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 2.42, ONNX Runtime 1.25.0	Download
ONNX	w8a8	Universal	QAIRT 2.42, ONNX Runtime 1.25.0	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:

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

Performance Summary

Model	Runtime	Precision	Chipset	Inference Time (ms)	Peak Memory Range (MB)	Primary Compute Unit
XLSR	ONNX	float	Snapdragon® 8 Elite Gen 5 Mobile	0.425 ms	0 - 23 MB	NPU
XLSR	ONNX	float	Snapdragon® X2 Elite	0.401 ms	212 - 212 MB	NPU
XLSR	ONNX	float	Snapdragon® X Elite	0.967 ms	150 - 150 MB	NPU
XLSR	ONNX	float	Snapdragon® 8 Gen 3 Mobile	0.651 ms	0 - 28 MB	NPU
XLSR	ONNX	float	Qualcomm® QCS8550 (Proxy)	0.94 ms	0 - 16 MB	NPU
XLSR	ONNX	float	Snapdragon® 8 Elite For Galaxy Mobile	0.509 ms	0 - 19 MB	NPU
XLSR	ONNX	float	Qualcomm® QCS9075	1.237 ms	6 - 51 MB	NPU
XLSR	ONNX	float	Qualcomm® QCS8750	0.509 ms	0 - 19 MB	NPU
XLSR	ONNX	float	Qualcomm® QCS7181	0.967 ms	150 - 150 MB	NPU
XLSR	ONNX	w8a8	Snapdragon® 8 Elite Gen 5 Mobile	0.246 ms	0 - 23 MB	NPU
XLSR	ONNX	w8a8	Snapdragon® X2 Elite	0.241 ms	212 - 212 MB	NPU
XLSR	ONNX	w8a8	Snapdragon® X Elite	0.537 ms	181 - 181 MB	NPU
XLSR	ONNX	w8a8	Snapdragon® 8 Gen 3 Mobile	0.357 ms	0 - 31 MB	NPU
XLSR	ONNX	w8a8	Qualcomm® QCS6490	12.211 ms	19 - 21 MB	CPU
XLSR	ONNX	w8a8	Qualcomm® QCS8550 (Proxy)	0.547 ms	0 - 47 MB	NPU
XLSR	ONNX	w8a8	Snapdragon® 7 Gen 4 Mobile	6.063 ms	17 - 24 MB	CPU
XLSR	ONNX	w8a8	Qualcomm® QCM6690	8.361 ms	19 - 26 MB	CPU
XLSR	ONNX	w8a8	Snapdragon® 8 Elite For Galaxy Mobile	0.263 ms	1 - 25 MB	NPU
XLSR	ONNX	w8a8	Qualcomm® QCS9075	0.701 ms	0 - 45 MB	NPU
XLSR	ONNX	w8a8	Qualcomm® QCS7790	6.063 ms	17 - 24 MB	CPU
XLSR	ONNX	w8a8	Qualcomm® QCS8750	0.263 ms	1 - 25 MB	NPU
XLSR	ONNX	w8a8	Qualcomm® QCS7181	0.537 ms	181 - 181 MB	NPU
XLSR	QNN_DLC	float	Snapdragon® 8 Elite Gen 5 Mobile	0.326 ms	0 - 24 MB	NPU
XLSR	QNN_DLC	float	Snapdragon® X2 Elite	0.423 ms	0 - 0 MB	NPU
XLSR	QNN_DLC	float	Snapdragon® X Elite	0.885 ms	0 - 0 MB	NPU
