Intel Core i7-1255U vs Intel Core i7-12650H

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CPU comparison with benchmarks


Intel Core i7-1255U CPU1 vs CPU2 Intel Core i7-12650H
Intel Core i7-1255U Intel Core i7-12650H

CPU comparison

Intel Core i7-1255U or Intel Core i7-12650H - which processor is faster? In this comparison we look at the differences and analyze which of these two CPUs is better. We compare the technical data and benchmark results.

The Intel Core i7-1255U has 10 cores with 12 threads and clocks with a maximum frequency of 4.70 GHz. Up to 64 GB of memory is supported in 2 memory channels. The Intel Core i7-1255U was released in Q1/2022.

The Intel Core i7-12650H has 10 cores with 16 threads and clocks with a maximum frequency of 4.70 GHz. The CPU supports up to 64 GB of memory in 2 memory channels. The Intel Core i7-12650H was released in Q1/2022.
Intel Core i7 (293) Family Intel Core i7 (293)
Intel Core i 1200P/1200U (21) CPU group Intel Core i 12000H (23)
12 Generation 12
Alder Lake U Architecture Alder Lake H
Mobile Segment Mobile
-- Predecessor --
Intel Core i7-1355U Successor --

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) while the Intel Core i7-12650H has 10 CPU cores and 16 threads can calculate simultaneously. The clock frequency of the Intel Core i7-12650H is at 2.30 GHz (4.70 GHz).

Intel Core i7-1255U Characteristic Intel Core i7-12650H
10 Cores 10
12 Threads 16
hybrid (big.LITTLE) Core architecture hybrid (big.LITTLE)
Yes Hyperthreading Yes
No Overclocking ? No
1.70 GHz (4.70 GHz)
2x Golden Cove
A-Core 2.30 GHz (4.70 GHz)
6x Golden Cove
1.20 GHz (3.50 GHz)
8x Gracemont
B-Core 1.70 GHz (3.50 GHz)
4x Gracemont

Artificial Intelligence and Machine Learning

Processors with the support of artificial intelligence (AI) and machine learning (ML) can process many calculations, especially audio, image and video processing, much faster than classic processors. Algorithms for ML improve their performance the more data they have collected via software. ML tasks can be processed up to 10,000 times faster than with a classic processor.

Intel Core i7-1255U Characteristic Intel Core i7-12650H
-- AI hardware --
-- AI specifications --

Internal Graphics

The Intel Core i7-1255U or Intel Core i7-12650H 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.

Intel Iris Xe Graphics 96 (Alder Lake) GPU Intel UHD Graphics 12th Gen (64 EU)
0.35 GHz GPU frequency 0.40 GHz
1.25 GHz GPU (Turbo) 1.40 GHz
13 GPU Generation 12
10 nm Technology 10 nm
4 Max. displays 3
96 Compute units 48
768 Shader 512
No Hardware Raytracing No
No Frame Generation No
32 GB Max. GPU Memory 64 GB
12.1 DirectX Version 12

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.

Intel Iris Xe Graphics 96 (Alder Lake) GPU Intel UHD Graphics 12th Gen (64 EU)
Decode / Encode Codec h265 / HEVC (8 bit) Decode / Encode
Decode / Encode Codec h265 / HEVC (10 bit) Decode / Encode
Decode / Encode Codec h264 Decode / Encode
Decode / Encode Codec VP9 Decode / Encode
Decode Codec VP8 Decode
Decode Codec AV1 Decode
Decode / Encode Codec AVC Decode / Encode
Decode Codec VC-1 Decode
Decode / Encode Codec JPEG Decode / Encode

Memory & PCIe

The Intel Core i7-1255U can use up to 64 GB of memory in 2 memory channels. The maximum memory bandwidth is 83.2 GB/s. The Intel Core i7-12650H supports up to 64 GB of memory in 2 memory channels and achieves a memory bandwidth of up to 83.2 GB/s.

Intel Core i7-1255U Characteristic Intel Core i7-12650H
LPDDR5-5200, LPDDR4X-4266, DDR5-4800, DDR4-3200 Memory LPDDR5-5200, LPDDR4X-4266, DDR5-4800, DDR4-3200
64 GB Max. Memory 64 GB
2 (Dual Channel) Memory channels 2 (Dual Channel)
83.2 GB/s Max. Bandwidth 83.2 GB/s
No ECC No
6.50 MB L2 Cache 9.50 MB
12.00 MB L3 Cache 24.00 MB
4.0 PCIe version 4.0
28 PCIe lanes 20
55.1 GB/s PCIe Bandwidth 39.4 GB/s

Thermal Management

The thermal design power (TDP for short) of the Intel Core i7-1255U is 15 W, while the Intel Core i7-12650H has a TDP of 45 W. The TDP specifies the necessary cooling solution that is required to cool the processor sufficiently.

