Radeon RX 400 Series logo.png
Release date29 June 2016
Codename
  • Polaris
ArchitectureGCN 4th gen
Cards
Entry-levelRadeon RX 460
Mid-rangeRadeon RX 470
Radeon RX 480
API support
Direct3D
OpenCLOpenCL 2.0 [1]
OpenGLOpenGL 4.5 (4.6 Windows 7+ and Adrenalin 18.4.1+)[2] [3] [4] [5][6]
Vulkan
History
PredecessorRadeon R5/R7/R9 300 series
SuccessorRadeon RX 500 series

The Radeon RX 400 series is a series of graphics cards made by AMD. These cards were the first to feature the Polaris GPUs, using the new 14 nm[10] FinFET manufacturing process. The Polaris family initially included two new chips in the Graphics Core Next (GCN) family (Polaris 10 and Polaris 11). Polaris implements the 4th generation of the Graphics Core Next instruction set, and shares commonalities with the previous GCN microarchitectures.

Naming[edit]

The RX prefix is used for cards that offer over 1.5 teraflops of performance and 80 GB/s of memory throughput (with memory compression), and achieve at least 60 FPS at 1080p in popular games such as Dota 2 and League of Legends. Otherwise, it will be omitted. Like previous generations, the first numeral in the number refers to the generation (4 in this case) and the second numeral in the number refers to the tier of the card, of which there shall be five. Tier 4, the weakest tier in the 400 series, will lack the RX prefix and feature a 64-bit memory bus. Tiers 5 and 6 will have both RX prefixed and non-RX prefixed cards, indicating that while they will both feature a 128-bit memory bus and be targeted at 1080p gaming, the latter will fall short 1.5 teraflops of performance. Tiers 7 and 8 will each have a 256-bit memory bus and will be marketed as 1440p cards. The highest tier, tier 9, will feature a memory bus greater than 256-bit and shall be aimed at 4K gaming. Finally, the third numeral will indicate whether the card is in its first or second revision with either a 0 or 5, respectively. Therefore, for example, the RX 460 indicates that it has at least 1.5 teraflops of performance, 100 GB/s of memory throughput, has a 128-bit memory bus and will be able to achieve 60 FPS in the previously mentioned games at 1080p.[11]

OpenCL (API)[edit]

OpenCL accelerates many scientific Software Packages against CPU up to factor 10 or 100 and more. Open CL 1.0 to 1.2 are supported for all Chips with Terascale and GCN Architecture. OpenCL 2.0 is supported with GCN 2nd Gen. or 1.2 and higher) [12] For OpenCL 2.1 and 2.2 only Driver Updates are necessary with OpenCL 2.0 conformant Cards.

Vulkan (API)[edit]

API Vulkan 1.0 is supported for all with GCN Architecture. Vulkan 1.1 (GCN 2nd Gen. or 1.2 and higher) will be supported with actual drivers in 2018.[13]

New features[edit]

This series is based on the fourth generation GCN architecture. It includes new hardware schedulers,[14] a new primitive discard accelerator,[15] a new display controller,[16] and an updated UVD that can decode HEVC at 4K resolutions at 60 frames per second with 10 bits per color channel.[16] On December 8, 2016, AMD released Crimson ReLive drivers (Version 16.12.1), which make GCN-GPUs support VP9 decode acceleration up to 4K@60 Hz and twinned with support for Dolby Vision and HDR10.[17][18]

Chips[edit]

Polaris[edit]

Polaris 10 features 2304 stream processors across 36 Compute Units (CUs),[19] and supports up to 8GB of GDDR5 memory on a 256-bit memory interface. The GPU replaces the mid-range Tonga segment of the Radeon M300 line. According to AMD, their prime target with the design of Polaris was energy efficiency: Polaris 10 was initially planned to be a mid-range chip, to be featured in the RX 480, with a TDP of around 110-135W[20] compared to its predecessor R9 380's 190W TDP. Despite this, the Polaris 10 chip is anticipated to run the latest DirectX 12 games "at a resolution of 1440p with a stable 60 frames per second."[20]

