AMD Ryzen 9 6900HX | Qualcomm Snapdragon 821 | |
CPU comparisonIn this CPU comparison, we compare the AMD Ryzen 9 6900HX and the Qualcomm Snapdragon 821 and use benchmarks to check which processor is faster.
We compare the AMD Ryzen 9 6900HX 8 core processor released in Q1/2022 with the Qualcomm Snapdragon 821 which has 4 CPU cores and was introduced in Q3/2016. |
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AMD Ryzen 9 (37) | Family | Qualcomm Snapdragon (102) |
AMD Ryzen 6000H/7035H (20) | CPU group | Qualcomm Snapdragon 820 (3) |
5 | Generation | 3 |
Rembrandt (Zen 3+) | Architecture | Kryo |
Mobile | Segment | Mobile |
AMD Ryzen 9 5900HX | Predecessor | -- |
-- | Successor | -- |
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CPU Cores and Base FrequencyThe AMD Ryzen 9 6900HX is a 8 core processor with a clock frequency of 3.30 GHz (4.90 GHz). The processor can compute 16 threads at the same time. The Qualcomm Snapdragon 821 clocks with 2.40 GHz, has 4 CPU cores and can calculate 4 threads in parallel. |
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AMD Ryzen 9 6900HX | Characteristic | Qualcomm Snapdragon 821 |
8 | Cores | 4 |
16 | Threads | 4 |
normal | Core architecture | hybrid (big.LITTLE) |
Yes | Hyperthreading | No |
No | Overclocking ? | No |
3.30 GHz (4.90 GHz) 8x Zen 3+ |
A-Core | 2.40 GHz 2x Kryo |
-- | B-Core | 1.60 GHz 2x Kryo |
Artificial Intelligence and Machine LearningProcessors 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. |
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AMD Ryzen 9 6900HX | Characteristic | Qualcomm Snapdragon 821 |
-- | AI hardware | Qualcomm AI engine |
-- | AI specifications | Hexagon 680 |
Internal GraphicsGraphics (iGPU) integrated into the processor not only enable image output without having to rely on a dedicated graphics solution, but can also efficiently accelerate video playback. |
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AMD Radeon 680M | GPU | Qualcomm Adreno 530 |
2.00 GHz | GPU frequency | 0.62 GHz |
2.40 GHz | GPU (Turbo) | 0.62 GHz |
9 | GPU Generation | 5 |
6 nm | Technology | 14 nm |
3 | Max. displays | 0 |
12 | Compute units | -- |
768 | Shader | 256 |
Yes | Hardware Raytracing | No |
No | Frame Generation | No |
8 GB | Max. GPU Memory | -- |
12 | DirectX Version | 11,1 |
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 680M | GPU | Qualcomm Adreno 530 |
Decode / Encode | Codec h265 / HEVC (8 bit) | Decode |
Decode / Encode | Codec h265 / HEVC (10 bit) | No |
Decode / Encode | Codec h264 | Decode |
Decode / Encode | Codec VP9 | Decode |
Decode / Encode | Codec VP8 | Decode |
Decode | Codec AV1 | No |
Decode / Encode | Codec AVC | No |
Decode | Codec VC-1 | Decode |
Decode / Encode | Codec JPEG | Decode |
Memory & PCIeUp to 64 GB of memory in a maximum of 2 memory channels is supported by the AMD Ryzen 9 6900HX, while the Qualcomm Snapdragon 821 supports a maximum of 8 GB of memory with a maximum memory bandwidth of 14.9 GB/s enabled. |
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AMD Ryzen 9 6900HX | Characteristic | Qualcomm Snapdragon 821 |
LPDDR5-6400, DDR5-4800 | Memory | LPDDR4-3733 |
64 GB | Max. Memory | 8 GB |
2 (Dual Channel) | Memory channels | 2 (Dual Channel) |
76.8 GB/s | Max. Bandwidth | 14.9 GB/s |
No | ECC | No |
4.00 MB | L2 Cache | -- |
16.00 MB | L3 Cache | -- |
4.0 | PCIe version | -- |
12 | PCIe lanes | -- |
23.6 GB/s | PCIe Bandwidth | -- |
Thermal ManagementThe AMD Ryzen 9 6900HX has a TDP of 45 W. The TDP of the Qualcomm Snapdragon 821 is --. System integrators use the TDP of the processor as a guide when dimensioning the cooling solution. |
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AMD Ryzen 9 6900HX | Characteristic | Qualcomm Snapdragon 821 |
45 W | TDP (PL1 / PBP) | -- |
-- | TDP (PL2) | -- |
54 W | TDP up | -- |
-- | TDP down | -- |
95 °C | Tjunction max. | -- |
Technical detailsThe AMD Ryzen 9 6900HX has 20.00 MB cache and is manufactured in 6 nm. The cache of Qualcomm Snapdragon 821 is at 0.00 MB. The processor is manufactured in 14 nm. |
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AMD Ryzen 9 6900HX | Characteristic | Qualcomm Snapdragon 821 |
6 nm | Technology | 14 nm |
Monolithic | Chip design | Chiplet |
x86-64 (64 bit) | Instruction set (ISA) | Armv8-A (64 bit) |
SSE4a, SSE4.1, SSE4.2, AVX2, FMA3 | ISA extensions | -- |
FP7 | Socket | -- |
AMD-V, SVM | Virtualization | None |
Yes | AES-NI | No |
Windows 10, Windows 11, Linux | Operating systems | Android |
Q1/2022 | Release date | Q3/2016 |
-- | Release price | -- |
show more data | show more data | |
AMD Ryzen 9 6900HX
8C 16T @ 4.90 GHz |
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Qualcomm Snapdragon 821
4C 4T @ 2.40 GHz |
AMD Ryzen 9 6900HX
8C 16T @ 4.20 GHz |
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Qualcomm Snapdragon 821
4C 4T @ 2.40 GHz |
AMD Ryzen 9 6900HX
8C 16T @ 4.90 GHz |
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Qualcomm Snapdragon 821
4C 4T @ 2.40 GHz |
AMD Ryzen 9 6900HX
8C 16T @ 4.20 GHz |
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Qualcomm Snapdragon 821
4C 4T @ 2.40 GHz |
AMD Ryzen 9 6900HX
AMD Radeon 680M @ 2.40 GHz |
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Qualcomm Snapdragon 821
Qualcomm Adreno 530 @ 0.62 GHz |
AMD Ryzen 9 6900HX
8C 16T @ 4.20 GHz |
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Qualcomm Snapdragon 821
4C 4T @ 2.40 GHz |
AMD Ryzen 9 6900HX
8C 16T @ 4.90 GHz |
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Qualcomm Snapdragon 821
4C 4T @ 2.40 GHz |
AMD Ryzen 9 6900HX
8C 16T @ 4.20 GHz |
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Qualcomm Snapdragon 821
4C 4T @ 2.40 GHz |
AMD Ryzen 9 6900HX
8C 16T @ 4.90 GHz |
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Qualcomm Snapdragon 821
4C 4T @ 2.40 GHz |
AMD Ryzen 9 6900HX
8C 16T @ 4.20 GHz |
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Qualcomm Snapdragon 821
4C 4T @ 2.40 GHz |
Devices using this processor |
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AMD Ryzen 9 6900HX | Qualcomm Snapdragon 821 |
Unknown | Unknown |