Radeon HD 7000 Series

AMD Radeon HD 7000 Series
Release date Announced: December 22, 2011
Released: January 9, 2012
Codename Southern Islands
London
Trinity
Sea Islands
Fabrication process and transistors
  • 292M 40 nm (Cedar)
  • 370M 40 nm (Caicos)
  • 716M 40 nm (Turks)
  • 1,500M 28 nm (Cape Verde)
  • 2,080M 28 nm (Bonaire)
  • 2,800M 28 nm (Pitcairn)
  • 4,313M 28 nm (Tahiti)
Cards
Entry-level 73xx - 76xx
Mid-range 7750, 7770, 7790
High-end 7850, 7870, 7950, 7970
Enthusiast 7990
Rendering support
Direct3D Direct3D 11.x, Direct3D 12.0
Shader Model 5.0 (GCN only)
OpenCL OpenCL 1.2 (2.1 for Radeon HD 7790)
OpenGL OpenGL 4.5[1]
History
Predecessor Radeon HD 6000 Series
Variant Radeon HD 8000 Series
Successor Radeon Rx 200 Series

The Radeon HD 7000 Series, based on "Southern Islands", is further products series in the family of Radeon GPUs developed by AMD.[2] AMD builds Southern Islands series graphics chips based on the 28 nm manufacturing process at TSMC.[3] The primary competitor of Southern Islands, Nvidia's GeForce 600 Series (also manufactured at TSMC), also shipped during Q1 2012, largely due to the immaturity of the 28 nm process.[4]

Architecture

This article is about all products under the Radeon HD 7000 Series brand. Graphics Core Next was introduced with the Radeon HD 7000 Series.

Multi-monitor support

Main article: AMD Eyefinity

The AMD Eyefinity-branded on-die display controllers were introduced in September 2009 in the Radeon HD 5000 Series and have been present in all products since.[5]

Video acceleration

Both Unified Video Decoder (UVD) and Video Coding Engine (VCE) are present on the dies of all products and supported by AMD Catalyst and by the free and open-source graphics device driver#ATI/AMD.

Desktop products

The 28 nm product line is divided in three dies (Tahiti, Pitcairn, and Cape Verde), each one roughly double in shader units compared to its small brethren (32, 20, and respectively 10 GCN compute units). While this gives roughly a doubling of single-precision floating point, there is however a significant departure in double-precision compute power. Tahiti has a maximum ¼ double precision throughput relative to its single precision throughput, while the other two smaller consumer dies can only achieve a 1/16 ratio.[6] While each bigger die has two additional memory controllers widening its bus by 128 bits, Pitcairn however has the same front-end dual tesselator units as Tahiti giving it similar performance to its larger brethren in DX11 tessellation benchmarks.[6]

Radeon HD 7900

Codenamed Tahiti, the Radeon HD 7900 series was announced on December 22, 2011. Products include the Radeon 7970 GHz Edition, Radeon HD 7970 and Radeon HD 7950. The Radeon HD 7970 features 2048 usable stream cores,[lower-alpha 1] whereas the Radeon HD 7950 has 1792 usable stream cores, as 256 out of the 2048 cores are disabled during product binning which detects defective areas of a chip. The cards are the first products to take advantage of AMD's new "Graphics Core Next" compute architecture. Both cards are equipped with 3 GB GDDR5 memory and manufactured on TSMC's 28 nm process. The Tahiti GPU is also used in the Radeon HD 7870 XT, released November 19, 2012. In this case one quarter of the stream processors are disabled, giving 1536 usable cores. Additionally, the memory interface is downgraded from 384-bit to 256-bit, along with a memory size reduction from 3 GB to 2 GB.

Radeon HD 7800

Codenamed Pitcairn, the Radeon HD 7800 series was formally unveiled on March 5, 2012, with retail availability from March 19, 2012. Products include the Radeon HD 7870 and Radeon HD 7850. The Radeon HD 7870 features 1280 usable stream cores, whereas the Radeon HD 7850 has 1024 usable stream cores. Both cards are equipped with 2 GB GDDR5 memory and manufactured on TSMC's 28 nm process.[8]


