XLSR: Optimized for Qualcomm Devices

XLSR is designed for lightweight real-time upscaling of images.

This is based on the implementation of XLSR found here. This repository contains pre-exported model files optimized for Qualcomm® devices. You can use the Qualcomm® AI Hub Models library to export with custom configurations. More details on model performance across various devices, can be found here.

Qualcomm AI Hub Models uses Qualcomm AI Hub Workbench to compile, profile, and evaluate this model. Sign up to run these models on a hosted Qualcomm® device.

Getting Started

There are two ways to deploy this model on your device:

Option 1: Download Pre-Exported Models

Below are pre-exported model assets ready for deployment.

Runtime	Precision	Chipset	SDK Versions	Download
ONNX	float	Universal	QAIRT 2.45, ONNX Runtime 1.27.1	Download
ONNX	w8a8	Universal	QAIRT 2.45, ONNX Runtime 1.27.1	Download
QNN_DLC	float	Universal	QAIRT 2.45	Download
QNN_DLC	w8a8	Universal	QAIRT 2.45	Download
TFLITE	float	Universal	QAIRT 2.45	Download
TFLITE	w8a8	Universal	QAIRT 2.45	Download

For more device-specific assets and performance metrics, visit XLSR on Qualcomm® AI Hub.

Option 2: Export with Custom Configurations

Use the Qualcomm® AI Hub Models Python library to compile and export the model with your own:

Custom weights (e.g., fine-tuned checkpoints)
Custom input shapes
Target device and runtime configurations

This option is ideal if you need to customize the model beyond the default configuration provided here.

See our repository for XLSR on GitHub for usage instructions.

Model Details

Model Type: Model_use_case.super_resolution

Model Stats:

Input resolution: 128x128
Model checkpoint: xlsr_3x_checkpoint
Model size (float): 115 KB
Model size (w8a8): 45.6 KB
Number of parameters: 28.0K

