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The charts are categorised by the highest DirectX support the model offers - please use the links below to find the appropriate model.  For information about what the specification terms mean, please click here.
DX6 or earlier	DX7 (TnL)	DX8 (SM1.1)	DX9 (SM2.0)	DX9 (SM3.0)	DX10 (SM4.0)

Model	ATI
	Radeon     HD 2400 Pro	Radeon     HD 2400 XT	Radeon     HD 2600 Pro	Radeon     HD 2600 XT	Radeon     HD 2600 XT	Radeon     HD 2900 Pro	Radeon     HD 2900 XT	Radeon     HD 2900 XT 1 GiB
Core
Codename	RV610	RV610	RV630	RV630	RV630	R600	R600	R600
Process scale (nm)	65	65	65	65	65	80	80	80
Transistor count (millions)	180	180	390	390	390	720	720	720
Core clock speed (MHz)	525	700	600	800	800	600	742	742
Component execution units 1	40	40	120	120	120	320	320	320
Vertex shader version (best)	4.0	4.0	4.0	4.0	4.0	4.0	4.0	4.0
Total effective no. of texture units	4	4	8	8	8	16	16	16
Max pixels output per clock (colour/depth)	4 / 8	4 / 8	4 / 8	4 / 8	4 / 8	16 / 32	16 / 32	16 / 32
Pixel shader version (bset)	4.0	4.0	4.0	4.0	4.0	4.0	4.0	4.0
Overall DirectX level	10	10	10	10	10	10	10	10
Memory
Interface width (bits)	64	64	128	128	128	512	512	512
Interface type	GDDR2	GDDR2/3	GDDR3	GDDR3	GDDR4	GDDR3	GDDR3	GDDR4
Clock speed (MHz)	400	700	400	700	1100	800	825	1000
Theoretical Peak Performance
Vertex processing rate (Gverts/sec)	1.31	1.75	4.50	6.00	6.00	12.4	14.8	14.8
Pixel processing rate (Gpixels/sec)	5.25	7.00	18.0	24.0	24.0	48.0	59.4	59.4
Texel applied rate (Gtexels/sec)	2.10	2.80	4.80	6.40	6.40	9.60	11.9	11.9
Pixel output rate (Gpixels/sec)	2.10	2.80	2.40	3.20	3.20	9.60	11.9	11.9
Memory bandwidth (GB/sec)	6.4	11.2	12.8	22.4	35.2	102.4	105.6	128.0

	Radeon     HD 3450	Radeon     HD 3470	Radeon     HD 3650	Radeon     HD 3650	Radeon     HD 3850	Radeon     HD 3870	Radeon     HD 3870 X2	All-in-Wonder HD
Core
Codename	RV620	RV620	RV635	RV635	RV670	RV670	RV680	RV635
Process scale (nm)	55	55	55	55	55	55	55	55
Transistor count (millions)	181	181	378	378	666	666	2 x 666	378
Core clock speed (MHz)	600	800	725	725	670	775	825	725
Component execution units 1	40	40	120	120	320	320	2 x 320	120
Vertex shader version (best)	4.1	4.1	4.1	4.1	4.1	4.1	4.1	4.1
Total effective no. of texture units	4	4	8	8	16	16	2x 16	8
Max pixels output per clock (colour/depth)	4 / 8	4 / 8	4 / 8	4 / 8	16 / 32	16 / 32	2 x 16 / 32	4 / 8
Pixel shader version (bset)	4.1	4.1	4.1	4.1	4.1	4.1	4.1	4.1
Overall DirectX level	10.1	10.1	10.1	10.1	10.1	10.1	10.1	10.1
Memory
Interface width (bits)	64	64	128	128	256	256	2 x 256	128
Interface type	DDR2	GDDR3	DDR2	GDDR3	GDDR3	GDDR4	GDDR3	DDR2
Clock speed (MHz)	500	850	500	800	830	1125	900	600
Theoretical Peak Performance
Vertex processing rate (Gverts/sec)	1.50	2.00	5.44	5.44	13.4	15.5	33.0 2	5.44
Pixel processing rate (Gpixels/sec)	6.00	8.00	21.8	21.8	53.6	62.0	132.0 2	21.8
Texel applied rate (Gtexels/sec)	2.40	3.20	5.80	5.80	10.7	12.4	26.4 2	5.80
Pixel output rate (Gpixels/sec)	2.40	3.20	2.90	2.90	10.7	12.4	26.4 2	2.90
Memory bandwidth (GB/sec)	8.0	15.2	16.0	25.6	53.1	72.0	115.2 2	19.2

	Radeon     HD 4450	Radeon     HD 4470	Radeon     HD 4650	Radeon     HD 4670	Radeon     HD 4850	Radeon     HD 4870	Radeon HD 4870 X2
Core
Codename	RV710 ?	RV710 ?	RV730	RV730	RV770	RV770	R700
Process scale (nm)	55	55	55	55	55	55	55
Transistor count (millions)	?	?	?	?	956	956	2 x 956
Core clock speed (MHz)	?	?	?	?	625	750	750
Component execution units 1	40 ?	40 ?	320	320	800	800	2 x 800
Vertex shader version (best)	4.1	4.1	4.1	4.1	4.1	4.1	4.1
Total effective no. of texture units	?	?	16 ?	16 ?	40	40	2 x 40
Max pixels output per clock (colour/depth)	4 / 16 ?	4 / 16 ?	8 / 32 ?	8 / 32 ?	16 / 64	16 / 64	2 x 16 / 64
Pixel shader version (bset)	4.1	4.1	4.1	4.1	4.1	4.1	4.1
Overall DirectX level	10.1	10.1	10.1	10.1	10.1	10.1	10.1
Memory
Interface width (bits)	128 ?	128 ?	128	128	256	256	2 x 256
Interface type	?	GDDR3 ?	GDDR3 ?	GDDR3 ?	GDDR3	GDDR5	GDDR5
Clock speed (MHz)	?	?	?	?	993	900	900
Theoretical Peak Performance
Vertex processing rate (Gverts/sec)	?	?	?	?	31.3	37.5	75.0 2
Pixel processing rate (Gpixels/sec)	?	?	?	?	125.0	150.0	300.0 2
Texel applied rate (Gtexels/sec)	?	?	?	?	25.0	29.0	58.0 2
Pixel output rate (Gpixels/sec)	?	?	?	?	10.0	12.0	24.0 2
Memory bandwidth (GB/sec)	?	?	?	?	63.6	115.2	230.4 2

