Qualcomm Snapdragon 660 non LTE vs AMD Ryzen 9 PRO 3900
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CPU comparison with benchmarks
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| Qualcomm Snapdragon 660 non LTE | AMD Ryzen 9 PRO 3900 | |
CPU comparisonQualcomm Snapdragon 660 non LTE or AMD Ryzen 9 PRO 3900 - 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 660 non LTE has 8 cores with 8 threads and clocks with a maximum frequency of 2.20 GHz. Up to 8 GB of memory is supported in 2 memory channels. The Qualcomm Snapdragon 660 non LTE was released in Q2/2017. The AMD Ryzen 9 PRO 3900 has 12 cores with 24 threads and clocks with a maximum frequency of 4.30 GHz. The CPU supports up to 128 GB of memory in 2 memory channels. The AMD Ryzen 9 PRO 3900 was released in Q3/2019. |
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| Qualcomm Snapdragon (102) | Family | AMD Ryzen 9 PRO (4) |
| Qualcomm Snapdragon 660 (2) | CPU group | AMD Ryzen 3000 (15) |
| 5 | Generation | 3 |
| Kryo 260 | Architecture | Matisse (Zen 2) |
| Mobile | Segment | Desktop / Server |
| -- | Predecessor | -- |
| -- | Successor | -- |
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CPU Cores and Base FrequencyThe Qualcomm Snapdragon 660 non LTE has 8 CPU cores and can calculate 8 threads in parallel. The clock frequency of the Qualcomm Snapdragon 660 non LTE is 2.20 GHz while the AMD Ryzen 9 PRO 3900 has 12 CPU cores and 24 threads can calculate simultaneously. The clock frequency of the AMD Ryzen 9 PRO 3900 is at 3.10 GHz (4.30 GHz). |
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| Qualcomm Snapdragon 660 non LTE | Characteristic | AMD Ryzen 9 PRO 3900 |
| 8 | Cores | 12 |
| 8 | Threads | 24 |
| hybrid (big.LITTLE) | Core architecture | normal |
| No | Hyperthreading | Yes |
| No | Overclocking ? | Yes |
| 2.20 GHz 4x Kryo 260 Gold |
A-Core | 3.10 GHz (4.30 GHz) |
| 1.84 GHz 4x Kryo 260 Silver |
B-Core | -- |
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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| Qualcomm Snapdragon 660 non LTE | Characteristic | AMD Ryzen 9 PRO 3900 |
| Qualcomm AI engine | AI hardware | -- |
| Hexagon 680 | AI specifications | -- |
Internal GraphicsThe Qualcomm Snapdragon 660 non LTE or AMD Ryzen 9 PRO 3900 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. |
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| Qualcomm Adreno 512 | GPU | no iGPU |
| 0.60 GHz | GPU frequency | -- |
| 0.60 GHz | GPU (Turbo) | -- |
| 5 | GPU Generation | -- |
| 14 nm | Technology | |
| 0 | Max. displays | |
| -- | Compute units | -- |
| 128 | Shader | -- |
| No | Hardware Raytracing | No |
| No | Frame Generation | No |
| -- | Max. GPU Memory | -- |
| 11 | 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 512 | GPU | no iGPU |
| Decode | Codec h265 / HEVC (8 bit) | No |
| No | Codec h265 / HEVC (10 bit) | No |
| Decode | Codec h264 | No |
| Decode | Codec VP9 | No |
| Decode | Codec VP8 | No |
| No | Codec AV1 | No |
| No | Codec AVC | No |
| Decode | Codec VC-1 | No |
| Decode | Codec JPEG | No |
Memory & PCIeThe Qualcomm Snapdragon 660 non LTE can use up to 8 GB of memory in 2 memory channels. The maximum memory bandwidth is 14.9 GB/s. The AMD Ryzen 9 PRO 3900 supports up to 128 GB of memory in 2 memory channels and achieves a memory bandwidth of up to 51.2 GB/s. |
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| Qualcomm Snapdragon 660 non LTE | Characteristic | AMD Ryzen 9 PRO 3900 |
| LPDDR4-3733 | Memory | DDR4-3200 |
| 8 GB | Max. Memory | 128 GB |
| 2 (Dual Channel) | Memory channels | 2 (Dual Channel) |
| 14.9 GB/s | Max. Bandwidth | 51.2 GB/s |
| No | ECC | No |
| -- | L2 Cache | -- |
| -- | L3 Cache | 64.00 MB |
| -- | PCIe version | 4.0 |
| -- | PCIe lanes | 20 |
| -- | PCIe Bandwidth | 39.4 GB/s |
Thermal ManagementThe thermal design power (TDP for short) of the Qualcomm Snapdragon 660 non LTE is --, while the AMD Ryzen 9 PRO 3900 has a TDP of 65 W. The TDP specifies the necessary cooling solution that is required to cool the processor sufficiently. |
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| Qualcomm Snapdragon 660 non LTE | Characteristic | AMD Ryzen 9 PRO 3900 |
| -- | TDP (PL1 / PBP) | 65 W |
| -- | TDP (PL2) | -- |
| -- | TDP up | -- |
| -- | TDP down | -- |
| -- | Tjunction max. | 95 °C |
Technical detailsThe Qualcomm Snapdragon 660 non LTE is manufactured in 14 nm and has 0.00 MB cache. The AMD Ryzen 9 PRO 3900 is manufactured in 7 nm and has a 64.00 MB cache. |
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| Qualcomm Snapdragon 660 non LTE | Characteristic | AMD Ryzen 9 PRO 3900 |
| 14 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 |
| Q2/2017 | Release date | Q3/2019 |
| -- | Release price | 485 $ |
| show more data | show more data | |
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Rate these processors
Average performance in benchmarks
⌀ Single core performance in 2 CPU benchmarks
⌀ Multi core performance in 3 CPU benchmarks
Geekbench 5, 64bit (Single-Core)
Geekbench 5 is a cross plattform benchmark that heavily uses the systems memory. A fast memory will push the result a lot. The single-core test only uses one CPU core, the amount of cores or hyperthreading ability doesn't count.
