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 1.25.0	Download
ONNX	w8a8	Universal	QAIRT 2.45, 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® X2 Elite	0.372 ms	8 - 8 MB	NPU
XLSR	ONNX	float	Snapdragon® X Elite	0.9 ms	8 - 8 MB	NPU
XLSR	ONNX	float	Snapdragon® 8 Gen 3 Mobile	0.573 ms	0 - 29 MB	NPU
XLSR	ONNX	float	Snapdragon® 8 Gen 1 Mobile	1.208 ms	0 - 35 MB	NPU
XLSR	ONNX	float	Qualcomm® Dragonwing™ QCS8550 (Proxy)	0.872 ms	0 - 66 MB	NPU
XLSR	ONNX	float	Qualcomm® QCS8450	1.208 ms	0 - 35 MB	NPU
XLSR	ONNX	float	Qualcomm® Dragonwing™ IQ-9075	1.175 ms	7 - 10 MB	NPU
XLSR	ONNX	float	Snapdragon® 8 Elite Gen 5 Mobile	0.402 ms	0 - 19 MB	NPU
XLSR	ONNX	float	Snapdragon® 8 Elite Mobile	0.473 ms	0 - 19 MB	NPU
XLSR	ONNX	float	Qualcomm® Dragonwing™ Q-8750	0.473 ms	0 - 19 MB	NPU
XLSR	ONNX	float	Qualcomm® Dragonwing™ IQ-X7181	0.9 ms	8 - 8 MB	NPU
XLSR	ONNX	w8a8	Snapdragon® X2 Elite	0.263 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	0.425 ms	22 - 55 MB	NPU
XLSR	ONNX	w8a8	Snapdragon® 8 Gen 1 Mobile	0.732 ms	1 - 39 MB	NPU
XLSR	ONNX	w8a8	Qualcomm® Dragonwing™ QCS6490	3.298 ms	2 - 4 MB	NPU
XLSR	ONNX	w8a8	Qualcomm® Dragonwing™ QCS8550 (Proxy)	0.642 ms	0 - 29 MB	NPU
XLSR	ONNX	w8a8	Qualcomm® QCS8450	0.732 ms	1 - 39 MB	NPU
XLSR	ONNX	w8a8	Snapdragon® 8 Elite Mobile	0.312 ms	0 - 23 MB	NPU
XLSR	ONNX	w8a8	Snapdragon® 7 Gen 4 Mobile	0.659 ms	0 - 23 MB	NPU
XLSR	ONNX	w8a8	Snapdragon® 8 Elite Gen 5 Mobile	0.278 ms	0 - 25 MB	NPU
XLSR	ONNX	w8a8	Qualcomm® Dragonwing™ IQ-9075	0.783 ms	0 - 3 MB	NPU
XLSR	ONNX	w8a8	Qualcomm® Dragonwing™ Q-6690	2.865 ms	0 - 138 MB	NPU
XLSR	ONNX	w8a8	Qualcomm® Dragonwing™ Q-7790	0.659 ms	0 - 23 MB	NPU
XLSR	ONNX	w8a8	Qualcomm® Dragonwing™ Q-8750	0.312 ms	0 - 23 MB	NPU
XLSR	ONNX	w8a8	Qualcomm® Dragonwing™ IQ-X7181	0.643 ms	3 - 3 MB	NPU
XLSR	QNN_DLC	float	Snapdragon® X2 Elite	0.399 ms	0 - 0 MB	NPU
XLSR	QNN_DLC	float	Snapdragon® X Elite	0.855 ms	0 - 0 MB	NPU
XLSR	QNN_DLC	float	Snapdragon® 8 Gen 3 Mobile	0.459 ms	0 - 29 MB	NPU
XLSR	QNN_DLC	float	Snapdragon® 8 Gen 1 Mobile	1.05 ms	0 - 35 MB	NPU
XLSR	QNN_DLC	float	Qualcomm® QCS8275	2.186 ms	0 - 21 MB	NPU
