Ultra 9 285K vs Xeon Platinum 9221
Primary details
Comparing Xeon Platinum 9221 and Core Ultra 9 285K processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | not rated | 53 |
| Place by popularity | not in top-100 | not in top-100 |
| Cost-effectiveness evaluation | no data | 74.35 |
| Market segment | Server | Desktop processor |
| Series | Intel Xeon Platinum | no data |
| Power efficiency | no data | 32.43 |
| Architecture codename | Cascade Lake-AP (2019) | Arrow Lake-S (2024−2025) |
| Release date | 2 April 2019 (5 years ago) | 24 October 2024 (less than a year ago) |
| Launch price (MSRP) | no data | $589 |
Cost-effectiveness evaluation
Performance per price, higher is better.
Detailed specifications
Xeon Platinum 9221 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 | 32 (Dotriaconta-Core) | 24 (Tetracosa-Core) |
| Threads | 64 | 24 |
| Base clock speed | 2.3 GHz | 3.7 GHz |
| Boost clock speed | 3.7 GHz | 5.7 GHz |
| Bus type | DMI 3.0 | no data |
| Bus rate | 4 × 8 GT/s | 250 MHz |
| Multiplier | 21 | no data |
| L1 cache | 64K (per core) | 112 KB (per core) |
| L2 cache | 1 MB (per core) | 3 MB (per core) |
| L3 cache | 71.5 MB (shared) | 36 MB (shared) |
| Chip lithography | 14 nm | 3 nm |
| Die size | no data | 243 mm2 |
| Number of transistors | 8,000 million | 17,800 million |
| 64 bit support | + | + |
| Windows 11 compatibility | + | no data |
| Unlocked multiplier | - | + |
Compatibility
Information on Xeon Platinum 9221 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 | 8 | 1 |
| Socket | Intel BGA5903 | 1851 |
| Power consumption (TDP) | 250 Watt | 125 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Xeon Platinum 9221 and Core Ultra 9 285K. You'll probably need this information if you require some particular technology.
| Instruction set extensions | Intel® AVX-512 | 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 | + | + |
Security technologies
Xeon Platinum 9221 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 Platinum 9221 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 Platinum 9221 and Core Ultra 9 285K. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR4-2933 | DDR5 Depends on motherboard |
| Maximum memory size | 2 TiB | no data |
| Max memory channels | 12 | no data |
| Maximum memory bandwidth | 281.6 GB/s | no data |
| ECC memory support | + | - |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | no data | Arc Xe-LPG Graphics 64EU |
Peripherals
Specifications and connection of peripherals supported by Xeon Platinum 9221 and Core Ultra 9 285K.
| PCIe version | 3.0 | 5.0 |
| PCI Express lanes | no data | 20 |
Pros & cons summary
| Recency | 2 April 2019 | 24 October 2024 |
| Physical cores | 32 | 24 |
| Threads | 64 | 24 |
| Chip lithography | 14 nm | 3 nm |
| Power consumption (TDP) | 250 Watt | 125 Watt |
Xeon Platinum 9221 has 33.3% more physical cores and 166.7% more threads.
Ultra 9 285K, on the other hand, has an age advantage of 5 years, a 366.7% more advanced lithography process, and 100% lower power consumption.
We couldn't decide between Xeon Platinum 9221 and Core Ultra 9 285K. We've got no test results to judge.
Be aware that Xeon Platinum 9221 is a server/workstation processor while Core Ultra 9 285K is a desktop one.
Should you still have questions on choice between Xeon Platinum 9221 and Core Ultra 9 285K, ask them in Comments section, and we shall answer.
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