Engineering:Radeon X800 series

ATI Radeon X800 series

Release date	May 4, 2004 (May 4, 2004)
Codename	Loki
Architecture	Radeon R400
Transistors	160M 130nm (R420) 160M 130nm (R423) 160M 110nm (R430) 160M 130nm (R480) 160M 130nm (R481)
Cards
Entry-level	X800 SE, X800, X800 GT
Mid-range	X800 GTO, X800 PRO, X800 XL, X850 PRO
High-end	X800 XT, X850 XT
Enthusiast	X800 XT PE, X850 XT PE
API support
Direct3D	Direct3D 9.0b Shader Model 2.0b
OpenGL	OpenGL 2.0
History
Predecessor	Radeon X700 series
Successor	Radeon X1000 series

Radeon X800 is a series of graphics cards designed by ATI Technologies Inc. introduced in May of 2004.

History of Radeon X800

The Radeon X800 series was designed to take the position X700 XT failed to secure, with 12 pipelines and a 256-bit RAM bus. The card surpassed the 6600GT with performance similar to that of the GeForce 6800. The new X800 XL, a similar product, was positioned to dethrone NVIDIA's GeForce 6800 GT with higher memory speeds and a full 16 pipelines to boost performance. R430 was unable to reach high clock speeds, having been designed to reduce the cost per GPU, creating a need for new top-of-the-line core. The new high-end R4x0-generation arrived with the X850 series, equipped with various core tweaks for slightly higher performance than the "R420"-based X800 series. The "R480"-based X850 line was available in 3 forms: the X850 Pro, the X850 XT, and the X850 XT Platinum Edition, and was built on the reliable high-performance 130 nanometer Low-K process.

Radeon X800 series

AGP (X8xx)

• All models include AGP 8x
• All models include DirectX 9.0b and OpenGL 2.0

Model	Launch	Code name	Fab (nm)	Memory (MiB)	Core clock (MHz)	Memory clock (MHz)	Config core1	Fillrate				Memory
								MOperations/s	MPixels/s	MTexels/s	MVertices/s	Bandwidth (GB/s)	Bus type	Bus width (bit)
Radeon X800 SE	Oct. 2004	R420 (loki)	130	256	425	800	8:6:8:8	3400	6800	3400	637,5	25.6	GDDR3	256
Radeon X800 GT	Dec. 6, 2005	R420 (loki)	130	256	475	980	8:6:8:16	3800	7600	3800	712.5	31.36	GDDR3	256
Radeon X800	Dec. 2004	R430	110	256	400	700	12:6:12:16	4800	6400	4800	600	22.4	GDDR3	256
Radeon X800 GTO	Dec. 6, 2005	R420 (loki)	130	256	400	980	12:6:12:16	4800	6400	4800	600	31.36	GDDR3	256
Radeon X800 Pro	May 5, 2004	R420 (loki)	130	256	475	900	12:6:12:16	5700	7600	5700	712.5	28.8	GDDR3	256
Radeon X800 XL	Feb. 2, 2005	R430	110	256	400	980	16:6:16:16	6400	6400	6400	600	31.36	GDDR3	256
Radeon X800 XT	May 4, 2004	R420 (loki)	130	256	500	1000	16:6:16:16	8000	8000	8000	750	32	GDDR3	256
Radeon X800 XT PE	May 4, 2004	R420 (loki)	130	256	520	1120	16:6:16:16	8320	8320	8320	780	35.84	GDDR3	256
Radeon X850 Pro	Feb. 28, 2005	R481	130	256	507	1040	12:6:12:16	6084	8112	6084	760.5	33.28	GDDR3	256
Radeon X850 XT	Feb. 28, 2005	R481	130	256	520	1080	16:6:16:16	8320	8320	8320	780	34.56	GDDR3	256
Radeon X850 XT PE	Feb. 28, 2005	R481	130	256	540	1180	16:6:16:16	8640	8640	8640	810	37.76	GDDR3	256

• ¹ Pixel shaders : Vertex shaders : Texture mapping units : Render output units

PCI-E (X8xx)

• All models include PCI-E x16, DirectX 9.0b and OpenGL 2.0

Model	Launch	Code name	Fab (nm)	Memory (MiB)	Core clock (MHz)	Memory clock (MHz)	Config core1	Fillrate				Memory
								MOperations/s	MPixels/s	MTexels/s	MVertices/s	Bandwidth (GB/s)	Bus type	Bus width (bit)
Radeon X800 GT 128MB	Aug. 1, 2005	R423 R480 (thor)	130	128	475	350	8:6:8:16	3800	7600	3800	712.5	22.4	DDR	256
Radeon X800 GT 256MB	Aug. 1, 2005	R423 R480 (thor)	130	256	475	980	8:6:8:16	3800	7600	3800	712.5	31.36	GDDR3	256
Radeon X800	Dec. 1, 2004	R430 (thor)	110	128, 256	392	700	12:6:12:16	4704	6272	4704	588	22.4	GDDR3	256
Radeon X800 GTO 128MB	Sept. 15, 2005	R423 R480 R430 (thor)	130 110	128	400	700	12:6:12:16	4800	6400	4800	600	22.4	GDDR3	256
Radeon X800 GTO 256MB	Sept. 15, 2005	R423 R480 R430 (thor)	130 110	256	400	980	12:6:12:16	4800	6400	4800	600	31.36	GDDR3	256
Radeon X800 Pro	May 5, 2004	R423 (thor)	130	256	475	900	12:6:12:16	5700	7600	5700	712.5	28.8	GDDR3	256
Radeon X800 XL	Dec. 1, 2004 (256 MB) May 4, 2005 (512 MB)	R430 (thor)	110	256, 512	400	980	16:6:16:16	6400	6400	6400	600	31.36	GDDR3	256
Radeon X800 XT	Dec. 1, 2004	R423 (thor)	130	256	500	1000	16:6:16:16	8000	8000	8000	750	32	GDDR3	256
Radeon X800 XT Platinum Edition	N/A	R423 (thor)	130	256	520	1120	16:6:16:16	8320	8320	8320	780	35.84	GDDR3	256
Radeon X850 Pro	Dec. 1, 2004	R480 (thor)	130	256	507	1040	12:6:12:16	6084	8112	6084	760.5	33.28	GDDR3	256
Radeon X850 XT	Dec. 1, 2004	R480 (thor)	130	256	520	1080	16:6:16:16	8320	8320	8320	780	34.56	GDDR3	256
Radeon X850 XT CrossFire Master	Sept. 29, 2004	R480 (thor)	130	256	520	1080	16:6:16:16	8320	8320	8320	780	34.56	GDDR3	256
Radeon X850 XT Platinum Edition	Dec. 21, 2004	R480 (thor)	130	256	540	1180	16:6:16:16	8640	8640	8640	810	37.76	GDDR3	256

• ¹ Pixel shaders : Vertex shaders : Texture mapping units : Render output units

See also

• List of AMD graphics processing units
• Free and open-source device drivers: graphics#ATI.2FAMD

External links

• techPowerUp! GPU Database