Ultra 5 225F vs i9-11900KB
Primary details
Comparing Core i9-11900KB and Core Ultra 5 225F processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 494 | not rated |
| Place by popularity | not in top-100 | not in top-100 |
| Cost-effectiveness evaluation | 17.86 | no data |
| Market segment | Desktop processor | Desktop processor |
| Power efficiency | 21.01 | no data |
| Architecture codename | Tiger Lake-H (2021) | Arrow Lake-S (2024−2025) |
| Release date | May 2021 (3 years ago) | January 2025 |
| Launch price (MSRP) | $539 | no data |
Cost-effectiveness evaluation
Performance per price, higher is better.
Detailed specifications
Core i9-11900KB and Core Ultra 5 225F 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 | 8 (Octa-Core) | 10 (Deca-Core) |
| Threads | 16 | 10 |
| Base clock speed | 3.3 GHz | 3.3 GHz |
| Boost clock speed | 4.9 GHz | 4.9 GHz |
| Bus rate | 8 GT/s | no data |
| L1 cache | 80K (per core) | 112 KB (per core) |
| L2 cache | 1.25 MB (per core) | 3 MB (per core) |
| L3 cache | 24 MB (shared) | 21 MB (shared) |
| Chip lithography | 10 nm SuperFin | 3 nm |
| Die size | 190 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 i9-11900KB and Core Ultra 5 225F 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 | FCBGA1787 | 1851 |
| Power consumption (TDP) | 65 Watt | 65 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Core i9-11900KB and Core Ultra 5 225F. 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 | + | + |
| Enhanced SpeedStep (EIST) | + | + |
| Speed Shift | + | no data |
| Hyper-Threading Technology | + | no data |
| TSX | - | + |
| Idle States | + | no data |
| Thermal Monitoring | + | - |
| Flex Memory Access | + | no data |
| Turbo Boost Max 3.0 | + | no data |
| Deep Learning Boost | + | - |
Security technologies
Core i9-11900KB and Core Ultra 5 225F technologies aimed at improving security, for example, by protecting against hacks.
| TXT | + | + |
| EDB | + | no data |
| Secure Key | + | no data |
| Identity Protection | + | - |
| SGX | Yes with Intel® ME | no data |
| OS Guard | + | no data |
Virtualization technologies
Virtual machine speed-up technologies supported by Core i9-11900KB and Core Ultra 5 225F are enumerated here.
| VT-d | + | + |
| VT-x | + | + |
| EPT | + | no data |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Core i9-11900KB and Core Ultra 5 225F. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR4 | DDR5 |
| Maximum memory size | 128 GB | no data |
| Max memory channels | 2 | no data |
| Maximum memory bandwidth | 51.2 GB/s | no data |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | Intel® UHD Graphics for 11th Gen Intel® Processors | N/A |
| Quick Sync Video | + | - |
| Graphics max frequency | 1.45 GHz | no data |
| Execution Units | 32 | no data |
Graphics interfaces
Available interfaces and connections of Core i9-11900KB and Core Ultra 5 225F integrated GPUs.
| Number of displays supported | 4 | no data |
Graphics image quality
Maximum display resolutions supported by Core i9-11900KB and Core Ultra 5 225F integrated GPUs, including resolutions over different interfaces.
| 4K resolution support | + | no data |
| Max resolution over HDMI 1.4 | 4096x2304@60Hz | no data |
| Max resolution over eDP | 4096 x 2304@60Hz | no data |
| Max resolution over DisplayPort | 7680x4320@60Hz | no data |
Graphics API support
APIs supported by Core i9-11900KB and Core Ultra 5 225F integrated GPUs, sometimes API versions are included.
| DirectX | 12 | no data |
| OpenGL | 4.6 | no data |
Peripherals
Specifications and connection of peripherals supported by Core i9-11900KB and Core Ultra 5 225F.
| PCIe version | 4.0 | 5.0 |
| PCI Express lanes | 20 | 20 |
Pros & cons summary
| Physical cores | 8 | 10 |
| Threads | 16 | 10 |
| Chip lithography | 10 nm | 3 nm |
i9-11900KB has 60% more threads.
Ultra 5 225F, on the other hand, has 25% more physical cores, and a 233.3% more advanced lithography process.
We couldn't decide between Core i9-11900KB and Core Ultra 5 225F. We've got no test results to judge.
Should you still have questions on choice between Core i9-11900KB and Core Ultra 5 225F, ask them in Comments section, and we shall answer.
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