VIT: Optimized for Qualcomm Devices

VIT is a machine learning model that can classify images from the Imagenet dataset. It can also be used as a backbone in building more complex models for specific use cases.

This is based on the implementation of VIT 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	w8a16	Universal	QAIRT 2.45, ONNX Runtime 1.27.1	Download
ONNX	w8a8	Universal	QAIRT 2.45, ONNX Runtime 1.27.1	Download
ONNX	w8a8_mixed_int16	Universal	QAIRT 2.45, ONNX Runtime 1.27.1	Download
QNN_DLC	float	Universal	QAIRT 2.45	Download
QNN_DLC	w8a16	Universal	QAIRT 2.45	Download
QNN_DLC	w8a8	Universal	QAIRT 2.45	Download
QNN_DLC	w8a8_mixed_int16	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 VIT 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 VIT on GitHub for usage instructions.

Model Details

Model Type: Model_use_case.image_classification

Model Stats:

Input resolution: 224x224
Model checkpoint: Imagenet
Model size (float): 330 MB
Model size (w8a16): 86.2 MB
Model size (w8a8): 83.2 MB
Number of parameters: 86.6M

Performance Summary

Model	Runtime	Precision	Chipset	Inference Time (ms)	Peak Memory Range (MB)	Primary Compute Unit
VIT	ONNX	float	Snapdragon® X2 Elite	3.86 ms	2 - 2 MB	NPU
VIT	ONNX	float	Snapdragon® X Elite	9.709 ms	170 - 170 MB	NPU
VIT	ONNX	float	Snapdragon® 8 Gen 3 Mobile	6.469 ms	0 - 300 MB	NPU
VIT	ONNX	float	Snapdragon® 8 Gen 1 Mobile	14.097 ms	0 - 297 MB	NPU
VIT	ONNX	float	Qualcomm® Dragonwing™ IQ-8275	12.78 ms	0 - 4 MB	NPU
VIT	ONNX	float	Qualcomm® Dragonwing™ QCS8550 (Proxy)	9.245 ms	0 - 193 MB	NPU
VIT	ONNX	float	Qualcomm® QCS8450	14.097 ms	0 - 297 MB	NPU
VIT	ONNX	float	Qualcomm® Dragonwing™ IQ-9075	11.949 ms	1 - 4 MB	NPU
VIT	ONNX	float	Qualcomm® Dragonwing™ IQ-X7181	9.709 ms	170 - 170 MB	NPU
VIT	ONNX	float	Qualcomm® Dragonwing™ Q-8750	4.592 ms	0 - 170 MB	NPU
VIT	ONNX	float	Snapdragon® 8 Elite Mobile	4.592 ms	0 - 170 MB	NPU
VIT	ONNX	float	Snapdragon® 8 Elite Gen 5 Mobile	3.544 ms	0 - 158 MB	NPU
VIT	ONNX	w8a16	Snapdragon® X2 Elite	3.572 ms	1 - 1 MB	NPU
VIT	ONNX	w8a16	Snapdragon® X Elite	8.19 ms	86 - 86 MB	NPU
