Processor U300 vs i7-1255U
Aggregate performance score
Core i7-1255U outperforms Processor U300 by a considerable 48% 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 | 1003 | 1258 |
| Place by popularity | not in top-100 | not in top-100 |
| Market segment | Laptop | Laptop |
| Series | Intel Alder Lake-M | Intel Raptor Lake-U |
| Power efficiency | 53.13 | 35.93 |
| Designer | Intel | Intel |
| Manufacturer | Intel | Intel |
| Architecture codename | Alder Lake-U (2022) | Raptor Lake-U (2023) |
| Release date | 23 February 2022 (3 years ago) | 4 January 2023 (2 years ago) |
| Launch price (MSRP) | no data | $193 |
Detailed specifications
Core i7-1255U and Processor U300 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 | 10 (Deca-Core) | 5 (Penta-Core) |
| Performance-cores | 2 | no data |
| Efficient-cores | 8 | no data |
| Threads | 12 | 6 |
| Base clock speed | 1.7 GHz | 1.2 GHz |
| Boost clock speed | 4.7 GHz | 4.4 GHz |
| Bus rate | no data | 55 MHz |
| L1 cache | 80K (per core) | 80K (per core) |
| L2 cache | 1.25 MB (per core) | 1.25 MB (per core) |
| L3 cache | 12 MB (shared) | 8 MB (shared) |
| Chip lithography | Intel 7 nm | 10 nm |
| Maximum core temperature | 100 °C | 100 °C |
| 64 bit support | + | + |
| Windows 11 compatibility | + | + |
Compatibility
Information on Core i7-1255U and Processor U300 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 | FCBGA1744 | Intel BGA 1744 |
| Power consumption (TDP) | 15 Watt | 15 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Core i7-1255U and Processor U300. 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 | + | + |
| FMA | + | - |
| AVX | + | + |
| Enhanced SpeedStep (EIST) | + | + |
| Speed Shift | + | no data |
| Hyper-Threading Technology | + | no data |
| TSX | + | + |
| Thermal Monitoring | + | - |
| Flex Memory Access | + | no data |
| Deep Learning Boost | + | - |
Security technologies
Core i7-1255U and Processor U300 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 i7-1255U and Processor U300 are enumerated here.
| VT-d | + | + |
| VT-x | + | + |
| EPT | + | no data |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Core i7-1255U and Processor U300. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR4, DDR5 | DDR4, DDR5 Dual-channel |
| Maximum memory size | 64 GB | no data |
| Max memory channels | 2 | no data |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | Intel® Iris® Xe Graphics eligible | Intel UHD Graphics Xe G4 48EUs ( - 1100 MHz) |
| Quick Sync Video | + | - |
| Graphics max frequency | 1.25 GHz | no data |
| Execution Units | 96 | no data |
Graphics interfaces
Available interfaces and connections of Core i7-1255U and Processor U300 integrated GPUs.
| Number of displays supported | 4 | no data |
Graphics image quality
Maximum display resolutions supported by Core i7-1255U and Processor U300 integrated GPUs, including resolutions over different interfaces.
| Max resolution over HDMI 1.4 | 4096 x 2304 @ 60Hz | no data |
| Max resolution over eDP | 4096 x 2304 @ 120Hz | no data |
| Max resolution over DisplayPort | 7680 x 4320 @ 60Hz | no data |
Graphics API support
APIs supported by Core i7-1255U and Processor U300 integrated GPUs, sometimes API versions are included.
| DirectX | 12.1 | no data |
| OpenGL | 4.6 | no data |
Peripherals
Specifications and connection of peripherals supported by Core i7-1255U and Processor U300.
| PCIe version | 4.0 | 4.0 |
| PCI Express lanes | 20 | 8 |
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 | 8.31 | 5.62 |
| Recency | 23 February 2022 | 4 January 2023 |
| Physical cores | 10 | 5 |
| Threads | 12 | 6 |
i7-1255U has a 47.9% higher aggregate performance score, and 100% more physical cores and 100% more threads.
Processor U300, on the other hand, has an age advantage of 10 months.
The Intel Core i7-1255U is our recommended choice as it beats the Intel Processor U300 in performance tests.
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