Radeon HD 7700

Codenamed Cape Verde, the Radeon HD 7700 series was released on February 15, 2012. Products include the Radeon HD 7770 GHz Edition and Radeon HD 7750. The Radeon HD 7770 GHz Edition features 640 stream cores based on the GCN architecture, whereas the Radeon HD 7750 has only 512 usable stream cores. Both cards are equipped with 1 GB GDDR5 memory and manufactured in 28 nm. On March 22, 2013 another card, Radeon HD 7790, was introduced in this series. This card is based on the Bonaire architecture, which features 896 stream cores using GCN 1.1 technology, an incremental update. On May 2013, AMD launched the Radeon HD 7730, based on the Cape Verde LE graphics processor. It features a 128-bit memory bus, 384 stream cores, 8 ROPs, and a core clock speed of up to 800MHz. The HD 7730 came with GDDR5 and DDR3 variants, running on memory clock speeds of 1125MHz and 900MHz, respectively. Idle power usage was lowered by 14.5% (47W) compared to the Radeon HD 7750 (55W).[9][10]

Chipset table

A Radeon HD 7750 card, using a fanless design.

Southern Islands (HD 7xxx) Series

Model Launch Code name Fab (nm) Transistors (Million) Die Size (mm2) Bus interface Clock rate Config core1 Fillrate Memory2 Processing Power
GFLOPS
TDP3 (W) API support (version) Release Price (USD)
Core (MHz) Boost (MHz) Memory (MHz) Pixel (GP/s) Texture (GT/s) Size (MB) Bandwidth (GB/s) Bus type Bus width (bit) Single Precision Double Precision Idle Max. DirectX OpenGL OpenCL
Radeon HD 7350 Jan 2012 (OEM)Cedar4029259PCIe 2.1 ×16400
650
400
800
900
80:8:41.6
2.6
3.2
5.2
256
512
6.4
12.8
DDR2
DDR3
64104No6.419.111.04.11.2OEM
Radeon HD 7450 Jan 2012 (OEM)Caicos4037067PCIe 2.1 ×16625
750
533
800
160:8:42.5
3.0
5.0
6.0
512
1024
8.5
12.8
GDDR364200
240
No91811.04.11.2OEM
Radeon HD 7470 Jan 2012 (OEM)Caicos4037067PCIe 2.1 ×16625
750
800
900
160:8:42.5
3.0
5.0
6.0
512
1024
25.6
28.8
GDDR3
GDDR5
64200
240
No92711.04.11.2OEM
Radeon HD 7510 Feb 2013 (OEM)Turks LE40716118PCIe 2.1 ×16650667320:16:42.610.4102421.3GDDR3128416No11.04.11.2OEM
Radeon HD 7570 Jan 2012 (OEM)Turks PRO-L40716118PCIe 2.1 ×16650900
1000
480:24:85.215.6512
1024
28.8
64
GDDR3
GDDR5
128624No10
11
44
60
11.04.11.2OEM
Radeon HD 7670 Jan 2012 (OEM)Turks XT40716118PCIe 2.1 ×168001000480:24:86.419.2512
1024
64GDDR5128768No126611.04.11.2OEM
Radeon HD 7730 April, 2013Cape Verde LE281500123PCIe 3.0 ×168001125384:24:86.419.2102425.6
72
GDDR3
GDDR5
128614.438.4104712.04.51.2[12]$60
Radeon HD 7750 Feb 15, 2012Cape Verde PRO281500123PCIe 3.0 ×16800
900
800
1125
512:32:1612.8
14.4
25.6
28.8
1024
2048
4096
25.6
72
GDDR3
GDDR5
128819.2
921.6
51.2
57.6
1055
75
12.04.51.2$110
Radeon HD 7770
GHz Edition
Feb 15, 2012Cape Verde XT281500123PCIe 3.0 ×1610001125640:40:1616401024
2048
72GDDR5128128080108012.04.51.2$160
Radeon HD 7790 Mar 22, 2013Bonaire XT282080160PCIe 3.0 ×1610001500896:56:1616.056.01024
2048
96GDDR51281792128108512.04.51.2$150
Radeon HD 7850 Mar 19, 2012Pitcairn PRO282800212PCIe 3.0 ×1680012001024:64:3227.5255.041024
2048
153.6GDDR52561761.28110.081013012.04.51.2$250
Radeon HD 7870
GHz Edition
Mar 19, 2012Pitcairn XT282800212PCIe 3.0 ×16100012001280:80:3232802048153.6GDDR525625601601017512.04.51.2$350
Radeon HD 7870 XT Nov 19, 2012Tahiti LE284313352PCIe 3.0 ×1692597515001536:96:3229.688.82048192.0GDDR52562841.6
2995.2
710.4
748.8
1518512.04.51.2$270
Radeon HD 7950 Jan 31, 2012Tahiti PRO
Tahiti PRO-H
284313352PCIe 3.0 ×1680012501792:112:3225.689.63072240GDDR53842867.27171520012.04.51.2$450
Radeon HD 7950 Boost Aug 14, 2012Tahiti PRO2
Tahiti PRO-H2
284313352PCIe 3.0 ×1685092512501792:112:3229.6103.63072240GDDR53843046.4
3315.2
761.6
828.8
15225+12.04.51.2$330
Radeon HD 7970 Jan 9, 2012Tahiti XT284313352PCIe 3.0 ×1692513752048:128:3229.6118.43072
6144
264GDDR53843788.8947.21525012.04.51.2$550
Radeon HD 7970
GHz Edition
Jun 22, 2012Tahiti XT2284313352PCIe 3.0 ×161000105015002048:128:3232128.03072
6144
288GDDR53844096
4300
1024
1075
15250+12.04.51.2$500
Radeon HD 7990 Apr 24, 2013New Zealand284313 ×2352 ×2PCIe 3.0 ×16950100015002048:128:32 ×232 ×2128 ×23072 ×2288 ×2GDDR5384 ×2820018941537512.04.51.2$1000
Model Launch Code name Fab (nm) Transistors (Million) Die Size (mm2) Bus interface Core (MHz) Boost (MHz) Memory (MHz) Config core1 Pixel (GP/s) Texture (GT/s) Size (MB) Bandwidth (GB/s) Bus type Bus width (bit) Single Precision Double Precision Idle Max. DirectX OpenGL OpenCL Release Price (USD)
Clock rate Fillrate Memory2 Processing Power
GFLOPS
TDP3 (W) API support (version)

