AMD Radeon 400 series

AMD Radeon 400 Series
Release date 29 June 2016
Codename
  • Polaris
  • Vega
Cards
Entry-level Radeon RX 460
Mid-range Radeon RX 470
Radeon RX 480
Rendering support
Direct3D
OpenCL OpenCL 2.1
OpenGL OpenGL 4.5
Vulkan
History
Predecessor AMD Radeon Rx 300 Series

The Radeon 400 series is a series of graphics cards made by AMD. These cards will be the first to feature the Polaris GPUs, using the new 14 nm[1] FinFET manufacturing process. The Polaris family will initially include 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

AMD has revealed its naming system for this series. The RX prefix will be 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 60fps 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 former 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, 100GB/s of memory throughput, has a 128-bit memory bus and will be able to achieve 60fps in the previously mentioned games at 1080p.[2]

New features

This series is based on the fourth generation GCN architecture. It includes new hardware schedulers,[3] a new primitive discard accelerator,[4] a new display controller,[5] and an updated UVD that can decode HEVC at 4K resolutions at 60 frames per second with 10 bits per color channel.[5] Tom's Hardware also states that this architecture can decode VP9, but the functionality is not yet exposed in the driver.[5]

Chips

Polaris

Polaris 10 features 2304 stream processors across 36 Compute Units (CUs),[6] 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 is initially planned to be a mid-range chip, to be featured in the upcoming RX 480, with a TDP of around 110-135W[7] 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."[7]

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.[8][9] Polaris 11 has a TDP of 75W.[7][9]

Vega

Vega (previously known as Greenland)[10] is set to be AMD's upcoming flagship graphics cards, and are to be the successors to the Rx 300 series' enthusiast Fury products. Initially set to launch in 2017, as announced at AMD's Capsaicin event in March 2016, consumers could instead be seeing a possible release date of Q4 2016.[11] Vega is likely to have 4096 GCN 4th generation stream processors and 15-18 billion transistors.[12][13] AMD's projected road maps have confirmed that Vega will have up to 32 GB of HBM2 and an anticipated improvement in terms of performance per watt over Polaris.[14]

Reviews

Many reviewers praised the performance of the RX 480 8GB when evaluated in light of its $239 price. The Tech Report stated that the RX 480 is the fastest card for the $200 segment at the time of its launch.[15] HardOCP gave this card an Editor's Choice Silver award.[16] PC Perspective gave it the PC Perspective Gold Award.[17]

RX 480 reference card PCI Express power limit violations

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.[18] The peak usage can be up to 162 watts and 300 watts altogether with the power supply in a gaming load.[18] 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.[19] 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.[20] He was not concerned about the voltage droop due to the specification's 8% voltage tolerance, but did note of 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.[20]

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.[21] 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.[21] The amount of power drawn from the 6-pin power 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.[22] Some RX 480 cards designed by AMD's partners include an 8-pin power connector which can provide more power than the stock design.[23][24]

