Ultra 5 125U vs i9-9800X
Primary details
Comparing Core i9-9800X and Core Ultra 5 125U processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | not rated | 716 |
| Place by popularity | not in top-100 | not in top-100 |
| Market segment | Desktop processor | Laptop |
| Series | no data | Intel Meteor Lake-U |
| Power efficiency | no data | 69.17 |
| Architecture codename | Skylake-X (2018) | Meteor Lake-P (2023) |
| Release date | October 2018 (6 years ago) | 14 December 2023 (1 year ago) |
| Launch price (MSRP) | no data | $363 |
Detailed specifications
Core i9-9800X and Core Ultra 5 125U 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) | 12 (Dodeca-Core) |
| Threads | 16 | 14 |
| Base clock speed | no data | 1.3 GHz |
| Boost clock speed | 3.8 GHz | 4.3 GHz |
| L1 cache | 64K (per core) | 112 KB (per core) |
| L2 cache | 1 MB (per core) | 2 MB (per core) |
| L3 cache | 16.5 MB (shared) | 12 MB (shared) |
| Chip lithography | 14 nm | Intel 4 nm |
| Maximum core temperature | no data | 110 °C |
| Maximum case temperature (TCase) | 72 °C | no data |
| 64 bit support | + | + |
| Windows 11 compatibility | - | no data |
| Unlocked multiplier | + | - |
Compatibility
Information on Core i9-9800X and Core Ultra 5 125U 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 | 2066 | FCBGA2049 |
| Power consumption (TDP) | 165 Watt | 15 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Core i9-9800X and Core Ultra 5 125U. You'll probably need this information if you require some particular technology.
| Instruction set extensions | no data | Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2 |
| AES-NI | + | + |
| AVX | + | + |
| vPro | no data | + |
| Enhanced SpeedStep (EIST) | + | + |
| Speed Shift | no data | + |
| Hyper-Threading Technology | no data | + |
| TSX | + | + |
| Thermal Monitoring | - | + |
| Flex Memory Access | no data | + |
| Turbo Boost Max 3.0 | no data | - |
| Deep Learning Boost | - | + |
| Supported AI Software Frameworks | - | OpenVINO™, WindowsML, ONNX RT |
Security technologies
Core i9-9800X and Core Ultra 5 125U technologies aimed at improving security, for example, by protecting against hacks.
| TXT | + | + |
| EDB | no data | + |
| Secure Key | no data | + |
| OS Guard | no data | + |
Virtualization technologies
Virtual machine speed-up technologies supported by Core i9-9800X and Core Ultra 5 125U are enumerated here.
| VT-d | + | + |
| VT-x | + | + |
| EPT | no data | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Core i9-9800X and Core Ultra 5 125U. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR4 | DDR5 |
| Maximum memory size | no data | 96 GB |
| Max memory channels | no data | 2 |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | no data | Intel® Graphics |
| Quick Sync Video | - | + |
| Graphics max frequency | no data | 1.85 GHz |
Graphics interfaces
Available interfaces and connections of Core i9-9800X and Core Ultra 5 125U integrated GPUs.
| Number of displays supported | no data | 4 |
Graphics image quality
Maximum display resolutions supported by Core i9-9800X and Core Ultra 5 125U integrated GPUs, including resolutions over different interfaces.
| Max resolution over HDMI 1.4 | no data | 4096 x 2304 @ 60Hz (HDMI 2.1 TMDS) 7680 x 4320 @ 60Hz (HDMI2.1 FRL) |
| Max resolution over eDP | no data | 3840x2400 @ 120Hz |
| Max resolution over DisplayPort | no data | 7680 x 4320 @ 60Hz |
Graphics API support
APIs supported by Core i9-9800X and Core Ultra 5 125U integrated GPUs, sometimes API versions are included.
| DirectX | no data | 12.2 |
| OpenGL | no data | 4.6 |
Peripherals
Specifications and connection of peripherals supported by Core i9-9800X and Core Ultra 5 125U.
| PCIe version | no data | 4.0 |
| PCI Express lanes | no data | 12 |
| PCI support | no data | 4.0 |
Pros & cons summary
| Physical cores | 8 | 12 |
| Threads | 16 | 14 |
| Power consumption (TDP) | 165 Watt | 15 Watt |
i9-9800X has 14.3% more threads.
Ultra 5 125U, on the other hand, has 50% more physical cores, and 1000% lower power consumption.
We couldn't decide between Core i9-9800X and Core Ultra 5 125U. We've got no test results to judge.
Note that Core i9-9800X is a desktop processor while Core Ultra 5 125U is a notebook one.
Should you still have questions on choice between Core i9-9800X and Core Ultra 5 125U, 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.
