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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. The Intel Core i7-1255U scores 1,603 points in the Geekbench 5 single-core benchmark. In the Geekbench 5 multi-core benchmark, the result is 7,612 points.
| Name: | Intel Core i7-1255U |
|---|---|
| Family: | Intel Core i7 (300) |
| CPU group: | Intel Core i 1200P/1200U (21) |
| Architecture: | Alder Lake U |
| Technology: | 10 nm |
| Segment: | Notebook |
| Generation: | 12 |
| Predecessor: | -- |
| Successor: | Intel Core i7-1355U |
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 Intel Core i7-1255U is 1.70 GHz (4.70 GHz). The number of CPU cores greatly affects the speed of the processor and is an important performance indicator.
| 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) |
Integrated graphics (iGPU)
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 |
| Compute units: | 96 |
| Shader: | 768 |
| Hardware Raytracing: | No |
| Release date: | Q1/2022 |
| Max. displays: | 4 |
|---|---|
| Generation: | 13 |
| Direct X: | 12.1 |
| Technology: | 10 nm |
| Max. GPU Memory: | 32 GB |
| Frame Generation: | No |
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 & PCIeThe processor can use up to 64 GB memory in 2 (Dual Channel) memory channels. The maximum memory bandwidth is 83.2 GB/s. The memory type as well as the amount of memory can greatly affect the speed of the system. |
|
| Memory type: | Memory bandwidth: |
|---|---|
| LPDDR5-5200 LPDDR4X-4266 DDR5-4800 DDR4-3200 | 83.2 GB/s 68.2 GB/s 76.8 GB/s 51.2 GB/s |
| Max. Memory: | 64 GB |
| Memory channels: | 2 (Dual Channel) |
| ECC: | No |
| PCIe: | 4.0 x 28 |
| PCIe Bandwidth: | 55.1 GB/s |
Thermal ManagementThe thermal design power (TDP for short) of the processor is 15 W. The TDP specifies the necessary cooling solution that is required to cool the processor sufficiently. The TDP usually gives a rough idea of the actual power consumption of the CPU. |
|
|---|---|
| TDP (PL1 / PBP): | 15 W |
| TDP (PL2): | 55 W |
| TDP up: | -- |
| TDP down: | -- |
| Tjunction max.: | 100 °C |
Technical details
The Intel Core i7-1255U is made in 10 nm. The smaller the manufacturing process of a CPU, the more modern and energy-efficient it is. Overall, the processor has 18.50 MB cache. A large cache can greatly speed up the processor's speed in some cases such as games.
| Technology: | 10 nm |
|---|---|
| Chip design: | Monolithic |
| Socket: | BGA 1744 |
| L2-Cache: | 6.50 MB |
| L3-Cache: | 12.00 MB |
| AES-NI: | Yes |
| 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 |
| Release price: | -- |
| Part Number: | -- |
| Documents: | Technical data sheet |
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 Ultra 9 185H
16C 22T @ 5.10 GHz |
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Intel Core i7-1260P
12C 16T @ 4.70 GHz |
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Intel Core Ultra 7 155H
16C 22T @ 4.80 GHz |
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Intel Core i7-1255U
10C 12T @ 4.70 GHz |
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AMD Ryzen 7 PRO 8840HS
8C 16T @ 5.10 GHz |
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AMD Ryzen 7 PRO 8845HS
8C 16T @ 5.10 GHz |
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AMD Ryzen 7 8840H
8C 16T @ 5.10 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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AMD Ryzen 5 5625U
6C 12T @ 3.40 GHz |
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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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Intel Core i7-1255U
10C 12T @ 2.70 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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AMD Ryzen 5 PRO 5650U
6C 12T @ 3.60 GHz |
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Geekbench 6 Single-Core
Geekbench 6 is a partial load benchmark for modern computers, notebooks and smartphones. In the single-core test, only the fastest CPU core is measured. The test run simulates the performance in practice.
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Intel Core Ultra 5 125U
12C 14T @ 4.30 GHz |
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Intel Pentium Gold 8505
5C 6T @ 4.40 GHz |
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Intel Xeon W-11855M
6C 12T @ 4.90 GHz |
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Intel Core i7-1255U
10C 12T @ 4.70 GHz |
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Intel Core Ultra 5 235U
12C 14T @ 4.90 GHz |
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Intel Core i9-11950H
8C 16T @ 5.00 GHz |
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Intel Core i9-11980HK
8C 16T @ 5.00 GHz |
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Geekbench 6 Multi-Core
The practical Geekbench 6 multi-core benchmark tests the system's performance under partial load. The processor's maximum power consumption is far from being used up.