Model	Intel
	GMA X3100	GMA X3100
Core
Process scale (nm)	?	?
Transistor count (millions)	?	?
Core clock speed (MHz)	up to 667	667
Component execution units 1	8	8
Vertex shader version (best)	4.0	4.0
Total effective no. of texture units	4?	4?
Max pixels output per clock (colour/depth)	2 / 4	2 / 4
Pixel shader version (best)	4.0	4.0
Overall DirectX level	10	10
Memory
Interface width (bits)	System Memory	System Memory
Interface type	DDR / DDR2	DDR2
Clock speed (MHz)	up to 800	up to 800
Theoretical Peak Performance
Vertex processing rate (Mverts/sec)	up to ~ 333?	~ 333?
Pixel processing rate (Mpixels/sec)	up to 1333	1333
Texel applied rate (Mtexels/sec)	up to 2666?	2666?
Pixel output rate (Mpixels/sec)	up to 1333	1333
Memory bandwidth (GB/sec)	up to 12.8	12.8

Model	NVIDIA
	GeForce 8400 GS	GeForce   8500 GT	GeForce 8600 GT	GeForce 8600 GTS	GeForce 8800 GT	GeForce 8800 GTS 320 / 640 MiB	GeForce 8800 GTS 512 MiB	GeForce 8800 GTX	GeForce 8800 Ultra
Core
Codename	G86	G86	G84	G84	G92	G80	G92	G80	G80
Process scale (nm)	80	80	80	80	65	80	65	90	90
Transistor count (millions)	210	210	289	289	754	681	754	681	681
Core / Shader clock speed (MHz)	450 / 900	450 / 900	540 / 1190	675 / 1190	600 / 1500	500 / 1200	650 / 1650	575 / 1350	612 / 1500
Component execution units 1	16	16	32	32	112	96	128	128	128
Vertex shader version (best)	4.0	4.0	4.0	4.0	4.0	4.0	4.0	4.0	4.0
Total effective no. of texture units	8	8	16	16	56 3	24 3	64 3	32 3	32 3
Max pixels output per clock (colour/depth)	4 / 32	4 / 32	8 / 64	8 / 64	16 / 128	20 / 160	16 / 128	24 / 192	24 / 192
Pixel shader version (bset)	4.0	4.0	4.0	4.0	4.0	4.0	4.0	4.0	4.0
Overall DirectX level	10	10	10	10	10	10	10	10	10
Memory
Interface width (bits)	64	128	128	128	256	320	256	384	384
Interface type	GDDR2	GDDR2	GDDR3	GDDR3	GDDR3	GDDR3	GDDR3	GDDR3	GDDR3
Clock speed (MHz)	400	400	700	1000	900	800	970	900	1080
Theoretical Peak Performance
Vertex processing rate (Gverts/sec)	0.90	0.90	2.38	2.90	10.5	7.20	13.0	10.8	12.0
Pixel processing rate (Gpixels/sec)	3.60	3.60	9.52	11.6	42.0	28.8	52.0	43.2	48.0
Texel applied rate (Gtexels/sec)	3.60	3.60	8.64	10.8	33.6	12.0	41.6	18.4	19.6
Pixel output rate (Gpixels/sec)	1.80	1.80	4.32	5.40	9.60	10.0	10.4	13.8	14.76
Memory bandwidth (GB/sec)	6.4	12.8	22.4	32.0	57.6	64.0	62.1	86.4	103.7

	GeForce 9500 GT	GeForce 9600 GT	GeForce   9600 GSO (8800 GS)	GeForce   9800 GT	GeForce 9800 GTX	GeForce 9800 GTX+	GeForce 9800 GX2
Core
Codename	G96	G94	G92	G92b	G92	G92b	G92
Process scale (nm)	65	65	65	65	65	55	65
Transistor count (millions)	314	505	754	754	754	754	2 x 754
Core / Shader clock speed (MHz)	550 / 1400	650 / 1625	550 / 1375	600 / 1500	675 / 1688	738 / 1836	600 / 1500
Component execution units 1	32	64	96	112	128	128	2 x 128
Vertex shader version (best)	4.0	4.0	4.0	4.0	4.0	4.0	4.0
Total effective no. of texture units	16	32	48	56	64	64	2 x 64
Max pixels output per clock (colour/depth)	8 / 64	16 / 128	12 / 96	16 / 128	16 / 128	16 / 128	2 x 16 / 128
Pixel shader version (bset)	4.0	4.0	4.0	4.0	4.0	4.0	4.0
Overall DirectX level	10	10	10	10	10	10	10
Memory
Interface width (bits)	128	256	192	256	256	256	2 x 256