[rescue] WTB: SGI
Joshua D. Boyd
rescue at sunhelp.org
Tue Jun 19 08:23:59 CDT 2001
I just read that paper. I had a question. A two TE machine has nearly a
gigaflop of transformation power. So, does this mean that a G4 can
transform more geometry in software than an Impact can in hardware?
Further, since a well written rasterizer doesn't do a lot of over draw
(think Quake, which rarely draws a pixel more than once), that means that
the ideal rasterizer scales linearly with CPU speed. =20
Time to get out the quake benchmarks ;)
On Tue, 19 Jun 2001, [iso-8859-1] Bj=F6rn Ramqvist wrote:
> Dooh! In my insane way of handling workduty between reading this list, I
> actually screwed things up. Raster Engines (RE) in this case is just
> responsible for pixel-fills, where Texture Engines (TE) actually do the
> texture handling.
> Nevermind. Read a good article regarding I^2 vs Octane Impact graphics
> And if you want a serious comparisation between the actual system:
> /Bjorn, still needing caffeine
> Bj=F6rn Ramqvist wrote:
> > Dave McGuire wrote:
> > >
> > > On June 18, nick at snowman.net wrote:
> > > > I've seen an SI octane for 1195 or so, 195mhz 256 or 512meg. Only =
> > > > the i2 beats it is textureing, and pick up a tex module for 875/2 (=
> > > > was selling two brand new octane tex modules for 875, gah I need
> > > > cash). Once that is done kiss the i2 g'bye.
> > >
> > > Nope, sorry Nick...benchmarks say otherwise. See below. Reprinted
> > > from http://www.futuretech.vuurwerk.nl/gfxtables.html. Granted I'm
> > > comparing I2 MaxImpact with OctaneSI (the equivalent of SolidImpact)
> > > but the I2 MaxImpact goes for $800 and the OctaneSI goes for $1100-12=
> > Ofcourse, you can't compare an I^2 MaxImpact (which is maxed out with
> > 1/4MB TRAM, 2GEs and 2 REs) with a pure Solid Impact Octane (which have
> > no TRAM, only 1 GE and 1 RE). That's like comparing apples with pears!
> > :-)
> > Even if you put 1 or 4 MB TRAM on the Octane/SI, you're still limited
> > with just one RE, which explain the benchmarks.
> > Compare I^2 MaxImpact with Octane/MXI and you're definitly comparing
> > apples with apples. :-)
> > But then again, price-wise that will blow a hole in your wallet.
> > If you want to do even more studies between the systems, things like
> > memory-limits, I/O-subsystems, expansion, etc, etc, should be in count
> > and I'm confident that GIO-64 (Indigo2) won't last long in competition
> > with XIO (Octane).
> > So, we all can be pretty sure about two things;
> > If you need texture/3D: go for Indigo2 MaxImpact
> > If you need anything else: go for Octane/SI
> > ...right? :-)
> > /Bjorn
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