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Qualcomm Snapdragon 660 non LTE
8C 8T @ 2.20 GHz |
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AMD Ryzen 9 PRO 3900
12C 24T @ 4.30 GHz |
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Geekbench 5, 64bit (Multi-Core)
Geekbench 5 is a cross plattform benchmark that heavily uses the systems memory. A fast memory will push the result a lot. The multi-core test involves all CPU cores and taks a big advantage of hyperthreading.
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Qualcomm Snapdragon 660 non LTE
8C 8T @ 2.20 GHz |
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AMD Ryzen 9 PRO 3900
12C 24T @ 3.10 GHz |
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Geekbench 6 (Single-Core)
Geekbench 6 is a benchmark for modern computers, notebooks and smartphones. What is new is an optimized utilization of newer CPU architectures, e.g. based on the big.LITTLE concept and combining CPU cores of different sizes. The single-core benchmark only evaluates the performance of the fastest CPU core, the number of CPU cores in a processor is irrelevant here.
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Qualcomm Snapdragon 660 non LTE
8C 8T @ 2.20 GHz |
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AMD Ryzen 9 PRO 3900
12C 24T @ 4.30 GHz |
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Geekbench 6 (Multi-Core)
Geekbench 6 is a benchmark for modern computers, notebooks and smartphones. What is new is an optimized utilization of newer CPU architectures, e.g. based on the big.LITTLE concept and combining CPU cores of different sizes. The multi-core benchmark evaluates the performance of all of the processor's CPU cores. Virtual thread improvements such as AMD SMT or Intel's Hyper-Threading have a positive impact on the benchmark result.
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Qualcomm Snapdragon 660 non LTE
8C 8T @ 2.20 GHz |
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AMD Ryzen 9 PRO 3900
12C 24T @ 3.10 GHz |
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Estimated results for PassMark CPU Mark
Some of the CPUs listed below have been benchmarked by CPU-monkey. However the majority of CPUs have not been tested and the results have been estimated by a CPU-monkey’s secret proprietary formula. As such they do not accurately reflect the actual Passmark CPU mark values and are not endorsed by PassMark Software Pty Ltd.
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Qualcomm Snapdragon 660 non LTE
8C 8T @ 2.20 GHz |
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AMD Ryzen 9 PRO 3900
12C 24T @ 3.10 GHz |
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iGPU - FP32 Performance (Single-precision GFLOPS)
The theoretical computing performance of the internal graphics unit of the processor with simple accuracy (32 bit) in GFLOPS. GFLOPS indicates how many billion floating point operations the iGPU can perform per second.
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Qualcomm Snapdragon 660 non LTE
Qualcomm Adreno 512 @ 0.60 GHz |
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AMD Ryzen 9 PRO 3900
@ 0.00 GHz |
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AnTuTu 8 Benchmark
The AnTuTu 8 Benchmark measures the performance of a SoC. AnTuTu benchmarks the CPU, GPU, Memory as well as the UX (User Experience) by simulating browser and app usage. AnTuTu can benchmark any ARM CPU that runs under Android or iOS. Devices may not be directly compareable if the benchmark has been performed under different operating systems.
In the AnTuTu 8 benchmark, the single-core performance of a processor is only slightly weighted. The evaluation consists of the multi-core performance of the processor, the speed of the RAM and the performance of the internal graphics.
In the AnTuTu 8 benchmark, the single-core performance of a processor is only slightly weighted. The evaluation consists of the multi-core performance of the processor, the speed of the RAM and the performance of the internal graphics.
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Qualcomm Snapdragon 660 non LTE
8C 8T @ 2.20 GHz |
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AMD Ryzen 9 PRO 3900
12C 24T @ 3.10 GHz |
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Blender 3.1 Benchmark
In the Blender Benchmark 3.1, the scenes "monster", "junkshop" and "classroom" are rendered and the time required by the system is measured. In our benchmark we test the CPU and not the graphics card. Blender 3.1 was presented as a standalone version in March 2022.
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Qualcomm Snapdragon 660 non LTE
8C 8T @ 2.20 GHz |
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AMD Ryzen 9 PRO 3900
12C 24T @ 3.10 GHz |
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Devices using this processor |
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| Qualcomm Snapdragon 660 non LTE | AMD Ryzen 9 PRO 3900 |
| Unknown | Unknown |
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