硬件风云--Video logic 显卡

Chip	PowerVR PCX1	PowerVR PCX2	PowerVR 250	Kyro	Kyro II	Kyro IISe
Date	1996	1997	1999	2000	2001	2002
Serie	Serie 1		Serie 2	Serie 3
	NEC		NEC	ST Microelectronics
	0,35 micron		0,25 micron		0,18 micron
	0,6	1,2	4	12	15	15 (?)
	32 bit SDR	32 bit SDR	64 bit SDR	128 bit SDR
Chip	60 MHz	66 MHz	125 MHz	115 MHz	175 MHz	200 MHz
Interface	PCI	PCI	PCI/AGP(2x)	PCI/AGP(4x)	AGP (2x)	AGP(4x)
Pixelpipelines	1	1	1	2	2	2
Textureinheiten	1	1	1	1	1	1
M/Pixel	60	66	125	230	350	400
Bandbreite (MB/Sek.)	240	264	1000	1840	2800	3200
Mill. Polygone/Sek.	ca. 1	ca. 1,2	5	12	15	?
Texturen per pass	1			8
RAMDAC	-		250 MHz	270 MHz	300 MHz
	256x256x32bit		1024x1024x32bit
max. Memory	4 MB SDRAM		32MB SDRAM	64 MB SDRAM
FSAA	-		Supersampling 4x (D3D)	Supersampling 1x2, 2x1, 2x2
	-		VQTC	DXTC1
API	PVRSGL,OpenGL,D3D (DX3)		OGL,D3D (DX7)	OpenGL, D3D (DX7)
	ISP,TSP,texture mapping	bilineare+ trilineare Filterung, mipmap,table fog,vertex fog	TA,anisotrope Filterung, embossed + EMBM	internal true color,alpha test,DOT3,Z load and store,		enTal (D3D), Focus TV-encoder