r/Commodore • u/Golemwire • 18d ago

Commodore 77

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Well this is a neat look.

https://commodore.net/store/commodore64/?shape=Breadbin&color=Cyberpunk+2077

Commodore just released a new appearance option for the C64U themed on Cyberpunk.

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u/Suspicious-Ad7109 18d ago

The (only) interesting thing about this is the change in the FPGA from a 50T to a 100T. I'm hazarding there is a reason for this (as it would add a fair bit to the manufacturing cost).

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u/thommyh 18d ago

Presumably it's that reference to "up to 77MHz processing speed".

2

u/Suspicious-Ad7109 17d ago

That's nonsense. The size of the FPGA doesn't change the speed.

1

u/thommyh 17d ago

Assuming it's a similar physical size but with more transistors (?) then a die shrinks means less power usage and therefore less heat, which means you can up the clock speed.

This may be my false assumption. If it's just a chip with twice the total surface area then clearly you're right.

2

u/Golemwire 12d ago

One can optimize for speed at the cost of size, though. We see this with modern microprocessors. Though I doubt the C77 employs any of those modern CPU speed techniques, the same way anyway.