Intel Core i7-1355U vs MediaTek Dimensity 800U

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CPU comparison with benchmarks


Intel Core i7-1355U CPU1 vs CPU2 MediaTek Dimensity 800U
Intel Core i7-1355U MediaTek Dimensity 800U

CPU comparison

Intel Core i7-1355U or MediaTek Dimensity 800U - 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 i7-1355U has 10 cores with 12 threads and clocks with a maximum frequency of 5.00 GHz. Up to 96 GB of memory is supported in 2 memory channels. The Intel Core i7-1355U was released in Q1/2023.

The MediaTek Dimensity 800U has 8 cores with 8 threads and clocks with a maximum frequency of 2.40 GHz. The CPU supports up to 12 GB of memory in 2 memory channels. The MediaTek Dimensity 800U was released in Q3/2020.
Intel Core i7 (298) Family Mediatek Dimensity (36)
Intel Core i 1300P/1300U (29) CPU group MediaTek Dimensity 700/720/800 (4)
13 Generation 1
Raptor Lake U Architecture Cortex-A76 / Cortex-A55
Mobile Segment Mobile
Intel Core i7-1255U Predecessor --
-- Successor --

CPU Cores and Base Frequency

The Intel Core i7-1355U is a 10 core processor with a clock frequency of 1.70 GHz (5.00 GHz). The MediaTek Dimensity 800U has 8 CPU cores with a clock frequency of 2.40 GHz.

Intel Core i7-1355U Characteristic MediaTek Dimensity 800U
10 Cores 8
12 Threads 8
hybrid (big.LITTLE) Core architecture hybrid (big.LITTLE)
Yes Hyperthreading No
No Overclocking ? No
1.70 GHz (5.00 GHz)
2x Raptor Cove
A-Core 2.40 GHz
2x Cortex-A76
1.20 GHz (3.70 GHz)
8x Gracemont
B-Core 2.00 GHz
6x Cortex-A55

NPU AI performance

The performance values of the processor's AI unit. The isolated NPU performance is specified here, the total AI performance (NPU+CPU+iGPU) can be higher. Processors with support for artificial intelligence (AI) and machine learning (ML) can process many calculations, especially audio, image and video processing, much faster than classic processors.

Intel Core i7-1355U Characteristic MediaTek Dimensity 800U
-- AI hardware --
-- AI specifications --
-- NPU + CPU + iGPU --

Integrated graphics (iGPU)

The integrated graphics unit of a processor is not only responsible for the pure image output on the system, but can also significantly increase the efficiency of the system with the support of modern video codecs.

Intel Iris Xe Graphics 96 (Alder Lake) GPU ARM Mali-G57 MP3
0.35 GHz GPU frequency 0.95 GHz
1.30 GHz GPU (Turbo) --
13 GPU Generation Vallhall 1
10 nm Technology 7 nm
4 Max. displays 2
96 Compute units 3
768 Shader 48
No Hardware Raytracing No
No Frame Generation No
32 GB Max. GPU Memory 4 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 ARM Mali-G57 MP3
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 / Encode
Decode Codec AV1 Decode
Decode / Encode Codec AVC Decode / Encode
Decode Codec VC-1 Decode / Encode
Decode / Encode Codec JPEG Decode / Encode

Memory & PCIe

The Intel Core i7-1355U supports a maximum of 96 GB of memory in 2 memory channels. The MediaTek Dimensity 800U can connect up to 12 GB of memory in 2 memory channels.

Intel Core i7-1355U Characteristic MediaTek Dimensity 800U
LPDDR5-6400, LPDDR4X-4266, DDR5-5200, DDR4-3200 Memory LPDDR4X-4266
96 GB Max. Memory 12 GB
2 (Dual Channel) Memory channels 2 (Dual Channel)
102.4 GB/s Max. Bandwidth 17.1 GB/s
No ECC No
-- L2 Cache --
12.00 MB L3 Cache --
4.0 PCIe version --
20 PCIe lanes --
39.4 GB/s PCIe Bandwidth --

Thermal Management

The TDP (Thermal Design Power) of a processor specifies the required cooling solution. The Intel Core i7-1355U has a TDP of 15 W, that of the MediaTek Dimensity 800U is --.

Intel Core i7-1355U Characteristic MediaTek Dimensity 800U
15 W TDP (PL1 / PBP) --
55 W TDP (PL2) --
-- TDP up --
12 W TDP down --
100 °C Tjunction max. --

Technical details

The Intel Core i7-1355U has a 12.00 MB cache, while the MediaTek Dimensity 800U cache has a total of 0.00 MB.

Intel Core i7-1355U Characteristic MediaTek Dimensity 800U
10 nm Technology 7 nm
Monolithic Chip design Chiplet
x86-64 (64 bit) Instruction set (ISA) Armv8-A (64 bit)
SSE4.1, SSE4.2, AVX2 ISA extensions --
BGA 1744 Socket --
VT-x, VT-x EPT, VT-d Virtualization None
Yes AES-NI No
Windows 10, Windows 11, Linux Operating systems Android
Q1/2023 Release date Q3/2020
-- Release price --
show more data show more data


Rate these processors

Here you can rate the Intel Core i7-1355U to help other visitors make their purchasing decisions. The average rating is 3.9 stars (31 ratings). Rate now:
Here you can rate the MediaTek Dimensity 800U to help other visitors make their purchasing decisions. The average rating is 0 stars (0 ratings). Rate now:


