Editing Processor Direct Slot (section)

=== PowerPC cache slot ===
Mid-range [[Power Macintosh]] systems based on [[PowerPC 603e]] processors with [[Peripheral Component Interconnect|PCI]] architecture, such as the [[Power Macintosh 5400|5400]], [[Power Macintosh 5500|5500]], and [[Power Macintosh 6360|6360]] through [[Power Macintosh 6500|6500]], featured an L2 [[Cache (computing)|cache]] slot which provided direct access to the CPU. This allowed enterprising third-party manufacturers to build [[PowerPC G3]] upgrades for this slot.

More recent Macs have such high processor speeds that a PDS would not be practical and instead adopted [[PCIe]] and [[Thunderbolt (interface)]].<ref name="appleinsider-onecable">{{Cite web |title=One cable to rule them all: a look at Apple's retired connectors through the years |url=https://appleinsider.com/articles/18/07/04/a-brief-history-of-apples-retired-connectors-and-ports-over-the-years |access-date=2022-09-03 |website=AppleInsider |language=en |archive-date=2022-09-03 |archive-url=https://web.archive.org/web/20220903212758/https://appleinsider.com/articles/18/07/04/a-brief-history-of-apples-retired-connectors-and-ports-over-the-years |url-status=live }}</ref> The last implementation resembling such a slot by Apple is the processor tray connector in the 2009 to 2012 [[Mac Pro]]s. More recent models have had [[Intel]] Xeon processors socketed directly to the logic board.