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 1.24.3	Download
ONNX	w8a8	Universal	QAIRT 2.42, ONNX Runtime 1.24.3	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	0.423 ms	0 - 22 MB	NPU
XLSR	ONNX	float	Snapdragon® 8 Elite Mobile	0.506 ms	0 - 18 MB	NPU
XLSR	ONNX	float	Snapdragon® X2 Elite	0.4 ms	6 - 6 MB	NPU
XLSR	ONNX	float	Snapdragon® X Elite	1.061 ms	9 - 9 MB	NPU
XLSR	ONNX	float	Snapdragon® X Elite	1.061 ms	9 - 9 MB	NPU
XLSR	ONNX	float	Snapdragon® 8 Gen 3 Mobile	0.65 ms	0 - 29 MB	NPU
XLSR	ONNX	float	Qualcomm® QCS8550 (Proxy)	0.935 ms	0 - 2 MB	NPU
XLSR	ONNX	float	Qualcomm® QCS9075	1.233 ms	8 - 11 MB	NPU
XLSR	ONNX	float	Snapdragon® 8 Elite For Galaxy Mobile	0.506 ms	0 - 18 MB	NPU
XLSR	ONNX	w8a8	Snapdragon® 8 Elite Gen 5 Mobile	0.245 ms	0 - 23 MB	NPU
XLSR	ONNX	w8a8	Snapdragon® 8 Elite Mobile	0.264 ms	0 - 24 MB	NPU
XLSR	ONNX	w8a8	Snapdragon® X2 Elite	0.227 ms	1 - 1 MB	NPU
XLSR	ONNX	w8a8	Snapdragon® X Elite	0.651 ms	3 - 3 MB	NPU
XLSR	ONNX	w8a8	Snapdragon® X Elite	0.651 ms	3 - 3 MB	NPU
XLSR	ONNX	w8a8	Snapdragon® 8 Gen 3 Mobile	0.365 ms	0 - 30 MB	NPU
XLSR	ONNX	w8a8	Qualcomm® QCS6490	12.168 ms	19 - 21 MB	CPU
XLSR	ONNX	w8a8	Qualcomm® QCS8550 (Proxy)	0.549 ms	0 - 67 MB	NPU
XLSR	ONNX	w8a8	Qualcomm® QCS9075	0.702 ms	0 - 3 MB	NPU
XLSR	ONNX	w8a8	Qualcomm® QCM6690	8.508 ms	18 - 25 MB	CPU
XLSR	ONNX	w8a8	Snapdragon® 8 Elite For Galaxy Mobile	0.264 ms	0 - 24 MB	NPU
XLSR	ONNX	w8a8	Snapdragon® 7 Gen 4 Mobile	6.443 ms	20 - 26 MB	CPU
XLSR	ONNX	w8a8	Snapdragon® 7 Gen 4 Mobile	6.443 ms	20 - 26 MB	CPU
XLSR	QNN_DLC	float	Snapdragon® 8 Elite Gen 5 Mobile	0.329 ms	0 - 24 MB	NPU
XLSR	QNN_DLC	float	Snapdragon® 8 Elite Mobile	0.356 ms	0 - 25 MB	NPU
XLSR	QNN_DLC	float	Snapdragon® X2 Elite	0.479 ms	0 - 0 MB	NPU
XLSR	QNN_DLC	float	Snapdragon® X Elite	0.904 ms	0 - 0 MB	NPU
XLSR	QNN_DLC	float	Snapdragon® X Elite	0.904 ms	0 - 0 MB	NPU
XLSR	QNN_DLC	float	Snapdragon® 8 Gen 3 Mobile	0.457 ms	0 - 30 MB	NPU
