Ultra 9 275HX vs Processor U300
Aggregate performance score
Core Ultra 9 275HX outperforms Processor U300 by a whopping 534% based on our aggregate benchmark results.
Contents
Primary details
Comparing processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 1236 | 115 |
| Place by popularity | not in top-100 | not in top-100 |
| Market segment | Laptop | Laptop |
| Series | Intel Raptor Lake-U | no data |
| Power efficiency | 35.95 | 62.26 |
| Designer | Intel | Intel |
| Manufacturer | Intel | no data |
| Architecture codename | Raptor Lake-U (2023) | Arrow Lake-HX (2025) |
| Release date | 4 January 2023 (2 years ago) | 1 January 2025 (less than a year ago) |
| Launch price (MSRP) | $193 | no data |
Detailed specifications
Processor U300 and Core Ultra 9 275HX 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 | 5 (Penta-Core) | 24 (Tetracosa-Core) |
| Performance-cores | no data | 8 |
| Efficient-cores | no data | 16 |
| Threads | 6 | 24 |
| Base clock speed | 1.2 GHz | 2.1 GHz |
| Boost clock speed | 4.4 GHz | 5.4 GHz |
| Bus rate | 55 MHz | no data |
| L1 cache | 80K (per core) | no data |
| L2 cache | 1.25 MB (per core) | 40 MB |
| L3 cache | 8 MB (shared) | 36 MB |
| Chip lithography | 10 nm | 3 nm |
| Maximum core temperature | 100 °C | no data |
| 64 bit support | + | + |
| Windows 11 compatibility | + | no data |
Compatibility
Information on Processor U300 and Core Ultra 9 275HX 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 | Intel BGA 1744 | FCBGA2114 |
| Power consumption (TDP) | 15 Watt | 55 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Processor U300 and Core Ultra 9 275HX. 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 | + | - |
| Enhanced SpeedStep (EIST) | + | + |
| Speed Shift | no data | + |
| Turbo Boost Technology | no data | 2.0 |
| TSX | + | - |
| Idle States | no data | + |
| Thermal Monitoring | - | + |
| Turbo Boost Max 3.0 | no data | + |
| Deep Learning Boost | - | + |
| Supported AI Software Frameworks | - | OpenVINO™, WindowsML, DirectML, ONNX RT, WebNN |
Security technologies
Processor U300 and Core Ultra 9 275HX 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 Processor U300 and Core Ultra 9 275HX are enumerated here.
| VT-d | + | + |
| VT-x | + | + |
| EPT | no data | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Processor U300 and Core Ultra 9 275HX. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR4, DDR5 Dual-channel | DDR5-6400 |
| Maximum memory size | no data | 192 GB |
| Max memory channels | no data | 2 |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | Intel UHD Graphics Xe G4 48EUs ( - 1100 MHz) | Intel® Graphics |
| Quick Sync Video | - | + |
| Graphics max frequency | no data | 1.9 GHz |
Graphics interfaces
Available interfaces and connections of Processor U300 and Core Ultra 9 275HX integrated GPUs.
| Number of displays supported | no data | 4 |
Graphics image quality
Maximum display resolutions supported by Processor U300 and Core Ultra 9 275HX integrated GPUs, including resolutions over different interfaces.
| Max resolution over HDMI 1.4 | no data | 4K @ 60Hz (HDMI 2.1 TMDS) 8K @ 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 Processor U300 and Core Ultra 9 275HX integrated GPUs, sometimes API versions are included.
| DirectX | no data | 12 |
| OpenGL | no data | 4.5 |
Peripherals
Specifications and connection of peripherals supported by Processor U300 and Core Ultra 9 275HX.
| PCIe version | 4.0 | 5.0 and 4.0 |
| PCI Express lanes | 8 | 24 |
Synthetic benchmark performance
Various benchmark results of the processors in comparison. Overall score is measured in points in 0-100 range, higher is better.
Combined synthetic benchmark score
This is our combined benchmark performance rating.
Geekbench 5.5 Multi-Core
7-Zip Single
7-Zip
WebXPRT 4 Overall
Blender v3.3 Classroom CPU(-)
Geekbench 6.4 Multi-Core
Geekbench 6.4 Single-Core
Pros & cons summary
| Performance score | 5.63 | 35.69 |
| Recency | 4 January 2023 | 1 January 2025 |
| Physical cores | 5 | 24 |
| Threads | 6 | 24 |
| Chip lithography | 10 nm | 3 nm |
| Power consumption (TDP) | 15 Watt | 55 Watt |
Processor U300 has 266.7% lower power consumption.
Ultra 9 275HX, on the other hand, has a 533.9% higher aggregate performance score, an age advantage of 1 year, 380% more physical cores and 300% more threads, and a 233.3% more advanced lithography process.
The Intel Core Ultra 9 275HX is our recommended choice as it beats the Intel Processor U300 in performance tests.
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