| Name: | Intel Core i7-1255U |
| Family: | Intel Core i7 |
| Group: | Intel Core i 1200P/1200U |
| Segment: | Mobile |
| Generation: | 12 |
Intel Core i7-1255U Benchmark, Test and specs
Last updated:
CPU lineage
The Intel Core i7-1255U features 10 processor cores and has the capability to manage 12 threads concurrently. It was released in Q1/2022 and belongs to the 12 generation of the Intel Core i7 series. To use the Intel Core i7-1255U, you'll need a motherboard with a BGA 1744 socket.
CPU Cores and Base Frequency
The Intel Core i7-1255U has 10 CPU cores and can calculate 12 threads in parallel. The clock frequency of the A-Core is 1.7 GHz. The number of CPU cores greatly affects the speed of the processor and is an important performance indicator. Processors with hybrid (big.LITTLE) architecture strike a balance between performance and power efficiency, making them ideal for mobile devices.
| CPU Cores: | 10 |
| Threads: | 12 |
| Cores A: | 2x Golden Cove |
| Cores B: | 8x Gracemont |
| Core architecture: | hybrid (big.LITTLE) |
| Hyperthreading: | Yes |
| Overclocking: | No |
| A-Core Frequency: | 1.7 GHz |
| B-Core Frequency: | 1.2 GHz |
| A-Core Frequency Turbo: | 4.7 GHz |
| B-Core Frequency Turbo: | 3.5 GHz |
Internal Graphics
The Intel Core i7-1255U has integrated graphics, called iGPU for short. Specifically, the Intel Core i7-1255U uses the Intel Iris Xe Graphics 96 (Alder Lake), which has 768 texture shaders and 96 execution units. The iGPU uses the system's main memory as graphics memory and sits on the processor's die.
| GPU name: | Intel Iris Xe Graphics 96 (Alder Lake) |
| GPU frequency: | 0.35 GHz |
| GPU (Turbo): | 1.25 GHz |
| Execution units: | 96 |
| Shaders: | 768 |
| Max. GPU Memory: | 32.0 GB |
| Max. displays: | -- |
| 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 |
Memory & PCIe
The processor supports a maximum memory capacity of 64.0 GB distributed across 2 memory channels. It offers a peak memory bandwidth of 76.8 GB/s. Both the type and quantity of memory can have a substantial impact on the overall system performance.
| Memory type: | DDR4-3200, LPDDR4X-4266, DDR5-4800, LPDDR5-5200 |
| Max. Memory: | 64.0 GB |
| Memory channels: | 2 |
| Bandwidth: | 76.8 GB/s |
| ECC: | No |
| PCIe: | pci |
| AES-NI: | Yes |
Thermal Management
The processor has a thermal design power (TDP) of 15 W watts. TDP indicates the cooling solution needed to effectively manage the processor's heat. It generally provides an approximate indication of the actual power consumption of the CPU itself.
| TDP (PL1 / PBP): | 15 W |
| TDP (PL2): | 55 W |
| TDP up: | None |
| TDP down: | None |
| Tjunction max: | 100 °C |
Technical details
The Intel Core i7-1255U is manufactured using a 10 nm process. A smaller manufacturing process indicates a more contemporary and energy-efficient CPU. In total, this processor boasts a generous 12.0 MB cache. A substantial cache can significantly enhance the processor's performance, particularly in scenarios like gaming.
| Technology: | 10 nm |
| Chip design: | Monolithic |
| Socket: | BGA 1744 |
| L2-Cache: | 6.5 MB |
| L3-Cache: | 12.0 MB |
| Architecture: | Alder Lake U |
| Operating systems: | Windows 10, Linux, Windows 11 |
| 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 |
| Release price: | -- |
| Part Number: | -- |
| Documents: | Technical data sheet |
ADS
Benchmarks
Estimated results for PassMark CPU Mark
|
Intel Xeon Silver 4210
10C 20T @ 2.2 GHz
|
13924
|
|
Intel Xeon E5-1660 v2
6C 12T @ 3.7 GHz
