Ultra 9 285K vs Xeon Phi 3120P
Primary details
Comparing Xeon Phi 3120P and Core Ultra 9 285K processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | not rated | 54 |
| Place by popularity | not in top-100 | not in top-100 |
| Cost-effectiveness evaluation | no data | 68.51 |
| Market segment | Server | Desktop processor |
| Power efficiency | no data | 31.91 |
| Architecture codename | Knights Corner (2012−2014) | Arrow Lake-S (2024−2025) |
| Release date | 17 June 2013 (11 years ago) | 24 October 2024 (recently) |
| Launch price (MSRP) | no data | $589 |
Cost-effectiveness evaluation
Performance per price, higher is better.
Detailed specifications
Xeon Phi 3120P and Core Ultra 9 285K 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 | 57 (Heptapentaconta-Core) | 24 (Tetracosa-Core) |
| Threads | 228 | 24 |
| Base clock speed | no data | 3.7 GHz |
| Boost clock speed | 1.1 GHz | 5.7 GHz |
| Bus rate | no data | 250 MHz |
| L1 cache | 32 KB (per core) | 112 KB (per core) |
| L2 cache | 512 KB (per core) | 3 MB (per core) |
| L3 cache | 0 KB (shared) | 36 MB (shared) |
| Chip lithography | 22 nm | 3 nm |
| Die size | 350 mm2 | 243 mm2 |
| Number of transistors | 5,000 million | 17,800 million |
| 64 bit support | + | + |
| Windows 11 compatibility | - | no data |
| Unlocked multiplier | - | + |
Compatibility
Information on Xeon Phi 3120P and Core Ultra 9 285K 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 | PCIe x16 | 1851 |
| Power consumption (TDP) | 300 Watt | 125 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Xeon Phi 3120P and Core Ultra 9 285K. You'll probably need this information if you require some particular technology.
| AES-NI | + | + |
| AVX | + | + |
| vPro | + | + |
| Enhanced SpeedStep (EIST) | + | + |
| TSX | - | + |
Security technologies
Xeon Phi 3120P and Core Ultra 9 285K technologies aimed at improving security, for example, by protecting against hacks.
| TXT | + | + |
Virtualization technologies
Virtual machine speed-up technologies supported by Xeon Phi 3120P and Core Ultra 9 285K are enumerated here.
| VT-d | + | + |
| VT-x | + | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Xeon Phi 3120P and Core Ultra 9 285K. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR3, DDR4 | DDR5 Depends on motherboard |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | no data | Arc Xe-2 Graphics 64EU |
Peripherals
Specifications and connection of peripherals supported by Xeon Phi 3120P and Core Ultra 9 285K.
| PCIe version | no data | 5.0 |
| PCI Express lanes | no data | 20 |
Pros & cons summary
| Recency | 17 June 2013 | 24 October 2024 |
| Physical cores | 57 | 24 |
| Threads | 228 | 24 |
| Chip lithography | 22 nm | 3 nm |
| Power consumption (TDP) | 300 Watt | 125 Watt |
Xeon Phi 3120P has 137.5% more physical cores and 850% more threads.
Ultra 9 285K, on the other hand, has an age advantage of 11 years, a 633.3% more advanced lithography process, and 140% lower power consumption.
We couldn't decide between Xeon Phi 3120P and Core Ultra 9 285K. We've got no test results to judge.
Be aware that Xeon Phi 3120P is a server/workstation processor while Core Ultra 9 285K is a desktop one.
Should you still have questions on choice between Xeon Phi 3120P and Core Ultra 9 285K, ask them in Comments section, and we shall answer.
Similar processor comparisons
We picked several similar comparisons of processors in the same market segment and performance relatively close to those reviewed on this page.
