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
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
Enthusiast	7950, 7970, 7990
API support
DirectX	Direct3D 11.2 Shader Model 5.0
OpenCL	OpenCL 1.2
OpenGL	OpenGL 4.4
History
Predecessor	Radeon HD 6000 Series
Variant	Radeon HD 8000 Series
Successor	Radeon Rx 200 Series

The Radeon HD 7000 Series, based on Graphics Core Next 1.0 "Southern Islands", is further products series in the family of Radeon GPUs developed by AMD. AMD builds Southern Islands series graphics chips based on the 28 nm manufacturing process at TSMC. 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.

Architecture

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

• A GPU implementing Graphics Core Next is found on ... and ... branded products.
• A GPU implementing TeraScale (microarchitecture) version "Evergreen (VLIW5)" is found on ... and ... branded products.
• A GPU implementing TeraScale (microarchitecture) version "Northern Island (VLIW4)" is found on ... and "below" branded products.

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.

Video acceleration

Both Unified Video Decoder (UVD) and Video Codec 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

Main article: Southern Islands (HD 7xxx) Series

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. 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.

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, 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.

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, featuring 896 stream cores based on GCN 1.1 technology, an incremental update of GCN. On May 2013, AMD launched new graphic card HD 7730, based on Cape Verde LE variant which only 384 stream cores enabled. this card either came with 1 GB GDDR5 or 2 GB GDDR3 memory.