XLSR	QNN_DLC	float	Snapdragon® 8 Gen 3 Mobile	0.462 ms	0 - 29 MB	NPU
XLSR	QNN_DLC	float	Qualcomm® QCS8275	2.186 ms	0 - 21 MB	NPU
XLSR	QNN_DLC	float	Qualcomm® QCS8550 (Proxy)	0.758 ms	0 - 3 MB	NPU
XLSR	QNN_DLC	float	Qualcomm® SA8775P	1.137 ms	0 - 22 MB	NPU
XLSR	QNN_DLC	float	Qualcomm® SA8650P	1.137 ms	0 - 22 MB	NPU
XLSR	QNN_DLC	float	Qualcomm® SA8255P	1.137 ms	0 - 22 MB	NPU
XLSR	QNN_DLC	float	Qualcomm® QCS8450 (Proxy)	1.092 ms	0 - 31 MB	NPU
XLSR	QNN_DLC	float	Qualcomm® SA8295P	1.408 ms	0 - 18 MB	NPU
XLSR	QNN_DLC	float	Snapdragon® 8 Elite For Galaxy Mobile	0.362 ms	0 - 21 MB	NPU
XLSR	QNN_DLC	float	Qualcomm® SA7255P	2.186 ms	0 - 21 MB	NPU
XLSR	QNN_DLC	float	Qualcomm® QCS9075	1.132 ms	0 - 5 MB	NPU
XLSR	QNN_DLC	float	Qualcomm® QCS8750	0.362 ms	0 - 21 MB	NPU
XLSR	QNN_DLC	float	Qualcomm® QCS7181	0.885 ms	0 - 0 MB	NPU
XLSR	QNN_DLC	w8a8	Snapdragon® 8 Elite Gen 5 Mobile	0.178 ms	0 - 24 MB	NPU
XLSR	QNN_DLC	w8a8	Snapdragon® X2 Elite	0.266 ms	0 - 0 MB	NPU
XLSR	QNN_DLC	w8a8	Snapdragon® X Elite	0.481 ms	0 - 0 MB	NPU
XLSR	QNN_DLC	w8a8	Snapdragon® 8 Gen 3 Mobile	0.249 ms	0 - 30 MB	NPU
XLSR	QNN_DLC	w8a8	Qualcomm® QCS6490	1.393 ms	0 - 2 MB	NPU
XLSR	QNN_DLC	w8a8	Qualcomm® QCS8275	0.971 ms	0 - 21 MB	NPU
XLSR	QNN_DLC	w8a8	Qualcomm® QCS8550 (Proxy)	0.38 ms	0 - 28 MB	NPU
XLSR	QNN_DLC	w8a8	Qualcomm® SA8775P	0.575 ms	0 - 23 MB	NPU
XLSR	QNN_DLC	w8a8	Qualcomm® SA8650P	0.575 ms	0 - 23 MB	NPU
XLSR	QNN_DLC	w8a8	Qualcomm® SA8255P	0.575 ms	0 - 23 MB	NPU
XLSR	QNN_DLC	w8a8	Qualcomm® SA7255P	0.971 ms	0 - 21 MB	NPU
XLSR	QNN_DLC	w8a8	Snapdragon® 7 Gen 4 Mobile	0.41 ms	0 - 20 MB	NPU
XLSR	QNN_DLC	w8a8	Qualcomm® SA8295P	0.763 ms	0 - 18 MB	NPU
XLSR	QNN_DLC	w8a8	Qualcomm® QCM6690	1.595 ms	0 - 19 MB	NPU
XLSR	QNN_DLC	w8a8	Snapdragon® 8 Elite For Galaxy Mobile	0.208 ms	0 - 26 MB	NPU
XLSR	QNN_DLC	w8a8	Qualcomm® QCS9075	0.56 ms	0 - 2 MB	NPU
XLSR	QNN_DLC	w8a8	Qualcomm® QCS8450 (Proxy)	0.467 ms	0 - 30 MB	NPU
XLSR	QNN_DLC	w8a8	Qualcomm® QCS7790	0.41 ms	0 - 20 MB	NPU
XLSR	QNN_DLC	w8a8	Qualcomm® QCS8750	0.208 ms	0 - 26 MB	NPU
