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AMD Ryzen 7 7840U | Samsung Exynos 9820 | |
CPU comparisonAMD Ryzen 7 7840U or Samsung Exynos 9820 - 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 7840U 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 7840U was released in Q2/2023. The Samsung Exynos 9820 has 8 cores with 8 threads and clocks with a maximum frequency of 2.70 GHz. The CPU supports up to 12 GB of memory in 4 memory channels. The Samsung Exynos 9820 was released in Q1/2019. |
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AMD Ryzen 7 (70) | Family | Samsung Exynos (47) |
AMD Ryzen 7040 (21) | CPU group | Samsung Exynos 9820 (1) |
6 | Generation | 3 |
Phoenix (Zen 4) | Architecture | Exynos M4/Cortex-A75/-A55 |
Mobile | Segment | Mobile |
-- | Predecessor | -- |
AMD Ryzen 7 8840U | Successor | -- |
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CPU Cores and Base FrequencyThe AMD Ryzen 7 7840U is a 8 core processor with a clock frequency of 3.30 GHz (5.10 GHz). The Samsung Exynos 9820 has 8 CPU cores with a clock frequency of 2.70 GHz. |
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AMD Ryzen 7 7840U | Characteristic | Samsung Exynos 9820 |
8 | Cores | 8 |
16 | Threads | 8 |
normal | Core architecture | hybrid (Prime / big.LITTLE) |
Yes | Hyperthreading | No |
No | Overclocking ? | No |
3.30 GHz (5.10 GHz) 8x Zen 4 |
A-Core | 2.70 GHz 2x Exynos M4 |
-- | B-Core | 2.30 GHz 2x Cortex-A75 |
-- | C-Core | 1.90 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. |
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AMD Ryzen 7 7840U | Characteristic | Samsung Exynos 9820 |
AMD Ryzen™ AI | AI hardware | -- |
AMD dedicated AI XDNA Technology | 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. |
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AMD Radeon 780M | GPU | ARM Mali-G76 MP12 |
0.80 GHz | GPU frequency | 0.70 GHz |
2.70 GHz | GPU (Turbo) | -- |
3 | GPU Generation | Bifrost 3 |
4 nm | Technology | 7 nm |
4 | Max. displays | 2 |
12 | Compute units | 12 |
768 | Shader | 192 |
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. |
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AMD Radeon 780M | GPU | ARM Mali-G76 MP12 |
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 | No |
Decode | Codec AVC | Decode / Encode |
Decode | Codec VC-1 | Decode / Encode |
Decode / Encode | Codec JPEG | Decode / Encode |
Memory & PCIeThe AMD Ryzen 7 7840U supports a maximum of 256 GB of memory in 2 memory channels. The Samsung Exynos 9820 can connect up to 12 GB of memory in 4 memory channels. |
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AMD Ryzen 7 7840U | Characteristic | Samsung Exynos 9820 |
DDR5-4800, DDR5-5600, LPDDR5-6400, LPDDR5X-7500 | Memory | LPDDR4X-1866 |
256 GB | Max. Memory | 12 GB |
2 (Dual Channel) | Memory channels | 4 (Quad Channel) |
120.0 GB/s | Max. Bandwidth | -- |
Yes | ECC | No |
8.00 MB | L2 Cache | 1.50 MB |
16.00 MB | L3 Cache | 2.00 MB |
4.0 | PCIe version | -- |
20 | PCIe lanes | -- |
39.4 GB/s | PCIe Bandwidth | -- |
Thermal ManagementThe TDP (Thermal Design Power) of a processor specifies the required cooling solution. The AMD Ryzen 7 7840U has a TDP of 28 W, that of the Samsung Exynos 9820 is --. |
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AMD Ryzen 7 7840U | Characteristic | Samsung Exynos 9820 |
28 W | TDP (PL1 / PBP) | -- |
-- | TDP (PL2) | -- |
30 W | TDP up | -- |
15 W | TDP down | -- |
100 °C | Tjunction max. | -- |
Technical detailsThe AMD Ryzen 7 7840U has a 24.00 MB cache, while the Samsung Exynos 9820 cache has a total of 3.50 MB. |
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AMD Ryzen 7 7840U | Characteristic | Samsung Exynos 9820 |
4 nm | Technology | 8 nm |
Monolithic | Chip design | Unknown |
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 |
Q2/2023 | Release date | Q1/2019 |
-- | Release price | -- |
show more data | show more data | |
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AMD Ryzen 7 7840U
8C 16T @ 5.10 GHz |
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Samsung Exynos 9820
8C 8T @ 2.70 GHz |
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AMD Ryzen 7 7840U
8C 16T @ 3.30 GHz |
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Samsung Exynos 9820
8C 8T @ 2.70 GHz |
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AMD Ryzen 7 7840U
8C 16T @ 5.10 GHz |
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Samsung Exynos 9820
8C 8T @ 2.70 GHz |
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AMD Ryzen 7 7840U
8C 16T @ 3.30 GHz |
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Samsung Exynos 9820
8C 8T @ 2.70 GHz |
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AMD Ryzen 7 7840U
AMD Radeon 780M @ 2.70 GHz |
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Samsung Exynos 9820
ARM Mali-G76 MP12 @ 0.70 GHz |
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AMD Ryzen 7 7840U
8C 16T @ 3.30 GHz |
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Samsung Exynos 9820
8C 8T @ 2.70 GHz |
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AMD Ryzen 7 7840U
8C 16T @ 5.10 GHz |
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Samsung Exynos 9820
8C 8T @ 2.70 GHz |
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AMD Ryzen 7 7840U
8C 16T @ 5.10 GHz |
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Samsung Exynos 9820
8C 8T @ 2.70 GHz |
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AMD Ryzen 7 7840U
8C 16T @ 5.10 GHz |
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Samsung Exynos 9820
8C 8T @ 2.70 GHz |
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AMD Ryzen 7 7840U
8C 16T @ 3.30 GHz |
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Samsung Exynos 9820
8C 8T @ 2.70 GHz |
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AMD Ryzen 7 7840U
8C 16T @ 3.30 GHz |
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Samsung Exynos 9820
8C 8T @ 2.70 GHz |
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AMD Ryzen 7 7840U
13,450 CB R23 MC @ 30 W |
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Samsung Exynos 9820
2.70 GHz |
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AMD Ryzen 7 7840U
8C 16T @ 3.30 GHz |
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Samsung Exynos 9820
8C 8T @ 2.70 GHz |
Devices using this processor |
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AMD Ryzen 7 7840U | Samsung Exynos 9820 |
AOKZOE A1 Pro | Samsung Galaxy S10 Samsung Galaxy S10+ |