Comments on: Cyrix 486DLC CPU: Introduced June 1992 https://dfarq.homeip.net/cyrix-486dlc-cpu-introduced-june-1992/?utm_source=rss&utm_medium=rss&utm_campaign=cyrix-486dlc-cpu-introduced-june-1992 David L. Farquhar on technology old and new, computer security, and more Tue, 02 Jun 2026 11:07:07 +0000 hourly 1 By: neo https://dfarq.homeip.net/cyrix-486dlc-cpu-introduced-june-1992/#comment-57070 Mon, 09 Jun 2025 01:41:43 +0000 https://dfarq.homeip.net/?p=38407#comment-57070 Evergreen Kingston Make-it have 286 to 486 upgrade for Tandy 1000tx/tl that used the Cyrix 486 or IBM 486slc

you need a cache driver to activate the cache, but performance was compared to a 386sx-20mhz due to 8-bit XT bottleneck

I played Kings Quest back in the day and i wanted faster

]]> By: neo https://dfarq.homeip.net/cyrix-486dlc-cpu-introduced-june-1992/#comment-57067 Fri, 06 Jun 2025 20:11:34 +0000 https://dfarq.homeip.net/?p=38407#comment-57067 But without the burst transfers of the regular 486, TI’s 486 couldn’t keep pace with an Intel 486 when plugged into a 486 motherboard with a regular socket.

TI also added clock doubling, so you could run the chip on a 1X multiplier if you had a 33 or 40 MHz bus, or 2x multiplier if you had a 20 or 25 MHz bus to reach 40 or 50 MHz.

was TI’s 486 clock doubling reach 40 or 50 MHz. faster then Intel 486 20 or 25 MHz

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