XLSR	QNN_DLC	float	Qualcomm® QCS8275 (Proxy)	2.18 ms	0 - 20 MB	NPU
XLSR	QNN_DLC	float	Qualcomm® QCS8550 (Proxy)	0.767 ms	0 - 2 MB	NPU
XLSR	QNN_DLC	float	Qualcomm® SA8775P	1.16 ms	0 - 22 MB	NPU
XLSR	QNN_DLC	float	Qualcomm® SA8775P	1.16 ms	0 - 22 MB	NPU
XLSR	QNN_DLC	float	Qualcomm® SA8775P	1.16 ms	0 - 22 MB	NPU
XLSR	QNN_DLC	float	Qualcomm® QCS9075	1.105 ms	0 - 5 MB	NPU
XLSR	QNN_DLC	float	Qualcomm® QCS8450 (Proxy)	1.057 ms	0 - 31 MB	NPU
XLSR	QNN_DLC	float	Qualcomm® SA7255P	2.18 ms	0 - 20 MB	NPU
XLSR	QNN_DLC	float	Qualcomm® SA8295P	1.397 ms	0 - 18 MB	NPU
XLSR	QNN_DLC	float	Snapdragon® 8 Elite For Galaxy Mobile	0.356 ms	0 - 25 MB	NPU
XLSR	QNN_DLC	w8a8	Snapdragon® 8 Elite Gen 5 Mobile	0.18 ms	0 - 24 MB	NPU
XLSR	QNN_DLC	w8a8	Snapdragon® 8 Elite Mobile	0.214 ms	0 - 21 MB	NPU
XLSR	QNN_DLC	w8a8	Snapdragon® X2 Elite	0.27 ms	0 - 0 MB	NPU
XLSR	QNN_DLC	w8a8	Snapdragon® X Elite	0.489 ms	0 - 0 MB	NPU
XLSR	QNN_DLC	w8a8	Snapdragon® X Elite	0.489 ms	0 - 0 MB	NPU
XLSR	QNN_DLC	w8a8	Snapdragon® 8 Gen 3 Mobile	0.25 ms	0 - 30 MB	NPU
XLSR	QNN_DLC	w8a8	Qualcomm® QCS6490	1.391 ms	0 - 2 MB	NPU
XLSR	QNN_DLC	w8a8	Qualcomm® QCS8275 (Proxy)	0.921 ms	0 - 21 MB	NPU
XLSR	QNN_DLC	w8a8	Qualcomm® QCS8550 (Proxy)	0.403 ms	0 - 67 MB	NPU
XLSR	QNN_DLC	w8a8	Qualcomm® SA8775P	0.584 ms	0 - 23 MB	NPU
XLSR	QNN_DLC	w8a8	Qualcomm® SA8775P	0.584 ms	0 - 23 MB	NPU
XLSR	QNN_DLC	w8a8	Qualcomm® SA8775P	0.584 ms	0 - 23 MB	NPU
XLSR	QNN_DLC	w8a8	Qualcomm® QCS9075	0.557 ms	2 - 4 MB	NPU
XLSR	QNN_DLC	w8a8	Qualcomm® QCM6690	1.585 ms	0 - 19 MB	NPU
XLSR	QNN_DLC	w8a8	Qualcomm® QCS8450 (Proxy)	0.468 ms	0 - 30 MB	NPU
XLSR	QNN_DLC	w8a8	Qualcomm® SA7255P	0.921 ms	0 - 21 MB	NPU
XLSR	QNN_DLC	w8a8	Qualcomm® SA8295P	0.768 ms	0 - 18 MB	NPU
XLSR	QNN_DLC	w8a8	Snapdragon® 8 Elite For Galaxy Mobile	0.214 ms	0 - 21 MB	NPU
XLSR	QNN_DLC	w8a8	Snapdragon® 7 Gen 4 Mobile	0.407 ms	0 - 20 MB	NPU
XLSR	QNN_DLC	w8a8	Snapdragon® 7 Gen 4 Mobile	0.407 ms	0 - 20 MB	NPU
