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To: wanna_bmw who wrote (53474)	8/31/2001 5:26:34 PM
From: fyodor_	Read Replies (2) \| Respond to of 275872

Wanna: If Intel can get even 20% or 30% on those apps that were previously losing big time to AMD, I would consider that a big win for them. Wouldn't you? Most certainly. There's a whole category of applications where the P4 will benefit tremendously from HT (uhmm&#133 I mean&#133 HyperThreading). The majority are ones where the P4 does quite poorly compared to Athlon, so the boost will be quite a big win, indeed. You say that Maya exhibited a 30% increase in performance&#133 That actually surprises the heck out of me. Quite honestly, I must assume Intel was doing something "strange". I'm fairly familiar with Maya, 3D Studio and Lightwave (all professional 3D rendering packages) and the processor utilization is completely maxed out when rendering a complex scene. The vast majority of the calculations performed are double precision floating point (which is why Athlon generally does significantly better in this type, although a dual 1.7GHz P4 actually matches a 1.2GHz AthlonMP using the new version of Maya, which has been heavily optimized for SSE2) and I just don't see how anything could be gained from HyperThreading. These 3D rendering packages are extremely well-programmed and basically max out the processor at all times. Thus, HyperThreading shouldn't be able to increase performance, since all the resources are already fully used&#133 Would you happen to know what Maya was doing when Intel came up with the 30% increase figure? In any event, there are plenty of other applications that certainly would benefit (database packages being one). -fyo