Intel Core i7-1255U Benchmark, Test and specs
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The Intel Core i7-1255U has 10 cores with 12 threads and is based on the 12. gen of the Intel Core i7 series. The processor uses a mainboard with the BGA 1744 socket and was released in Q1/2022.
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| Name: | Intel Core i7-1255U |
| Family: | Intel Core i7 |
| CPU group: | Intel Core i 1200P/1200U |
| Segment: | Mobile |
| Generation: | 12 |
| Predecessor: | -- |
| Successor: | -- |
CPU lineage
CPU Cores and Base Frequency
In addition to the number of CPU cores and threads, you can see here whether the Intel Core i7-1255U can be overclocked. You will also find the clock frequencies of the processor (single-core and multi-core) here. The number of CPU cores greatly affects the speed of the processor.
| CPU Cores / Threads: | 10 / 12 |
| Core architecture: | hybrid (big.LITTLE) |
| A-Core: | 2x Golden Cove |
| B-Core: | 8x Gracemont |
| Hyperthreading / SMT: | Yes |
| Overclocking: | No |
| A-Core Frequency: | 1.70 GHz (4.70 GHz) |
| B-Core Frequency: | 1.20 GHz (3.50 GHz) |
Internal Graphics
The Intel Core i7-1255U has integrated graphics, called iGPU for short. The iGPU uses the system's main memory as graphics memory and sits on the processor's die. A processor with integrated graphics is also called APU (Accelerated Processing Unit).
| GPU name: | Intel Iris Xe Graphics 96 (Alder Lake) |
| GPU frequency: | 0.35 GHz |
| GPU (Turbo): | 1.25 GHz |
| Execution units: | 96 |
| Shader: | 768 |
| Max. GPU Memory: | 64 GB |
| Max. displays: | 4 |
| Generation: | 13 |
| Direct X: | 12.1 |
| Technology: | 10 nm |
| Release date: | Q1/2022 |
Hardware codec support
A photo or video codec that is accelerated in hardware can greatly accelerate the working speed of a processor and extend the battery life of notebooks or smartphones when playing videos.
| h265 / HEVC (8 bit): | Decode / Encode |
| h265 / HEVC (10 bit): | Decode / Encode |
| h264: | Decode / Encode |
| VP8: | Decode |
| VP9: | Decode / Encode |
| AV1: | Decode |
| AVC: | Decode / Encode |
| VC-1: | Decode |
| JPEG: | Decode / Encode |
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| Memory type: | DDR4-3200 DDR5-4800 LPDDR4X-4266 LPDDR5-5200 |
| Max. Memory: | 64 GB |
| Memory channels: | 2 |
| Bandwidth: | 76.8 GB/s |
| ECC: | No |
| PCIe: | 4.0 x 28 |
| AES-NI: | Yes |
Memory & PCIe
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| TDP (PL1): | 15 W |
| TDP (PL2): | 55 W |
| TDP up: | -- |
| TDP down: | -- |
| Tjunction max.: | 100 °C |
Thermal Management
Technical details
Here you will find information on the size of the level 2 and level 3 cache of the Intel Core i7-1255U as well as a list of the processors ISA extensions. We have documented the architecture and the manufacturing technology for you as well as the release date.
| Technology: | 10 nm |
| Chip design: | Monolithic |
| Socket: | BGA 1744 |
| L2-Cache: | 6.50 MB |
| L3-Cache: | 12.00 MB |
| Architecture: | Alder Lake U |
| Operating systems: | Windows 10, Windows 11, Linux |
| Virtualization: | VT-x, VT-x EPT, VT-d |
| Instruction set (ISA): | x86-64 (64 bit) |
| ISA extensions: | SSE4.1, SSE4.2, AVX2 |
| Release date: | Q1/2022 |
| Part Number: | -- |
| Documents: | -- |
10C 12T @ 1.70 GHz (4.70 GHz)
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Benchmark results
The benchmark results for the Intel Core i7-1255U have been carefully checked by us. We only publish benchmark results that have been created by us or that have been submitted by a visitor and then checked by a team member. All results are based on and fullfill our benchmark guidelines.
Cinebench R23 (Single-Core)
Cinebench R23 is the successor of Cinebench R20 and is also based on the Cinema 4 Suite. Cinema 4 is a worldwide used software to create 3D forms. The single-core test only uses one CPU core, the amount of cores or hyperthreading ability doesn't count.
