Ultra 7 255HX vs Ultra 5 235U
Primary details
Comparing Core Ultra 5 235U and Core Ultra 7 255HX processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 770 | not rated |
| Place by popularity | not in top-100 | not in top-100 |
| Market segment | Laptop | Laptop |
| Power efficiency | 17.24 | no data |
| Release date | 1 January 2025 (less than a year ago) | 1 January 2025 (less than a year ago) |
Detailed specifications
Core Ultra 5 235U 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 | 12 (Dodeca-Core) | 20 (Icosa-Core) |
| Performance-cores | 2 | 8 |
| Efficient-cores | 8 | 12 |
| Low Power Efficient-cores | 2 | no data |
| Threads | 14 | 20 |
| Boost clock speed | 4.9 GHz | 5.2 GHz |
| L3 cache | 12 MB | 30 MB |
| Chip lithography | Intel 3 nm | no data |
| 64 bit support | + | + |
Compatibility
Information on Core Ultra 5 235U 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 | FCBGA2049 | FCBGA2114 |
| Power consumption (TDP) | 57 Watt | 55 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Core Ultra 5 235U 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 | + | + |
| Enhanced SpeedStep (EIST) | no data | + |
| Speed Shift | + | + |
| Turbo Boost Technology | no data | 2.0 |
| Hyper-Threading Technology | + | no data |
| Idle States | no data | + |
| Thermal Monitoring | + | + |
| SIPP | + | - |
| Turbo Boost Max 3.0 | - | + |
| Deep Learning Boost | + | + |
| Supported AI Software Frameworks | OpenVINO™, WindowsML, ONNX RT | OpenVINO™, WindowsML, DirectML, ONNX RT, WebNN |
Security technologies
Core Ultra 5 235U 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 235U 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 235U 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 | 128 GB | 192 GB |
| Max memory channels | 2 | 2 |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | Intel® Graphics | Intel® Graphics |
| Quick Sync Video | + | + |
| Graphics max frequency | 2.05 GHz | 1.85 GHz |
Graphics interfaces
Available interfaces and connections of Core Ultra 5 235U and Core Ultra 7 255HX integrated GPUs.
| Number of displays supported | 4 | 4 |
Graphics image quality
Maximum display resolutions supported by Core Ultra 5 235U and Core Ultra 7 255HX integrated GPUs, including resolutions over different interfaces.
| Max resolution over HDMI 1.4 | 4096 x 2304 @ 60Hz (HDMI 2.1 TMDS) 7680 x 4320 @ 60Hz (HDMI2.1 FRL) | 4K @ 60Hz (HDMI 2.1 TMDS) 8K @ 60Hz (HDMI2.1 FRL) |
| Max resolution over eDP | 3840x2400 @ 120Hz | 3840x2400 @ 120Hz |
| Max resolution over DisplayPort | 7680 x 4320 @ 60Hz | 7680 x 4320 @ 60Hz |
Graphics API support
APIs supported by Core Ultra 5 235U and Core Ultra 7 255HX integrated GPUs, sometimes API versions are included.
| DirectX | 12.2 | 12 |
| OpenGL | 4.6 | 4.5 |
Peripherals
Specifications and connection of peripherals supported by Core Ultra 5 235U and Core Ultra 7 255HX.
| PCIe version | no data | 5.0 and 4.0 |
| PCI Express lanes | 20 | 24 |
| PCI support | 4.0 | no data |
Pros & cons summary
| Physical cores | 12 | 20 |
| Threads | 14 | 20 |
| Power consumption (TDP) | 57 Watt | 55 Watt |
Ultra 7 255HX has 66.7% more physical cores and 42.9% more threads, and 3.6% lower power consumption.
We couldn't decide between Core Ultra 5 235U and Core Ultra 7 255HX. We've got no test results to judge.
Should you still have questions on choice between Core Ultra 5 235U and Core Ultra 7 255HX, ask them in Comments section, and we shall answer.
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