Comparison of HiSilicon Kirin 990 4G and Qualcomm Snapdragon Microsoft SQ1 [S]ave
| Attribute |  Qualcomm Snapdragon Microsoft SQ1 × |  HiSilicon Kirin 990 4G × |
|---|---|---|
| General Information | ||
| Brand | Qualcomm | HiSilicon |
| Series | Qualcomm Snapdragon | HiSilicon Kirin |
| Model | Qualcomm Snapdragon Microsoft SQ1 | HiSilicon Kirin 990 4G |
| CPU Cores and Base Frequency | ||
| CPU Cores | 8 | 8 |
| Frequency (GHz) | 1.8 | 1.86 |
| CPU Threads | 8 | 8 |
| Core architecture | hybrid (big.LITTLE) | hybrid (Prime / big.LITTLE) |
| Hyperthreading | - | - |
| Overclocking | - | - |
| A core | 4x Cortex-A76 | 2x Cortex-A76 |
| B core | 4x Cortex-A55 | 2x Cortex-A76 |
| C core | - | 4x Cortex-A55 |
| Turbo (1 Core) (GHz) | 3 | 2.09 |
| Turbo (8 Cores) (GHz) | 3 | 2.86 |
| Encryption | ||
| AES-NI | + | + |
| Hardware codec support | ||
| JPEG | Decode / Encode | Decode / Encode |
| h264 | Decode / Encode | Decode / Encode |
| h265 / HEVC (8 bit) | Decode / Encode | Decode / Encode |
| h265 / HEVC (10 bit) | Decode / Encode | Decode / Encode |
| VP8 | Decode / Encode | Decode / Encode |
| AV1 | No | No |
| VC-1 | Decode | Decode / Encode |
| VP9 | Decode | Decode / Encode |
| AVC | Decode | Decode / Encode |
| Internal Graphics | ||
| GPU name | Qualcomm Adreno 685 | ARM Mali-G76 MP16 |
| GPU frequency (GHz) | 0.25 | 0.6 |
| GPU (Turbo) (GHz) | 0.65 | - |
| Generation | 5 | 0 |
| DirectX Version | 12 | 12 |
| Execution units | 8 | 16 |
| Shader | 1,536 | 256 |
| Max. GPU Memory (GB) | 4 | 4 |
| Max. displays | 2 | 2 |
| GPU Release date (year) | 2018 | 2018 |
| Memory And PCIe | ||
| Memory type | LPDDR4X-2133 | LPDDR4X-2133 |
| Max. Memory (GB) | 16 | 8 |
| ECC | - | - |
| Memory channels | 1 | 4 |
| Technical details | ||
| Release date (year) | 2019 | 2019 |
| Technology (Nm) | 7 | 7 |
| Virtualization |
|
|
| L3-Cache (MB) | 2 | 2 |
| Architecture | Kryo 495 | ARM |
| Instruction set (ISA) | ARMv8-A64 (64 bit) | ARMv8-A64 (64 bit) |
| Thermal Management | ||
| TDP (PL1) (W) | 7 | 6 |
| Benchmarks | ||
| iGPU - FP32 Performance (Single-precision GFLOPS) | 2,030 | 737 |
| Geekbench 5, 64bit (Single-Core) | 724 | 758 |
| Geekbench 5, 64bit (Multi-Core) | 2,808 | 2,869 |
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