i3-12300T vs i7-1255U
Aggregate performance score
Core i7-1255U outperforms Core i3-12300T by a minimal 4% based on our aggregate benchmark results.
Primary details
Comparing Core i7-1255U and Core i3-12300T processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 896 | 921 |
| Place by popularity | 74 | not in top-100 |
| Market segment | Laptop | Desktop processor |
| Series | Intel Alder Lake-M | no data |
| Power efficiency | 53.82 | 22.25 |
| Architecture codename | Alder Lake-U (2022) | Alder Lake-S (2022) |
| Release date | 23 February 2022 (2 years ago) | January 2022 (2 years ago) |
Detailed specifications
Core i7-1255U and Core i3-12300T 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) | 4 (Quad-Core) |
| Performance-cores | no data | 4 |
| Threads | 12 | 8 |
| Base clock speed | 1.7 GHz | 2.3 GHz |
| Boost clock speed | 4.7 GHz | 4.2 GHz |
| 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) | 12 MB (shared) |
| Chip lithography | 10 nm | Intel 7 nm |
| Die size | no data | 163 mm2 |
| Maximum core temperature | 100 °C | 100 °C |
| 64 bit support | + | + |
| Windows 11 compatibility | + | + |
Compatibility
Information on Core i7-1255U and Core i3-12300T 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 | Intel BGA 1744 | FCLGA1700 |
| Power consumption (TDP) | 15 Watt | 35 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Core i7-1255U and Core i3-12300T. 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 | + | + |
| FMA | + | - |
| AVX | + | + |
| Enhanced SpeedStep (EIST) | + | + |
| Speed Shift | no data | + |
| Turbo Boost Technology | no data | 2.0 |
| Hyper-Threading Technology | no data | + |
| TSX | + | + |
| Idle States | no data | + |
| Thermal Monitoring | - | + |
| Turbo Boost Max 3.0 | no data | - |
| Deep Learning Boost | - | + |
Security technologies
Core i7-1255U and Core i3-12300T 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 Core i3-12300T 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 Core i3-12300T. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR4, DDR5 | DDR5-4800, DDR4-3200 |
| Maximum memory size | no data | 128 GB |
| Max memory channels | no data | 2 |
| Maximum memory bandwidth | no data | 76.8 GB/s |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card Compare | Intel Iris Xe Graphics G7 96EUs ( - 1250 MHz) | Intel UHD Graphics 730 |
| Quick Sync Video | - | + |
| Clear Video HD | no data | + |
| Graphics max frequency | no data | 1.45 GHz |
| Execution Units | no data | 24 |
Graphics interfaces
Available interfaces and connections of Core i7-1255U and Core i3-12300T integrated GPUs.
| Number of displays supported | no data | 4 |
Graphics image quality
Maximum display resolutions supported by Core i7-1255U and Core i3-12300T integrated GPUs, including resolutions over different interfaces.
| Max resolution over HDMI 1.4 | no data | 4096 x 2160 @ 60Hz |
| Max resolution over eDP | no data | 5120 x 3200 @ 120Hz |
| Max resolution over DisplayPort | no data | 7680 x 4320 @ 60Hz |
Graphics API support
APIs supported by Core i7-1255U and Core i3-12300T integrated GPUs, sometimes API versions are included.
| DirectX | no data | 12 |
| OpenGL | no data | 4.5 |
Peripherals
Specifications and connection of peripherals supported by Core i7-1255U and Core i3-12300T.
| PCIe version | 4.0 | 5.0 and 4.0 |
| PCI Express lanes | 20 | 20 |
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. We are regularly improving our combining algorithms, but if you find some perceived inconsistencies, feel free to speak up in comments section, we usually fix problems quickly.
Passmark
Passmark CPU Mark is a widespread benchmark, consisting of 8 different types of workload, including integer and floating point math, extended instructions, compression, encryption and physics calculation. There is also one separate single-threaded scenario measuring single-core performance.
Pros & cons summary
| Performance score | 8.53 | 8.23 |
| Integrated graphics card | 9.21 | 4.16 |
| Physical cores | 10 | 4 |
| Threads | 12 | 8 |
| Power consumption (TDP) | 15 Watt | 35 Watt |
i7-1255U has a 3.6% higher aggregate performance score, 121.4% faster integrated GPU, 150% more physical cores and 50% more threads, and 133.3% lower power consumption.
Given the minimal performance differences, no clear winner can be declared between Core i7-1255U and Core i3-12300T.
Be aware that Core i7-1255U is a notebook processor while Core i3-12300T is a desktop one.
Should you still have questions on choice between Core i7-1255U and Core i3-12300T, 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.