Intel Core i7-1255U Characteristic Intel Core i7-12650H
15 W TDP (PL1 / PBP) 45 W
55 W TDP (PL2) 115 W
-- TDP up --
-- TDP down --
100 °C Tjunction max. 100 °C

Technical details

The Intel Core i7-1255U is manufactured in 10 nm and has 18.50 MB cache. The Intel Core i7-12650H is manufactured in 10 nm and has a 33.50 MB cache.

Intel Core i7-1255U Characteristic Intel Core i7-12650H
10 nm Technology 10 nm
Monolithic Chip design Monolithic
x86-64 (64 bit) Instruction set (ISA) x86-64 (64 bit)
SSE4.1, SSE4.2, AVX2 ISA extensions SSE4.1, SSE4.2, AVX2, AVX2+
BGA 1744 Socket BGA 1744
VT-x, VT-x EPT, VT-d Virtualization VT-x, VT-x EPT, VT-d
Yes AES-NI Yes
Windows 10, Windows 11, Linux Operating systems Windows 10, Windows 11, Linux
Q1/2022 Release date Q1/2022
-- Release price 457 $
show more data show more data


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Here you can rate the Intel Core i7-1255U to help other visitors make their purchasing decisions. The average rating is 3.5 stars (4 ratings). Rate now:
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Average performance in benchmarks

⌀ Single core performance in 2 CPU benchmarks
⌀ Multi core performance in 3 CPU benchmarks

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 i7-1255U Intel Core i7-1255U
10C 12T @ 4.70 GHz
1603 (90%)
Intel Core i7-12650H Intel Core i7-12650H
10C 16T @ 4.70 GHz
1780 (100%)

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.
Intel Core i7-1255U Intel Core i7-1255U
10C 12T @ 2.70 GHz
7612 (70%)
Intel Core i7-12650H Intel Core i7-12650H
10C 16T @ 3.80 GHz
10920 (100%)

Geekbench 6 (Single-Core)

Geekbench 6 is a benchmark for modern computers, notebooks and smartphones. What is new is an optimized utilization of newer CPU architectures, e.g. based on the big.LITTLE concept and combining CPU cores of different sizes. The single-core benchmark only evaluates the performance of the fastest CPU core, the number of CPU cores in a processor is irrelevant here.
Intel Core i7-1255U Intel Core i7-1255U
10C 12T @ 4.70 GHz
2136 (99%)
Intel Core i7-12650H Intel Core i7-12650H
10C 16T @ 4.70 GHz
2157 (100%)

Geekbench 6 (Multi-Core)

Geekbench 6 is a benchmark for modern computers, notebooks and smartphones. What is new is an optimized utilization of newer CPU architectures, e.g. based on the big.LITTLE concept and combining CPU cores of different sizes. The multi-core benchmark evaluates the performance of all of the processor's CPU cores. Virtual thread improvements such as AMD SMT or Intel's Hyper-Threading have a positive impact on the benchmark result.
Intel Core i7-1255U Intel Core i7-1255U
10C 12T @ 2.70 GHz
6908 (66%)
Intel Core i7-12650H Intel Core i7-12650H
10C 16T @ 3.80 GHz
10411 (100%)

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.
Intel Core i7-1255U Intel Core i7-1255U
Intel Iris Xe Graphics 96 (Alder Lake) @ 1.25 GHz
1916 (100%)
Intel Core i7-12650H Intel Core i7-12650H
Intel UHD Graphics 12th Gen (64 EU) @ 1.40 GHz
1434 (75%)

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 i7-1255U Intel Core i7-1255U
10C 12T @ 2.70 GHz
13905 (57%)
Intel Core i7-12650H Intel Core i7-12650H
10C 16T @ 3.80 GHz
24470 (100%)

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 i7-1255U Intel Core i7-1255U
10C 12T @ 4.70 GHz
1761 (100%)
Intel Core i7-12650H Intel Core i7-12650H
10C 16T @ 4.70 GHz
0 (0%)

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.
Intel Core i7-1255U Intel Core i7-1255U
10C 12T @ 2.70 GHz
7545 (100%)
Intel Core i7-12650H Intel Core i7-12650H
10C 16T @ 3.80 GHz
0 (0%)

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 i7-1255U Intel Core i7-1255U
10C 12T @ 4.70 GHz
649 (100%)
Intel Core i7-12650H Intel Core i7-12650H
10C 16T @ 4.70 GHz
0 (0%)

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 i7-1255U Intel Core i7-1255U
10C 12T @ 2.70 GHz
3009 (100%)
Intel Core i7-12650H Intel Core i7-12650H
10C 16T @ 3.80 GHz
0 (0%)

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 i7-1255U Intel Core i7-1255U
10C 12T @ 4.70 GHz
245 (100%)
Intel Core i7-12650H Intel Core i7-12650H
10C 16T @ 4.70 GHz
0 (0%)

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.
Intel Core i7-1255U Intel Core i7-1255U
10C 12T @ 2.70 GHz
1498 (100%)
Intel Core i7-12650H Intel Core i7-12650H
10C 16T @ 3.80 GHz
0 (0%)

Devices using this processor

Intel Core i7-1255U Intel Core i7-12650H
Unknown Unknown

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