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AMD Ryzen 7 5800U
8C 16T @ 3.40 GHz |
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Intel Core i7-10875H
8C 16T @ 3.20 GHz |
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Intel Core i9-9980HK
8C 16T @ 3.40 GHz |
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Intel Core i7-1255U
10C 12T @ 2.70 GHz |
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AMD Ryzen 9 5900HS
8C 16T @ 4.00 GHz |
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Intel Core i9-10880H
8C 16T @ 2.30 GHz |
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Intel Core i7-10870H
8C 16T @ 3.10 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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Intel Core i7-1260P
12C 16T @ 4.70 GHz |
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Intel Core i7-12700H
14C 20T @ 4.70 GHz |
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Intel Core i7-12700HL
14C 20T @ 4.70 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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Intel Core i7-1260U
10C 12T @ 4.70 GHz |
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Intel Core i7-1250U
10C 12T @ 4.70 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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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 7 5700U
8C 16T @ 3.30 GHz |
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Intel Core i7-1255U
10C 12T @ 2.70 GHz |
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AMD Ryzen 7 4800HS
8C 16T @ 3.80 GHz |
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Intel Core i7-10875H
8C 16T @ 3.20 GHz |
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Intel Core i7-10870H
8C 16T @ 3.10 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 i7-12700H
14C 20T @ 4.70 GHz |
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AMD Ryzen 7 8745HS
8C 16T @ 4.90 GHz |
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Intel Core i5-1335U
10C 12T @ 4.60 GHz |
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Intel Core i7-1255U
10C 12T @ 4.70 GHz |
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AMD Ryzen 9 6980HX
8C 16T @ 5.00 GHz |
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AMD Ryzen 9 6980HS
8C 16T @ 5.00 GHz |
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AMD Ryzen 9 6900HX
8C 16T @ 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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Intel Core i5-1235U
10C 12T @ 2.50 GHz |
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AMD Ryzen 9 4900U
8C 16T @ 3.40 GHz |
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AMD Ryzen 5 4600H
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 i7-10850H
6C 12T @ 3.40 GHz |
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Intel Core i7-10750H
6C 12T @ 3.20 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 RX Vega 8 (Renoir) @ 1.90 GHz |
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Intel Core Ultra 7 155U
Intel Iris Xe 4 Core Graphics 64 EUs (Meteor Lake) @ 1.95 GHz |
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Intel Core i7-1165G7
Intel Iris Xe Graphics 96 (Tiger Lake) @ 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 i7-1265U
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 i7-1255UL
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 i7-1265UL
10C 12T @ 3.40 GHz |
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Intel Core i3-1220P
10C 12T @ 2.70 GHz |
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Intel Core i9-9880H
8C 16T @ 3.40 GHz |
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Intel Core i7-1255U
10C 12T @ 2.70 GHz |
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Intel Core i5-1235U
10C 12T @ 2.50 GHz |
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AMD Ryzen 5 4680U
6C 12T @ 2.20 GHz |
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AMD Ryzen 7 4700U
8C 8T @ 3.40 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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Intel Core i9-11900KB
8C 16T @ 5.30 GHz |
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AMD Ryzen 9 6900HS
8C 16T @ 4.60 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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AMD Ryzen 7 6800U
8C 16T @ 4.70 GHz |
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AMD Ryzen 7 5800H
8C 16T @ 4.40 GHz |
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Intel Core i7-1260P
12C 16T @ 4.70 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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AMD Ryzen 5 PRO 6650U
6C 12T @ 3.80 GHz |
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Intel Core i9-9880H
8C 16T @ 3.40 GHz |
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Intel Core i7-10870H
8C 16T @ 3.10 GHz |
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Intel Core i7-1255U
10C 12T @ 2.70 GHz |
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AMD Ryzen 5 4600H
6C 12T @ 4.00 GHz |
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AMD Ryzen 5 7530U
6C 12T @ 3.00 GHz |
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AMD Ryzen 5 PRO 7530U
6C 12T @ 3.00 GHz |
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Benchmarks
Cinebench R23 (SC)
646 entries
646 entries
Cinebench R23 (MC)
626 entries
626 entries
Geekbench 6 (SC)
1,886 entries
1,886 entries
Geekbench 6 (MC)
1,820 entries
1,820 entries
Geekbench 5 (SC)
2,510 entries
2,510 entries
Geekbench 5 (MC)
2,477 entries
2,477 entries
Cinebench R20 (SC)
665 entries
665 entries
Cinebench R20 (MC)
613 entries
613 entries
FP32 SP (iGPU)
2,155 entries
2,155 entries
3DMark Timespy (iGPU)
530 entries
530 entries
PassMark CPU-Mark
2,457 entries
2,457 entries
V-Ray CPU-Render
250 entries
250 entries
Cinebench R15 (SC)
1,110 entries
1,110 entries
Cinebench R15 (MC)
1,106 entries
1,106 entries
Description of the processor
The Intel Core i7-1255U was launched by Intel in the first quarter of 2022 and comes from the mobile sector of Intels CPU program. It is only permanently installed and is based on the BGA 1744 socket.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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