VIT	ONNX	w8a16	Snapdragon® 8 Gen 3 Mobile	5.343 ms	0 - 320 MB	NPU
VIT	ONNX	w8a16	Snapdragon® 8 Gen 1 Mobile	9.332 ms	0 - 322 MB	NPU
VIT	ONNX	w8a16	Qualcomm® Dragonwing™ QCS6490	38.497 ms	0 - 3 MB	NPU
VIT	ONNX	w8a16	Qualcomm® Dragonwing™ IQ-8275	7.445 ms	0 - 4 MB	NPU
VIT	ONNX	w8a16	Qualcomm® Dragonwing™ QCS8550 (Proxy)	7.795 ms	0 - 3 MB	NPU
VIT	ONNX	w8a16	Qualcomm® QCS8450	9.332 ms	0 - 322 MB	NPU
VIT	ONNX	w8a16	Qualcomm® Dragonwing™ IQ-9075	7.927 ms	0 - 3 MB	NPU
VIT	ONNX	w8a16	Qualcomm® Dragonwing™ IQ-X7181	8.19 ms	86 - 86 MB	NPU
VIT	ONNX	w8a16	Qualcomm® Dragonwing™ Q-6690	112.719 ms	0 - 464 MB	NPU
VIT	ONNX	w8a16	Qualcomm® Dragonwing™ Q-7790	9.696 ms	0 - 403 MB	NPU
VIT	ONNX	w8a16	Qualcomm® Dragonwing™ Q-8750	4.081 ms	0 - 263 MB	NPU
VIT	ONNX	w8a16	Snapdragon® 8 Elite Mobile	4.081 ms	0 - 263 MB	NPU
VIT	ONNX	w8a16	Snapdragon® 8 Elite Gen 5 Mobile	3.091 ms	0 - 267 MB	NPU
VIT	ONNX	w8a16	Snapdragon® 7 Gen 4 Mobile	9.696 ms	0 - 403 MB	NPU
VIT	ONNX	w8a8	Snapdragon® X2 Elite	15.354 ms	1 - 1 MB	NPU
VIT	ONNX	w8a8	Snapdragon® X Elite	10.946 ms	86 - 86 MB	NPU
VIT	ONNX	w8a8	Snapdragon® 8 Gen 3 Mobile	7.055 ms	0 - 335 MB	NPU
VIT	ONNX	w8a8	Snapdragon® 8 Gen 1 Mobile	14.568 ms	0 - 342 MB	NPU
VIT	ONNX	w8a8	Qualcomm® Dragonwing™ QCS6490	74.031 ms	0 - 3 MB	NPU
VIT	ONNX	w8a8	Qualcomm® Dragonwing™ IQ-8275	10.17 ms	0 - 4 MB	NPU
VIT	ONNX	w8a8	Qualcomm® Dragonwing™ QCS8550 (Proxy)	10.468 ms	0 - 98 MB	NPU
VIT	ONNX	w8a8	Qualcomm® QCS8450	14.568 ms	0 - 342 MB	NPU
VIT	ONNX	w8a8	Qualcomm® Dragonwing™ IQ-9075	9.903 ms	0 - 3 MB	NPU
VIT	ONNX	w8a8	Qualcomm® Dragonwing™ IQ-X7181	10.946 ms	86 - 86 MB	NPU
VIT	ONNX	w8a8	Qualcomm® Dragonwing™ Q-6690	212.002 ms	0 - 505 MB	NPU
VIT	ONNX	w8a8	Qualcomm® Dragonwing™ Q-7790	18.888 ms	0 - 338 MB	NPU
VIT	ONNX	w8a8	Qualcomm® Dragonwing™ Q-8750	5.957 ms	0 - 211 MB	NPU
VIT	ONNX	w8a8	Snapdragon® 8 Elite Mobile	5.957 ms	0 - 211 MB	NPU
VIT	ONNX	w8a8	Snapdragon® 8 Elite Gen 5 Mobile	4.297 ms	0 - 220 MB	NPU
VIT	ONNX	w8a8	Snapdragon® 7 Gen 4 Mobile	18.888 ms	0 - 338 MB	NPU
VIT	ONNX	w8a8_mixed_int16	Snapdragon® X2 Elite	10.713 ms	22 - 22 MB	NPU
VIT	ONNX	w8a8_mixed_int16	Snapdragon® X Elite	19.714 ms	83 - 83 MB	NPU
