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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)	DX11 (SM5.0)

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 4350	Radeon      HD 4450	Radeon    HD 4650	Radeon     HD 4670	Radeon    HD 4750	Radeon    HD 4770	Radeon   HD 4830	Radeon    HD 4850
ore
Codename	RV710	RV710	RV730	RV730	RV740	RV740	RV770	RV770
Process scale (nm)	55	55	55	55	40	40	55	55
Transistor count (millions)	242	242	514	514	826	826	956	956
Core clock speed (MHz)	575	600	600	750	?	750	575	625
Component execution units 1	80	80	320	320	640	640	640	800
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	8 4	8 4	32 4	32 4	32 4	32 4	32 4	40 4
Max pixels output per clock (colour/depth)	4 / 16	4 / 16	8 / 32	8 / 32	16 / 64	16 / 64	16 / 64	16 / 64
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	128	128	256	256
Interface type	DDR2	GDDR3	DDR2	GDDR3	?	GDDR5	GDDR3	GDDR3
Clock speed (MHz)	500	800	500	1000	?	800	900	993
Theoretical Peak Performance
Vertex processing rate (Gverts/sec)	2.88	3.00	12.0	15.0	?	30.0	23.0	31.3
Pixel processing rate (Gpixels/sec)	11.5	12.0	48.0	60.0	?	120.0	92.0	125.0
Texel applied rate (Gtexels/sec)	4.6 4	4.8 4	9.6 4	12.0 4	?	24.0 4	18.4 4	20.0 4
Pixel output rate (Gpixels/sec)	2.3	2.4	4.8	6.0	?	12.0	9.2	10.0
Memory bandwidth (GB/sec)	8.00	12.8	16.0	32.0	?	51.2	57.6	63.6

	Radeon   HD 4860	Radeon   HD 4870	Radeon   HD 4890	Radeon      HD 4850 X2	Radeon     HD 4870 X2
Core
Codename	RV790	RV770	RV790	R700	R700
Process scale (nm)	55	55	55	55	55
Transistor count (millions)	960	956	960	2 x 956	2 x 956
Core clock speed (MHz)	700	750	850	650	750
Component execution units 1	640	800	800	2 x 800	2 x 800
Vertex shader version (best)	4.1	4.1	4.1	4.1	4.1
Total effective no. of texture units	32 4	40 4	40 4	2 x 40 4	2 x 40 4
Max pixels output per clock (colour/depth)	16 / 64	16 / 64	16 / 64	2 x 16 / 64	2 x 16 / 64
Pixel shader version (bset)	4.1	4.1	4.1	4.1	4.1
Overall DirectX level	10.1	10.1	10.1	10.1	10.1
Memory
Interface width (bits)	256	256	256	2 x 256	2 x 256
Interface type	GDDR5	GDDR5	GDDR5	GDDR3	GDDR5
Clock speed (MHz)	750	900	975	993	900
Theoretical Peak Performance
Vertex processing rate (Gverts/sec)	28.0	37.5	42.5	65.0 2	75.0 2
Pixel processing rate (Gpixels/sec)	112.0	150.0	170.0	260.0 2	300.0 2
Texel applied rate (Gtexels/sec)	22.4 4	24.0 4	27.2 4	41.6 2, 4	48.0 2, 4
Pixel output rate (Gpixels/sec)	11.2	12.0	13.6	20.8 2	24.0 2
Memory bandwidth (GB/sec)	96.0	115.2	124.8	127.1 2	230.4 2