Chipset table

Model	Launch	Codename	Fab (nm)	Transistors (Million)	Die Size (mm2)	Bus interface	Memory (MiB)	Clock rate			Config core	Fillrate		Memory			Processing Power GFLOPS		TDP (W)		GFLOPS/W Single Precision	Release Price (USD)
								Core (MHz)	Boost (MHz)	Memory (MHz)		Pixel (GP/s)	Texture (GT/s)	Bandwidth (GB/s)	Bus type	Bus width (bit)	Single Precision	Double Precision	Idle	Max.
Radeon HD 7350	Jan 2012 (OEM)	Cedar	40	292	59	PCIe 2.1 ×16	256 512	400 650	—	400 800 900	80:8:4	1.6 2.6	3.2 5.2	6.4 12.8	DDR2 DDR3	64	104	No	6.4	19.1	5.45	OEM
Radeon HD 7450	Jan 2012 (OEM)	Caicos	40	370	67	PCIe 2.1 ×16	512 1024	625 750	—	533 800	160:8:4	2.5 3.0	5.0 6.0	8.5 12.8	GDDR3	64	200 240	No	9	18	11.11 13.33	OEM
Radeon HD 7470	Jan 2012 (OEM)	Caicos	40	370	67	PCIe 2.1 ×16	512 1024	625 750	—	800 900	160:8:4	2.5 3.0	5.0 6.0	25.6 28.8	GDDR5	64	200 240	No	9	27	7.41 8.89	OEM
Radeon HD 7510	Feb 2013 (OEM)	Turks LE	40	716	118	PCIe 2.1 ×16	1024	650	—	667	320:16:4	2.6	10.4	21.3	GDDR3	128	416	No				OEM
Radeon HD 7570	Jan 2012 (OEM)	Turks PRO-L	40	716	118	PCIe 2.1 ×16	512 1024	650 650	—	900 1000	480:24:8	5.2	15.6	28.8 64	GDDR3 GDDR5	128	624	No	10 11	44 60	14.18 10.4	OEM
Radeon HD 7670	Jan 2012 (OEM)	Turks XT	40	716	118	PCIe 2.1 ×16	512 1024	800 800	—	1000 1000	448:24:8	6.4	19.2	64	GDDR5	128	768	No	12	66	11.64	OEM
Radeon HD 7730	Apr 2013	Cape Verde LE	28	1500	123	PCIe 3.0 ×16	1024	800	—	1125	384:24:16	12.8	19.2	72	GDDR5	128	614.4	38.4	10	47	13.07	$80
Radeon HD 7750	Feb 15, 2012	Cape Verde PRO	28	1500	123	PCIe 3.0 ×16	1024 2048 4096	800 900	—	1125 1125	512:32:16	12.8 14.4	25.6 28.8	72	DDR3 GDDR5	128	819.2 921.6	51.2 57.6	10	55 75	14.89 12.29	$110
Radeon HD 7770 GHz Edition	Feb 15, 2012	Cape Verde XT	28	1500	123	PCIe 3.0 ×16	1024 2048	1000 1100 1150	—	1125 1125 1250 1300	640:40:16	16 17.6 18	40 44 46	72 80 83.6	GDDR5	128	1280 1408 1478	80 88 90	10	80 100	16 17.6	$160
Radeon HD 7790	Mar 22, 2013	Bonaire XT	28	2080	160	PCIe 3.0 ×16	1024 2048	1000	—	1500	896:56:16	16.0	56.0	96	GDDR5	128	1792	128	10	85	21.08	$150
Radeon HD 7850	Mar 19, 2012	Pitcairn PRO	28	2800	212	PCIe 3.0 ×16	1024 2048	860 860	—	1200 1200	1024:64:32	27.52	55.04	153.6	GDDR5	256	1761.28	110.08	10	130	13.548	$250
Radeon HD 7870 GHz Edition	Mar 19, 2012	Pitcairn XT	28	2800	212	PCIe 3.0 ×16	2048	1000	—	1200	1280:80:32	32	80	153.6	GDDR5	256	2560	160	10	175	14.629	$350
Radeon HD 7870 XT	Nov 19, 2012	Tahiti LE	28	4313	352	PCIe 3.0 ×16	2048	925	975	1500	1536:96:32	29.6	88.8	192.0	GDDR5	256	2841.6 2995.2	710.4 748.8	15	185	16.19	$280
Radeon HD 7950	Jan 31, 2012	Tahiti PRO Tahiti PRO-H	28	4313	352	PCIe 3.0 ×16	3072	800	—	1250	1792:112:32	25.6	89.6	240	GDDR5	384	2867.2	717	15	200	14.336	$450
Radeon HD 7950 Boost	Aug 14, 2012	Tahiti PRO2 Tahiti PRO-H2	28	4313	352	PCIe 3.0 ×16	3072	850	925	1250	1792:112:32	29.6	103.6	240	GDDR5	384	3046.4 3315.2	761.6 828.8	15	225+	14.734	$350
Radeon HD 7970	Jan 9, 2012	Tahiti XT	28	4313	352	PCIe 3.0 ×16	3072 6144	925	—	1375	2048:128:32	29.6	118.4	264	GDDR5	384	3788.8	947.2	15	250	15.155	$550
Radeon HD 7970 GHz Edition	Jun 22, 2012	Tahiti XT2	28	4313	352	PCIe 3.0 ×16	3072 6144	1000	1050	1500	2048:128:32	32	128.0	288	GDDR5	384	4096 4300	1024 1075	15	250+	17.2	$500
Radeon HD 7990	Apr 24, 2013	Malta	28	4313x2	352x2	PCIe 3.0 ×16	3072x2	950	1000	1500	2048:128:32x2	32x2	128x2	288x2	GDDR5	384x2	8200	1894	15	375	21.86	$1000
Model	Launch	Codename	Fab (nm)	Transistors (Million)	Die Size (mm2)	Bus interface	Memory (MiB)	Core (MHz)	Boost (MHz)	Memory (MHz)	Config core	Pixel (GP/s)	Texture (GT/s)	Bandwidth (GB/s)	Bus type	Bus width (bit)	Single Precision	Double Precision	Idle	Max.	GFLOPS/W Single Precision	Release Price (USD)
								Clock rate				Fillrate		Memory			Processing Power GFLOPS		TDP (W)

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.

Mobile products

Main article: Radeon HD 7xxxM Series

Integrated (IGP) products

Trinity APU Series (HD 7xxxD)

Main articles: "Trinity", "Richland"desktop, and "Richland" mobile

• 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.
• All models include DirectX 11.0, OpenGL 4.2 and OpenCL 1.2
• All models feature Angle independent anisotropic filtering, Video Codec 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 core1	Fillrate		Shared Memory			GFLOPS	Combined TDP2 (W)		GFLOPS/W	Notes
						Pixel (GP/s)	Texture (GT/s)	Bandwidth (GB/s)	Bus type	Bus width (bit)		Idle	Max.
Radeon HD 7480D	June 1, 2012	Devastator	32	723	128:8:4	?	?	25.6	DDR3-1600	128	185	Un­known	65	Un­known	used in A4-5300 APU
Radeon HD 7540D	June 1, 2012	Devastator		760	192:12:4	?	?	29.9	DDR3-1866	128	292	Un­known	65	Un­known	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	Un­known	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	Un­known	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	-	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	-		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	-		320	424	384:24:8	2.56	7.68				245.76
Radeon HD 7620G	May 15, 2012	-		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"

Main article: free and open-source "radeon" graphics device driver

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.

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

See also

• AMD FirePro
• AMD FireMV
• AMD FireStream

External links

• Official website
• techPowerUp! GPU Database