Chipset table

Desktop

Model Launch Codename Architecture Fab (nm) Transistors (Billion) Die Size (mm2) Bus interface Clock rate Core config[lower-alpha 1] Fillrate Memory Processing Power
(GFLOPS)		 TBP (W) API support (version) Release Price (USD)
Core (MHz) Boost (MHz) Memory (MT/s) Pixel (GP/s)
(Boost)[lower-alpha 2]		 Texture (GT/s)
(Boost)[lower-alpha 3]		 Size (GiB) Bus width (bit) Bus type Bandwidth (GB/s) Single Precision
(Boost)[lower-alpha 4]		 Double Precision Half Precision
(Boost)		 Direct3D (FL) OpenGL OpenCL Vulkan
Radeon R5 430 (OEM)[26][27] 30 June 2016 Oland Pro GCN 1st gen 28 1.04 90 PCIe 3.0 ×8 730 780 1800
4500		 384:24:8 5.84
(6.24)		 17.52
(18.72)		 1
2		 128 DDR3
GDDR5		 28.8
72		 560
(599)		 37.4 560
(599)		 50 12.0 (11_1) 4.5 2.1 1.0 OEM
Radeon R5 435 (OEM)[26][28] Oland 1030 N/A 2000 320:20:8 8.24 20.6 2 64 DDR3 16 659 41.2 659
Radeon R7 430 (OEM)[29][30] Oland Pro 730 780 1800
4500		 384:24:8 5.84
(6.24)		 17.52
(18.72)		 1
2
4		 128 DDR3
GDDR5		 28.8
72		 560
(599)		 37.4 560
(599)
Radeon R7 435 (OEM)[29][31] Oland 920 N/A 2000 320:20:8 7.36 18.4 2 64 DDR3 16 589 36.8 589
Radeon R7 450 (OEM)[29][32] Cape Verde Pro 1.5 123 PCIe 3.0 ×16 1050 N/A 4500 512:32:16 16.8 33.6 128 GDDR5 72 1075 65.2 1075 65 1.2
Radeon R7 455 (OEM)[29][33] Tobago (Bonaire Pro) GCN 2nd gen 2.08 160 N/A 6500 768:48:16 50.4 104 1613 100.8 1613 100 12.0 (12_0) 2.1
Radeon RX 460[34][35][36][9][37] 8 August 2016 Polaris 11 GCN 4th gen 14 3 123 PCIe 3.0 ×8 1090 1200 7000 896:56:16 17.4
(19.2)		 61
(67.2)		 2
4		 112 1953
(2150)		 122 1953
(2150)		 <75 2.0 $109 (2 GB)
$139 (4 GB)
Radeon RX 470D (China Only)[38] 21 October 2016 Polaris 10 5.7 232 PCIe 3.0 ×16 926 1206 1792:112:32 29.6
(38.6)		 103.7
(135.1)		 4 256 224 3319
(4322)		 207 3319
(4322)		 120 CNY ¥1299
Radeon RX 470[34][36][9] 4 August 2016 6600 2048:128:32 118.5
(154.4)		 4
8		 211 3793
(4940)		 237 3793
(4940)		 $179
Radeon RX 480[39][40][41][42] 29 June 2016 1120 1266 7000
8000		 2304:144:32 35.8
(40.5)		 161.3
(182.3)		 4
8		 224
256		 5161
(5834)		 323 5161
(5834)		 150 $199 (4 GB)
$239 (8 GB)
  1. ↑ Unified Shaders : Texture Mapping Units : Render Output Units
  2. ↑ Pixel fillrate is calculated as the number of ROPs multiplied by the base (or boost) core clock speed.
  3. ↑ Texture fillrate is calculated as the number of TMUs multiplied by the base (or boost) core clock speed.
  4. ↑ Single precision performance is calculated from the base (or boost) core clock speed based on a FMA operation.

