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PC-9801BXのオーバークロック実験結果表
※原発クロックは修正の可能性。
標準(無改造、i486SX、20MHz)状態
A:\>pfm486
Performance of 486-PC Ver1.77h(C)1992-1995 DysanKeihin
H----------------------------------------------------H
| i486SX Frequency = 19.69 MHz Machine:98 v1.77h|
| Ecache Read Time = 134 ns/dword ( 1.4wait, 30mb/s)|
| Ecache Write Time = 160 ns/dword ( 1.1wait, 25mb/s)|
| Memory Read Time = 135 ns/dword ( 1.4wait, 30mb/s)|
| Memory Write Time = 160 ns/dword ( 1.1wait, 25mb/s)|
H----------------------------------------------------H
ダウンクロック(i486DX、14MHz)状態
A:\>pfm486
Performance of 486-PC Ver1.77h(C)1992-1995 DysanKeihin
H----------------------------------------------------H
| i486DX Frequency = 14.34 MHz Machine:98 v1.77h|
| Ecache Read Time = 193 ns/dword ( 1.5wait, 21mb/s)|
| Ecache Write Time = 229 ns/dword ( 1.3wait, 17mb/s)|
| Memory Read Time = 193 ns/dword ( 1.5wait, 21mb/s)|
| Memory Write Time = 229 ns/dword ( 1.3wait, 17mb/s)|
H----------------------------------------------------H
アップクロック(i486DX、24MHz)状態
A:\>pfm486
Performance of 486-PC Ver1.77h(C)1992-1995 DysanKeihin
H----------------------------------------------------H
| i486DX Frequency = 24.04 MHz Machine:98 v1.77h|
| Ecache Read Time = 112 ns/dword ( 1.4wait, 36mb/s)|
| Ecache Write Time = 134 ns/dword ( 1.2wait, 30mb/s)|
| Memory Read Time = 113 ns/dword ( 1.5wait, 35mb/s)|
| Memory Write Time = 134 ns/dword ( 1.2wait, 30mb/s)|
H----------------------------------------------------H
オーバークロック(i486DX、33MHz)状態
A:\>pfm486
Performance of 486-PC Ver1.77h(C)1992-1995 DysanKeihin
H----------------------------------------------------H
| i486SX Frequency = 32.00 MHz Machine:98 v1.77h|
| Ecache Read Time = 84 ns/dword ( 1.4wait, 48mb/s)|
| Ecache Write Time = 100 ns/dword ( 1.2wait, 40mb/s)|
| Memory Read Time = 84 ns/dword ( 1.4wait, 48mb/s)|
| Memory Write Time = 100 ns/dword ( 1.2wait, 40mb/s)|
H----------------------------------------------------H
オーバークロック(i486DX2、66MHz)状態
A:\>pfm486
Performance of 486-PC Ver1.77h(C)1992-1995 DysanKeihin
H----------------------------------------------------H
| i486DX Frequency = 63.98 MHz Machine:98 v1.77h|
| Ecache Read Time = 84 ns/dword ( 4.1wait, 48mb/s)|
| Ecache Write Time = 100 ns/dword ( 4.4wait, 40mb/s)|
| Memory Read Time = 84 ns/dword ( 4.1wait, 48mb/s)|
| Memory Write Time = 100 ns/dword ( 4.4wait, 40mb/s)|
H----------------------------------------------------H