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Last Updated by feos on 5/29/2022 8:13 AM
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Based on
* https://pineight.com/mw/index.php?title=Dot_clock_rates
* https://pineight.com/mw/page/50_Hz_dot_clock_rates.xhtml

|| Frequency || Exact frequency || PAR || Exact PAR || Devices ||
|  1.02 MHz |    315/308 MHz | 1.500     |             3:2 | Apple II (GR; each line repeated four times)
|  3.58 MHz |     315/88 MHz | 1.714     |            12:7 | Devices with 1 pixel per NTSC subcarrier period: %%% Atari 2600 %%% Atari 7800 %%% Intellivision
|  5.37 MHz |    945/176 MHz | 1.143     |             8:7 | The 256px display of the [https://en.wikipedia.org/wiki/Texas_Instruments_TMS9918|TMS9918] %%% TI-99/4A %%% ColecoVision %%% MSX %%% SG-1000 %%% MSX2 %%% Master System %%% Genesis %%% Game Gear %%% NES %%% TurboGrafx-16 %%% Super NES %%% 256px mode of the original PlayStation
|  6.09 MHz |   1071/176 MHz | 1.008     |         120:119 | Nintendo 64 (320px)
|| 6.14 MHz ||    135/22 MHz ||1.000     ||            1:1 || Rec. 601 defines the NTSC picture such that this is square on 4:3 monitors
|  6.71 MHz |   4725/704 MHz | 0.914     |           32:35 | 320px mode of: %%% Sega Genesis %%% PlayStation
|  7.16 MHz |     315/44 MHz | 0.857     |             6:7 | Apple II (40-column text, HGR 280px) %%% TG16 (mid-res, up to 352px) %%% Atari 7800 (hi-res, 320px) %%% Amiga %%% IBM CGA (40-column or 320px) and EGA in 200-line mode (40-column or 320px) %%% Atari 800
|| 7.375 MHz||     59/8 MHz || 1.000    ||            1:1 || Rec. 601 defines the PAL picture such that this is square on 4:3 monitors
|  7.67 MHz |   4725/616 MHz | 0.800     |             4:5 | PlayStation (384px)
|  8.19 MHz |     630/77 MHz | 0.750     |             3:4 | Commodore 64 %%% Apple IIGS 4bpp super hi-res %%% (both 320px). Square on widescreen monitors.
| 10.74 MHz |     945/88 MHz | 0.571     |             4:7 | Twice the TMS9918 pixel rate produces 512px on %%% Super NES %%% TG16 %%% PlayStation
| 13.42 MHz |   4725/352 MHz | 0.457     |           16:35 | PlayStation (640px)
||13.5 MHz  ||      27/2 MHz ||0.909     ||          10:11 ||Rec. 601 NTSC
||13.5 MHz  ||      27/2 MHz ||1.093     ||          59:54 ||Rec. 601 PAL
| 14.32 MHz |     315/22 MHz | 0.429     |             3:7 | Apple II (80-column text, double hi-res) %%% Amiga %%% IBM CGA (80-column)
| 16.36 MHz |    1260/77 MHz | 0.375     |             3:8 | Apple IIGS 2bpp super hi-res (640px)