|
13919
|
|
|
Intel Core i7-1255U
10C 12T @ 1.7 GHz
|
13905
|
|
Intel Xeon W-1250E
6C 12T @ 3.5 GHz
|
13894
|
|
Intel Core i3-12100F
4C 8T @ 3.3 GHz
|
13880
|
Geekbench 5, 64bit (Multi-Core)
|
AMD EPYC 7282
16C 32T @ 2.8 GHz
|
7638
|
|
AMD Ryzen 5 5600G
6C 12T @ 3.9 GHz
|
7612
|
|
|
Intel Core i7-1255U
10C 12T @ 1.7 GHz
|
7612
|
|
|
AMD Ryzen 5 5600G
6C 12T @ 3.9 GHz
|
7612
|
|
AMD Ryzen 7 4800HS
8C 16T @ 2.9 GHz
|
7608
|
Cinebench R23 (Multi-Core)
|
Apple M1
8C 8T @ 3.2 GHz
|
7759
|
|
|
AMD Ryzen 5 2600
6C 12T @ 3.4 GHz
|
7555
|
|
|
Intel Core i7-1255U
10C 12T @ 1.7 GHz
|
7545
|
|
|
AMD Ryzen 5 2600X
6C 12T @ 3.6 GHz
|
7514
|
|
|
Intel Core i7-10850H
6C 12T @ 2.7 GHz
|
7455
|
Geekbench 6 (Multi-Core)
|
AMD Ryzen Threadripper 1920X
12C 24T @ 3.5 GHz
|
6951
|
|
Intel Core i9-9980HK
8C 16T @ 2.4 GHz
|
6927
|
|
|
Intel Core i7-1255U
10C 12T @ 1.7 GHz
|
6908
|
|
|
Intel Core i7-7800X
6C 12T @ 3.5 GHz
|
6897
|
|
AMD Ryzen 9 5900HS
8C 16T @ 3.0 GHz
|
6886
|
V-Ray CPU-Render Benchmark
|
Intel Core i7-6800K
6C 12T @ 3.4 GHz
|
4855
|
|
|
AMD Ryzen 5 5500U
6C 12T @ 2.1 GHz
|
4848
|
|
|
Intel Core i7-1255U
10C 12T @ 1.7 GHz
|
4820
|
|
|
Intel Core i7-11370H
4C 8T @ 3.3 GHz
|
4817
|
|
Intel Core i5-10400T
6C 12T @ 2.0 GHz
|
4815
|
Cinebench R20 (Multi-Core)
|
|
Intel Core i7-5930K
6C 12T @ 3.5 GHz
|
3052
|
|
|
AMD Ryzen 5 2600X
6C 12T @ 3.6 GHz
|
3048
|
|
|
Intel Core i7-1255U
10C 12T @ 1.7 GHz
|
3009
|
|
AMD Ryzen 7 PRO 4750U
8C 16T @ 1.7 GHz
|
3007
|
|
|
Intel Core i5-10600T
6C 12T @ 2.4 GHz
|
2993
|
Geekbench 6 (Single-Core)
|
|
Intel Core i5-11600K
6C 12T @ 3.9 GHz
|
2138
|
|
|
AMD Ryzen 7 5800X
8C 16T @ 3.8 GHz
|
2136
|
|
|
Intel Core i7-1255U
10C 12T @ 1.7 GHz
|
2136
|
|
|
AMD Ryzen 7 5800X
8C 16T @ 3.8 GHz
|
2136
|
|
|
Intel Core i3-13100T
4C 8T @ 2.5 GHz
|
2134
|
iGPU - FP32 Performance (Single-precision GFLOPS)
|
|
Intel Core i7-1265UL
10C 12T @ 2.6 GHz
|
1916
|
|
|
Intel Core i7-1265U
10C 12T @ 1.8 GHz
|
1916
|
|
|
Intel Core i7-1255U
10C 12T @ 1.7 GHz
|
1916
|
|
|
Intel Core i7-1255UL
10C 12T @ 2.6 GHz
|
1916
|
|
|
Intel Core i7-1265U
10C 12T @ 1.8 GHz
|
1916
|
Cinebench R23 (Single-Core)
|
|
Intel Core i7-1270P
12C 16T @ 2.2 GHz
|
1781
|
|
|
Intel Core i7-1260P
12C 16T @ 2.1 GHz
|
1773
|
|
|
Intel Core i7-1255U
10C 12T @ 1.7 GHz
|
1761
|
|
|
Intel Core i3-13100F
4C 8T @ 3.4 GHz
|
1751
|
|
|
Intel Core i3-13100
4C 8T @ 3.4 GHz
|
1751
|
Geekbench 5, 64bit (Single-Core)
|
AMD Ryzen Threadripper PRO 5965WX
24C 48T @ 3.8 GHz
|
1604
|
|
|
AMD Ryzen Threadripper PRO 5945WX
12C 24T @ 4.1 GHz
|
1604
|
|
|
Intel Core i7-1255U
10C 12T @ 1.7 GHz
|
1603
|
|
|
Intel Core i9-11900H
8C 16T @ 2.5 GHz
|
1599
|
|
|
Intel Core i3-1215U
6C 8T @ 1.2 GHz
|
1596
|
Cinebench R15 (Multi-Core)
|
AMD Ryzen 5 PRO 4650G
6C 12T @ 3.7 GHz
|
1516
|
|
|
Intel Xeon W-2235
6C 12T @ 3.8 GHz
|
1514
|
|
|
Intel Core i7-1255U
10C 12T @ 1.7 GHz
|
1498
|
|
|
Intel Core i5-10500
6C 12T @ 3.1 GHz
|
1491
|
|
|
Intel Core i7-9700
8C 8T @ 3.0 GHz
|
1491
|
Cinebench R20 (Single-Core)
|
|
AMD Ryzen 9 6980HS
8C 16T @ 3.3 GHz
|
649
|
|
|
AMD Ryzen 9 6980HX
8C 16T @ 3.3 GHz
|
649
|
|
|
Intel Core i7-1255U
10C 12T @ 1.7 GHz
|
649
|
|
|
AMD Ryzen 9 6980HX
8C 16T @ 3.3 GHz
|
649
|
|
|
AMD Ryzen 9 6980HS
8C 16T @ 3.3 GHz
|
649
|
Cinebench R15 (Single-Core)
|
|
AMD Ryzen 9 5980HS
8C 16T @ 3.0 GHz
|
247
|
|
|
Intel Core i5-11600KF
6C 12T @ 3.9 GHz
|
245
|
|
|
Intel Core i7-1255U
10C 12T @ 1.7 GHz
|
245
|
|
|
Intel Core i5-11600KF
6C 12T @ 3.9 GHz
|
245
|
|
|
Intel Core i3-12100
4C 8T @ 3.3 GHz
|
242
|