Radeon HD 4000 series
Desktop Products
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 it is with other DDR memory.

Radeon HD 4000 series

Section Title: Desktop Products
Table Section Text: 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 it is with other DDR memory.

Model4	Launch	Code name	Fab (nm)	Transistors (million)	Die size (mm2)	Bus interface	Clock rate	Core config1	Fillrate	Memory2	Processing power (GFLOPS)	TDP3 (Watts)	Crossfire support	API support (version)	Release Price (USD)

Core (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.	Direct3D	OpenGL	OpenCL

Radeon HD 4350	Sep 30, 2008	RV710	55	242	73	PCIe 2.0 ×16 PCIe 2.0 ×1 AGP 8×	600	400 650	80:8:4	2.40	4.80	256 512 1024	6.40 10.4	DDR2 DDR3	64	92.0	No	20	No	10.1	3.3	1.0	?

Radeon HD 4550	Sep 30, 2008	RV710	55	242	73	PCIe 2.0 ×16	600 600	655 800	80:8:4	2.40	4.80	256 512 1024	10.5 12.8	DDR2 GDDR3	64	96.0	25	10.1	3.3	1.0	?

Radeon HD 4570	Nov 25, 2008	RV710	55	242	73	PCIe 2.0 ×16	650	500	80:8:4	2.60	5.20	1024	8.00	DDR2	64	104.0	25	10.1	3.3	1.0	?

Radeon HD 4580	Nov 20, 2011	RV635 PRO	55	378	135	PCIe 2.0 ×16	796	693	120:8:4	3.18	6.37	512	22.2	GDDR3	128	191.0	65	10.1	3.3	1.0	?

Radeon HD 4650	Sep 10, 2008	RV730 PRO	55	514	146	PCIe 2.0 ×16 AGP 8×	600 650	400 - 500 500 700	320:32:8	4.80 5.20	19.2 20.8	256 512 1024	12.8 - 16.0 16.0 22.4	DDR2 GDDR3 GDDR4	64 128	384.0 416.0	No	48	2-Way Crossfire	10.1	3.3	1.0	?

Radeon HD 4670	Sep 10, 2008	RV730 XT	55	514	146	PCIe 2.0 ×16 AGP 8×	750 750	400 - 500 900 1000	320:32:8	6.00	24.0	512 1024	12.8 - 16.0 28.8 32.0	DDR2 GDDR3 GDDR4	128	480.0	No	59	10.1	3.3	1.0	79

Radeon HD 4730	Jun 8, 2009	RV770 CE	55	956	256	PCIe 2.0 ×16	700 750	900 900	640:32:8	5.60 6.00	22.4 24.0	512	57.6	GDDR5	128	896.0 960.0	179.2 192.0	110	10.1	3.3	1.0	?

Radeon HD 4750	Sep 9, 2009	RV740	40	826	137	PCIe 2.0 ×16	730	800	640:32:16	11.7	23.4	512	51.2	GDDR5	128	934.4	80	10.1	3.3	1.0	?

Radeon HD 4770	Apr 28, 2009	RV740	40	826	137	PCIe 2.0 ×16	750	800	640:32:16	12.0	24.0	512	51.2	GDDR5	128	960.0	192.0	80	10.1	3.3	1.0	109

Radeon HD 4810	May 28, 2009	RV770 CE	55	956	256	PCIe 2.0 ×16	625 750	900 900	640:32:8	5.00 6.00	20.0 24.0	512	57.6	GDDR5	128	800.0 960.0	160.0 192.0	95	10.1	3.3	1.0	?

Radeon HD 4830	Oct 21, 2008	RV770 LE	55	956	256	PCIe 2.0 ×16	575	900	640:32:16	9.20	18.4	512 1024	57.6	GDDR3 GDDR4	256	736.0	147.2	95	10.1	3.3	1.0	130$

Radeon HD 4850	Jun 25, 2008	RV770 PRO	55	956	256	PCIe 2.0 ×16	625	993	800:40:16	10.0	25.0	512 1024 2048	63.55	GDDR3 GDDR4 GDDR5	256	1000	200.0	110	4-Way Crossfire	10.1	3.3	1.0	199 (149)

Radeon HD 4860	Sep 9, 2009	RV790 GT	55	959	282	PCIe 2.0 ×16	700	750	640:32:16	11.2	22.4	512 1024	96	GDDR5	256	896.0	179.2	130	10.1	3.3	1.0	?

Radeon HD 4870	Jun 25, 2008	RV770 XT	55	956	256	PCIe 2.0 ×16	750	900	800:40:16	12.0	30.0	512 1024 2048	115.2	GDDR5	256	1200	240.0	150	10.1	3.3	1.0	299 (225)

Radeon HD 4890	Apr 2, 2009	RV790 XT	55	959	282	PCIe 2.0 ×16	850	975	800:40:16	13.6	34.0	1024 2048	124.8	GDDR5	256	1360	272.0	190	10.1	3.3	1.0	249

Radeon HD 4850 X2	Nov 7, 2008	R700 (2xRV770 PRO)	55	956×2	256×2	PCIe 2.0 ×16	625	995	800:40:16×2	10.0×2	25.0×2	512×2 1024×2	63.7×2	GDDR3	256x2	2000	400.0	250	2-Way Crossfire	10.1	3.3	1.0	339

Radeon HD 4870 X2	Aug 12, 2008	R700 (2xRV770 XT)	55	956×2	256×2	PCIe 2.0 ×16	750	900	800:40:16×2	12×2	30×2	1024×2	115.2×2	GDDR5	256x2	2400	480.0	286	10.1	3.3	1.0	449

Model4	Launch	Code name	Fab (nm)	Transistors (million)	Die size (mm2)	Bus interface	Clock rate	Core config1	Fillrate	Memory2	Processing power (GFLOPS)	TDP3 (Watts)	Crossfire Support	API support (version)	Release Price (USD)

Core (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.	Direct3D	OpenGL	OpenCL

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