4 x 386 Floating Point Units / Math Co-Processors overclocked and benchmarked! @atheatos
4 x 386 Floating Point Units / Math Co-Processors overclocked and benchmarked!  @atheatos
Uploaded April 2021 | Updated September 2026, 1 week ago
This video is all about 386 FPUs / Math Co-Processors.
I used again my M326 v5.2 M/B that intergrates an AM386DX CPU.
Fully optimized and tuned with 0WS memory up to 50MHz+.

In the Video:
1) I compare 4 different models. The latest ones from the major players: Intel (A80387DX-33), IIT (4C87DLC-40), ULSI (US83C87-C), and Cyrix (CX-83D87-40-GP).
2) Overclocking and Benchmarking with a very competitive Quake run result.

Benchmark results:
drive.google.com/file/d/129HB4GGYU07h7WOWuDHJr_p0qeyD4e3o/view

FPU Benchmarks:
In the end... I messed up the Quake measurements (only 0.1 FPS accuracy).
It is possible to divide the Frames by the Seconds and get an accurate FPS score.
drive.google.com/file/d/1usS-DzJJqMTP1oMKkA4ySYYrG73vq33n/view

Site with detailed information on FPUs:
dougx.net/gaming/coproc.html

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Atheatos |

4 x 386 Floating Point Units / Math Co-Processors overclocked and benchmarked!

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