Intel's recently revealed Core Ultra Series 3 Panther Lake-H die shot has now been annotated in greater detail, offering a much clearer look at how the company is structuring its next-generation mobile silicon.
At the centre of the design is the compute tile, the largest functional block, which is fabricated on Intel 18A, measures 14.32 mm by 8.04 mm for a total area of around 115 square millimetres. This tile houses the processor's full 16-core CPU configuration, made up of six Cougar Cove performance cores, eight Darkmont efficiency cores, and four additional low-power E-cores.
The compute tile also integrates more than just CPU execution resources. Intel has placed the primary memory controller there alongside an 8 MB memory-side cache, with support for dual-channel DDR5 and LPDDR5X memory up to 9600 MT/s. The tile also carries Intel's NPU 5, which includes three neural compute engines and a combined 4.5 MB of local scratchpad memory.
Graphics are split off into a dedicated tile based on the Xe3 Celestial architecture. Mainstream Panther Lake-H parts use a smaller 4 Xe-core graphics tile built on Intel 3, while the larger 12 Xe-core version intended for Panther Lake-U systems is built on TSMC N3E. This approach allows Intel to optimise manufacturing costs and performance characteristics for different market segments without redesigning the graphics architecture itself.
The I/O tile integrates the PCIe root complex, Thunderbolt 5 or USB4 V2 host router, four PCIe 5.0 lanes, eight PCIe 4.0 lanes, two Thunderbolt 5 ports, and integrated Wi-Fi 7 with Bluetooth 5.4.
The design continues Intel's disaggregated processor strategy, but Panther Lake-H appears to lean more heavily on the kind of tile partitioning previously seen with Lunar Lake. The result is a package that separates CPU, graphics, and I/O functions into dedicated silicon blocks while using a base tile and filler structures to complete the physical assembly.
Rather than introducing a fundamentally new CPU or GPU architecture, Panther Lake focuses on higher core counts, better graphics configurations, and increased power budgets enabled by a newer manufacturing node and modular tile-based design. Panther Lake has been widely praised for its power-efficiency and integrated graphics performance, having been noted as a "return to form" for Intel.
Intel has started volume production of its Core Ultra 3-series 'Panther Lake' processors, with the company designing the CPU to demonstrate Intel's ability to develop a competitive processor and produce it internally using its leading-edge manufacturing technology. The significance of these die shots lies not merely in visual detail but in what they reveal about Intel's strategic bet: a shift towards American-made semiconductor manufacturing that depends on the successful execution of advanced process technology, tighter system integration, and modular design principles that allow for product flexibility without excessive re-engineering.