Average performance in benchmarks

⌀ Single core performance in 2 CPU benchmarks
Intel Core i7-1355U (100%)
MediaTek Dimensity 800U (33%)
⌀ Multi core performance in 3 CPU benchmarks
Intel Core i7-1355U (100%)
MediaTek Dimensity 800U (24%)

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 i7-1355U Intel Core i7-1355U
10C 12T @ 5.00 GHz
1703 (100%)
MediaTek Dimensity 800U MediaTek Dimensity 800U
8C 8T @ 2.40 GHz
593 (35%)

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 i7-1355U Intel Core i7-1355U
10C 12T @ 1.70 GHz
7451 (100%)
MediaTek Dimensity 800U MediaTek Dimensity 800U
8C 8T @ 2.40 GHz
1783 (24%)

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 i7-1355U Intel Core i7-1355U
10C 12T @ 5.00 GHz
2458 (100%)
MediaTek Dimensity 800U MediaTek Dimensity 800U
8C 8T @ 2.40 GHz
753 (31%)

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 i7-1355U Intel Core i7-1355U
10C 12T @ 1.70 GHz
7122 (100%)
MediaTek Dimensity 800U MediaTek Dimensity 800U
8C 8T @ 2.40 GHz
1882 (26%)

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 i7-1355U Intel Core i7-1355U
Intel Iris Xe Graphics 96 (Alder Lake) @ 1.30 GHz
1993 (100%)
MediaTek Dimensity 800U MediaTek Dimensity 800U
ARM Mali-G57 MP3 @ 0.95 GHz
365 (18%)

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 i7-1355U Intel Core i7-1355U
10C 12T @ 1.70 GHz
15630 (100%)
MediaTek Dimensity 800U MediaTek Dimensity 800U
8C 8T @ 2.40 GHz
3621 (23%)

Cinebench 2024 (Single-Core)

The Cinebench 2024 benchmark is based on the Redshift rendering engine, which is also used in Maxon's 3D program Cinema 4D. The benchmark runs are each 10 minutes long to test whether the processor is limited by its heat generation.
Intel Core i7-1355U Intel Core i7-1355U
10C 12T @ 5.00 GHz
91 (100%)
MediaTek Dimensity 800U MediaTek Dimensity 800U
8C 8T @ 2.40 GHz
0 (0%)

Cinebench 2024 (Multi-Core)

The Multi-Core test of the Cinebench 2024 benchmark uses all cpu cores to render using the Redshift rendering engine, which is also used in Maxons Cinema 4D. The benchmark run is 10 minutes long to test whether the processor is limited by its heat generation.
Intel Core i7-1355U Intel Core i7-1355U
10C 12T @ 5.00 GHz
287 (100%)
MediaTek Dimensity 800U MediaTek Dimensity 800U
8C 8T @ 2.40 GHz
0 (0%)

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 i7-1355U Intel Core i7-1355U
10C 12T @ 5.00 GHz
1819 (100%)
MediaTek Dimensity 800U MediaTek Dimensity 800U
8C 8T @ 2.40 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 i7-1355U Intel Core i7-1355U
10C 12T @ 1.70 GHz
9687 (100%)
MediaTek Dimensity 800U MediaTek Dimensity 800U
8C 8T @ 2.40 GHz
0 (0%)

AnTuTu 9 Benchmark

The AnTuTu 9 benchmark is very well suited to measuring the performance of a smartphone. AnTuTu 9 is quite heavy on 3D graphics and can now also use the "Metal" graphics interface. In AnTuTu, memory and UX (user experience) are also tested by simulating browser and app usage. AnTuTu version 9 can compare any ARM CPU running on Android or iOS. Devices may not be directly comparable when benchmarked on different operating systems.

In the AnTuTu 9 benchmark, the single-core performance of a processor is only slightly weighted. The rating is made up of the multi-core performance of the processor, the speed of the working memory, and the performance of the internal graphics.
Intel Core i7-1355U Intel Core i7-1355U
10C 12T @ 1.70 GHz
0 (0%)
MediaTek Dimensity 800U MediaTek Dimensity 800U
8C 8T @ 2.40 GHz
368465 (100%)

AnTuTu 8 Benchmark

The AnTuTu 8 Benchmark measures the performance of a SoC. AnTuTu benchmarks the CPU, GPU, Memory as well as the UX (User Experience) by simulating browser and app usage. AnTuTu can benchmark any ARM CPU that runs under Android or iOS. Devices may not be directly compareable if the benchmark has been performed under different operating systems.

In the AnTuTu 8 benchmark, the single-core performance of a processor is only slightly weighted. The evaluation consists of the multi-core performance of the processor, the speed of the RAM and the performance of the internal graphics.
Intel Core i7-1355U Intel Core i7-1355U
10C 12T @ 1.70 GHz
0 (0%)
MediaTek Dimensity 800U MediaTek Dimensity 800U
8C 8T @ 2.40 GHz
334689 (100%)

CPU performance per watt (efficiency)

Efficiency of the processor under full load in the Cinebench R23 (multi-core) benchmark. The benchmark result is divided by the average energy required (CPU package power in watts). The higher the value, the more efficient the CPU is under full load.
Intel Core i7-1355U Intel Core i7-1355U
9,687 CB R23 MC @ 52 W
187 (100%)
MediaTek Dimensity 800U MediaTek Dimensity 800U
2.40 GHz
0 (0%)

Devices using this processor

Intel Core i7-1355U MediaTek Dimensity 800U
Unknown Unknown

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