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 feature level 11_1 or 12_0 (GCN only)
OpenCL	OpenCL 1.2 (2.0 for Radeon with GCN 1.0)
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.

• A GPU implementing Graphics Core Next is found on the Radeon HD 7730 and above branded discrete GPUs.
• A GPU implementing TeraScale (microarchitecture) version "Evergreen (VLIW5)" is found on Radeon HD 7670 and below branded discrete GPUs.
• A GPU implementing TeraScale (microarchitecture) version "Northern Island (VLIW4)" is found on APUs whose GPUs are branded with the Radeon HD 7000 series.

Multi-monitor support

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 512 usable stream cores. Both cards are equipped with 512mbnbsp;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 128mb 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

• All models up to including HD 76xx based on TeraScale 2 (VLIW5), HD 77xx - 79xx are based on GCN 1.0 (Graphics Core Next) architecture except the HD 7790 which is based on GCN 1.1.
• GPUs based on the GCN (Graphics Core Next) architecture, all support Direct X 11.2 and 12.0 with the latest drivers (Initially came with DirectX 11.1 support) and also support the Mantle and Vulkan API.
• HD 7790 model is designed more like the 7800/7900 models rather than the 7700 featuring 2x primitive rate instead of 1x which is found in the other 7700 cards.^[11]
• Bonaire is in the Caribbean Sea, Malta is in the Mediterranean Sea. These parts are reverse rebranded out of the Sea Island Series to appear in the 7000 Series in 2013.
• Bonaire XT is the only card in the 7000 series to support True Audio.
• The HD 7990 "Malta" was discontinued few months after its release.
• According to AMD CodeXL, HD 7990's code name is New Zealand.
• HD 7790 Caution: In Windows XP (Clean DirectX 9) the Performance (GFlop) is lower than a HD4770 (960 GFlops)