Performance Summary

Model	Runtime	Precision	Chipset	Inference Time (ms)	Peak Memory Range (MB)	Primary Compute Unit
XLSR	ONNX	float	Snapdragon® X2 Elite	0.375 ms	8 - 8 MB	NPU
XLSR	ONNX	float	Snapdragon® X Elite	0.868 ms	8 - 8 MB	NPU
XLSR	ONNX	float	Snapdragon® 8 Gen 3 Mobile	0.575 ms	0 - 28 MB	NPU
XLSR	ONNX	float	Snapdragon® 8 Gen 1 Mobile	1.248 ms	1 - 35 MB	NPU
XLSR	ONNX	float	Qualcomm® Dragonwing™ IQ-8275	1.179 ms	0 - 4 MB	NPU
XLSR	ONNX	float	Qualcomm® Dragonwing™ QCS8550 (Proxy)	0.869 ms	0 - 2 MB	NPU
XLSR	ONNX	float	Qualcomm® QCS8450	1.248 ms	1 - 35 MB	NPU
XLSR	ONNX	float	Qualcomm® Dragonwing™ IQ-9075	1.18 ms	6 - 9 MB	NPU
XLSR	ONNX	float	Qualcomm® Dragonwing™ IQ-X7181	0.868 ms	8 - 8 MB	NPU
XLSR	ONNX	float	Qualcomm® Dragonwing™ Q-8750	0.467 ms	0 - 23 MB	NPU
XLSR	ONNX	float	Snapdragon® 8 Elite Mobile	0.467 ms	0 - 23 MB	NPU
XLSR	ONNX	float	Snapdragon® 8 Elite Gen 5 Mobile	0.4 ms	0 - 19 MB	NPU
XLSR	ONNX	w8a8	Snapdragon® X2 Elite	0.257 ms	3 - 3 MB	NPU
XLSR	ONNX	w8a8	Snapdragon® X Elite	0.643 ms	3 - 3 MB	NPU
XLSR	ONNX	w8a8	Snapdragon® 8 Gen 3 Mobile	0.423 ms	0 - 33 MB	NPU
XLSR	ONNX	w8a8	Snapdragon® 8 Gen 1 Mobile	0.72 ms	2 - 39 MB	NPU
XLSR	ONNX	w8a8	Qualcomm® Dragonwing™ QCS6490	3.32 ms	2 - 4 MB	NPU
XLSR	ONNX	w8a8	Qualcomm® Dragonwing™ IQ-8275	0.705 ms	0 - 4 MB	NPU
XLSR	ONNX	w8a8	Qualcomm® Dragonwing™ QCS8550 (Proxy)	0.643 ms	0 - 2 MB	NPU
XLSR	ONNX	w8a8	Qualcomm® QCS8450	0.72 ms	2 - 39 MB	NPU
XLSR	ONNX	w8a8	Qualcomm® Dragonwing™ IQ-9075	0.786 ms	0 - 3 MB	NPU
XLSR	ONNX	w8a8	Qualcomm® Dragonwing™ IQ-X7181	0.643 ms	3 - 3 MB	NPU
XLSR	ONNX	w8a8	Qualcomm® Dragonwing™ Q-6690	3.055 ms	0 - 137 MB	NPU
XLSR	ONNX	w8a8	Qualcomm® Dragonwing™ Q-7790	0.659 ms	0 - 23 MB	NPU
XLSR	ONNX	w8a8	Qualcomm® Dragonwing™ Q-8750	0.311 ms	0 - 23 MB	NPU
XLSR	ONNX	w8a8	Snapdragon® 8 Elite Mobile	0.311 ms	0 - 23 MB	NPU
XLSR	ONNX	w8a8	Snapdragon® 8 Elite Gen 5 Mobile	0.268 ms	0 - 24 MB	NPU
XLSR	ONNX	w8a8	Snapdragon® 7 Gen 4 Mobile	0.659 ms	0 - 23 MB	NPU
XLSR	QNN_DLC	float	Snapdragon® X2 Elite	0.727 ms	0 - 0 MB	NPU
XLSR	QNN_DLC	float	Snapdragon® X Elite	0.847 ms	0 - 0 MB	NPU
XLSR	QNN_DLC	float	Snapdragon® 8 Gen 3 Mobile	0.458 ms	0 - 30 MB	NPU
XLSR	QNN_DLC	float	Snapdragon® 8 Gen 1 Mobile	1.051 ms	0 - 36 MB	NPU
XLSR	QNN_DLC	float	Qualcomm® Dragonwing™ IQ-8275	0.939 ms	0 - 6 MB	NPU