XLSR	QNN_DLC	float	Qualcomm® Dragonwing™ QCS8550 (Proxy)	0.778 ms	0 - 2 MB	NPU
XLSR	QNN_DLC	float	Qualcomm® SA8775P	1.141 ms	0 - 23 MB	NPU
XLSR	QNN_DLC	float	Qualcomm® SA8650P	1.141 ms	0 - 23 MB	NPU
XLSR	QNN_DLC	float	Qualcomm® SA8255P	1.141 ms	0 - 23 MB	NPU
XLSR	QNN_DLC	float	Qualcomm® QCS8450	1.05 ms	0 - 35 MB	NPU
XLSR	QNN_DLC	float	Qualcomm® Dragonwing™ IQ-9075	1.018 ms	0 - 5 MB	NPU
XLSR	QNN_DLC	float	Snapdragon® 8 Elite Gen 5 Mobile	0.334 ms	0 - 22 MB	NPU
XLSR	QNN_DLC	float	Qualcomm® SA7255P	2.186 ms	0 - 21 MB	NPU
XLSR	QNN_DLC	float	Snapdragon® 8 Elite Mobile	0.366 ms	0 - 21 MB	NPU
XLSR	QNN_DLC	float	Qualcomm® SA8295P	1.41 ms	0 - 18 MB	NPU
XLSR	QNN_DLC	float	Qualcomm® Dragonwing™ Q-8750	0.366 ms	0 - 21 MB	NPU
XLSR	QNN_DLC	float	Qualcomm® Dragonwing™ IQ-X7181	0.855 ms	0 - 0 MB	NPU
XLSR	QNN_DLC	w8a8	Snapdragon® X2 Elite	0.262 ms	0 - 0 MB	NPU
XLSR	QNN_DLC	w8a8	Snapdragon® X Elite	0.5 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	0.463 ms	0 - 35 MB	NPU
XLSR	QNN_DLC	w8a8	Qualcomm® Dragonwing™ QCS6490	1.412 ms	0 - 2 MB	NPU
XLSR	QNN_DLC	w8a8	Qualcomm® QCS8275	0.916 ms	0 - 21 MB	NPU
XLSR	QNN_DLC	w8a8	Qualcomm® Dragonwing™ QCS8550 (Proxy)	0.385 ms	0 - 60 MB	NPU
XLSR	QNN_DLC	w8a8	Qualcomm® SA8775P	0.594 ms	0 - 22 MB	NPU
XLSR	QNN_DLC	w8a8	Qualcomm® SA8650P	0.594 ms	0 - 22 MB	NPU
XLSR	QNN_DLC	w8a8	Qualcomm® SA8255P	0.594 ms	0 - 22 MB	NPU
XLSR	QNN_DLC	w8a8	Qualcomm® QCS8450	0.463 ms	0 - 35 MB	NPU
XLSR	QNN_DLC	w8a8	Snapdragon® 8 Elite Mobile	0.214 ms	0 - 27 MB	NPU
XLSR	QNN_DLC	w8a8	Snapdragon® 7 Gen 4 Mobile	0.408 ms	0 - 20 MB	NPU
XLSR	QNN_DLC	w8a8	Snapdragon® 8 Elite Gen 5 Mobile	0.182 ms	0 - 22 MB	NPU
XLSR	QNN_DLC	w8a8	Qualcomm® Dragonwing™ IQ-9075	0.558 ms	0 - 2 MB	NPU
XLSR	QNN_DLC	w8a8	Qualcomm® Dragonwing™ Q-6690	1.6 ms	0 - 19 MB	NPU
XLSR	QNN_DLC	w8a8	Qualcomm® SA7255P	0.916 ms	0 - 21 MB	NPU
XLSR	QNN_DLC	w8a8	Qualcomm® SA8295P	0.775 ms	0 - 18 MB	NPU
XLSR	QNN_DLC	w8a8	Qualcomm® Dragonwing™ Q-7790	0.408 ms	0 - 20 MB	NPU
XLSR	QNN_DLC	w8a8	Qualcomm® Dragonwing™ Q-8750	0.214 ms	0 - 27 MB	NPU
XLSR	QNN_DLC	w8a8	Qualcomm® Dragonwing™ IQ-X7181	0.5 ms	0 - 0 MB	NPU
