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Intel 12th-Gen Alder Lake CPU at a Glance

Intel's 12th-Gen Alder Lake At a Glance Six models: $589 Core i9-12900K, $409 i7-12700K, $289 i5-12600K. All three are also available as graphics-less KF models. LGA1700 socket requires new motherboards The Alder Lake SoC will span from desktop PCs to ultramobile devices with TDP ratings from 9W to 125W, all built on the Intel 7 process. The desktop PC comes with up to eight Performance (P) cores and eight Efficient (E) cores for a total of 16 cores and 24 threads and up to 30 MB of L3 cache for a single chip. Alder Lake supports either DDR4 or DDR5 (LP4x/LP5, too). Desktop PC supports x16 PCIe Gen 5 and x4 PCIe Gen 4, while mobile supports x12 PCIe Gen 4 and x16 PCIe Gen 3, Thunderbolt 4, and Wi-Fi 6E. Intel's new hyper-threaded Performance (P) core, which comes with the Golden Cove microarchitecture designed for low-latency single-threaded performance, comes with an average of 19% more IPC than the Cypress Cove architecture in Rocket Lake. It also supports AVX-512 and AMX (a new AI-focused matrix-multiply ISA) for data center variants (both are disabled on consumer chips). Intel's new single-threaded Efficiency (E) core comes with the Gracemont microarchitecture to improve multi-threaded performance and provide exceptional area efficiency (small footprint) and performance-per-watt. Four small cores fit in the same area as a Skylake core and deliver 80% more performance in threaded work (at the same power). A single E core also delivers 40% more performance than a single-threaded Skylake core (at the same power) in single-threaded work (caveats apply to both). Intel's Thread Director is a hardware-based technology that assures threads are assigned to either the P or E cores in an optimized manner. This is the sleeper tech that enables the hybrid architecture. Alder Lake does not support AVX-512 under any condition (fused off in P cores, not supported in E cores) to ensure an even ISA application. Four variants: -S for desktop PCs, -P for mobile, -M for low-power devices, -L Atom replacement, -N educational