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> the 7900/7900X are dual chiplet design This is a minor terminology mix-up. The term you want here is "CCX". Each CCX holds multiple chiplets. See https://ww
by neogodless 4y ago
> the 7900/7900X are dual chiplet design
This is a minor terminology mix-up. The term you want here is "CCX". Each CCX holds multiple chiplets.
See https://www.tomshardware.com/reviews/amd-ccx-definition-cpu-core-explained,6338.html https://www.tomshardware.com/reviews/amd-ccx-definition-cpu-... for more details.
EDIT: It does look like my own information on this was rusty.
A "chiplet" is not an individual core, but a trimmed down die that does not have a memory controller. A "CCX" contains cores (within a chiplet) and L3 cache.
https://www.hardwaretimes.com/amd-ccd-and-ccx-in-ryzen-processors-explained/ https://www.hardwaretimes.com/amd-ccd-and-ccx-in-ryzen-proce...
> The basic unit of a Ryzen processor is a CCX or Core Complex, a quad-core/octa-core CPU chiplet with a shared L3 cache.
- rektide 4y ago> For the Ryzen 3000-series processors, CCX refers to a four-core grouping inside of each core chiplet die (CCD). For example, an AMD CPU with 8 cores will have a CCD with two 4-core CCXs. From that link, your statement does not appear accurate. Multiple CCX's appear on a given Core Chiplet Die. There are indeed two vs one core chiplets on different Ryzen designs (plus the IOD).