Model	Launch	Code name	Architecture	Fab (nm)	Transistors (Million)	Die Size (mm^2)	Bus interface	Clock rate			Config core^1	Fillrate		Memory^2				Processing Power GFLOPS		TDP^3 (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)	Cedar	TeraScale 2	40	292	59	PCIe 2.1 ×16	400 650		400 800 900	80:8:4	1.6 2.6	3.2 5.2	256 512	6.4 12.8	DDR2 DDR3	64	104	No	6.4	19.1	11.0	4.1	1.2	OEM
Radeon HD 7450	Jan 2012 (OEM)	Caicos	Terascale 2	40	370	67	PCIe 2.1 ×16	625 750		533 800	160:8:4	2.5 3.0	5.0 6.0	512 1024	8.5 12.8	GDDR3	64	200 240	No	9	18	11.0	4.1	1.2	OEM
Radeon HD 7470	Jan 2012 (OEM)	Caicos	Terascale 2	40	370	67	PCIe 2.1 ×16	625 750		800 900	160:8:4	2.5 3.0	5.0 6.0	512 1024	25.6 28.8	GDDR3 GDDR5	64	200 240	No	9	27	11.0	4.1	1.2	OEM
Radeon HD 7510	Feb 2013 (OEM)	Turks LE	Terascale 2	40	716	118	PCIe 2.1 ×16	650		667	320:16:4	2.6	10.4	1024	21.3	GDDR3	128	416	No			11.0	4.1	1.2	OEM
Radeon HD 7570	Jan 2012 (OEM)	Turks PRO-L	Terascale 2	40	716	118	PCIe 2.1 ×16	650		900 1000	480:24:8	5.2	15.6	512 1024	28.8 64	GDDR3 GDDR5	128	624	No	10 11	44 60	11.0	4.1	1.2	OEM
Radeon HD 7670	Jan 2012 (OEM)	Turks XT	Terascale 2	40	716	118	PCIe 2.1 ×16	800		1000	480:24:8	6.4	19.2	512 1024	64	GDDR5	128	768	No	12	66	11.0	4.1	1.2	OEM
Radeon HD 7730	April, 2013	Cape Verde LE	GCN 1.0	28	1500	123	PCIe 3.0 ×16	800		1125	384:24:8	6.4	19.2	1024	25.6 72	GDDR3 GDDR5	128	614.4	38.4	10	47	12.0 (11_1)	4.5	1.2[12]	$60
Radeon HD 7750	Feb 15, 2012	Cape Verde PRO	GCN 1.0	28	1500	123	PCIe 3.0 ×16	800 900		800 1125	512:32:16	12.8 14.4	25.6 28.8	1024 2048 4096	25.6 72	GDDR3 GDDR5	128	819.2 921.6	51.2 57.6	10	55 75	12.0 (11_1)	4.5	1.2	$110
Radeon HD 7770 GHz Edition	Feb 15, 2012	Cape Verde XT	GCN 1.0	28	1500	123	PCIe 3.0 ×16	1000		1125	640:40:16	16	40	1024 2048	72	GDDR5	128	1280	80	10	80	12.0 (11_1)	4.5	1.2	$160
Radeon HD 7790	Mar 22, 2013	Bonaire XT	GCN 1.1	28	2080	160	PCIe 3.0 ×16	1000		1500	896:56:16	16.0	56.0	1024 2048	96	GDDR5	128	1792	128	10	85	12.0 (12_0)	4.5	2.0	$150
Radeon HD 7850	Mar 19, 2012	Pitcairn PRO	GCN 1.0	28	2800	212	PCIe 3.0 ×16	800		1200	1024:64:32	27.52	55.04	1024 2048	153.6	GDDR5	256	1761.28	110.08	10	130	12.0 (11_1)	4.5	1.2	$250
Radeon HD 7870 GHz Edition	Mar 19, 2012	Pitcairn XT	GCN 1.0	28	2800	212	PCIe 3.0 ×16	1000		1200	1280:80:32	32	80	2048	153.6	GDDR5	256	2560	160	10	175	12.0 (11_1)	4.5	1.2	$350
Radeon HD 7870 XT	Nov 19, 2012	Tahiti LE	GCN 1.0	28	4313	352	PCIe 3.0 ×16	925	975	1500	1536:96:32	29.6	88.8	2048	192.0	GDDR5	256	2841.6 2995.2	710.4 748.8	15	185	12.0 (11_1)	4.5	1.2	$270
Radeon HD 7950	Jan 31, 2012	Tahiti PRO Tahiti PRO-H	GCN 1.0	28	4313	352	PCIe 3.0 ×16	800		1250	1792:112:32	25.6	89.6	3072	240	GDDR5	384	2867.2	717	15	200	12.0 (11_1)	4.5	1.2	$450
Radeon HD 7950 Boost	Aug 14, 2012	Tahiti PRO2 Tahiti PRO-H2	GCN 1.0	28	4313	352	PCIe 3.0 ×16	850	925	1250	1792:112:32	29.6	103.6	3072	240	GDDR5	384	3046.4 3315.2	761.6 828.8	15	225+	12.0 (11_1)	4.5	1.2	$330
Radeon HD 7970	Jan 9, 2012	Tahiti XT	GCN 1.0	28	4313	352	PCIe 3.0 ×16	925		1375	2048:128:32	29.6	118.4	3072 6144	264	GDDR5	384	3788.8	947.2	15	250	12.0 (11_1)	4.5	1.2	$550
Radeon HD 7970 GHz Edition	Jun 22, 2012	Tahiti XT2	GCN 1.0	28	4313	352	PCIe 3.0 ×16	1000	1050	1500	2048:128:32	32	128.0	3072 6144	288	GDDR5	384	4096 4300	1024 1075	15	250+	12.0 (11_1)	4.5	1.2	$500
Radeon HD 7990	Apr 24, 2013	New Zealand	GCN 1.0	28	4313 ×2	352 ×2	PCIe 3.0 ×16	950	1000	1500	2048:128:32 ×2	32 ×2	128 ×2	3072 ×2	288 ×2	GDDR5	384 ×2	8200	1894	15	375	12.0 (11_1)	4.5	1.2	$1000
Model	Launch	Code name	Architecture	Fab (nm)	Transistors (Million)	Die Size (mm^2)	Bus interface	Core (MHz)	Boost (MHz)	Memory (MHz)	Config core^1	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		Memory^2				Processing Power GFLOPS		TDP^3 (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)

• All models include DirectX 11, OpenGL 4.4 and OpenCL 1.2
• All models feature the UNB/MC Bus interface
• All models do not feature double-precision FP
• All models feature angle independent anisotropic filtering, UVD3.2, and Eyefinity capabilities, with up to four outputs.
• All models are based on the TeraScale 3 (VLIW4) used in the Radeon HD 69xx Series (Cayman) GPUs.

Model	Released	Code name	Fab (nm)	Core Clock (MHz)	Config core	Fillrate		Shared Memory			GFLOPS	Combined TDP^1 (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)

• CPU: Piledriver-cores
• GPU: TeraScale 3 (VLIW4), without support for Mantle
• All models feature the UNB/MC Bus I/O interface
• All models should support double-precision FP at 1/16 rate.^[13]
• All models include DirectX 11.0, OpenGL 4.2 and OpenCL 1.2
• All models feature Angle independent anisotropic filtering, Video Coding Engine, UVD 3.2, and AMD Eyefinity multi-monitor with up to 4 displays through DisplayPort

Model	Released	Code name	Fab (nm)	Core Clock (MHz)	Config core^1	Fillrate		Shared Memory			GFLOPS	Combined TDP^2 (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 core^1	Fillrate		Shared memory			GFLOPS (Single-precision)
				Core (Base)	Core (Boost)		Pixel (GP/s)	Texture (GT/s)	Bandwidth (GB/s)	Bus type^2	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"

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

• AMD FirePro
• AMD FireMV
• AMD FireStream

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. "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

• Official website
• techPowerUp! GPU Database