XLSR	TFLITE	float	Snapdragon® 8 Elite Gen 5 Mobile	0.798 ms	0 - 25 MB	NPU
XLSR	TFLITE	float	Snapdragon® 8 Elite Mobile	0.987 ms	0 - 27 MB	NPU
XLSR	TFLITE	float	Snapdragon® 8 Gen 3 Mobile	1.414 ms	0 - 31 MB	NPU
XLSR	TFLITE	float	Qualcomm® QCS8275 (Proxy)	4.713 ms	3 - 25 MB	NPU
XLSR	TFLITE	float	Qualcomm® QCS8550 (Proxy)	2.222 ms	0 - 2 MB	NPU
XLSR	TFLITE	float	Qualcomm® SA8775P	2.662 ms	0 - 23 MB	NPU
XLSR	TFLITE	float	Qualcomm® SA8775P	2.662 ms	0 - 23 MB	NPU
XLSR	TFLITE	float	Qualcomm® SA8775P	2.662 ms	0 - 23 MB	NPU
XLSR	TFLITE	float	Qualcomm® QCS9075	2.596 ms	3 - 8 MB	NPU
XLSR	TFLITE	float	Qualcomm® QCS8450 (Proxy)	2.515 ms	0 - 32 MB	NPU
XLSR	TFLITE	float	Qualcomm® SA7255P	4.713 ms	3 - 25 MB	NPU
XLSR	TFLITE	float	Qualcomm® SA8295P	3.14 ms	0 - 18 MB	NPU
XLSR	TFLITE	float	Snapdragon® 8 Elite For Galaxy Mobile	0.987 ms	0 - 27 MB	NPU
XLSR	TFLITE	w8a8	Snapdragon® 8 Elite Gen 5 Mobile	0.18 ms	0 - 24 MB	NPU
XLSR	TFLITE	w8a8	Snapdragon® 8 Elite Mobile	0.227 ms	0 - 21 MB	NPU
XLSR	TFLITE	w8a8	Snapdragon® 8 Gen 3 Mobile	0.265 ms	0 - 29 MB	NPU
XLSR	TFLITE	w8a8	Qualcomm® QCS6490	1.083 ms	0 - 3 MB	NPU
XLSR	TFLITE	w8a8	Qualcomm® QCS8275 (Proxy)	0.962 ms	0 - 21 MB	NPU
XLSR	TFLITE	w8a8	Qualcomm® QCS8550 (Proxy)	0.398 ms	0 - 2 MB	NPU
XLSR	TFLITE	w8a8	Qualcomm® SA8775P	0.598 ms	0 - 23 MB	NPU
XLSR	TFLITE	w8a8	Qualcomm® SA8775P	0.598 ms	0 - 23 MB	NPU
XLSR	TFLITE	w8a8	Qualcomm® SA8775P	0.598 ms	0 - 23 MB	NPU
XLSR	TFLITE	w8a8	Qualcomm® QCS9075	0.602 ms	0 - 3 MB	NPU
XLSR	TFLITE	w8a8	Qualcomm® QCM6690	1.623 ms	0 - 18 MB	NPU
XLSR	TFLITE	w8a8	Qualcomm® QCS8450 (Proxy)	0.476 ms	0 - 30 MB	NPU
XLSR	TFLITE	w8a8	Qualcomm® SA7255P	0.962 ms	0 - 21 MB	NPU
XLSR	TFLITE	w8a8	Qualcomm® SA8295P	0.81 ms	0 - 18 MB	NPU
XLSR	TFLITE	w8a8	Snapdragon® 8 Elite For Galaxy Mobile	0.227 ms	0 - 21 MB	NPU
XLSR	TFLITE	w8a8	Snapdragon® 7 Gen 4 Mobile	0.419 ms	0 - 19 MB	NPU
XLSR	TFLITE	w8a8	Snapdragon® 7 Gen 4 Mobile	0.419 ms	0 - 19 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