Model	Intel
	GMA X3100	GMA X3500	GMA X4500	GMA X4500 HD
Core
Process scale (nm)	?	?	65	65
Transistor count (millions)	?	?	?	?
Core clock speed (MHz)	up to 667	667	up to 800	800
Component execution units 1	8	8	10	10
Vertex shader version (best)	4.0	4.0	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	4.0	4.0
Overall DirectX level	10	10	10	10
Memory
Interface width (bits)	System Memory	System Memory	System Memory	System Memory
Interface type	DDR / DDR2	DDR2	DDR2 / DDR3	DDR2 / DDR3
Clock speed (MHz)	up to 800	up to 800	up to 800 / 1066	up to 800 / 1066
Theoretical Peak Performance
Vertex processing rate (Mverts/sec)	up to ~ 333 ?	~ 333 ?	up to ~ 416 ?	~ 416 ?
Pixel processing rate (Mpixels/sec)	up to 1333	1333	up to 1666	1666
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	up to 12.8	up to 12.8	up to 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 9400 GT	GeForce 9500 GS	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	G96b	G96	G96 / G96b	G94 / G94b	G92	G92b	G92	G92b	G92
Process scale (nm)	55	65	65 / 55	65 / 55	65	65	65	55	65
Transistor count (millions)	314	314	314	505	754	754	754	754	2 x 754
Core / Shader clock speed (MHz)	550 / 1350	550 / 1375	550 / 1400	650 / 1625	550 / 1375	600 / 1500	675 / 1688	738 / 1836	600 / 1500
Component execution units 1	16	32	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	4.0	4.0
Total effective no. of texture units	8	16	16	32	48	56	64	64	2 x 64
Max pixels output per clock (colour/depth)	8 / 64	8 / 64	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	4.0	4.0
Overall DirectX level	10	10	10	10	10	10	10	10	10
Memory
Interface width (bits)	128	128	128	256	192	256	256	256	2 x 256
Interface type	DDR2 / GDD3	DDR2	DDR2 / GDD3	GDDR3	GDDR3	GDDR3	GDDR3	GDDR3	GDDR3
Clock speed (MHz)	400 / 800	500	500 / 800	900	800	900	1100	1100~1200	1000
Theoretical Peak Performance
Vertex processing rate (Gverts/sec)	1.35	2.75	2.80	6.50	8.25	10.5	13.5	14.7	24.0 2
Pixel processing rate (Gpixels/sec)	5.4	11.0	11.2	26.0	33.0	42.0	54.0	58.8	96.0 2
Texel applied rate (Gtexels/sec)	4.40	8.80	8.80	20.8	26.4	33.6	43.2	47.2	76.8 2
Pixel output rate (Gpixels/sec)	4.40	4.40	4.40	10.4	6.6	9.60	10.8	11.8	19.2 2
Memory bandwidth (GB/sec)	12.8 / 25.6	16.0	16.0 / 25.6	57.6	38.4	57.6	70.4	70.4~76.8	128.0 2

	GeForce     G100	GeForce     GT 120	GeForce     GT 130	GeForce     GTS 150	GeForce   G210	GeForce   GT220	GeForce   GTS 250
Core
Codename	G96b	G96b	G94b	G92b	GT218	GT216	G92b
Process scale (nm)	55	55	55	55	40	40	55
Transistor count (millions)	314	314	505	754	260	486	754
Core / Shader clock speed (MHz)	567 / 1400	500 / 1400	500 / 1250	738 / 1836	675 / 1450	625 / 1360	738 / 1836
Component execution units 1	8	32	48	128	16	48	128
Vertex shader version (best)	4.0	4.0	4.0	4.0	4.1	4.1	4.0
Total effective no. of texture units	8	16	24	64	16	16	64
Max pixels output per clock (colour/depth)	4 / 32	8 / 64	12 / 96	16 / 128	8 / 64	8 / 64	16 / 128
Pixel shader version (bset)	4.0	4.0	4.0	4.0	4.1	4.1	4.0
Overall DirectX level	10	10	10	10	10.1	10.1	10
Memory
Interface width (bits)	64	128	192	256	64	128	256
Interface type	DDR2	DDR2	DDR2	GDDR3	DDR2	GDDR3	GDDR3
Clock speed (MHz)	500	500	500	1000	400	900	1100
Theoretical Peak Performance
Vertex processing rate (Gverts/sec)	2.8	11.2	3.7	14.7	2.9	8.2	14.7
Pixel processing rate (Gpixels/sec)	11.2	44.8	15.0	58.8	11.6	32.6	58.8
Texel applied rate (Gtexels/sec)	4.5	8.0	12.0	47.2	10.8	10.0	47.2
Pixel output rate (Gpixels/sec)	2.3	4.0	6.0	11.8	5.4	5.0	11.8
Memory bandwidth (GB/sec)	8.0	16.0	24.0	64.0	6.4	28.8	70.4