Mobile

Model Launch Model Number Codename Fab (nm) Bus interface Clock rate Core config[lower-alpha 1] Fillrate Memory Processing Power
(GFLOPS)		 TDP (W)
(GPU only)		 API compliance (version)
Core (MHz) Boost (MHz) Memory (MHz) Pixel (GP/s) Texture (GT/s) Size (GiB) Bus width (bit) Bus type Bandwidth (GB/s) Direct3D OpenGL[lower-alpha 2] OpenCL Vulkan[lower-alpha 2]
Radeon R5 M420[44] May 15, 2016 Oland Jet Pro 28 PCI-E 3.0 ×16 780 855 1000 320:20:8:5 6.84 17.1 2 64 DDR3 16.0 547 ~20 12 4.5 1.2 (2.0?) 1.0
Radeon R5 M430 [45] May 15, 2016 Oland Exo Pro 28 PCI-E 3.0 ×16 1030 1030 1000 320:20:8:5 8.2 20.6 2 64 DDR3 14.4 659.2 18 12 4.5 1.2 1.0
Radeon R7 M435 [46] May 15, 2016 Oland Jet Pro 28 PCI-E 3.0 ×16 780 855 1000 320:20:8:5 9 22.5 4 64 GDDR5 32 547 ~20 12 4.5 1.2 1.0
Radeon R7 M440 [47] May 15, 2016 Roland Meso Pro 28 PCI-E 3.0 ×16 1021 1021 1000 320:20:8:5 8.17 20.4 4 64 DDR3 16 653 ~20 12 4.5 1.2 1.0
Radeon R5 M445 [48] May 14, 2016 Topaz Meso Pro 28 PCI-E 3.0 ×16 780 920 1000 320:20:8:5 7.36 18.4 4 64 GDDR5 32 589 ~20 12 4.5 1.2 1.0
Radeon R7 M460[49], [50] April 2016 Topaz Meso XT 28 PCI-E 3.0 ×16 1100 1125 900 384:24:8:6 9.00 27.0 2 64 DDR3 14.4 864 Unknown 12 4.5 1.2 1.0
Radeon R7 M465 May 2016 Topaz Litho XT 28 PCI-E 3.0 ×16 Unknown Unknown 1150 384:24:8 Unknown Unknown 4 64/128 GDDR5 Unknown Unknown Unknown 12 4.5 1.2 1.0
Radeon R7 M465X May 2016 Cape Verde Tropo XT 28 PCI-E 3.0 ×16 Unknown Unknown 1125 512:32:16 Unknown Unknown 4 128 GDDR5 Unknown Unknown Unknown 12 4.5 1.2 1.0
Radeon R9 M470 May 2016 Bonaire Strato Pro 28 PCI-E 3.0 ×16 Unknown 1100 1500 768:xx:16 17.6 Unknown 4 128 GDDR5 96 Unknown ~75 12 4.5 2.1 1.0
Radeon R9 M470X May 2016 Bonaire Strato XT 28 PCI-E 3.0 ×16 Unknown 1100 1500 896:56:16 17.6 61.6 4 128 GDDR5 96 1971.2 ~75 12 4.5 2.0 1.0
Radeon RX 480M Unknown Polaris 11 Baffin 14 PCI-E 3.0 ×16 Unknown Unknown Unknown 1024:xx:xx Unknown Unknown Unknown 128 GDDR5 Unknown Unknown 35 12 4.5 2.1 1.0
Radeon R9 M485X May 2016 Tonga Antigua XT 28 PCI-E 3.0 ×16 Unknown Unknown 1250 2048:xx:xx Unknown Unknown 8 256 GDDR5 Unknown Unknown ~100 12 4.5 2.0 1.0
Radeon RX ? Unknown Polaris 10 Ellesmere 14 PCI-E 3.0 ×16 Unknown Unknown Unknown Unknown Unknown Unknown Unknown 256 GDDR5 Unknown Unknown Unknown 12 4.5 2.1 1.0
  1. ↑ Unified Shaders : Texture Mapping Units : Render Output Units : Compute Units
  2. 1 2 Vulkan 1.0 and OpenGL 4.5 possible with Driver Update Crimson 16.3 or higher.[43]

