Editing SuperCPU and Turbo Accelerators (section)

== The modern route to a fast 64 ==

If the object is speed rather than period hardware, the practical options today are FPGA boards rather than cartridges:

* '''[[Ultimate 64 Motherboard|Ultimate 64 and Ultimate 64 Elite-II]]''' — up to 48 MHz and 64 MHz respectively, with SuperCPU-compatible control registers.<ref name="u64" />
* '''Commodore 64 Ultimate''' — the board Commodore now sells, built on an AMD Xilinx '''Artix-7''' FPGA with 128 MB of DDR2 and 16 MB of flash. Pre-orders opened at '''US$299.99''' for the base machine, with a Starlight edition at $349 and a Founders edition at $499, and shipping was announced for October 2025. Ultimate64.com states that Commodore has taken over sales of their version of the Elite-II board.<ref name="c64u">Announcement coverage of the Commodore 64 Ultimate, e.g. Tom's Hardware, https://www.tomshardware.com/video-games/retro-gaming/the-commodore-64-ultimate-computer-is-the-companys-first-hardware-release-in-over-30-years-pre-orders-start-at-usd299 . Source for the Artix-7 FPGA, 128 MB DDR2, 16 MB flash, the three editions and their launch prices, and the announced October 2025 shipping date. Prices are launch figures, not current ones.</ref><ref name="u64shop">Ultimate Products B.V., https://ultimate64.com/ — front-page notice that the Ultimate 64 Elite-II black short boards are sold out and that Commodore has taken over the sales of their version of this board. Read September 2026.</ref>