XLSR	QNN_DLC	w8a8	Qualcomm® QCS7181	0.481 ms	0 - 0 MB	NPU
XLSR	TFLITE	float	Snapdragon® 8 Elite Gen 5 Mobile	0.781 ms	0 - 25 MB	NPU
XLSR	TFLITE	float	Snapdragon® 8 Gen 3 Mobile	1.4 ms	0 - 31 MB	NPU
XLSR	TFLITE	float	Qualcomm® QCS8275	4.643 ms	3 - 25 MB	NPU
XLSR	TFLITE	float	Qualcomm® QCS8550 (Proxy)	2.189 ms	0 - 3 MB	NPU
XLSR	TFLITE	float	Qualcomm® SA8775P	2.652 ms	0 - 23 MB	NPU
XLSR	TFLITE	float	Qualcomm® SA8650P	2.652 ms	0 - 23 MB	NPU
XLSR	TFLITE	float	Qualcomm® SA8255P	2.652 ms	0 - 23 MB	NPU
XLSR	TFLITE	float	Qualcomm® QCS8450 (Proxy)	2.5 ms	0 - 32 MB	NPU
XLSR	TFLITE	float	Qualcomm® SA8295P	3.114 ms	0 - 19 MB	NPU
XLSR	TFLITE	float	Snapdragon® 8 Elite For Galaxy Mobile	0.964 ms	0 - 26 MB	NPU
XLSR	TFLITE	float	Qualcomm® SA7255P	4.643 ms	3 - 25 MB	NPU
XLSR	TFLITE	float	Qualcomm® QCS9075	2.579 ms	3 - 8 MB	NPU
XLSR	TFLITE	float	Qualcomm® QCS8750	0.964 ms	0 - 26 MB	NPU
XLSR	TFLITE	w8a8	Snapdragon® 8 Elite Gen 5 Mobile	0.18 ms	0 - 24 MB	NPU
XLSR	TFLITE	w8a8	Snapdragon® 8 Gen 3 Mobile	0.269 ms	0 - 29 MB	NPU
XLSR	TFLITE	w8a8	Qualcomm® QCS6490	1.203 ms	0 - 3 MB	NPU
XLSR	TFLITE	w8a8	Qualcomm® QCS8275	0.96 ms	0 - 22 MB	NPU
XLSR	TFLITE	w8a8	Qualcomm® QCS8550 (Proxy)	0.396 ms	0 - 7 MB	NPU
XLSR	TFLITE	w8a8	Qualcomm® SA8775P	0.604 ms	0 - 23 MB	NPU
XLSR	TFLITE	w8a8	Qualcomm® SA8650P	0.604 ms	0 - 23 MB	NPU
XLSR	TFLITE	w8a8	Qualcomm® SA8255P	0.604 ms	0 - 23 MB	NPU
XLSR	TFLITE	w8a8	Qualcomm® SA7255P	0.96 ms	0 - 22 MB	NPU
XLSR	TFLITE	w8a8	Snapdragon® 7 Gen 4 Mobile	0.419 ms	0 - 19 MB	NPU
XLSR	TFLITE	w8a8	Qualcomm® SA8295P	0.79 ms	0 - 18 MB	NPU
XLSR	TFLITE	w8a8	Qualcomm® QCM6690	1.614 ms	0 - 19 MB	NPU
XLSR	TFLITE	w8a8	Snapdragon® 8 Elite For Galaxy Mobile	0.233 ms	0 - 22 MB	NPU
XLSR	TFLITE	w8a8	Qualcomm® QCS9075	0.587 ms	0 - 3 MB	NPU
XLSR	TFLITE	w8a8	Qualcomm® QCS8450 (Proxy)	0.477 ms	0 - 30 MB	NPU
XLSR	TFLITE	w8a8	Qualcomm® QCS7790	0.419 ms	0 - 19 MB	NPU
XLSR	TFLITE	w8a8	Qualcomm® QCS8750	0.233 ms	0 - 22 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