Qualcomm Snapdragon 7c | AMD Ryzen 9 3900XT | |
CPU comparisonQualcomm Snapdragon 7c or AMD Ryzen 9 3900XT - 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 Qualcomm Snapdragon 7c has 8 cores with 8 threads and clocks with a maximum frequency of 2.40 GHz. Up to 8 GB of memory is supported in 2 memory channels. The Qualcomm Snapdragon 7c was released in 2020. The AMD Ryzen 9 3900XT has 12 cores with 24 threads and clocks with a maximum frequency of 4.70 GHz. The CPU supports up to 128 GB of memory in 2 memory channels. The AMD Ryzen 9 3900XT was released in Q2/2020. |
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Qualcomm Snapdragon (104) | Family | AMD Ryzen 9 (40) |
Qualcomm Snapdragon 7c (2) | CPU group | AMD Ryzen 3000 (15) |
2 | Generation | 3 |
Kryo 468 | Architecture | Matisse (Zen 2) |
Mobile | Segment | Desktop / Server |
-- | Predecessor | -- |
Qualcomm Snapdragon 7c Gen 2 | Successor | AMD Ryzen 9 5900XT |
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CPU Cores and Base FrequencyThe Qualcomm Snapdragon 7c is a 8 core processor with a clock frequency of 2.40 GHz. The AMD Ryzen 9 3900XT has 12 CPU cores with a clock frequency of 4.10 GHz (4.70 GHz). |
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Qualcomm Snapdragon 7c | Characteristic | AMD Ryzen 9 3900XT |
8 | Cores | 12 |
8 | Threads | 24 |
hybrid (big.LITTLE) | Core architecture | normal |
No | Hyperthreading | Yes |
No | Overclocking ? | Yes |
2.40 GHz 2x Kryo 468 Gold |
A-Core | 4.10 GHz (4.70 GHz) |
2.40 GHz 6x Kryo 468 Silver |
B-Core | -- |
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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Qualcomm Snapdragon 7c | Characteristic | AMD Ryzen 9 3900XT |
Qualcomm AI engine | AI hardware | -- |
Hexagon 692 @ 5 TOPS | 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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Qualcomm Adreno 618 | GPU | no iGPU |
0.70 GHz | GPU frequency | -- |
-- | GPU (Turbo) | -- |
6 | GPU Generation | -- |
14 nm | Technology | |
2 | Max. displays | |
-- | Compute units | -- |
128 | Shader | -- |
No | Hardware Raytracing | No |
No | Frame Generation | No |
4 GB | Max. GPU Memory | -- |
12.1 | DirectX Version | -- |
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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Qualcomm Adreno 618 | GPU | no iGPU |
Decode | Codec h265 / HEVC (8 bit) | No |
Decode | Codec h265 / HEVC (10 bit) | No |
Decode / Encode | Codec h264 | No |
Decode | Codec VP9 | No |
Decode | Codec VP8 | No |
No | Codec AV1 | No |
Decode | Codec AVC | No |
Decode | Codec VC-1 | No |
Decode / Encode | Codec JPEG | No |
Memory & PCIeThe Qualcomm Snapdragon 7c supports a maximum of 8 GB of memory in 2 memory channels. The AMD Ryzen 9 3900XT can connect up to 128 GB of memory in 2 memory channels. |
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Qualcomm Snapdragon 7c | Characteristic | AMD Ryzen 9 3900XT |
LPDDR4X-4266 | Memory | DDR4-3200 |
8 GB | Max. Memory | 128 GB |
2 (Dual Channel) | Memory channels | 2 (Dual Channel) |
17.1 GB/s | Max. Bandwidth | 51.2 GB/s |
No | ECC | Yes |
-- | L2 Cache | -- |
-- | L3 Cache | 64.00 MB |
-- | PCIe version | 4.0 |
-- | PCIe lanes | 20 |
-- | PCIe Bandwidth | 39.4 GB/s |