	GeForce     GTX 260	GeForce     GTX 260 (216)	GeForce     GTX 260 (216)	GeForce   GTX 275	GeForce     GTX 280	GeForce     GTX 285	GeForce     GTX 295
Core
Codename	GT200	GT200	GT200b	GT200b	GT200	GT200b	GT200b
Process scale (nm)	65	65	55	55	65	55	55
Transistor count (millions)	1400	1400	1400	1400	1400	1400	2 x 1400
Core / Shader clock speed (MHz)	576 / 1242	576 / 1242	576 / 1242	632 / 1404	602 / 1296	648 / 1476	576 / 1242
Component execution units 1	192	216	216	240	240	240	2 x 240
Vertex shader version (best)	4.0	4.0	4.0	4.0	4.0	4.0	4.0
Total effective no. of texture units	64	72	72	80	80	80	2 x 80
Max pixels output per clock (colour/depth)	28 / 224	28 / 224	28 / 224	28 / 224	32 / 256	32 / 256	2 x 28 / 224
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)	448	448	448	448	512	512	2 x 448
Interface type	GDDR3	GDDR3	GDDR3	GDDR3	GDDR3	GDDR3	GDDR3
Clock speed (MHz)	999	999	999	1134	1107	1242	999
Theoretical Peak Performance
Vertex processing rate (Gverts/sec)	14.9	16.8	16.8	21.0	19.4	22.1	37.3 2
Pixel processing rate (Gpixels/sec)	59.6	67.1	67.1	84.3	77.8	88.6	149.0 2
Texel applied rate (Gtexels/sec)	36.8	41.4	41.4	50.6	48.2	51.8	92.2 2
Pixel output rate (Gpixels/sec)	16.1	16.1	16.1	17.7	19.3	20.7	32.2 2
Memory bandwidth (GB/sec)	111.9	111.9	111.9	127.0	141.7	159.0	223.8 2

Model	S3
	Chrome     430 GT	Chrome     430 GTX
Core
Process scale (nm)	65	65
Transistor count (millions)	?	?
Core / Shader clock speed (MHz)	625 / 900	725 / ?
Component execution units 1	32?	32?
Vertex shader version (best)	4.1	4.1
Total effective no. of texture units	?	?
Max pixels output per clock (colour/depth)	?	?
Pixel shader version (bset)	4.1	4.1
Overall DirectX level	10.1	10.1
Memory
Interface width (bits)	64	64
Interface type	500	700
Clock speed (MHz)	GDDR2	GDDR3
Theoretical Peak Performance
Vertex processing rate (Gverts/sec)	1.8?	?
Pixel processing rate (Gpixels/sec)	7.2?	?
Texel applied rate (Gtexels/sec)	?	?
Pixel output rate (Gpixels/sec)	?	?
Memory bandwidth (GB/sec)	8.0	11.2

Notes

1 - All GPU vendors use a unified architecture for their DX10 chips - this means execution units are used to process all kinds of components (vertex, geometry and pixel).  Previous architectures had    pipelines of units dedicated for each type of component.

2 - The ATI Radeon HD 3870 X2. 4850 X2, 4870 X2 and NVIDIA GeForce 9800 GX2 and GTX 295 are composed of two GPUs.  The performance figures are calculated for when operating in AFR (alternate frame rendering) mode.

3 - The complete G80 chip has 32 texture addressing units and 64 units to fetch and bilinear filter texels; the complete G92 chip has 64 addressing and fetch/filtering units.  This is why there is a significant difference in the "texel applied rate" between the two processors.

4 - The RV770/RV790 has 32 fixed function interpolators, the RV730 has 16. The displayed texture fillrate figures reflect the impact the interpolators have on the theoretical maximum values.  When using AF, however, this limitation does not restrict the texturing ability.

© 3D Graphics Card Specifications - N D Evanson 2010