Xabre

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SiS will be bringing the Xabre chip to market in several different flavors, the first of which will be the Xabre400, which will also be the fastest version for the time being. Two more versions, the 200 and 80, will be introduced later as less expensive alternatives. While the two bigger versions will differ only in clockspeed, the small 80 version will lack an AGP 8x interface and be limited to using either simple 128 bit SDRAM or 64 bit DDR-RAM. That clearly makes this version a perfect choice for system integrators and the low-cost OEM market. Here's an overview of the chips:

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Header Cell - Column 0	NVIDIA GeForce4 Ti4200	NVIDIA GeForce4 MX460	ATI Radeon 8500	ATI Radeon 9000 Pro	SiS Xabre400
Chip Technology	256 bit	256 bit	256 bit	256 bit	256 bit
Process	0.15 Micron	0.15 Micron	0.15 Micron	0.15 Micron	0.15 Micron
Transistors	63 Mio	-	60 Mio	-	-
Memory Bus	128 bit DDR	128 bit DDR	128 bit DDR	128 bit DDR	128 bit DDR
Memory Bandwidth	8,2 GB/s	8,8 GB/s	8,8 GB/s	8,8 GB/s	8,2 GB/s
AGP Bus	1x/2x/4x	1x/2x/4x	1x/2x/4x	1x/2x/4x/8x	1x/2x/4x/8x
Memory	64/128 MB	128 MB	64/128 MB	64/128 MB	64 MB
GPU Clock	250 MHz	300 MHz	275 MHz	275 MHz	250 MHz
Memory Clock	(514) MHz 64 MB(444) MHz 128 MB	275 (550)	MHz 275 (550)	MHz 275 (550)	MHz 250 (500) MHz
Memory	SD/BGA 3,3-4ns	BGA 3,3ns	SD/BGA 3,3ns	SD	SD 3,3-4ns
Vertex Shader	2	-	2	2	-
Pixel Pipelines	4	2	4	4	4
Texture Units Per Pipe	2	2	2	1	2
Textures per Texture Unit	4	4	3	6	4
Vertex S. Version	1.1	-	1.1	1.1	1.1
Pixel S. Version	1.3	-	1.4	1.4	1.3
DirectX Generation	8	7.1	8.1	8.1	8.1
FSAA Modi	Multi Sampling	Multi Sampling	Super Sampling	Super Sampling	Super Sampling
Memory Optmizations	LMA II	LMA II	Hyper Z II	Hyper Z II	Not Specified
Display Outputs	2	2	2	2	2
Chip Internal Ramdacs	2 x 400 MHz	2 x 400 MHz	2 x 400 MHz	2 x 400 MHz	1 x 400 MHz, 1x 160 MHz
Chip External Ramdacs	-	-	-	-	SiS 301B
Bits per Color Channel	8	8	8	8	8
Special	-	TV Encoder On-Chip	-	TV Encoder On-Chip; FullStream	Row 23 - Cell 5
Estimated Price	~ $179	$149	$179	$149	$149

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