1 Unified shaders : Texture mapping units : Render output units
2 The effective data transfer rate of GDDR5 is quadruple its nominal clock, instead of double as with other DDR memory.
3 The TDP is reference design TDP values from AMD. Different non-reference board designs from vendors may lead to slight variations in actual TDP.

    IGP (HD 7xxx)

    Model Released Code name Fab (nm) Core Clock (MHz) Config core Fillrate Shared Memory GFLOPS Combined TDP1 (W) APU
    Pixel (GP/s) Texture (GT/s) Bandwidth (GB/s) Bus type Bus width (bit) Idle Max.
    Radeon HD 7480D June 1, 2012 Scrapper 32 723 128:8:4 2.87 5.76 25.6 DDR3-1600 128 185 Unknown 65 A4-4000 A4-5300
    Radeon HD 7540D June 1, 2012 Devastator 32 760 192:12:4 3.02 9.12 29.9 DDR3-1866 128 292 Unknown 65 A6-5400K
    Radeon HD 7560D June 1, 2012 Devastator 32 760 256:16:8 6.08 12.16 29.9 DDR3-1866 128 389 Unknown 65 - 100 A8-5500 A8-5600K
    Radeon HD 7660D June 1, 2012 Devastator 32 760
    800
    384:24:8 6.08
    6.4
    18.24
    19.2
    29.9 DDR3-1866 128 584
    614
    Unknown 65 - 100 A10-5700 (760 MHz) A10-5800K (800 MHz)

    1TDP specified for AMD reference designs, includes CPU power consumption. Actual TDP of retail products may vary.

    Mobile products

    Integrated (IGP) products

    Trinity APU Series (HD 7xxxD)

    Model Released Code name Fab (nm) Core Clock (MHz) Config core1 Fillrate Shared Memory GFLOPS Combined TDP2 (W) Notes
    Pixel (GP/s) Texture (GT/s) Bandwidth (GB/s) Bus type Bus width (bit) Idle Max.
    Radeon HD 7480D June 1, 2012 Scrapper 32 723 128:8:4 ? ? 25.6 DDR3-1600 128 185 Unknown 65 used in A4-5300 APU
    Radeon HD 7540D June 1, 2012 Scrapper 760 192:12:4 ? ? 29.9 DDR3-1866 128 292 Unknown 65 used in A6-5400K APU
    Radeon HD 7560D June 1, 2012 Devastator 760 256:16:4 ? ? 29.9 DDR3-1866 128 389 Unknown 65-100 used in A8-5500 and A8-5600K APUs
    Radeon HD 7660D June 1, 2012 Devastator 760-800 384:24:8 2.7 16.2 29.9 DDR3-1866 128 584-614 Unknown 65-100 used in A10-5700 (760 MHz) and A10-5800K (800 MHz) APUs
    Model Launch Code name Fab
    (nm)
    Clock rate (MHz) Config core1 Fillrate Shared memory GFLOPS (Single-precision)
    Core (Base) Core (Boost) Pixel (GP/s) Texture (GT/s) Bandwidth (GB/s) Bus type2 Bus width (bit)
    Radeon HD 7400G September 1, 2012 Scrapper 32 327 424 192:12:4 1.31 3.92 21.33 to 34.13 DDR3-1333 to 2133 128 125.57
    Radeon HD 7420G June 1, 2012 Scrapper 480 655 128:8:4 1.92 3.84 122.88
    Radeon HD 7500G May 15, 2012 Scrapper 327 424 256:16:8 2.62 5.23 167.42
    Radeon HD 7520G June 1, 2012 Scrapper 496 685 192:12:4 1.98 5.95 190.46
    Radeon HD 7600G September 1, 2012 Devastator 320 424 384:24:8 2.56 7.68 245.76
    Radeon HD 7620G May 15, 2012 Devastator 360 497 384:24:8 2.88 8.64 276.48
    Radeon HD 7640G May 15, 2012 Devastator 496 685 256:16:8 3.97 7.94 253.95
    Radeon HD 7660G May 15, 2012 Devastator 496 685 384:24:8 3.97 11.9 380.93