XLSR	QNN_DLC	float	Qualcomm® Dragonwing™ QCS8550 (Proxy)	0.785 ms	0 - 3 MB	NPU
XLSR	QNN_DLC	float	Qualcomm® SA8775P	1.139 ms	0 - 22 MB	NPU
XLSR	QNN_DLC	float	Qualcomm® SA8650P	1.139 ms	0 - 22 MB	NPU
XLSR	QNN_DLC	float	Qualcomm® SA8255P	1.139 ms	0 - 22 MB	NPU
XLSR	QNN_DLC	float	Qualcomm® QCS8450	1.051 ms	0 - 36 MB	NPU
XLSR	QNN_DLC	float	Qualcomm® Dragonwing™ IQ-9075	1.033 ms	0 - 5 MB	NPU
XLSR	QNN_DLC	float	Qualcomm® Dragonwing™ IQ-X7181	0.847 ms	0 - 0 MB	NPU
XLSR	QNN_DLC	float	Qualcomm® Dragonwing™ Q-8750	0.369 ms	0 - 26 MB	NPU
XLSR	QNN_DLC	float	Qualcomm® SA7255P	2.178 ms	0 - 21 MB	NPU
XLSR	QNN_DLC	float	Qualcomm® SA8295P	1.392 ms	0 - 17 MB	NPU
XLSR	QNN_DLC	float	Snapdragon® 8 Elite Mobile	0.369 ms	0 - 26 MB	NPU
XLSR	QNN_DLC	float	Snapdragon® 8 Elite Gen 5 Mobile	0.335 ms	0 - 22 MB	NPU
XLSR	QNN_DLC	w8a8	Snapdragon® X2 Elite	0.27 ms	0 - 0 MB	NPU
XLSR	QNN_DLC	w8a8	Snapdragon® X Elite	0.482 ms	0 - 0 MB	NPU
XLSR	QNN_DLC	w8a8	Snapdragon® 8 Gen 3 Mobile	0.248 ms	0 - 29 MB	NPU
XLSR	QNN_DLC	w8a8	Snapdragon® 8 Gen 1 Mobile	0.472 ms	0 - 29 MB	NPU
XLSR	QNN_DLC	w8a8	Qualcomm® Dragonwing™ QCS6490	1.412 ms	2 - 4 MB	NPU
XLSR	QNN_DLC	w8a8	Qualcomm® Dragonwing™ IQ-8275	0.419 ms	0 - 3 MB	NPU
XLSR	QNN_DLC	w8a8	Qualcomm® Dragonwing™ QCS8550 (Proxy)	0.381 ms	0 - 12 MB	NPU
XLSR	QNN_DLC	w8a8	Qualcomm® SA8775P	0.576 ms	0 - 22 MB	NPU
XLSR	QNN_DLC	w8a8	Qualcomm® SA8650P	0.576 ms	0 - 22 MB	NPU
XLSR	QNN_DLC	w8a8	Qualcomm® SA8255P	0.576 ms	0 - 22 MB	NPU
XLSR	QNN_DLC	w8a8	Qualcomm® QCS8450	0.472 ms	0 - 29 MB	NPU
XLSR	QNN_DLC	w8a8	Qualcomm® Dragonwing™ IQ-9075	0.512 ms	2 - 4 MB	NPU
XLSR	QNN_DLC	w8a8	Qualcomm® Dragonwing™ IQ-X7181	0.482 ms	0 - 0 MB	NPU
XLSR	QNN_DLC	w8a8	Qualcomm® Dragonwing™ Q-6690	1.6 ms	0 - 19 MB	NPU
XLSR	QNN_DLC	w8a8	Qualcomm® Dragonwing™ Q-7790	0.42 ms	0 - 20 MB	NPU
XLSR	QNN_DLC	w8a8	Qualcomm® Dragonwing™ Q-8750	0.214 ms	0 - 21 MB	NPU
XLSR	QNN_DLC	w8a8	Qualcomm® SA8295P	0.771 ms	0 - 18 MB	NPU
XLSR	QNN_DLC	w8a8	Snapdragon® 8 Elite Mobile	0.214 ms	0 - 21 MB	NPU
XLSR	QNN_DLC	w8a8	Snapdragon® 8 Elite Gen 5 Mobile	0.185 ms	0 - 23 MB	NPU
XLSR	QNN_DLC	w8a8	Snapdragon® 7 Gen 4 Mobile	0.42 ms	0 - 20 MB	NPU
XLSR	TFLITE	float	Snapdragon® 8 Gen 3 Mobile	1.398 ms	0 - 32 MB	NPU
XLSR	TFLITE	float	Snapdragon® 8 Gen 1 Mobile	2.497 ms	0 - 37 MB	NPU