Polaris 11, on the other hand, is to succeed the "Curacao" GPU which powers various low-to-mid-range cards. It features 1024 stream processors over 16 CUs, coupled with up to 4GB of GDDR5 memory on a 128 bit memory interface.[21][22] Polaris 11 has a TDP of 75W.[20][22]

Reviews[edit]

Many reviewers praised the performance of the RX 480 8GB when evaluated in light of its $239 release price. The Tech Report stated that the RX 480 is the fastest card for the $200 segment at the time of its launch.[23] HardOCP gave this card an Editor's Choice Silver award.[24] PC Perspective gave it the PC Perspective Gold Award.[25]

RX 480 reference card PCI Express power limit violations[edit]

Some reviewers discovered that the AMD Radeon RX 480 violates the PCI Express power draw specifications, which allows a maximum of 75 watts being drawn from the motherboard's PCI Express slot. Chris Angelini of Tom's Hardware noticed that in a stress test it can draw up to an average of 90 watts from the slot and 86 watts in a typical gaming load.[26] The peak usage can be up to 162 watts and 300 watts altogether with the power supply in a gaming load.[26] TechPowerUp corroborated these results by noting it can also draw up to 166 watts from the power supply, past the limit of 75 watts for a 6-pin PCI Express power connector.[27] Ryan Shrout of PC Perspective did a follow-up test after other reports and found out his review sample takes 80-84 watts from the motherboard at stock speed, and that the other PCI Express slots' 12 volt power supply pins were supplying only 11.5 volts during load on his Asus ROG Rampage V Extreme motherboard.[28] He was not concerned about the voltage droop due to the specification's 8% voltage tolerance, but did note of possible problems in systems where multiple overclocked RX 480 cards are running in quad CrossFire, or in motherboards that are not designed to withstand high currents, such as budget and older models.[28]

AMD has released a driver that reprograms the voltage regulator module to draw less power from the motherboard, allowing the power draw from the motherboard to pass the PCI Express specification.[29] While this worsens the overage on the 6-pin power connector, that violation is not much of a concern because these connectors have a greater safety margin in their power rating.[29] The amount of power drawn from on the connector is dependent a newly introduced "compatibility mode" in the driver. When on, compatibility mode reduces the total power consumption of the card, allowing both power sources to operate closer their ratings. Standard mode yields essentially unchanged performance, while compatibility mode results in performance drops within the error of benchmarks.[30] Some RX 480 cards designed by AMD's partners include an 8-pin power connector which can provide more power than the stock design.[31][32]

Chipset table[edit]

Desktop[edit]

