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.
Intel Core i7-1255U

At a glance

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 & PCIe

The 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 Management

The 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

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Benchmark results

Verified 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.
Intel Core Ultra 9 185H Intel Core Ultra 9 185H
16C 22T @ 5.10 GHz
1775
Intel Core i7-1260P Intel Core i7-1260P
12C 16T @ 4.70 GHz
1773
Intel Core Ultra 7 155H Intel Core Ultra 7 155H
16C 22T @ 4.80 GHz
1772
Intel Core i7-1255U Intel Core i7-1255U
10C 12T @ 4.70 GHz
1761
AMD Ryzen 7 PRO 8840HS AMD Ryzen 7 PRO 8840HS
8C 16T @ 5.10 GHz
1757
AMD Ryzen 7 PRO 8845HS AMD Ryzen 7 PRO 8845HS
8C 16T @ 5.10 GHz
1757
AMD Ryzen 7 8840H AMD Ryzen 7 8840H
8C 16T @ 5.10 GHz
1757

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.
AMD Ryzen 5 5625U AMD Ryzen 5 5625U
6C 12T @ 3.40 GHz
7833
Apple M1 Apple M1
8C 8T @ 3.20 GHz
7759
Apple M1 (7-GPU) Apple M1 (7-GPU)
8C 8T @ 3.20 GHz
7759
Intel Core i7-1255U Intel Core i7-1255U
10C 12T @ 2.70 GHz
7545
Intel Core i7-10850H Intel Core i7-10850H
6C 12T @ 3.40 GHz
7455
Intel Core i7-10750H Intel Core i7-10750H
6C 12T @ 3.20 GHz
7255
AMD Ryzen 5 PRO 5650U AMD Ryzen 5 PRO 5650U
6C 12T @ 3.60 GHz
7183

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.
Intel Core Ultra 5 125U Intel Core Ultra 5 125U
12C 14T @ 4.30 GHz
2148
Intel Pentium Gold 8505 Intel Pentium Gold 8505
5C 6T @ 4.40 GHz
2146
Intel Xeon W-11855M Intel Xeon W-11855M
6C 12T @ 4.90 GHz
2142
Intel Core i7-1255U Intel Core i7-1255U
10C 12T @ 4.70 GHz
2136
Intel Core Ultra 5 235U Intel Core Ultra 5 235U
12C 14T @ 4.90 GHz
2132
Intel Core i9-11950H Intel Core i9-11950H
8C 16T @ 5.00 GHz
2129
Intel Core i9-11980HK Intel Core i9-11980HK
8C 16T @ 5.00 GHz
2129

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.
AMD Ryzen 7 5800U AMD Ryzen 7 5800U
8C 16T @ 3.40 GHz
6967
Intel Core i7-10875H Intel Core i7-10875H
8C 16T @ 3.20 GHz
6960
Intel Core i9-9980HK Intel Core i9-9980HK
8C 16T @ 3.40 GHz
6927
Intel Core i7-1255U Intel Core i7-1255U
10C 12T @ 2.70 GHz
6908
AMD Ryzen 9 5900HS AMD Ryzen 9 5900HS
8C 16T @ 4.00 GHz
6886
Intel Core i9-10880H Intel Core i9-10880H
8C 16T @ 2.30 GHz
6879
Intel Core i7-10870H Intel Core i7-10870H
8C 16T @ 3.10 GHz
6822

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.
Intel Core i7-1260P Intel Core i7-1260P
12C 16T @ 4.70 GHz
1607
Intel Core i7-12700H Intel Core i7-12700H
14C 20T @ 4.70 GHz
1607
Intel Core i7-12700HL Intel Core i7-12700HL
14C 20T @ 4.70 GHz
1607
Intel Core i7-1255U Intel Core i7-1255U
10C 12T @ 4.70 GHz
1603
Intel Core i9-11900H Intel Core i9-11900H
8C 16T @ 4.90 GHz
1599
Intel Core i7-1260U Intel Core i7-1260U
10C 12T @ 4.70 GHz
1596
Intel Core i7-1250U Intel Core i7-1250U
10C 12T @ 4.70 GHz
1596

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.
Apple M1 Apple M1
8C 8T @ 3.20 GHz
7650
Apple M1 (7-GPU) Apple M1 (7-GPU)
8C 8T @ 3.20 GHz
7650
AMD Ryzen 7 5700U AMD Ryzen 7 5700U
8C 16T @ 3.30 GHz
7640
Intel Core i7-1255U Intel Core i7-1255U
10C 12T @ 2.70 GHz
7612
AMD Ryzen 7 4800HS AMD Ryzen 7 4800HS
8C 16T @ 3.80 GHz
7608
Intel Core i7-10875H Intel Core i7-10875H
8C 16T @ 3.20 GHz
7576
Intel Core i7-10870H Intel Core i7-10870H
8C 16T @ 3.10 GHz
7451

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.
Intel Core i7-12700H Intel Core i7-12700H
14C 20T @ 4.70 GHz
694
AMD Ryzen 7 8745HS AMD Ryzen 7 8745HS
8C 16T @ 4.90 GHz
655
Intel Core i5-1335U Intel Core i5-1335U
10C 12T @ 4.60 GHz
652
Intel Core i7-1255U Intel Core i7-1255U
10C 12T @ 4.70 GHz
649
AMD Ryzen 9 6980HX AMD Ryzen 9 6980HX
8C 16T @ 5.00 GHz
649
AMD Ryzen 9 6980HS AMD Ryzen 9 6980HS
8C 16T @ 5.00 GHz
649
AMD Ryzen 9 6900HX AMD Ryzen 9 6900HX
8C 16T @ 4.90 GHz
642