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Intel Core i7-12700H
14C 20T @ 4.70 GHz |
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Intel Core i5-12500
6C 12T @ 4.60 GHz |
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Intel Core i7-1260P
12C 16T @ 4.70 GHz |
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Intel Core i7-1255U
10C 12T @ 4.70 GHz |
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Apple M2 (8-GPU)
8C 8T @ 3.50 GHz |
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Apple M2
8C 8T @ 3.50 GHz |
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Intel Core i9-11900KF
8C 16T @ 5.30 GHz |
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Cinebench R23 (Multi-Core)
Cinebench R23 is the successor of Cinebench R20 and is also based on the Cinema 4 Suite. Cinema 4 is a worldwide used software to create 3D forms. The multi-core test involves all CPU cores and taks a big advantage of hyperthreading.|
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Apple M1
8C 8T @ 3.20 GHz |
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Apple M1 (7-GPU)
8C 8T @ 3.20 GHz |
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AMD Ryzen 5 2600
6C 12T @ 3.70 GHz |
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Intel Core i7-1255U
10C 12T @ 2.70 GHz |
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AMD Ryzen 5 2600X
6C 12T @ 4.00 GHz |
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Intel Core i7-10850H
6C 12T @ 3.40 GHz |
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Intel Core i7-10750H
6C 12T @ 3.20 GHz |
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Cinebench R20 (Single-Core)
Cinebench R20 is the successor of Cinebench R15 and is also based on the Cinema 4 Suite. Cinema 4 is a worldwide used software to create 3D forms. The single-core test only uses one CPU core, the amount of cores or hyperthreading ability doesn't count.|
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Intel Core i5-12400
6C 12T @ 4.40 GHz |
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Intel Core i9-11900K
8C 16T @ 5.30 GHz |
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Intel Core i9-11900KF
8C 16T @ 5.30 GHz |
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Intel Core i7-1255U
10C 12T @ 4.70 GHz |
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AMD Ryzen 9 6980HS
8C 16T @ 5.00 GHz |
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AMD Ryzen 9 6980HX
8C 16T @ 5.00 GHz |
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AMD Ryzen 9 5950X
16C 32T @ 4.90 GHz |
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Cinebench R20 (Multi-Core)
Cinebench R20 is the successor of Cinebench R15 and is also based on the Cinema 4 Suite. Cinema 4 is a worldwide used software to create 3D forms. The multi-core test involves all CPU cores and taks a big advantage of hyperthreading.
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AMD Ryzen 7 2700E
8C 16T @ 3.20 GHz |
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Intel Core i7-5930K
6C 12T @ 3.60 GHz |
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AMD Ryzen 5 2600X
6C 12T @ 4.00 GHz |
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Intel Core i7-1255U
10C 12T @ 2.70 GHz |
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AMD Ryzen 7 PRO 4750U
8C 16T @ 3.10 GHz |
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Intel Core i5-10600T
6C 12T @ 3.70 GHz |
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Intel Core i7-10850H
6C 12T @ 3.40 GHz |
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Geekbench 5, 64bit (Single-Core)
Geekbench 5 is a cross plattform benchmark that heavily uses the systems memory. A fast memory will push the result a lot. The single-core test only uses one CPU core, the amount of cores or hyperthreading ability doesn't count.
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AMD Ryzen Threadripper PRO 5955WX
16C 32T @ 4.50 GHz |
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AMD Ryzen Threadripper PRO 5975WX
32C 64T @ 4.50 GHz |
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AMD Ryzen Threadripper PRO 5995WX
64C 128T @ 4.50 GHz |
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Intel Core i7-1255U
10C 12T @ 4.70 GHz |
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Intel Core i9-11900H
8C 16T @ 4.90 GHz |
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AMD Ryzen 7 5700G
8C 16T @ 4.60 GHz |
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Intel Core i7-11375H
4C 8T @ 5.00 GHz |
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Geekbench 5, 64bit (Multi-Core)
Geekbench 5 is a cross plattform benchmark that heavily uses the systems memory. A fast memory will push the result a lot. The multi-core test involves all CPU cores and taks a big advantage of hyperthreading.|
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Intel Core i7-5930K
6C 12T @ 3.60 GHz |
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AMD Ryzen 5 PRO 5650U
6C 12T @ 3.60 GHz |
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AMD Ryzen 5 2600X
6C 12T @ 4.00 GHz |
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Intel Core i7-1255U
10C 12T @ 2.70 GHz |
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Intel Xeon D-2146NT
8C 16T @ 2.30 GHz |
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AMD Ryzen 7 2700E
8C 16T @ 3.20 GHz |
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AMD Ryzen 5 PRO 5675U
6C 12T @ 3.60 GHz |
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iGPU - FP32 Performance (Single-precision GFLOPS)