Model
(Codename)
Launch Architecture
(Fab)
Transistors
Die Size
Core Fillrate[a][b][c] Processing power[a][d]
(GFLOPS)
Memory TBP (W) Bus interface Release Price (USD)
Config[e] Clock[a] (MHz) Texture (GT/s) Pixel (GP/s) Single Double Bus type
& width
Size (GiB) Clock (MT/s) Band-
width (GB/s)
Radeon
R5 430[34][35]
(Oland Pro)
June 2016 GCN 1st gen
(28 nm)
1040×106
90 mm2
384:24:8 730
780
17.52
18.72
5.84
6.24
560
599
37.4 DDR3
GDDR5
128-bit
1
2
1800
4500
28.8
72
50 PCIe 3.0 ×8 OEM
Radeon
R5 435[34][36]
(Oland)
June 2016 320:20:8 1030 20.6 8.24 659 41.2 DDR3
64-bit
2 2000 16 50 OEM
Radeon
R7 430[37][38]
(Oland Pro)
June 2016 384:24:8 730
780
17.52
18.72
5.84
6.24
560
599
37.4 DDR3
GDDR5
128-bit
1
2
4
1800
4500
28.8
72
50 OEM
Radeon
R7 435[37][39]
(Oland)
June 2016 320:20:8 920 18.4 7.36 589 36.8 DDR3
64-bit
2 2000 16 50 OEM
Radeon
R7 450[37][40]
(Cape Verde Pro)
June 2016 1500×106
123 mm2
512:32:16 1050 33.6 16.8 1075 65.2 GDDR5
128-bit
2 4500 72 65 PCIe 3.0 ×16 OEM
Radeon
RX 455[37][41]
(Bonaire Pro)
June 2016 GCN 2nd gen
(28 nm)
2080×106
160 mm2
768:48:16 1050 50.4 16.8 1613 100.8 GDDR5
128-bit
2 6500 104 100 OEM
Radeon
RX 460[42][43][44][22][45]
(Baffin)
August 2016 GCN 4th gen
(14 nm)
3000×106
123 mm2
896:56:16 1090
1200
61
67.2
17.4
19.2
1953
2150
122
132
GDDR5
128-bit
2
4
7000 112 <75 PCIe 3.0 x8 $109 (2 GB)
$139 (4 GB)
Radeon
RX 470D[46]
(Ellesmere)
October 2016
(China Only)
5700×106
232 mm2
1792:112:32 926
1206
103.7
135.1
29.6
38.6
3319
4322
207
270
GDDR5
256-bit
4 7000 224 120 PCIe 3.0 ×16 CNY ¥1299
Radeon
RX 470[42][44][22]
(Ellesmere Pro)
August 2016 2048:128:32 926
1206
118.5
154.4
29.6
38.6
3793
4940
237
309
GDDR5
256-bit
4
8
6600 211 120 $179
Radeon
RX 480[47][48][49][50]
(Ellesmere XT)
June 2016 2304:144:32 1120
1266
161.3
182.3
35.8
40.5
5161
5834
323
365
GDDR5
256-bit
4
8
7000
8000
224
256
150 $199 (4 GB)
$239 (8 GB)
  1. ^ a b c Boost values (if available) are stated below the base value in italic.
  2. ^ Texture fillrate is calculated as the number of Texture Mapping Units multiplied by the base (or boost) core clock speed.
  3. ^ Pixel fillrate is calculated as the number of Render Output Units multiplied by the base (or boost) core clock speed.
  4. ^ Precision performance is calculated from the base (or boost) core clock speed based on a FMA operation.
  5. ^ Unified Shaders : Texture Mapping Units : Render Output Units


Mobile[edit]

Model
(Codename)
Launch Architecture
