AMD Ryzen 7 7840HS | MediaTek Dimensity 820 | |
CPU comparisonAMD Ryzen 7 7840HS or MediaTek Dimensity 820 - 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 AMD Ryzen 7 7840HS has 8 cores with 16 threads and clocks with a maximum frequency of 5.10 GHz. Up to 256 GB of memory is supported in 2 memory channels. The AMD Ryzen 7 7840HS was released in Q1/2023. The MediaTek Dimensity 820 has 8 cores with 8 threads and clocks with a maximum frequency of 2.60 GHz. The CPU supports up to 16 GB of memory in 2 memory channels. The MediaTek Dimensity 820 was released in Q2/2020. |
||
AMD Ryzen 7 (70) | Family | Mediatek Dimensity (36) |
AMD Ryzen 7040 (21) | CPU group | MediaTek Dimensity 820 (1) |
6 | Generation | 1 |
Phoenix (Zen 4) | Architecture | Cortex-A76 / Cortex-A55 |
Mobile | Segment | Mobile |
-- | Predecessor | -- |
AMD Ryzen 7 8840HS | Successor | -- |
|
||
CPU Cores and Base FrequencyThe AMD Ryzen 7 7840HS has 8 CPU cores and can calculate 16 threads in parallel. The clock frequency of the AMD Ryzen 7 7840HS is 3.80 GHz (5.10 GHz) while the MediaTek Dimensity 820 has 8 CPU cores and 8 threads can calculate simultaneously. The clock frequency of the MediaTek Dimensity 820 is at 2.60 GHz. |
||
AMD Ryzen 7 7840HS | Characteristic | MediaTek Dimensity 820 |
8 | Cores | 8 |
16 | Threads | 8 |
normal | Core architecture | hybrid (big.LITTLE) |
Yes | Hyperthreading | No |
No | Overclocking ? | No |
3.80 GHz (5.10 GHz) 8x Zen 4 |
A-Core | 2.60 GHz 4x Cortex-A76 |
-- | B-Core | 2.00 GHz 4x Cortex-A55 |
NPU AI performanceThe 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. |
||
AMD Ryzen 7 7840HS | Characteristic | MediaTek Dimensity 820 |
AMD Ryzen™ AI | AI hardware | -- |
AMD dedicated AI XDNA Technology | AI specifications | -- |
-- | NPU + CPU + iGPU | -- |
Integrated graphics (iGPU)The AMD Ryzen 7 7840HS or MediaTek Dimensity 820 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. |
||
AMD Radeon 780M | GPU | ARM Mali-G57 MP5 |
0.80 GHz | GPU frequency | 0.90 GHz |
2.70 GHz | GPU (Turbo) | -- |
3 | GPU Generation | Vallhall 1 |
4 nm | Technology | 7 nm |
4 | Max. displays | 2 |
12 | Compute units | 5 |
768 | Shader | 80 |
Yes | Hardware Raytracing | No |
AMD FSR | Frame Generation | No |
32 GB | Max. GPU Memory | 4 GB |
12 | DirectX Version | 12 |
Hardware codec supportA 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. |
||
AMD Radeon 780M | GPU | ARM Mali-G57 MP5 |
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 | Codec VP9 | Decode / Encode |
Decode | Codec VP8 | Decode / Encode |
Decode / Encode | Codec AV1 | Decode |
Decode | Codec AVC | Decode / Encode |
Decode | Codec VC-1 | Decode / Encode |
Decode / Encode | Codec JPEG | Decode / Encode |
Memory & PCIeThe AMD Ryzen 7 7840HS can use up to 256 GB of memory in 2 memory channels. The maximum memory bandwidth is 120.0 GB/s. The MediaTek Dimensity 820 supports up to 16 GB of memory in 2 memory channels and achieves a memory bandwidth of up to 17.2 GB/s. |
||
