PCDVD數位科技討論區

PCDVD數位科技討論區 (https://www.pcdvd.com.tw/index.php)
-   顯示卡討論區 (https://www.pcdvd.com.tw/forumdisplay.php?f=8)
-   -   Sun's XVR 1000 (https://www.pcdvd.com.tw/showthread.php?t=83268)

idiot 2002-03-16 08:18 AM

Sun's XVR 1000
 
38-bit RBGA color (30-bit RGB + 8-bit Alpha)
32MB PC800 DRDRAM 1.6GB/sec
256 MB of SDRAM for texture memory
a framebuffer implementing 72 MB of Mitsubishi's 3DRAM64

"Within its on-chip pixel ALU, the 3D-RAM is able to convert Z-buffer operations and pixel blends from "read-modify-writes" to "mostly writes," thereby completing data modifications in one pixel buffer clock cycle and reducing execution time by up to 75 percent. The ALU has four 8-bit ROP units, four 8-bit blend units, one 32-bit match comparator, and one 32-magnitude comparator.

The on-board pixel buffer can hold up to eight blocks of data, each block containing 256 bits, and has cycle times of 8 ns and 10 ns. With the 256-bit global bus operating at a maximum speed of 20 ns and transferring 32-byte blocks, data can be moved from the DRAM banks to the pixel buffer at a rate of up to 1.6 Gbytes/sec. "









http://www.sun.com/smrc/photos-prod/ppgraphXVR1000.html

X武者 2002-03-16 09:05 AM

Re: Sun's XVR 1000
 
看看就好...沒辦法想太多~^^d


所有的時間均為GMT +8。 現在的時間是08:29 PM.

vBulletin Version 3.0.1
powered_by_vbulletin 2026。