Ultra 7 255HX vs Ultra 5 245
Primary details
Comparing Core Ultra 5 245 and Core Ultra 7 255HX processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | not rated | not rated |
| Place by popularity | not in top-100 | not in top-100 |
| Market segment | Desktop processor | Laptop |
| Architecture codename | Arrow Lake-S (2024−2025) | no data |
| Release date | 7 January 2025 (less than a year ago) | 1 January 2025 (less than a year ago) |
| Launch price (MSRP) | $270 | no data |
Detailed specifications
Core Ultra 5 245 and Core Ultra 7 255HX 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 | 14 (Tetradeca-Core) | 20 (Icosa-Core) |
| Performance-cores | 6 | 8 |
| Efficient-cores | 8 | 12 |
| Threads | 14 | 20 |
| Base clock speed | 3.5 GHz | no data |
| Boost clock speed | 5.1 GHz | 5.2 GHz |
| L1 cache | 112 KB (per core) | no data |
| L2 cache | 3 MB (per core) | no data |
| L3 cache | 24 MB (shared) | 30 MB |
| Chip lithography | 3 nm | no data |
| Die size | 243 mm2 | no data |
| Number of transistors | 17,800 million | no data |
| 64 bit support | + | + |
Compatibility
Information on Core Ultra 5 245 and Core Ultra 7 255HX 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 | no data |
| Socket | FCLGA1851 | FCBGA2114 |
| Power consumption (TDP) | 65 Watt | 55 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Core Ultra 5 245 and Core Ultra 7 255HX. You'll probably need this information if you require some particular technology.
| Instruction set extensions | Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2 | Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2 |
| AES-NI | + | + |
| AVX | + | - |
| vPro | + | no data |
| Enhanced SpeedStep (EIST) | + | + |
| Speed Shift | + | + |
| Turbo Boost Technology | 2.0 | 2.0 |
| Idle States | + | + |
| Thermal Monitoring | + | + |
| SIPP | + | - |
| Turbo Boost Max 3.0 | no data | + |
| Deep Learning Boost | + | + |
| Supported AI Software Frameworks | OpenVINO™, WindowsML, DirectML, ONNX RT, WebNN | OpenVINO™, WindowsML, DirectML, ONNX RT, WebNN |
Security technologies
Core Ultra 5 245 and Core Ultra 7 255HX technologies aimed at improving security, for example, by protecting against hacks.
| TXT | + | + |
| EDB | + | + |
| Secure Key | + | + |
| OS Guard | + | + |
Virtualization technologies
Virtual machine speed-up technologies supported by Core Ultra 5 245 and Core Ultra 7 255HX are enumerated here.
| VT-d | + | + |
| VT-x | + | + |
| EPT | + | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Core Ultra 5 245 and Core Ultra 7 255HX. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR5-6400 | DDR5-6400 |
| Maximum memory size | 192 GB | 192 GB |
| Max memory channels | 2 | 2 |
| ECC memory support | + | - |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | Intel® Graphics | Intel® Graphics |
| Quick Sync Video | + | + |
| Graphics max frequency | 1.9 GHz | 1.85 GHz |
Graphics interfaces
Available interfaces and connections of Core Ultra 5 245 and Core Ultra 7 255HX integrated GPUs.
| Number of displays supported | 4 | 4 |
Graphics image quality
Maximum display resolutions supported by Core Ultra 5 245 and Core Ultra 7 255HX integrated GPUs, including resolutions over different interfaces.
| Max resolution over HDMI 1.4 | 4K @ 60Hz (HDMI 2.1 TMDS) 8K @ 60Hz (HDMI2.1 FRL) | 4K @ 60Hz (HDMI 2.1 TMDS) 8K @ 60Hz (HDMI2.1 FRL) |
| Max resolution over eDP | 4K @ 60Hz | 3840x2400 @ 120Hz |
| Max resolution over DisplayPort | 8K @ 60Hz | 7680 x 4320 @ 60Hz |
Graphics API support
APIs supported by Core Ultra 5 245 and Core Ultra 7 255HX integrated GPUs, sometimes API versions are included.
| DirectX | 12 | 12 |
| OpenGL | 4.5 | 4.5 |
Peripherals
Specifications and connection of peripherals supported by Core Ultra 5 245 and Core Ultra 7 255HX.
| PCIe version | 5.0 and 4.0 | 5.0 and 4.0 |
| PCI Express lanes | 20 | 24 |
Pros & cons summary
| Physical cores | 14 | 20 |
| Threads | 14 | 20 |
| Power consumption (TDP) | 65 Watt | 55 Watt |
Ultra 7 255HX has 42.9% more physical cores and 42.9% more threads, and 18.2% lower power consumption.
We couldn't decide between Core Ultra 5 245 and Core Ultra 7 255HX. We've got no test results to judge.
Note that Core Ultra 5 245 is a desktop processor while Core Ultra 7 255HX is a notebook one.
Should you still have questions on choice between Core Ultra 5 245 and Core Ultra 7 255HX, ask them in Comments section, and we shall answer.
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