Qualcomm Snapdragon 845 | AMD Ryzen 9 3900XT | |
CPU comparisonIn this CPU comparison, we compare the Qualcomm Snapdragon 845 and the AMD Ryzen 9 3900XT and use benchmarks to check which processor is faster.
We compare the Qualcomm Snapdragon 845 8 core processor released in Q1/2018 with the AMD Ryzen 9 3900XT which has 12 CPU cores and was introduced in Q2/2020. |
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Qualcomm Snapdragon (102) | Family | AMD Ryzen 9 (35) |
Qualcomm Snapdragon 845/850 (2) | CPU group | AMD Ryzen 3000 (15) |
5 | Generation | 3 |
Kryo 385 | Architecture | Matisse (Zen 2) |
Mobile | Segment | Desktop / Server |
Qualcomm Snapdragon 835 | Predecessor | -- |
Qualcomm Snapdragon 855 | Successor | -- |
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CPU Cores and Base FrequencyThe Qualcomm Snapdragon 845 is a 8 core processor with a clock frequency of 2.80 GHz. The processor can compute 8 threads at the same time. The AMD Ryzen 9 3900XT clocks with 4.10 GHz (4.70 GHz), has 12 CPU cores and can calculate 24 threads in parallel. |
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Qualcomm Snapdragon 845 | Characteristic | AMD Ryzen 9 3900XT |
8 | Cores | 12 |
8 | Threads | 24 |
hybrid (big.LITTLE) | Core architecture | normal |
No | Hyperthreading | Yes |
No | Overclocking ? | Yes |
2.80 GHz 4x Kryo 385 Gold |
A-Core | 4.10 GHz (4.70 GHz) |
1.80 GHz 4x Kryo 385 Silver |
B-Core | -- |
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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Qualcomm Adreno 630 | GPU | no iGPU |
0.70 GHz | GPU frequency | -- |
-- | GPU (Turbo) | -- |
4 | GPU Generation | -- |
10 nm | Technology | |
2 | Max. displays | |
-- | Compute units | -- |
256 | Shader | -- |
No | Hardware Raytracing | No |
No | Frame Generation | No |
8 GB | 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 630 | 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 & PCIeUp to 10 GB of memory in a maximum of 4 memory channels is supported by the Qualcomm Snapdragon 845, while the AMD Ryzen 9 3900XT supports a maximum of 128 GB of memory with a maximum memory bandwidth of 51.2 GB/s enabled. |
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Qualcomm Snapdragon 845 | Characteristic | AMD Ryzen 9 3900XT |
LPDDR4X-3733 | Memory | DDR4-3200 |
10 GB | Max. Memory | 128 GB |
4 (Quad Channel) | Memory channels | 2 (Dual Channel) |
52.0 GB/s | Max. Bandwidth | 51.2 GB/s |
No | ECC | Yes |
1.50 MB | L2 Cache | -- |
2.00 MB | L3 Cache | 64.00 MB |
-- | PCIe version | 4.0 |
-- | PCIe lanes | 20 |
-- | PCIe Bandwidth | 39.4 GB/s |
Thermal ManagementThe Qualcomm Snapdragon 845 has a TDP of --. The TDP of the AMD Ryzen 9 3900XT is 105 W. System integrators use the TDP of the processor as a guide when dimensioning the cooling solution. |
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Qualcomm Snapdragon 845 | 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 845 has 3.50 MB cache and is manufactured in 10 nm. The cache of AMD Ryzen 9 3900XT is at 64.00 MB. The processor is manufactured in 7 nm. |
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Qualcomm Snapdragon 845 | Characteristic | AMD Ryzen 9 3900XT |
10 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 |
Q1/2018 | Release date | Q2/2020 |
-- | Release price | -- |
show more data | show more data | |
Qualcomm Snapdragon 845
8C 8T @ 2.80 GHz |
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AMD Ryzen 9 3900XT
12C 24T @ 4.70 GHz |
Qualcomm Snapdragon 845
8C 8T @ 2.80 GHz |
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AMD Ryzen 9 3900XT
12C 24T @ 4.60 GHz |
Qualcomm Snapdragon 845
8C 8T @ 2.80 GHz |
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AMD Ryzen 9 3900XT
12C 24T @ 4.70 GHz |
Qualcomm Snapdragon 845
8C 8T @ 2.80 GHz |
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AMD Ryzen 9 3900XT
12C 24T @ 4.60 GHz |
Qualcomm Snapdragon 845
8C 8T @ 2.80 GHz |
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AMD Ryzen 9 3900XT
12C 24T @ 4.60 GHz |
Qualcomm Snapdragon 845
8C 8T @ 2.80 GHz |
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AMD Ryzen 9 3900XT
12C 24T @ 4.70 GHz |
Qualcomm Snapdragon 845
8C 8T @ 2.80 GHz |
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AMD Ryzen 9 3900XT
12C 24T @ 4.70 GHz |
Qualcomm Snapdragon 845
8C 8T @ 2.80 GHz |
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AMD Ryzen 9 3900XT
12C 24T @ 4.70 GHz |
Qualcomm Snapdragon 845
8C 8T @ 2.80 GHz |
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AMD Ryzen 9 3900XT
12C 24T @ 4.60 GHz |
Qualcomm Snapdragon 845
8C 8T @ 2.80 GHz |
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AMD Ryzen 9 3900XT
12C 24T @ 4.70 GHz |
Qualcomm Snapdragon 845
8C 8T @ 2.80 GHz |
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AMD Ryzen 9 3900XT
12C 24T @ 4.60 GHz |
Qualcomm Snapdragon 845
Qualcomm Adreno 630 @ 0.70 GHz |
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AMD Ryzen 9 3900XT
@ 0.00 GHz |
Qualcomm Snapdragon 845
8C 8T @ 2.80 GHz |
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AMD Ryzen 9 3900XT
12C 24T @ 4.10 GHz |
Qualcomm Snapdragon 845
8C 8T @ 2.80 GHz |
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AMD Ryzen 9 3900XT
12C 24T @ 4.10 GHz |
Qualcomm Snapdragon 845
8C 8T @ 2.80 GHz |
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AMD Ryzen 9 3900XT
12C 24T @ 4.70 GHz |
Qualcomm Snapdragon 845
8C 8T @ 2.80 GHz |
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AMD Ryzen 9 3900XT
12C 24T @ 4.60 GHz |
Devices using this processor |
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Qualcomm Snapdragon 845 | AMD Ryzen 9 3900XT |
OnePlus 6 OnePlus 6T Vivo NEX S Asus Zenfone 5z Razer Phone 2 Asus ROG Phone Sony Xperia XZ2 |
Unknown |