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MediaTek Dimensity 820 vs Intel Core Ultra 7 255H
Last updated:
Benchmarks
Performance Overview
Average performance across multiple benchmarks
Single-core performance
Multi-core performance
Geekbench 6 Single-Core
Single-core performance
8C / 8T · 2.60 GHz
Intel Core Ultra 7 255H
100 %
16C / 16T · 5.10 GHz
Geekbench 6 Multi-Core
Multi-core performance
8C / 8T · 2.60 GHz
Intel Core Ultra 7 255H
100 %
16C / 16T · 2.00 GHz
iGPU - FP32 Performance (Single-precision GFLOPS)
ARM Mali-G57 MP5
Intel Core Ultra 7 255H
100 %
Intel Arc 140T
More benchmarks
Cinebench 2026 (ST)
218 entries
218 entries
Cinebench 2026 (MC)
219 entries
219 entries
Geekbench 6 (SC)
1,989 entries
1,989 entries
Geekbench 6 (MC)
1,927 entries
1,927 entries
Geekbench 5 (SC)
2,512 entries
2,512 entries
Geekbench 5 (MC)
2,483 entries
2,483 entries
FP32 SP (iGPU)
2,219 entries
2,219 entries
AnTuTu 9 Benchmark
90 entries
90 entries
AnTuTu 8 Benchmark
118 entries
118 entries
PassMark CPU-Mark
2,504 entries
2,504 entries
Specifications
At a glance
|
Wischen
|
MediaTek Dimensity 820 | Intel Core Ultra 7 255H |
|---|---|---|
| Family | Mediatek Dimensity (38) | Intel Core Ultra 7 (31) |
| CPU group | MediaTek Dimensity 820 (1) | Intel Core Ultra 200H (5) |
| Architecture | Cortex-A76 / Cortex-A55 | Arrow Lake H |
| Technology | 7 nm | 3 nm |
| Segment | Smartphone / Tablet | Notebook |
| Socket | BGA 2049 | |
| Predecessor | Intel Core Ultra 7 155H | |
| Successor | Intel Core Ultra X7 358H |
CPU Cores and Base Frequency
|
Wischen
|
MediaTek Dimensity 820 | Intel Core Ultra 7 255H |
|---|---|---|
| CPU Cores / Threads | 8 / 8 | 16 / 16 |
| Hyperthreading / SMT | ✗ | ✗ |
| Core architecture | hybrid (big.LITTLE) | hybrid (big.LITTLE) |
| Core Cluster 1: | 4x Cortex-A76 2.60 GHz |
6x Lion Cove 2.00 - 5.10 GHz |
| Core Cluster 2: | 4x Cortex-A55 2.00 GHz |
8x Skymont 1.50 - 4.40 GHz |
| Core Cluster 3: | 2x Crestmont 0.70 - 2.50 GHz |
|
| L2-Cache | 6.00 MB | |
| L3-Cache | 24.00 MB | |
| Overclocking | ✗ | ✗ |
Integrated graphics (iGPU)
|
Wischen
|
MediaTek Dimensity 820 | Intel Core Ultra 7 255H |
|---|---|---|
| GPU name | ARM Mali-G57 MP5 | Intel Arc 140T |
| GPU frequency | 0.90 GHz | 0.60 - 2.25 GHz |
| CUs / Shader | 5 / 80 | 64 / 1024 |
| Raytracing | ✗ | ✓ |
| Max. displays | 2 | 3 |
| Max. GPU Memory | 4 GB | 32 GB |
| Technology | 7 nm | 5 nm |
| Release date | Q2/2020 | Q1/2025 |
NPU AI performance
|
Wischen
|
MediaTek Dimensity 820 | Intel Core Ultra 7 255H |
|---|---|---|
| AI hardware | Intel® AI Boost | |
| AI specifications | Intel AI Boost (OpenVINO, WindowsML, DirectML, ONNX RT) | |
| NPU + CPU + iGPU | 96 TOPS |
Memory & PCIe
|
Wischen
|
MediaTek Dimensity 820 | Intel Core Ultra 7 255H |
|---|---|---|
| Memory | LPDDR4X-4266 (17.2 GB/s) | LPDDR5X-8400 (134.4 GB/s) DDR5-6400 (102.4 GB/s) |
| Max. Memory | 16 GB | 128 GB |
| Memory channels | 2 | 2 |
| ECC | No | No |
| PCIe | 5.0 x 28 | |
| PCIe Bandwidth | 110.3 GB/s |
Thermal Management
|
Wischen
|
MediaTek Dimensity 820 | Intel Core Ultra 7 255H |
|---|---|---|
| TDP | 28 W | |
| TDP (PL2) | 115 W | |
| TDP up | ||
| TDP down | 20 W | |
| T. junction max. | 110 °C |
Technical details
|
Wischen
|
MediaTek Dimensity 820 | Intel Core Ultra 7 255H |
|---|---|---|
| Chip design | Chiplet | Chiplet |
| AES-NI | ✗ | ✓ |
| Operating systems | Android | Windows 11, Linux |
| Instruction set | Armv8-A (64 bit) | x86-64 (64 bit) |
| ISA extensions | SSE4.1, SSE4.2, AVX2 | |
| Release date | Q2/2020 | Q1/2025 |
| Release price | ||
| Documents | Technical data sheet | Technical data sheet |
User Reviews
Your rating
Here you can rate one or both of the processors. The average rating of MediaTek Dimensity 820 is 5.0 stars (2 ratings), while Intel Core Ultra 7 255H has received 3.6 stars (241 ratings).
Click on the stars to rate one or both processors.
Most popular CPUs in both categories
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MediaTek Dimensity 820
8C / 8T · 0.00 GHz
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Apple M5 Max (18-CPU 32-GPU)
18C / 18T · 4.61 GHz
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Apple M2 Ultra (76-GPU)
24C / 24T · 3.50 GHz
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Apple M5 Max (18-CPU 40-GPU)
18C / 18T · 4.61 GHz
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Apple M5 Pro (15-CPU 16-GPU)
15C / 15T · 4.61 GHz
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Apple M1 Ultra (48-GPU)
20C / 20T · 3.20 GHz
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Apple M2 Ultra (60-GPU)
24C / 24T · 3.50 GHz
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Apple M1 Pro (8-CPU)
8C / 8T · 3.20 GHz
9
Intel Core Ultra 7 255H
16C / 16T · 5.10 GHz
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