    TDP specified for AMD reference designs, includes CPU power consumption. Actual TDP of retail products may vary.

    Graphics device drivers

    AMD's proprietary graphics device driver "Catalyst"

    Main article: AMD Catalyst

    AMD Catalyst is being developed for Microsoft Windows and Linux. As of July 2014, other operating system are not officially supported. This may be different for the AMD FirePro brand, which is based on identical hardware but features OpenGL-certified graphics device drivers.

    AMD Catalyst supports of course all features advertised for the Radeon brand.

    Free and open-source graphics device driver "Radeon"

    The free and open-source drivers are primarily developed on Linux and for Linux, but have been ported to other operating systems as well. Each driver is composed out of five parts:

    1. Linux kernel component DRM
    2. Linux kernel component KMS driver: basically the device driver for the display controller
    3. user-space component libDRM
    4. user-space component in Mesa 3D;
    5. a special and distinct 2D graphics device driver for X.Org Server, which if finally about to be replaced by Glamor

    The free and open-source "Radeon" graphics driver supports most of the features implemented into the Radeon line of GPUs.[14]

    The free and open-source "Radeon" graphics device drivers are not reverse engineered, but based on documentation released by AMD.[15]

    See also

    Notes

    1. Corresponding to 32 cores in "the closest reasonable mapping to the equivalent in a CPU".[7]:60

    References

    1. "AMD Catalyst™ 14.4 Windows® Release Notes". AMD. 2014-04-29. Retrieved 2014-08-11.
    2. Demerjian, Charlie (April 6, 2011). "AMD will out the 'Southern Islands' GPU architecture early". SemiAccurate. Archived from the original on October 1, 2013. Retrieved October 1, 2013.
    3. "Report: TSMC wins key 40-, 28-nm deals". EETimes. Archived from the original on June 28, 2011. Retrieved 2011-06-28.
    4. Charlie Demerjian (July 19, 2011). "Southern Islands, Kepler, and Apple’s A6 process puzzle outed". Retrieved December 1, 2013.
    5. "AMD Eyefinity: FAQ". AMD. 2011-05-17. Retrieved 2014-07-02.
    6. 1 2 "Review: AMD Radeon HD 7850 & 7870" (in French). BeHardware. March 5, 2012. Retrieved August 22, 2013.
    7. Gaster, Benedict; Howes, Lee; Kaeli, David R.; Mistry, Perhaad; Schaa, Dana (2012). Heterogeneous Computing with OpenCL: Revised OpenCL 1.2 Edition. Morgan Kaufmann.
    8. "AMD Radeon HD 7870 GHz Edition & Radeon HD 7850 Review: Rounding Out Southern Islands". AnandTech. Retrieved August 22, 2013.
    9. http://www.tomshardware.com/reviews/radeon-hd-7730-cape-verde-review,3575.html
    10. http://www.amd.com/en-us/products/graphics/desktop/7000/7700#
    11. "AMD launches Radeon 7790: Meet the Xbox 720's GPU". ExtremeTech. 2013-03-22. Retrieved 2013-11-10.
    12. "AMD OpenCL 2.0 Driver". support.amd.com/. AMD. Retrieved 2015-02-18.
    13. "Berechnungen mit doppelter Genauigkeit auf GPU-Teil von Trinity möglich". Planet3dnow.de. August 13, 2013. Retrieved August 22, 2013.
    14. "RadeonFeature". Xorg.freedesktop.org. Retrieved 2014-07-06.
    15. "AMD Developer Guideds".

    External links

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