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http://www.theregister.com/2004/03/11/ati_drops_pixel_vertex_shader/
ATI 'drops pixel, vertex shader 3.0 support' from R420
By Tony Smith
Published Thursday 11th March 2004 09:59 GMT
ATI's upcoming R420 graphics chip will not support DirectX 9's version three
pixel and vertex shaders.
So claims German web site 3D Center, saying that the absence is "beyond
doubt".
The site argues that since the R420 is derived from the older, proven R300
architecture, it would never have been easy to 'bolt on' pixel and vertex
shader 3.0 support, so ATI instead decided to focus on improving shader 2.0
support. Indeed, it concludes that ATI even believes shader 3.0 support
isn't as important as some gamers and other graphics chip fans might think.
Shader 3.0 is "a beautiful, but rather useless check list feature", the site
says.
Essentially, shader 3.0 support won't be necessary until the next generation
of graphics chips arrives with the upcoming 'Longhorn' version of Windows in
mind. By then there should be much better shader 3.0 support in games, too -
there aren't any yet.
Much better, then, to focus on the technology that today's - and
tomorrow's - games do support, and make it work faster. That means shader
2.0.
The R420 will deliver that through its eight rendering pipelines containing
an unknown number of texture units and six vertex units. The 160 million
transistor chip will be fabbed at 130nm by TSMC. It will support DDR, GDDR 2
and GDDR 3 across a 256-bit interface. It is expected to be used in AGP 8x
boards.
Of course, Nvidia will tout shader 3.0 support when it launches the
long-awaited NV40 later this year. ®
http://www.theregister.com/2004/03/11/ati_drops_pixel_vertex_shader/
ATI 'drops pixel, vertex shader 3.0 support' from R420
By Tony Smith
Published Thursday 11th March 2004 09:59 GMT
ATI's upcoming R420 graphics chip will not support DirectX 9's version three
pixel and vertex shaders.
So claims German web site 3D Center, saying that the absence is "beyond
doubt".
The site argues that since the R420 is derived from the older, proven R300
architecture, it would never have been easy to 'bolt on' pixel and vertex
shader 3.0 support, so ATI instead decided to focus on improving shader 2.0
support. Indeed, it concludes that ATI even believes shader 3.0 support
isn't as important as some gamers and other graphics chip fans might think.
Shader 3.0 is "a beautiful, but rather useless check list feature", the site
says.
Essentially, shader 3.0 support won't be necessary until the next generation
of graphics chips arrives with the upcoming 'Longhorn' version of Windows in
mind. By then there should be much better shader 3.0 support in games, too -
there aren't any yet.
Much better, then, to focus on the technology that today's - and
tomorrow's - games do support, and make it work faster. That means shader
2.0.
The R420 will deliver that through its eight rendering pipelines containing
an unknown number of texture units and six vertex units. The 160 million
transistor chip will be fabbed at 130nm by TSMC. It will support DDR, GDDR 2
and GDDR 3 across a 256-bit interface. It is expected to be used in AGP 8x
boards.
Of course, Nvidia will tout shader 3.0 support when it launches the
long-awaited NV40 later this year. ®