Some of the first images of a de-lidded Intel Core Ultra 9 285K "Arrow Lake-S" processor surfaced on the web, confirming a disaggregated chiplet-based processor design. Intel pivoted to chiplet based processors with its Core Ultra "Meteor Lake," allowing it to build specific IP blocks of the processor on different foundry nodes, ensuring the ones that don't need the most advanced nodes can make do with slightly older ones, thereby maximizing Intel's yields for that advanced node. The die shot reveals a similar level of disaggregation to "Meteor Lake" than that of the more recent Core Ultra 200V "Lunar Lake" mobile processor.
With "Lunar Lake," Intel had re-aggregated a few things. "Lunar Lake" only has two tiles—SoC tile and I/O tile. The 3 nm SoC tile contains the CPU complex, a large iGPU, and a large 40 TOPS-class NPU, all sharing die-space with the memory controllers, and PCIe root complex. The smaller 6 nm I/O tile contains the PHYs of the various I/O interfaces. The "Arrow Lake" chip appears to have a similar degree of disaggregation as "Meteor Lake." We can spot at least five tiles sitting on top of the Foveros base tile. The picture has no annotation for the various tiles, but recent reports by Moore's Law is Dead and Jay Kihn shed some light on what these could be.