See also

References

  1. ↑ Moammer, Khalid (7 November 2015). "AMD Confirms 14nm CPUs, GPUs and APUs For 2016 – Working Samples Delivered by Globalfoundries". WCCFtech.com. Retrieved 8 November 2015.
  2. ↑ WhyCry (June 30, 2016). "AMD Radeon RX 400 series naming scheme explained". Videocardz.com. Retrieved June 30, 2016.
  3. ↑ Shrout, Ryan (June 29, 2016). "The AMD Radeon RX 480 Review - The Polaris Promise". PC Perspective. p. 2. Retrieved August 12, 2016.
  4. ↑ Angelini, Chris (June 29, 2016). "AMD Radeon RX 480 8GB Review". Tom's Hardware. p. 1. Retrieved August 11, 2016.
  5. 1 2 3 Angelini, Chris (June 29, 2016). "AMD Radeon RX 480 8GB Review". Tom's Hardware. p. 2. Retrieved August 11, 2016.
  6. ↑ Bayer, Thilo (4 July 2016). "Polaris 10: "There's nothing hidden on that product to unlock" - interview". PC Games Hardware. Retrieved 13 July 2016.
  7. 1 2 3 Anwar, Gohar (15 April 2016). "AMD Polaris 10 & Polaris 11 TDP Info Leaked, "Baffin" is Incredibly Power Efficient with Just 50W TDP". TechFrag. Hizzmedia. Retrieved 1 May 2016.
  8. ↑ 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.
  9. 1 2 3 4 Angelini, Chris (8 August 2016). "AMD Radeon RX 460 Review". Tom's Hardware. Retrieved 8 August 2016.
  10. ↑ Moammer, Khalid. "Vega 10 GPU, known previously as Greenland". WCCFtech.
  11. ↑ Killian, Zak (11 May 2016). "Rumor: AMD may pull Vega GPU forward for an October launch". The Tech Report. Retrieved 6 June 2016.
  12. ↑ Mujtaba, Hassan (26 March 2016). "AMD's Vega 10 GPU Expected to Feature 4096 GCN 4.0 Stream Processors – Flagship Chip of Graphic IP v9.0 Generation". WCCFtech.com. Retrieved 6 June 2016.
  13. ↑ Mujtaba, Hassan (21 August 2015). "AMD's Greenland GPU may Feature up to 32 GB of HBM2 Memory – Around 15-18 Billion Transistors, Two New GPUs Leaked". WCCFtech.com. Retrieved 6 June 2016.
  14. ↑ Moammer, Khalid (15 March 2016). "AMD Vega 10 Flagship RX 400 Series GPU Specs Leaked – Greenland Reincarnated, Launching in 2017". WCCFtech.com. Retrieved 6 June 2016.
  15. ↑ Kampman, Jeff; Wild, Robert (June 29, 2016). "AMD's Radeon RX 480 graphics card reviewed". The Tech Report. Retrieved June 29, 2016.
  16. ↑ Justice, Brent (June 29, 2016). Bennett, Kyle, ed. "AMD Radeon RX 480 Video Card Review". HardOCP. Retrieved June 29, 2016.
  17. ↑ Shrout, Ryan (June 29, 2016). "The AMD Radeon RX 480 Review - The Polaris Promise". PC Perspective. Retrieved June 29, 2016.
  18. 1 2 Angelini, Chris (June 29, 2016). "AMD Radeon RX 480 8GB Review". Tom's Hardware. Retrieved June 29, 2016.
  19. ↑ W1zzard (June 29, 2016). "AMD Radeon RX 480 8 GB". TechPowerUp. Retrieved June 29, 2016.
  20. 1 2 Shrout, Ryan (June 30, 2016). "Power Consumption Concerns on the Radeon RX 480". PC Perspective. Retrieved June 30, 2016.
  21. 1 2 Shrout, Ryan (July 7, 2016). "AMD Radeon RX 480 Power Consumption Concerns Fixed with 16.7.1 Driver". PC Perspective. Retrieved July 7, 2016.
  22. ↑ Smith, Ryan (7 July 2016). "AMD Posts Radeon 16.7.1 Drivers, Fixes RX 480 Power Consumption Issues". Anandtech.com. Retrieved 8 July 2016.
  23. ↑ Williams, Daniel (26 July 2016). "MSI Show New Radeon RX 480 Gaming Cards". AnandTech. Retrieved 28 July 2016.
  24. ↑ Chacos, Brad (22 July 2016). "Sapphire Nitro+ RX 480 review: Polaris rethought and refined". PC World. Retrieved 28 July 2016.
  25. ↑ "Radeon™ RX 480 Graphics Card". AMD. Retrieved 19 August 2016.
  26. 1 2 http://www.amd.com/en-us/products/graphics/desktop/oem/r5#4
  27. ↑ https://www.techpowerup.com/gpudb/2893/radeon-r5-430-oem
  28. ↑ https://www.techpowerup.com/gpudb/2894/radeon-r5-435-oem
  29. 1 2 3 4 http://www.amd.com/en-us/products/graphics/desktop/oem/r7#4
  30. ↑ https://www.techpowerup.com/gpudb/2892/radeon-r7-430-oem
  31. ↑ https://www.techpowerup.com/gpudb/2891/radeon-r7-435-oem
  32. ↑ https://www.techpowerup.com/gpudb/2890/radeon-r7-450-oem
  33. ↑ https://www.techpowerup.com/gpudb/2889/radeon-r7-455-oem
  34. 1 2 Sexton, Michael (13 June 2016). "AMD Rounds Out Polaris Offerings With RX 470, RX 460 GPUs". Tom's Hardware. Purch Group. Retrieved 13 June 2016.
  35. ↑ Smith, Ryan (15 June 2016). "A bit more on AMDs Polaris GPUs: 36 16 CUs". AnandTech. Purch Group. Retrieved 15 June 2016.
  36. 1 2 Smith, Ryan (28 July 2016). "AMD Announces RX 470 & RX 460 Specifications; Shipping in Early August". Anandtech. Retrieved 29 July 2016.
  37. ↑ Justice, Brent (8 August 2016). "AMD Radeon RX 460 Official Specification Information". Hard OCP. Retrieved 8 August 2016.
  38. ↑ https://www.techpowerup.com/gpudb/2896/radeon-rx-470d
  39. ↑ "Radeon RX 480 Set to Drive Premium VR Experiences into the Hands of Millions of Consumers; Starting at Just $199" (Press release). Taipei, Taiwan. AMD Communications. 1 June 2016. Retrieved 1 June 2016.
  40. ↑ Smith, Ryan (1 June 2016). "AMD Teases Radeon RX 480: Launching June 29th for 199". Anandtech.com. Retrieved 1 June 2016.
  41. ↑ Smith, Ryan (29 June 2016). "The AMD Radeon RX 480 Preview". Anandtech. Retrieved 29 June 2016.
  42. ↑ "Radeon RX 480 Graphics Card". AMD. 29 June 2016. Retrieved 29 June 2016.
  43. ↑ JeGX (10 March 2016). "AMD Crimson 16.3 Graphics Driver Available with Vulkan Support". Geeks3D. Archived from the original on 17 April 2016. Retrieved 11 May 2016.
  44. ↑ https://www.techpowerup.com/gpudb/2859/radeon-r5-m420
  45. ↑ https://www.techpowerup.com/gpudb/2846/radeon-r5-m430
  46. ↑ https://www.techpowerup.com/gpudb/2850/radeon-r5-m435
  47. ↑ https://www.techpowerup.com/gpudb/2851/radeon-r7-m440
  48. ↑ https://www.techpowerup.com/gpudb/2852/radeon-r7-m445
  49. ↑ http://news.lenovo.com/news-releases/lenovo-launches-new-travel-ready-windows-10-tablet-and-yoga-laptops.htm
  50. ↑ https://www.techpowerup.com/gpudb/2853/radeon-r7-m460
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