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小弟最近在beyond3D上转悠,发了个贴,结果得了个这样的贴,wepcinlife上的老鸟,开发者,大虾指点迷津,不吝赐教!!
I believe Sony or Nvidia announced RSX would be running at 550MHz with 700MHz DDR RAM, but there's been some recent talk that it's been downgraded to 500MHz with 650MHz DDR.
A lot of people have mentioned a lot of desktop video cards to compare RSX to, but they're all wrong. RSX, assuming its original core and memory clock speeds and origins ("NV47-based"), is most like a 7800GTX-512, but with somewhat less than half the bandwidth. Of course, that's still not precise, since it doesn't account for the fact that RSX has
1) some extra texture cache,
2) half the ROPs, and
3) (probably most importantly) a tight connection to Cell and Cell's memory in a closed environment.
The fact that RSX was touted as being NV47-based may mean each pixel "pipeline" is just MADD + MUL, rather than the MADD + MADD of the G70 series (7600, 7900, etc.)
小弟不懂了:funk: :funk: ,这额外的材质缓存是什么???显示芯片不是除了寄存器就没别的了么??缓存哪来的??
还有,他说RSX的管线配置是和G71不同,对吗??如果对,到底是G71的累加-累加好,还是RSX的累乘-累加好??
谢谢大家!:p :p |
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