VIT	ONNX	w8a8_mixed_int16	Snapdragon® 8 Gen 3 Mobile	14.923 ms	16 - 518 MB	NPU
VIT	ONNX	w8a8_mixed_int16	Snapdragon® 8 Gen 1 Mobile	31.574 ms	16 - 485 MB	NPU
VIT	ONNX	w8a8_mixed_int16	Qualcomm® Dragonwing™ IQ-8275	22.533 ms	14 - 17 MB	NPU
VIT	ONNX	w8a8_mixed_int16	Qualcomm® Dragonwing™ QCS8550 (Proxy)	20.342 ms	14 - 18 MB	NPU
VIT	ONNX	w8a8_mixed_int16	Qualcomm® QCS8450	31.574 ms	16 - 485 MB	NPU
VIT	ONNX	w8a8_mixed_int16	Qualcomm® Dragonwing™ IQ-9075	22.113 ms	16 - 18 MB	NPU
VIT	ONNX	w8a8_mixed_int16	Qualcomm® Dragonwing™ IQ-X7181	19.714 ms	83 - 83 MB	NPU
VIT	ONNX	w8a8_mixed_int16	Qualcomm® Dragonwing™ Q-8750	11.764 ms	16 - 386 MB	NPU
VIT	ONNX	w8a8_mixed_int16	Snapdragon® 8 Elite Mobile	11.764 ms	16 - 386 MB	NPU
VIT	ONNX	w8a8_mixed_int16	Snapdragon® 8 Elite Gen 5 Mobile	9.625 ms	16 - 399 MB	NPU
VIT	QNN_DLC	float	Snapdragon® X2 Elite	6.978 ms	1 - 1 MB	NPU
VIT	QNN_DLC	float	Snapdragon® X Elite	12.669 ms	1 - 1 MB	NPU
VIT	QNN_DLC	float	Snapdragon® 8 Gen 3 Mobile	8.268 ms	0 - 303 MB	NPU
VIT	QNN_DLC	float	Snapdragon® 8 Gen 1 Mobile	15.455 ms	0 - 303 MB	NPU
VIT	QNN_DLC	float	Qualcomm® Dragonwing™ IQ-8275	14.939 ms	1 - 4 MB	NPU
VIT	QNN_DLC	float	Qualcomm® Dragonwing™ QCS8550 (Proxy)	11.846 ms	1 - 2 MB	NPU
VIT	QNN_DLC	float	Qualcomm® SA8775P	14.649 ms	1 - 169 MB	NPU
VIT	QNN_DLC	float	Qualcomm® SA8650P	14.649 ms	1 - 169 MB	NPU
VIT	QNN_DLC	float	Qualcomm® SA8255P	14.649 ms	1 - 169 MB	NPU
VIT	QNN_DLC	float	Qualcomm® QCS8450	15.455 ms	0 - 303 MB	NPU
VIT	QNN_DLC	float	Qualcomm® Dragonwing™ IQ-9075	14.892 ms	1 - 3 MB	NPU
VIT	QNN_DLC	float	Qualcomm® Dragonwing™ IQ-X7181	12.669 ms	1 - 1 MB	NPU
VIT	QNN_DLC	float	Qualcomm® Dragonwing™ Q-8750	6.204 ms	1 - 173 MB	NPU
VIT	QNN_DLC	float	Qualcomm® SA7255P	42.295 ms	1 - 168 MB	NPU
VIT	QNN_DLC	float	Qualcomm® SA8295P	16.197 ms	1 - 164 MB	NPU
VIT	QNN_DLC	float	Snapdragon® 8 Elite Mobile	6.204 ms	1 - 173 MB	NPU
VIT	QNN_DLC	float	Snapdragon® 8 Elite Gen 5 Mobile	5.178 ms	1 - 158 MB	NPU
VIT	QNN_DLC	w8a16	Snapdragon® X2 Elite	5.744 ms	0 - 0 MB	NPU
VIT	QNN_DLC	w8a16	Snapdragon® X Elite	13.235 ms	0 - 0 MB	NPU
VIT	QNN_DLC	w8a16	Snapdragon® 8 Gen 3 Mobile	8.698 ms	0 - 338 MB	NPU