Thermal ManagementThe TDP (Thermal Design Power) of a processor specifies the required cooling solution. The Qualcomm Snapdragon 7c has a TDP of --, that of the AMD Ryzen 9 3900XT is 105 W. |
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Qualcomm Snapdragon 7c | Characteristic | AMD Ryzen 9 3900XT |
-- | TDP (PL1 / PBP) | 105 W |
-- | TDP (PL2) | 142 W |
-- | TDP up | -- |
-- | TDP down | -- |
-- | Tjunction max. | 95 °C |
Technical detailsThe Qualcomm Snapdragon 7c has a 0.00 MB cache, while the AMD Ryzen 9 3900XT cache has a total of 64.00 MB. |
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Qualcomm Snapdragon 7c | Characteristic | AMD Ryzen 9 3900XT |
8 nm | Technology | 7 nm |
Chiplet | Chip design | Chiplet |
Armv8-A (64 bit) | Instruction set (ISA) | x86-64 (64 bit) |
-- | ISA extensions | SSE4a, SSE4.1, SSE4.2, AVX2, FMA3 |
-- | Socket | AM4 (PGA 1331) |
None | Virtualization | AMD-V, SVM |
No | AES-NI | Yes |
Android | Operating systems | Windows 10, Windows 11, Linux |
2020 | Release date | Q2/2020 |
-- | Release price | -- |
show more data | show more data | |
Qualcomm Snapdragon 7c
8C 8T @ 2.40 GHz |
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AMD Ryzen 9 3900XT
12C 24T @ 4.70 GHz |
Qualcomm Snapdragon 7c
8C 8T @ 2.40 GHz |
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AMD Ryzen 9 3900XT
12C 24T @ 4.60 GHz |
Qualcomm Snapdragon 7c
8C 8T @ 2.40 GHz |
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AMD Ryzen 9 3900XT
12C 24T @ 4.70 GHz |
Qualcomm Snapdragon 7c
8C 8T @ 2.40 GHz |
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AMD Ryzen 9 3900XT
12C 24T @ 4.70 GHz |
Qualcomm Snapdragon 7c
8C 8T @ 2.40 GHz |
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AMD Ryzen 9 3900XT
12C 24T @ 4.70 GHz |
Qualcomm Snapdragon 7c
8C 8T @ 2.40 GHz |
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AMD Ryzen 9 3900XT
12C 24T @ 4.60 GHz |
Qualcomm Snapdragon 7c
8C 8T @ 2.40 GHz |
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AMD Ryzen 9 3900XT
12C 24T @ 4.70 GHz |
Qualcomm Snapdragon 7c
8C 8T @ 2.40 GHz |
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AMD Ryzen 9 3900XT
12C 24T @ 4.60 GHz |
Qualcomm Snapdragon 7c
8C 8T @ 2.40 GHz |
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AMD Ryzen 9 3900XT
12C 24T @ 4.70 GHz |
Qualcomm Snapdragon 7c
8C 8T @ 2.40 GHz |
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AMD Ryzen 9 3900XT
12C 24T @ 4.60 GHz |
Qualcomm Snapdragon 7c
Qualcomm Adreno 618 @ 0.70 GHz |
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AMD Ryzen 9 3900XT
@ 0.00 GHz |
Qualcomm Snapdragon 7c
8C 8T @ 2.40 GHz |
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AMD Ryzen 9 3900XT
12C 24T @ 4.60 GHz |
Qualcomm Snapdragon 7c
8C 8T @ 2.40 GHz |
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AMD Ryzen 9 3900XT
12C 24T @ 4.10 GHz |
Qualcomm Snapdragon 7c
8C 8T @ 2.40 GHz |
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AMD Ryzen 9 3900XT
12C 24T @ 4.70 GHz |
Qualcomm Snapdragon 7c
8C 8T @ 2.40 GHz |
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AMD Ryzen 9 3900XT
12C 24T @ 4.60 GHz |
Qualcomm Snapdragon 7c
8C 8T @ 2.40 GHz |
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AMD Ryzen 9 3900XT
12C 24T @ 4.10 GHz |
Devices using this processor |
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Qualcomm Snapdragon 7c | AMD Ryzen 9 3900XT |
HP Chromebook x2 11 Acer Aspire 1 A114-61 |
Unknown |