AMD Ryzen 7 7840HS | Characteristic | MediaTek Dimensity 820 |
DDR5-4800, DDR5-5600, LPDDR5-6400, LPDDR5X-7500 | Memory | LPDDR4X-4266 |
256 GB | Max. Memory | 16 GB |
2 (Dual Channel) | Memory channels | 2 (Dual Channel) |
120.0 GB/s | Max. Bandwidth | 17.2 GB/s |
Yes | ECC | No |
8.00 MB | L2 Cache | -- |
16.00 MB | L3 Cache | -- |
4.0 | PCIe version | -- |
20 | PCIe lanes | -- |
39.4 GB/s | PCIe Bandwidth | -- |
Thermal ManagementThe thermal design power (TDP for short) of the AMD Ryzen 7 7840HS is 54 W, while the MediaTek Dimensity 820 has a TDP of --. The TDP specifies the necessary cooling solution that is required to cool the processor sufficiently. |
||
AMD Ryzen 7 7840HS | Characteristic | MediaTek Dimensity 820 |
54 W | TDP (PL1 / PBP) | -- |
-- | TDP (PL2) | -- |
60 W | TDP up | -- |
35 W | TDP down | -- |
100 °C | Tjunction max. | -- |
Technical detailsThe AMD Ryzen 7 7840HS is manufactured in 4 nm and has 24.00 MB cache. The MediaTek Dimensity 820 is manufactured in 7 nm and has a 0.00 MB cache. |
||
AMD Ryzen 7 7840HS | Characteristic | MediaTek Dimensity 820 |
4 nm | Technology | 7 nm |
Monolithic | Chip design | Chiplet |
x86-64 (64 bit) | Instruction set (ISA) | Armv8-A (64 bit) |
SSE4a, SSE4.1, SSE4.2,FMA3, AVX2, AVX512 | ISA extensions | -- |
FP8 | Socket | -- |
AMD-V, SVM | Virtualization | None |
Yes | AES-NI | No |
Windows 10, Windows 11, Linux | Operating systems | Android |
Q1/2023 | Release date | Q2/2020 |
-- | Release price | -- |
show more data | show more data | |
AMD Ryzen 7 7840HS
8C 16T @ 5.10 GHz |
|||
MediaTek Dimensity 820
8C 8T @ 2.60 GHz |
AMD Ryzen 7 7840HS
8C 16T @ 4.25 GHz |
|||
MediaTek Dimensity 820
8C 8T @ 2.60 GHz |
AMD Ryzen 7 7840HS
8C 16T @ 5.10 GHz |
|||
MediaTek Dimensity 820
8C 8T @ 2.60 GHz |
AMD Ryzen 7 7840HS
8C 16T @ 4.25 GHz |
|||
MediaTek Dimensity 820
8C 8T @ 2.60 GHz |
AMD Ryzen 7 7840HS
AMD Radeon 780M @ 2.70 GHz |
|||
MediaTek Dimensity 820
ARM Mali-G57 MP5 @ 0.90 GHz |
AMD Ryzen 7 7840HS
8C 16T @ 4.25 GHz |
|||
MediaTek Dimensity 820
8C 8T @ 2.60 GHz |
AMD Ryzen 7 7840HS
8C 16T @ 5.10 GHz |
|||
MediaTek Dimensity 820
8C 8T @ 2.60 GHz |
AMD Ryzen 7 7840HS
8C 16T @ 5.10 GHz |
|||
MediaTek Dimensity 820
8C 8T @ 2.60 GHz |
AMD Ryzen 7 7840HS
8C 16T @ 5.10 GHz |
|||
MediaTek Dimensity 820
8C 8T @ 2.60 GHz |
AMD Ryzen 7 7840HS
8C 16T @ 4.25 GHz |
|||
MediaTek Dimensity 820
8C 8T @ 2.60 GHz |
AMD Ryzen 7 7840HS
8C 16T @ 3.80 GHz |
|||
MediaTek Dimensity 820
8C 8T @ 2.60 GHz |
AMD Ryzen 7 7840HS
8C 16T @ 3.80 GHz |
|||
MediaTek Dimensity 820
8C 8T @ 2.60 GHz |
AMD Ryzen 7 7840HS
8C 16T @ 5.10 GHz |
|||
MediaTek Dimensity 820
8C 8T @ 2.60 GHz |
AMD Ryzen 7 7840HS
8C 16T @ 3.80 GHz |
|||
MediaTek Dimensity 820
8C 8T @ 2.60 GHz |
AMD Ryzen 7 7840HS
15,930 CB R23 MC @ 55 W |
|||
MediaTek Dimensity 820
2.60 GHz |
AMD Ryzen 7 7840HS
8C 16T @ 3.80 GHz |
|||
MediaTek Dimensity 820
8C 8T @ 2.60 GHz |
Devices using this processor |
|
AMD Ryzen 7 7840HS | MediaTek Dimensity 820 |
Lenovo IdeaPad Pro 5 14 Lenovo IdeaPad Pro 5 16 |
Unknown |