Intel · Core Ultra 9 · 2025 · FCBGA2114
The Intel Core Ultra 9 285HX is a mobile (laptop) processor with 24 cores (8 Performance-cores and 16 Efficiency-cores), released in 2025. It is part of the Core Ultra 9 lineup, using the Core Ultra Series 2 platform, and uses the FCBGA2114 package, which is soldered to the laptop's motherboard rather than socketed. Internally, it is built on the "Arrow Lake-HX" architecture. Only the 8 P-cores support Hyper-Threading, while the 16 E-cores handle a single thread each, together yielding 24 threads: the P-cores tackle latency-sensitive and lightly-threaded work, while the E-cores take on background and highly parallel tasks. The Core Ultra 9 285HX has a base clock of 2.8 GHz and can boost up to 5.5 GHz depending on workload and thermal headroom. Intel manufactures the "Arrow Lake-HX" silicon on a TSMC N3B process node. This processor supports DDR5/LPDDR5X memory. With a base TDP of 55W and a minimum assured power 45W, maximum turbo power 160W, which the laptop maker sets to suit its cooling design, the Core Ultra 9 285HX is a higher power envelope aimed at performance, gaming and workstation laptops. Integrated graphics are provided by the Graphics solution, so a discrete GPU is not required for display output. The cache hierarchy includes 36MB of L3 cache.
| Brand | Intel |
|---|---|
| Family | Core Ultra 9 |
| Series | Core Ultra Series 2 |
| Architecture | Arrow Lake-HX |
| Type | Mobile |
| Launch year | 2025 |
| Cores | 24 (8P + 16E) |
| Threads | 24 |
| Base clock | 2.8 GHz |
| Boost clock | 5.5 GHz |
| L3 cache | 36MB |
| Base TDP | 55W |
| Min assured – max turbo power | 45–160W |
| Package | FCBGA2114 |
| Process | TSMC N3B |
| Memory type | DDR5/LPDDR5X |
| Integrated graphics | Graphics |