(Fab)
Core Fillrate[a][b][c] Processing power[a][d]
(GFLOPS)
Memory TDP
Config[e] Clock[a] (MHz) Texture (GT/s) Pixel (GP/s) Bus type
& width
Size (GiB) Clock (MHz) Band-
width (GB/s)
Radeon
R5 M420[51]
(Jet Pro)
15 May 2016 GCN 1st gen
(28 nm)
320:20:8 780
855
15.6
17.1
6.24
6.84
499
547
DDR3
64-bit
2 1000 16.0 ~20 W
Radeon
R5 M430[52]
(Exo Pro)
15 May 2016 320:20:8 1030
?
20.6 8.2 659.2
659.2
DDR3
64-bit
2 1000 14.4 18 W
Radeon
R7 M435[53]
(Jet Pro)
15 May 2016 320:20:8 780
855
15.6
17.1
6.24
6.84
499
547
GDDR5
64-bit
4 1000 32 ~20 W
Radeon
R7 M440[54]
(Meso Pro)
15 May 2016 320:20:8 1021
?
20.4 8.17 653
653
DDR3
64-bit
4 1000 16 ~20 W
Radeon
R7 M445[55]
(Meso Pro)
14 May 2016 320:20:8 780
920
15.6
18.4
6.24
7.36
499
589
GDDR5
64-bit
4 1000 32 ~20 W
Radeon
R7 M460[56][57]
(Meso XT)
April 2016 384:24:8 1100
1125
26.4
27.0
8.8
9.00
844
864
DDR3
64-bit
2 900 14.4 Unknown
Radeon
RX 460[58]
(Baffin)
August 2016 GCN 4th gen
(14 nm)
896:56:16 Unknown Unknown Unknown Unknown GDDR5
128-bit
2 1750 112 35 W?
Radeon
R7 M465[59][60]
(Litho XT)
May 2016 GCN 1st gen
(28 nm)
384:24:8 825
960
19.8
23.0
6.6
7.68
634
737
GDDR5
128-bit
4 1150 32 Unknown
Radeon
R7 M465X[61]
(Tropo XT)
May 2016 512:32:16 900
925
28.8
29.6
14.4
14.80
921
947
GDDR5
128-bit
4 1125 72 Unknown
Radeon
R9 M470[62]
(Strato Pro)
May 2016 GCN 2nd gen
(28 nm)
768:48:16 900
1000
43.2
48.0
14.4
16.00
1382
1536
GDDR5
128-bit
4 1500 96 ~75 W
Radeon
R9 M470X[63]
(Strato XT)
May 2016 896:56:16 1000
1100
56.0
61.6
16.00
17.60
1792
1971
GDDR5
128-bit
4 1500 96 ~75 W
Radeon
RX 470[64]
(Ellesmere Pro)
August 2016 GCN 4th gen
(14 nm)
2048:128:32 Unknown Unknown Unknown Unknown GDDR5
256-bit
4 1650 211 85 W?
Radeon
RX 480M
(Baffin)
TBA 1024:xx:xx Unknown Unknown Unknown Unknown GDDR5
128-bit
Unknown Unknown Unknown 35 W
Radeon
R9 M485X[65]
(Antigua XT)
May 2016 GCN 3rd gen
(28 nm)
2048:128:32 723 92.5 23.14 2961 GDDR5
256-bit
8 1250 160 ~100 W
  1. ^ a b c Boost values (if available) are stated below the base value in italic.
  2. ^ Texture fillrate is calculated as the number of Texture Mapping Units multiplied by the base (or boost) core clock speed.
  3. ^ Pixel fillrate is calculated as the number of Render Output Units multiplied by the base (or boost) core clock speed.
  4. ^ Precision performance is calculated from the base (or boost) core clock speed based on a FMA operation.
  5. ^ Unified Shaders : Texture Mapping Units : Render Output Units


