Tyan Tiger & non-MP Athlons

Luc Renambot renambot at cs.vu.nl
Wed Mar 6 04:40:57 EST 2002


> -----Original Message-----
> From: beowulf-admin at beowulf.org [mailto:beowulf-admin at beowulf.org]On
> Behalf Of Mark Hahn
> Sent: Wednesday, March 06, 2002 01:19
> To: Frank Joerdens
> Cc: beowulf at beowulf.org
> Subject: Re: Tyan Tiger & non-MP Athlons
>
>
> > just saw at Benchmark at
> > http://www6.tomshardware.com/cpu/02q1/020117/p4_3000-08.html
> > which suggests that the Athlon's performance with 3D rendering is rather
> > pathetic compared to the PIV
>
> well, on lightwave, that's sure how it looks.  but quake is rendering too
> (the opengl benchmarks), and there AMD is competitive.  but an alternative
> explanation is simply that lightwave is well-tuned for the P4.
>

Just to clear something, I would assume that the lightwave benchmark
is software rendering (FP computations like ray-tracing and radiosity)
and doesn't benchmark the modeling phase (in OpenGL).
Quake is an OpenGL application which mainly test the GPU (ok, the
CPUI is important too, but...)
Otherwise you're right, Lightwave 7b uses SSE2 instructions for P4.

Luc.

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