The theoretical computing performance of the internal graphics unit of the processor with simple accuracy (32 bit) in GFLOPS. GFLOPS indicates how many billion floating point operations the iGPU can perform per second.|
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AMD Ryzen 7 5700U
AMD Radeon 8 Graphics (Renoir) @ 1.90 GHz |
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Google Tensor
ARM Mali-G78 MP20 @ 0.76 GHz |
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Intel Core i7-1165G7
Intel Iris Xe Graphics 96 (Tiger Lake G7) @ 1.30 GHz |
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Intel Core i7-1255U
Intel Iris Xe Graphics 96 (Alder Lake) @ 1.25 GHz |
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Intel Core i7-1255UL
Intel Iris Xe Graphics 96 (Alder Lake) @ 1.25 GHz |
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Intel Core i7-1265UL
Intel Iris Xe Graphics 96 (Alder Lake) @ 1.25 GHz |
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Intel Core i7-1265U
Intel Iris Xe Graphics 96 (Alder Lake) @ 1.25 GHz |
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Estimated results for PassMark CPU Mark
Some of the CPUs listed below have been benchmarked by CPU-monkey. However the majority of CPUs have not been tested and the results have been estimated by a CPU-monkey’s secret proprietary formula. As such they do not accurately reflect the actual Passmark CPU mark values and are not endorsed by PassMark Software Pty Ltd.|
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Intel Core i5-8600K
6C 6T @ 4.10 GHz |
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Intel Xeon E5-2630 v3
8C 16T @ 2.80 GHz |
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Intel Core i7-3970X
6C 12T @ 4.00 GHz |
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Intel Core i7-1255U
10C 12T @ 2.70 GHz |
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Intel Xeon E5-1650 v2
6C 12T @ 3.70 GHz |
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Intel Core i7-3960X
6C 12T @ 3.90 GHz |
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Intel Core i7-1265U
10C 12T @ 2.40 GHz |
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Cinebench R15 (Single-Core)
Cinebench R15 is the successor of Cinebench 11.5 and is also based on the Cinema 4 Suite. Cinema 4 is a worldwide used software to create 3D forms. The single-core test only uses one CPU core, the amount of cores or hyperthreading ability doesn't count.|
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AMD Ryzen 7 5700G
8C 16T @ 4.60 GHz |
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AMD Ryzen 7 5800X3D
8C 16T @ 4.50 GHz |
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AMD Ryzen 9 5980HS
8C 16T @ 4.80 GHz |
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Intel Core i7-1255U
10C 12T @ 4.70 GHz |
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Intel Core i5-11600KF
6C 12T @ 4.90 GHz |
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Intel Core i3-12100F
4C 8T @ 4.30 GHz |
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Intel Core i3-12100
4C 8T @ 4.30 GHz |
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Cinebench R15 (Multi-Core)
Cinebench R15 is the successor of Cinebench 11.5 and is also based on the Cinema 4 Suite. Cinema 4 is a worldwide used software to create 3D forms. The multi-core test involves all CPU cores and taks a big advantage of hyperthreading.|
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Intel Core i7-9700K
8C 8T @ 4.60 GHz |
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AMD Ryzen 5 PRO 4650G
6C 12T @ 4.15 GHz |
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Intel Xeon W-2235
6C 12T @ 4.60 GHz |
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Intel Core i7-1255U
10C 12T @ 2.70 GHz |
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Intel Core i5-10500
6C 12T @ 4.20 GHz |
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Intel Core i7-9700F
8C 8T @ 3.80 GHz |
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Intel Core i7-9700
8C 8T @ 3.80 GHz |
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The Intel Core i7-1255U from the Alder Lake U series is manufactured using the 10-nanometer process and is based on a big.LITTLE core architecture. Two performance cores (codename "Golden Cove") with hyperthreading are used here, which have a standard clock of 1.70 gigahertz and can increase to a clock rate of up to 4.70 gigahertz in turbo mode. The 2 performance cores are supported by 8 efficiency cores (codename "Gracemont"). These do not support hyperthreading and have a basic clock frequency of 1.20 gigahertz. The maximum turbo clock of 3.50 gigahertz is also slightly lower than that of the performance cores. Overall, the Intel Core i7-1255U has 10 processor cores and 12 threads.
The Intel Iris Xe Graphics 96 (Alder Lake) is used as the graphics unit. It was also released in the first quarter of 2022 and is also being manufactured with a structure width of 10 nanometers. The iGPU clocks at 0.35 gigahertz and can increase its clock rate to up to 1.25 gigahertz in turbo mode. The iGPU, which comes from the 13th generation of Intels integrated graphics units, has 96 execution units with a total of 768 shaders. With this you achieve a theoretical FP32 computing power (single precision) of 1916 GigaFLOPS.
The Intel Core i7-1255U officially supports the following memory types: DDR4-3200, DDR5-4800, LPDDR4X-4266, LPDDR5-5200. The processor has 2 memory channels with which it is able to be operated with up to 64 gigabytes of RAM. The maximum supported bandwidth of the RAM is 76.8 GB/s.
The Intel Core i7-1255U has 28 PCIs lines in version 4.0 for connecting dedicated graphics cards or other expansion cards.
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