XLSR	TFLITE	float	Qualcomm® Dragonwing™ IQ-8275	2.179 ms	3 - 9 MB	NPU
XLSR	TFLITE	float	Qualcomm® Dragonwing™ QCS8550 (Proxy)	2.215 ms	0 - 1 MB	NPU
XLSR	TFLITE	float	Qualcomm® SA8775P	2.655 ms	0 - 23 MB	NPU
XLSR	TFLITE	float	Qualcomm® SA8650P	2.655 ms	0 - 23 MB	NPU
XLSR	TFLITE	float	Qualcomm® SA8255P	2.655 ms	0 - 23 MB	NPU
XLSR	TFLITE	float	Qualcomm® QCS8450	2.497 ms	0 - 37 MB	NPU
XLSR	TFLITE	float	Qualcomm® Dragonwing™ IQ-9075	2.492 ms	3 - 8 MB	NPU
XLSR	TFLITE	float	Qualcomm® Dragonwing™ Q-8750	0.966 ms	0 - 21 MB	NPU
XLSR	TFLITE	float	Qualcomm® SA7255P	4.654 ms	3 - 25 MB	NPU
XLSR	TFLITE	float	Qualcomm® SA8295P	3.079 ms	0 - 18 MB	NPU
XLSR	TFLITE	float	Snapdragon® 8 Elite Mobile	0.966 ms	0 - 21 MB	NPU
XLSR	TFLITE	float	Snapdragon® 8 Elite Gen 5 Mobile	0.785 ms	0 - 23 MB	NPU
XLSR	TFLITE	w8a8	Snapdragon® 8 Gen 3 Mobile	0.263 ms	0 - 29 MB	NPU
XLSR	TFLITE	w8a8	Snapdragon® 8 Gen 1 Mobile	0.47 ms	0 - 34 MB	NPU
XLSR	TFLITE	w8a8	Qualcomm® Dragonwing™ QCS6490	1.131 ms	0 - 3 MB	NPU
XLSR	TFLITE	w8a8	Qualcomm® Dragonwing™ IQ-8275	0.43 ms	0 - 3 MB	NPU
XLSR	TFLITE	w8a8	Qualcomm® Dragonwing™ QCS8550 (Proxy)	0.404 ms	0 - 2 MB	NPU
XLSR	TFLITE	w8a8	Qualcomm® SA8775P	0.607 ms	0 - 23 MB	NPU
XLSR	TFLITE	w8a8	Qualcomm® SA8650P	0.607 ms	0 - 23 MB	NPU
XLSR	TFLITE	w8a8	Qualcomm® SA8255P	0.607 ms	0 - 23 MB	NPU
XLSR	TFLITE	w8a8	Qualcomm® QCS8450	0.47 ms	0 - 34 MB	NPU
XLSR	TFLITE	w8a8	Qualcomm® Dragonwing™ IQ-9075	0.539 ms	0 - 3 MB	NPU
XLSR	TFLITE	w8a8	Qualcomm® Dragonwing™ Q-6690	1.621 ms	0 - 18 MB	NPU
XLSR	TFLITE	w8a8	Qualcomm® Dragonwing™ Q-7790	0.418 ms	0 - 20 MB	NPU
XLSR	TFLITE	w8a8	Qualcomm® Dragonwing™ Q-8750	0.215 ms	0 - 21 MB	NPU
XLSR	TFLITE	w8a8	Qualcomm® SA7255P	0.947 ms	0 - 22 MB	NPU
XLSR	TFLITE	w8a8	Qualcomm® SA8295P	0.793 ms	0 - 18 MB	NPU
XLSR	TFLITE	w8a8	Snapdragon® 8 Elite Mobile	0.215 ms	0 - 21 MB	NPU
XLSR	TFLITE	w8a8	Snapdragon® 8 Elite Gen 5 Mobile	0.186 ms	0 - 21 MB	NPU
XLSR	TFLITE	w8a8	Snapdragon® 7 Gen 4 Mobile	0.418 ms	0 - 20 MB	NPU

License

The license for the original implementation of XLSR can be found here.

References

Community

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Paper for qualcomm/XLSR

Extremely Lightweight Quantization Robust Real-Time Single-Image Super Resolution for Mobile Devices

Paper • 2105.10288 • Published May 21, 2021