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To: wanna_bmw who wrote (62242)11/5/2001 2:41:52 PM
From: jcholewaRead Replies (1) | Respond to of 275872
 
> 3D games or web content can probably benefit
> from this as well.

3D games use single precision fp registers. SSE2 operates on double precision fp regs. These are mutually exclusive, pretty much.

Web content is up in the air. After two years of web benchmarks, I'm still uncertain as to actually what they are. The whole thing about the bottleneck not actually existing in the computer system itself gets to me.

> maybe a 512KB L2 cache on Northwood will improve
> scores on Integer apps.

Adding cache most certainly will improve scores on many kinds of apps (not just the sort that uses the GP regs). I am looking forward to seeing what sort of effect it has. Incidentally, does anybody have any idea about Northwood's release date? All I know right now is Q1, 2.20GHz, 130nm, 512KB L2. :/



To: wanna_bmw who wrote (62242)11/5/2001 2:56:58 PM
From: Joe NYCRead Replies (1) | Respond to of 275872
 
wbmw,

I guess if the performance of SSE-2 reaches a point when there is no penalty for double precision, the games may switch to it, but as long as single precision is acceptable and delivers higher performance, there may not be the urgency to go to double precision.

joe