Radeon Feature Matrix[edit]

The following table shows features of Radeon-branded GPU microarchitectures.

R100 R200 R300 R400 R500 R600 RV670 R700 Evergreen Northern
Islands
Southern
Islands
Sea
Islands
Volcanic
Islands
Arctic
Islands
Vega
Released Apr 2000 Aug 2001 Sep 2002 May 2004 Oct 2005 May 2007 Nov 2007 Jun 2008 Sep 2009 Oct 2010 Jan 2012 Sep 2013 Jun 2015 Jun 2016 Jun 2017
AMD support Ended Current
Instruction set Not publicly known TeraScale instruction set GCN instruction set
Microarchitecture TeraScale 1 (VLIW5) TeraScale 2 (VLIW5) TeraScale 3 (VLIW4) GCN 1st gen GCN 2nd gen GCN 3rd gen GCN 4th gen GCN 5th gen
Type Fixed pipeline[a] Programmable pixel & vertex pipelines Unified shader model
Direct3D 7.0 8.1 9.0
11 (9_2)
9.0b
11 (9_2)
9.0c
11 (9_3)
10.0
11 (10_0)
10.1
11 (10_1)
11 (11_0) 11 (11_1)
12 (11_1)
11 (12_0)
12 (12_0)
11 (12_1)
12 (12_1)
Shader model N/A 1.4 2.0+ 2.0b 3.0 4.0 4.1 5.0 5.1
6.0
OpenGL 1.3 2.0[b] 3.3 4.4[c] 4.6 with GLSL 4.5 (Linux 4.5+)
Vulkan N/A Linux Mesa 17+
Win 7+: 1.0
1.1
OpenCL N/A Close to Metal 1.1 1.2 2.0 Windows 7+ Adrenalin (1.2 in Linux, 2.0 and 2.1 WIP mostly in Linux ROCm)
HSA N/A Yes
Power saving ? PowerPlay PowerTune PowerTune & ZeroCore Power
Video decoder ASIC N/A Avivo/UVD UVD+ UVD 2 UVD 2.2 UVD 3 UVD 4 UVD 4.2 UVD 5.0 or 6.0 UVD 6.3 UVD 7[66][d]
Video encoding ASIC N/A VCE 1.0 VCE 2.0 VCE 3.0 or 3.1 VCE 3.4 VCE 4.0[66][d]
TrueAudio N/A Via dedicated DSP Via shaders
FreeSync N/A 1
2
HDCP[e] ? 1.4 1.4
2.2
PlayReady[e] N/A 3.0
Max. displays[f] 1–2 2 2–6
Max. resolution ? 2–6 × 2560×1600 2–6 × 4096×2160 @ 60 Hz 2–6 × 5120×2880 @ 60 Hz 3 × 7680×4320 @ 60 Hz[67]
/drm/radeon[g] Yes N/A
/drm/amdgpu[g] N/A Experimental[68] Yes
  1. ^ The Radeon 100 Series has programmable pixel shaders, but do not fully comply with DirectX 8 or Pixel Shader 1.0. See article on R100's pixel shaders.
  2. ^ These series do not fully comply with OpenGL 2+ as the hardware does not support all types of non power of two (NPOT) textures.
  3. ^ OpenGL 4+ compliance requires supporting FP64 shaders and these are emulated on some TeraScale chips using 32-bit hardware.
  4. ^ a b The UVD and VCE were replaced by the Video Core Next (VCN) ASIC in the Raven Ridge APU implementation of Vega.
  5. ^ a b To play protected video content, it also requires card, operating system, driver, and application support. A compatible HDCP display is also needed for this. HDCP is mandatory for the output of certain audio formats, placing additional constraints on the multimedia setup.
  6. ^ More displays may be supported with native DisplayPort connections, or splitting the maximum resolution between multiple monitors with active converters.
  7. ^ a b DRM (Direct Rendering Manager) is a component of the Linux kernel. Support in this table refers to the most current version.

