Ultra 9 285 vs i9-12900KF
Primary details
Comparing Core i9-12900KF and Core Ultra 9 285 processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 188 | not rated |
| Place by popularity | not in top-100 | not in top-100 |
| Cost-effectiveness evaluation | 36.86 | no data |
| Market segment | Desktop processor | Desktop processor |
| Series | Intel Core i9 | no data |
| Power efficiency | 19.59 | no data |
| Architecture codename | Alder Lake, Golden Cove, Gracemont (2021) | Arrow Lake-S (2024−2025) |
| Release date | 4 November 2021 (3 years ago) | January 2025 |
| Launch price (MSRP) | $564 | no data |
Cost-effectiveness evaluation
Performance per price, higher is better.
Detailed specifications
Core i9-12900KF and Core Ultra 9 285 basic parameters such as number of cores, number of threads, base frequency and turbo boost clock, lithography, cache size and multiplier lock state. These parameters indirectly say of CPU speed, though for more precise assessment you have to consider their test results.
| Physical cores | 16 (Hexadeca-Core) | 24 (Tetracosa-Core) |
| Threads | 24 | 24 |
| Base clock speed | 3.2 GHz | 2.5 GHz |
| Boost clock speed | 5.2 GHz | 5.6 GHz |
| Bus type | DMI 4.0 | no data |
| Bus rate | 8 × 16 GT/s | no data |
| Multiplier | 32 | no data |
| L1 cache | 80K (per core) | 112 KB (per core) |
| L2 cache | 1.25 MB (per core) | 3 MB (per core) |
| L3 cache | 30 MB (shared) | 36 MB (shared) |
| Chip lithography | Intel 7 nm | 3 nm |
| Die size | 215.25 mm2 | 243 mm2 |
| Maximum core temperature | 100 °C | no data |
| Maximum case temperature (TCase) | 72 °C | no data |
| Number of transistors | no data | 17,800 million |
| 64 bit support | + | + |
| Windows 11 compatibility | + | no data |
| Unlocked multiplier | + | - |
Compatibility
Information on Core i9-12900KF and Core Ultra 9 285 compatibility with other computer components: motherboard (look for socket type), power supply unit (look for power consumption) etc. Useful when planning a future computer configuration or upgrading an existing one. Note that power consumption of some processors can well exceed their nominal TDP, even without overclocking. Some can even double their declared thermals given that the motherboard allows to tune the CPU power parameters.
| Number of CPUs in a configuration | 1 | 1 |
| Socket | FCLGA1700 | 1851 |
| Power consumption (TDP) | 125 Watt | 125 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Core i9-12900KF and Core Ultra 9 285. You'll probably need this information if you require some particular technology.
| Instruction set extensions | Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2 | no data |
| AES-NI | + | + |
| AVX | + | + |
| vPro | + | + |
| Enhanced SpeedStep (EIST) | + | + |
| Speed Shift | + | no data |
| Turbo Boost Technology | 2.0 | no data |
| Hyper-Threading Technology | + | no data |
| TSX | - | + |
| Idle States | + | no data |
| Thermal Monitoring | + | - |
| Turbo Boost Max 3.0 | + | no data |
| Deep Learning Boost | + | - |
Security technologies
Core i9-12900KF and Core Ultra 9 285 technologies aimed at improving security, for example, by protecting against hacks.
| TXT | no data | + |
| EDB | + | no data |
| Secure Key | + | no data |
| OS Guard | + | no data |
Virtualization technologies
Virtual machine speed-up technologies supported by Core i9-12900KF and Core Ultra 9 285 are enumerated here.
| VT-d | + | + |
| VT-x | + | + |
| EPT | + | no data |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Core i9-12900KF and Core Ultra 9 285. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR5-4800, DDR4-3200 | DDR5 Depends on motherboard |
| Maximum memory size | 128 GB | no data |
| Max memory channels | 2 | no data |
| Maximum memory bandwidth | 76.805 GB/s | no data |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | no data | Arc Xe2 Graphics 64EU |
Peripherals
Specifications and connection of peripherals supported by Core i9-12900KF and Core Ultra 9 285.
| PCIe version | 5.0 and 4.0 | 5.0 |
| PCI Express lanes | 20 | 20 |
Pros & cons summary
| Physical cores | 16 | 24 |
Ultra 9 285 has 50% more physical cores.
We couldn't decide between Core i9-12900KF and Core Ultra 9 285. We've got no test results to judge.
Should you still have questions on choice between Core i9-12900KF and Core Ultra 9 285, ask them in Comments section, and we shall answer.
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