XLSR	TFLITE	float	Snapdragon® 8 Gen 3 Mobile	1.402 ms	0 - 31 MB	NPU
XLSR	TFLITE	float	Snapdragon® 8 Gen 1 Mobile	2.48 ms	0 - 35 MB	NPU
XLSR	TFLITE	float	Qualcomm® QCS8275	4.658 ms	3 - 25 MB	NPU
XLSR	TFLITE	float	Qualcomm® Dragonwing™ QCS8550 (Proxy)	2.211 ms	0 - 68 MB	NPU
XLSR	TFLITE	float	Qualcomm® SA8775P	2.666 ms	0 - 23 MB	NPU
XLSR	TFLITE	float	Qualcomm® SA8650P	2.666 ms	0 - 23 MB	NPU
XLSR	TFLITE	float	Qualcomm® SA8255P	2.666 ms	0 - 23 MB	NPU
XLSR	TFLITE	float	Qualcomm® QCS8450	2.48 ms	0 - 35 MB	NPU
XLSR	TFLITE	float	Qualcomm® Dragonwing™ IQ-9075	2.498 ms	3 - 8 MB	NPU
XLSR	TFLITE	float	Snapdragon® 8 Elite Gen 5 Mobile	0.788 ms	0 - 23 MB	NPU
XLSR	TFLITE	float	Qualcomm® SA7255P	4.658 ms	3 - 25 MB	NPU
XLSR	TFLITE	float	Snapdragon® 8 Elite Mobile	0.966 ms	0 - 21 MB	NPU
XLSR	TFLITE	float	Qualcomm® SA8295P	3.074 ms	0 - 19 MB	NPU
XLSR	TFLITE	float	Qualcomm® Dragonwing™ Q-8750	0.966 ms	0 - 21 MB	NPU
XLSR	TFLITE	w8a8	Snapdragon® 8 Gen 3 Mobile	0.27 ms	0 - 29 MB	NPU
XLSR	TFLITE	w8a8	Snapdragon® 8 Gen 1 Mobile	0.472 ms	0 - 35 MB	NPU
XLSR	TFLITE	w8a8	Qualcomm® Dragonwing™ QCS6490	1.085 ms	0 - 3 MB	NPU
XLSR	TFLITE	w8a8	Qualcomm® QCS8275	0.979 ms	0 - 21 MB	NPU
XLSR	TFLITE	w8a8	Qualcomm® Dragonwing™ QCS8550 (Proxy)	0.418 ms	4 - 23 MB	NPU
XLSR	TFLITE	w8a8	Qualcomm® SA8775P	0.594 ms	0 - 23 MB	NPU
XLSR	TFLITE	w8a8	Qualcomm® SA8650P	0.594 ms	0 - 23 MB	NPU
XLSR	TFLITE	w8a8	Qualcomm® SA8255P	0.594 ms	0 - 23 MB	NPU
XLSR	TFLITE	w8a8	Qualcomm® QCS8450	0.472 ms	0 - 35 MB	NPU
XLSR	TFLITE	w8a8	Snapdragon® 8 Elite Mobile	0.213 ms	0 - 25 MB	NPU
XLSR	TFLITE	w8a8	Snapdragon® 7 Gen 4 Mobile	0.42 ms	0 - 19 MB	NPU
XLSR	TFLITE	w8a8	Snapdragon® 8 Elite Gen 5 Mobile	0.184 ms	0 - 21 MB	NPU
XLSR	TFLITE	w8a8	Qualcomm® Dragonwing™ IQ-9075	0.529 ms	0 - 3 MB	NPU
XLSR	TFLITE	w8a8	Qualcomm® Dragonwing™ Q-6690	1.632 ms	0 - 18 MB	NPU
XLSR	TFLITE	w8a8	Qualcomm® SA7255P	0.979 ms	0 - 21 MB	NPU
XLSR	TFLITE	w8a8	Qualcomm® SA8295P	0.807 ms	0 - 18 MB	NPU
XLSR	TFLITE	w8a8	Qualcomm® Dragonwing™ Q-7790	0.42 ms	0 - 19 MB	NPU
XLSR	TFLITE	w8a8	Qualcomm® Dragonwing™ Q-8750	0.213 ms	0 - 25 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