See also[edit]

References[edit]

  1. ^ a b "AMD Radeon Software Crimson Edition 16.6.2 Release Notes". AMD. Retrieved 2018-04-20.
  2. ^ "AMD Radeon Software Crimson Edition 16.3 Release Notes". AMD. Retrieved 2018-04-20.
  3. ^ "AMDGPU-PRO Driver for Linux Release Notes". 2016. Archived from the original on 2016-12-11. Retrieved 2018-04-23.
  4. ^ "Mesamatrix". mesamatrix.net. Retrieved 2018-04-22.
  5. ^ "RadeonFeature". X.Org Foundation. Retrieved 2018-04-20.
  6. ^ https://www.geeks3d.com/20180501/amd-adrenalin-18-4-1-graphics-driver-released-opengl-4-6-vulkan-1-1-70/
  7. ^ "Radeon Software Adrenalin Edition 18.3.4 Release Notes". AMD. Retrieved 2018-04-20.
  8. ^ "Radeon™ Software for Linux® with Vulkan® 1.1 support". AMD. Retrieved 2018-04-21.
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  11. ^ WhyCry (June 30, 2016). "AMD Radeon RX 400 series naming scheme explained". Videocardz.com. Retrieved June 30, 2016.
  12. ^ https://www.khronos.org/conformance/adopters/conformant-products
  13. ^ https://www.khronos.org/conformance/adopters/conformant-products
  14. ^ Shrout, Ryan (June 29, 2016). "The AMD Radeon RX 480 Review - The Polaris Promise". PC Perspective. p. 2. Retrieved August 12, 2016.
  15. ^ Angelini, Chris (June 29, 2016). "AMD Radeon RX 480 8GB Review". Tom's Hardware. p. 1. Retrieved August 11, 2016.
  16. ^ a b Angelini, Chris (June 29, 2016). "AMD Radeon RX 480 8GB Review". Tom's Hardware. p. 2. Retrieved August 11, 2016.
  17. ^ AMD. "Radeon Software Crimson ReLive Edition 16.12.1 Release Notes". amd.com. amd.com. Retrieved 2016-12-29.
  18. ^ Jon Martindale. "AMD Crimson ReLive drivers should improve all GCN cards 8th Dec". kitguru.net. kitguru.net. Retrieved 2017-01-29.
  19. ^ Bayer, Thilo (4 July 2016). "Polaris 10: "There's nothing hidden on that product to unlock" - interview". PC Games Hardware. Retrieved 13 July 2016.
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  21. ^ Anwar, Gohar (30 April 2016). "AMD Polaris 10 and Polaris 11 OpenGL Benchmarks Leaked, Polaris 11 having Two SKUs". TechFrag. Hizzmedia. Retrieved 1 May 2016.
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  27. ^ W1zzard (June 29, 2016). "AMD Radeon RX 480 8 GB". TechPowerUp. Retrieved June 29, 2016.
  28. ^ a b Shrout, Ryan (June 30, 2016). "Power Consumption Concerns on the Radeon RX 480". PC Perspective. Retrieved June 30, 2016.
  29. ^ a b Shrout, Ryan (July 7, 2016). "AMD Radeon RX 480 Power Consumption Concerns Fixed with 16.7.1 Driver". PC Perspective. Retrieved July 7, 2016.
  30. ^ Smith, Ryan (7 July 2016). "AMD Posts Radeon 16.7.1 Drivers, Fixes RX 480 Power Consumption Issues". Anandtech.com. Retrieved 8 July 2016.
  31. ^ Williams, Daniel (26 July 2016). "MSI Show New Radeon RX 480 Gaming Cards". AnandTech. Retrieved 28 July 2016.
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  34. ^ a b "Radeon™ R5 Series Graphics Cards | OEM | AMD". www.amd.com. Retrieved 2017-04-18.
  35. ^ "AMD Radeon R5 430 OEM".
  36. ^ "AMD Radeon R5 435 OEM".
  37. ^ a b c d "Radeon™ R7 Series Graphics Cards | OEM | AMD". www.amd.com. Retrieved 2017-04-18.
  38. ^ "AMD Radeon R7 430 OEM".
  39. ^ "AMD Radeon R7 435 OEM".
  40. ^ "AMD Radeon R7 450 OEM".
  41. ^ "AMD Radeon RX 455 OEM".
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  43. ^ Smith, Ryan (15 June 2016). "A bit more on AMDs Polaris GPUs: 36 16 CUs". AnandTech. Purch Group. Retrieved 15 June 2016.
  44. ^ a b Smith, Ryan (28 July 2016). "AMD Announces RX 470 & RX 460 Specifications; Shipping in Early August". Anandtech. Retrieved 29 July 2016.
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  46. ^ "AMD Radeon RX 470D".
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  50. ^ "Radeon RX 480 Graphics Card". AMD. 29 June 2016. Retrieved 29 June 2016.
  51. ^ https://www.techpowerup.com/gpudb/2859/radeon-r5-m420
  52. ^ https://www.techpowerup.com/gpudb/2846/radeon-r5-m430
  53. ^ https://www.techpowerup.com/gpudb/2850/radeon-r5-m435
  54. ^ https://www.techpowerup.com/gpudb/2851/radeon-r7-m440
  55. ^ https://www.techpowerup.com/gpudb/2852/radeon-r7-m445
  56. ^ http://news.lenovo.com/news-releases/lenovo-launches-new-travel-ready-windows-10-tablet-and-yoga-laptops.htm
  57. ^ https://www.techpowerup.com/gpudb/2853/radeon-r7-m460
  58. ^ https://www.amd.com/en/products/graphics/radeon-rx-460
  59. ^ https://www.techpowerup.com/gpudb/2854/radeon-r7-m465
  60. ^ https://www.amd.com/en-us/products/graphics/notebook/r7-m200
  61. ^ https://www.techpowerup.com/gpudb/2855/radeon-r7-m465x
  62. ^ https://www.techpowerup.com/gpudb/2856/radeon-r9-m470
  63. ^ https://www.techpowerup.com/gpudb/2857/radeon-r9-m470x
  64. ^ https://www.amd.com/en/products/graphics/radeon-rx-470
  65. ^ https://www.techpowerup.com/gpudb/2858/radeon-r9-m485x
  66. ^ a b Killian, Zak (22 March 2017). "AMD publishes patches for Vega support on Linux". Tech Report. Retrieved 23 March 2017.
  67. ^ "Radeon's next-generation Vega architecture" (PDF). radeon.com. Radeon Technologies Group (AMD). 13 June 2017.
  68. ^ Larabel, Michael (7 December 2016). "The Best Features Of The Linux 4.9 Kernel". Phoronix. Retrieved 7 December 2016.