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Author Topic: Quake 3 on OS4 Classic  (Read 12822 times)

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Offline matthey

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Re: Quake 3 on OS4 Classic
« on: February 28, 2014, 09:20:15 PM »
Quote from: delshay;759900
I was forced to upgrade to 53c710-1 "faster version" as SCSI needs to cope with faster bus. There's no doubt this game can be played on classic amiga,but I think its going to need the minimum 41.5Mhz PCI bus.

This game works fine on a PC with Permedia 2 and AGP slot,so a fast PCI slot should allow this game to work on classic.


It's not all about PCI speed. If the gfx card has enough memory to hold all the textures for a level then the game is not going to use the PCI bus nearly as much. A Voodoo 3 (16MB) or Voodoo4/5 (32MB) even with a slow PCI bus Mediator may outperform the Permedia 2 if it has to recopy textures across the PCI bus very often.
 

Offline matthey

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Re: Quake 3 on OS4 Classic
« Reply #1 on: March 01, 2014, 03:55:43 AM »
Quote from: delshay;759921
Upload texture across 66Mhz+ PCI bus with DMA may show same performance as on PC.

But which is faster, uploading a bunch of textures once at the beginning of the game or level at 10MB/s or constantly during the game at 120MB/s? Warp3D has auto texture management so it will constantly swap textures in and out of gfx memory as needed. A full bandwidth PCI bus may be usable when this is happening but with enough gfx memory it doesn't happen. Performance isn't always about bandwidth. How it's managed can be just as important.