486DX/33 vs Am5x86/133: Quake
Автор: BlackSquirrel7
Загружено: 2011-03-21
Просмотров: 63016
Описание:
Compares Quake (demo1) running on a 33 MHz 486DX and then again on a 133 MHz AMD Am5x86. Unlike Doom, Quake is a fully 3D game and is likewise optimized for the pipelined FPU of the Pentium. The 486 had a non-pipelined FPU with add and multiply latencies of ~12 and ~16 cycles, respectively. Despite its name, the 5x86 is essentially a quad-clocked 486 with a 16KB unified L1 cache. It thus has the same fundamental handicap as the 486. As you'll see in the video though, a high-clocked 486 is almost enough to make Quake playable.
Both CPUs are run on the same motherboard using the same settings. DRAM and cache read/write wait states are all set to 0, and cache burst timing is 2-1-1-1; no stability problems so far. The tested resolution is 320x200, the lowest resolution supported.
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