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.
Intel Core i5-1235U Intel Core i5-1235U
10C 12T @ 2.50 GHz
3321
AMD Ryzen 9 4900U AMD Ryzen 9 4900U
8C 16T @ 3.40 GHz
3292
AMD Ryzen 5 4600H AMD Ryzen 5 4600H
6C 12T @ 4.00 GHz
3247
Intel Core i7-1255U Intel Core i7-1255U
10C 12T @ 2.70 GHz
3009
AMD Ryzen 7 PRO 4750U AMD Ryzen 7 PRO 4750U
8C 16T @ 3.10 GHz
3007
Intel Core i7-10850H Intel Core i7-10850H
6C 12T @ 3.40 GHz
2839
Intel Core i7-10750H Intel Core i7-10750H
6C 12T @ 3.20 GHz
2732

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.
AMD Ryzen 7 5700U AMD Ryzen 7 5700U
AMD Radeon RX Vega 8 (Renoir) @ 1.90 GHz
1946
Intel Core Ultra 7 155U Intel Core Ultra 7 155U
Intel Iris Xe 4 Core Graphics 64 EUs (Meteor Lake) @ 1.95 GHz
1935
Intel Core i7-1165G7 Intel Core i7-1165G7
Intel Iris Xe Graphics 96 (Tiger Lake) @ 1.30 GHz
1933
Intel Core i7-1255U Intel Core i7-1255U
Intel Iris Xe Graphics 96 (Alder Lake) @ 1.25 GHz
1916
Intel Core i7-1265U Intel Core i7-1265U
Intel Iris Xe Graphics 96 (Alder Lake) @ 1.25 GHz
1916
Intel Core i7-1265UL Intel Core i7-1265UL
Intel Iris Xe Graphics 96 (Alder Lake) @ 1.25 GHz
1916
Intel Core i7-1255UL Intel Core i7-1255UL
Intel Iris Xe Graphics 96 (Alder Lake) @ 1.25 GHz
1916

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.
Intel Core i7-1265UL Intel Core i7-1265UL
10C 12T @ 3.40 GHz
14325
Intel Core i3-1220P Intel Core i3-1220P
10C 12T @ 2.70 GHz
14265
Intel Core i9-9880H Intel Core i9-9880H
8C 16T @ 3.40 GHz
13961
Intel Core i7-1255U Intel Core i7-1255U
10C 12T @ 2.70 GHz
13905
Intel Core i5-1235U Intel Core i5-1235U
10C 12T @ 2.50 GHz
13681
AMD Ryzen 5 4680U AMD Ryzen 5 4680U
6C 12T @ 2.20 GHz
13521
AMD Ryzen 7 4700U AMD Ryzen 7 4700U
8C 8T @ 3.40 GHz
13510

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.
Intel Core i9-11900KB Intel Core i9-11900KB
8C 16T @ 5.30 GHz
256
AMD Ryzen 9 6900HS AMD Ryzen 9 6900HS
8C 16T @ 4.60 GHz
252
AMD Ryzen 9 5980HS AMD Ryzen 9 5980HS
8C 16T @ 4.80 GHz
247
Intel Core i7-1255U Intel Core i7-1255U
10C 12T @ 4.70 GHz
245
AMD Ryzen 7 6800U AMD Ryzen 7 6800U
8C 16T @ 4.70 GHz
237
AMD Ryzen 7 5800H AMD Ryzen 7 5800H
8C 16T @ 4.40 GHz
235
Intel Core i7-1260P Intel Core i7-1260P
12C 16T @ 4.70 GHz
235

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.
AMD Ryzen 5 PRO 6650U AMD Ryzen 5 PRO 6650U
6C 12T @ 3.80 GHz
1546
Intel Core i9-9880H Intel Core i9-9880H
8C 16T @ 3.40 GHz
1535
Intel Core i7-10870H Intel Core i7-10870H
8C 16T @ 3.10 GHz
1522
Intel Core i7-1255U Intel Core i7-1255U
10C 12T @ 2.70 GHz
1498
AMD Ryzen 5 4600H AMD Ryzen 5 4600H
6C 12T @ 4.00 GHz
1464
AMD Ryzen 5 7530U AMD Ryzen 5 7530U
6C 12T @ 3.00 GHz
1442
AMD Ryzen 5 PRO 7530U AMD Ryzen 5 PRO 7530U
6C 12T @ 3.00 GHz
1442

Benchmarks


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.



Popular comparisons

1. Intel Core i5-1235U Intel Core i7-1255U Intel Core i5-1235U vs Intel Core i7-1255U
2. Intel Core i7-1260P Intel Core i7-1255U Intel Core i7-1260P vs Intel Core i7-1255U
3. AMD Ryzen 7 5825U Intel Core i7-1255U AMD Ryzen 7 5825U vs Intel Core i7-1255U
4. Intel Core i7-1165G7 Intel Core i7-1255U Intel Core i7-1165G7 vs Intel Core i7-1255U
5. Intel Core i7-1255U AMD Ryzen 7 5700U Intel Core i7-1255U vs AMD Ryzen 7 5700U
6. AMD Ryzen 7 7730U Intel Core i7-1255U AMD Ryzen 7 7730U vs Intel Core i7-1255U
7. Intel Core i7-1255U Intel Core i7-1355U Intel Core i7-1255U vs Intel Core i7-1355U
8. Intel Core i7-1255U Intel Core i7-12700H Intel Core i7-1255U vs Intel Core i7-12700H
9. Intel Core i5-1240P Intel Core i7-1255U Intel Core i5-1240P vs Intel Core i7-1255U
10. Intel Core i5-12500H Intel Core i7-1255U Intel Core i5-12500H vs Intel Core i7-1255U


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