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--- blog:486_advantech_pca6145 [2024/05/10 17:13] – [Table] john
+++ blog:486_advantech_pca6145 [2024/05/10 17:25] (current) – [Results] john
@@ Line 553: / Line 553: @@
 ^ PC Player       ^ Low Res                  | 14.3 fps         | 13.4 fps         | 13.4 fps                  | 15.8 fps         | 15.9 fps                  |
 ^ PC Player       ^ High Res                 | 6.4 fps          | 5.3 fps          | 5.4 fps                   | 6.1 fps          | 6.3 fps                   |
    * Doom FPS is calculated as: (35*2134) / //realticks//
+It appears that the Cyrix chip running in 40MHz bus mode is a really strong performer; outclassing the Am5x86 despite the higher clock speed of the AMD processor. Even at 100MHz (3x 33MHz), the lower clocked Cyrix processor is within 10% of the performance of the AMD.
+The performance differential isn't too surprising considering the AMD is effectively a clock-quadrupled 486DX, whereas the Cyrix design is a cut-down and backported core from the much-maligned (but actually very impressive, if you discount the FPU) Cyrix 6x86, so it's much closer to a Pentium class processor than the AMD.