Atari PC5 with Paradise RAMBIOS.SYS
Speed 20 MHz

ATPERF -- PC Tech Journal AT Hardware Performance Test
Version 2.00, Copyright (c) 1986, 1987, Ziff Communications Co.
Written by Ted Forgeron and Paul Pierce
IBM PC/AT model 339 (8 MHz) = 1.00 for relative measurements.
                                Byte         Word         Dword    Relative
Average instruction fetch:      0.15 uS      0.10 uS      0.16 uS      3.90
Average RAM read time:          0.11 uS      0.11 uS      0.12 uS      3.67
Average RAM write time:         0.21 uS      0.21 uS      0.21 uS      1.93
Average EMM read time:          0.11 uS      0.11 uS      0.11 uS      3.80
Average EMM write time:         0.21 uS      0.21 uS      0.21 uS      1.93
Average ROM read time:          0.52 uS      0.52 uS      0.52 uS      0.77
Average Video write time:       1.16 uS      1.16 uS      2.31 uS      2.09
80386 CPU clock rate:        20.0 MHz  Relative: 2.50
Refresh overhead:            3.4%

Memory          Access width          Wait states
RAM read            Dword                    0
RAM write           Dword                    2
EMM read            Dword                    0
EMM write           Dword                    2
ROM read            Dword                    8
Video write         Word                    21
