Homebrew CPU wisdom dictates that discrete transistor computers must be much slower than TTL computers. "Due to capacitances and noise levels", as people usually put it. The MT15, Megaprocessor and Monster6502 are then given as examples. After all, each of those max out well below 1 MHz.
However, back in 1964 the CDC 6600 ran its resistor-transistor logic gates (RTL) at 10 MHz. How come?
Here's a really nice blog post about how that works, and why it is so hard to do the same today: https://cpldcpu.wordpress.com/2020/02/1 ... 6600-fast/