VIT	QNN_DLC	w8a16	Qualcomm® Dragonwing™ IQ-8275	11.779 ms	0 - 3 MB	NPU
VIT	QNN_DLC	w8a16	Qualcomm® Dragonwing™ QCS8550 (Proxy)	12.392 ms	0 - 2 MB	NPU
VIT	QNN_DLC	w8a16	Qualcomm® SA8775P	12.776 ms	0 - 277 MB	NPU
VIT	QNN_DLC	w8a16	Qualcomm® SA8650P	12.776 ms	0 - 277 MB	NPU
VIT	QNN_DLC	w8a16	Qualcomm® SA8255P	12.776 ms	0 - 277 MB	NPU
VIT	QNN_DLC	w8a16	Qualcomm® Dragonwing™ IQ-9075	12.858 ms	0 - 2 MB	NPU
VIT	QNN_DLC	w8a16	Qualcomm® Dragonwing™ IQ-X7181	13.235 ms	0 - 0 MB	NPU
VIT	QNN_DLC	w8a16	Qualcomm® Dragonwing™ Q-6690	154.402 ms	0 - 477 MB	NPU
VIT	QNN_DLC	w8a16	Qualcomm® Dragonwing™ Q-7790	18.368 ms	0 - 429 MB	NPU
VIT	QNN_DLC	w8a16	Qualcomm® Dragonwing™ Q-8750	6.319 ms	0 - 277 MB	NPU
VIT	QNN_DLC	w8a16	Qualcomm® SA7255P	28.685 ms	0 - 276 MB	NPU
VIT	QNN_DLC	w8a16	Snapdragon® 8 Elite Mobile	6.319 ms	0 - 277 MB	NPU
VIT	QNN_DLC	w8a16	Snapdragon® 8 Elite Gen 5 Mobile	4.782 ms	0 - 281 MB	NPU
VIT	QNN_DLC	w8a16	Snapdragon® 7 Gen 4 Mobile	18.368 ms	0 - 429 MB	NPU
VIT	QNN_DLC	w8a8	Snapdragon® X2 Elite	5.366 ms	0 - 0 MB	NPU
VIT	QNN_DLC	w8a8	Snapdragon® X Elite	11.333 ms	0 - 0 MB	NPU
VIT	QNN_DLC	w8a8	Snapdragon® 8 Gen 3 Mobile	7.075 ms	0 - 323 MB	NPU
VIT	QNN_DLC	w8a8	Snapdragon® 8 Gen 1 Mobile	14.532 ms	0 - 333 MB	NPU
VIT	QNN_DLC	w8a8	Qualcomm® Dragonwing™ QCS6490	74.196 ms	0 - 2 MB	NPU
VIT	QNN_DLC	w8a8	Qualcomm® Dragonwing™ IQ-8275	10.161 ms	0 - 3 MB	NPU
VIT	QNN_DLC	w8a8	Qualcomm® Dragonwing™ QCS8550 (Proxy)	10.585 ms	0 - 2 MB	NPU
VIT	QNN_DLC	w8a8	Qualcomm® SA8775P	10.361 ms	0 - 201 MB	NPU
VIT	QNN_DLC	w8a8	Qualcomm® SA8650P	10.361 ms	0 - 201 MB	NPU
VIT	QNN_DLC	w8a8	Qualcomm® SA8255P	10.361 ms	0 - 201 MB	NPU
VIT	QNN_DLC	w8a8	Qualcomm® QCS8450	14.532 ms	0 - 333 MB	NPU
VIT	QNN_DLC	w8a8	Qualcomm® Dragonwing™ IQ-9075	10.035 ms	0 - 2 MB	NPU
VIT	QNN_DLC	w8a8	Qualcomm® Dragonwing™ IQ-X7181	11.333 ms	0 - 0 MB	NPU
VIT	QNN_DLC	w8a8	Qualcomm® Dragonwing™ Q-6690	265.268 ms	0 - 512 MB	NPU
VIT	QNN_DLC	w8a8	Qualcomm® Dragonwing™ Q-7790	18.618 ms	0 - 332 MB	NPU
VIT	QNN_DLC	w8a8	Qualcomm® Dragonwing™ Q-8750	6.068 ms	0 - 203 MB	NPU
VIT	QNN_DLC	w8a8	Qualcomm® SA7255P	31.183 ms	0 - 202 MB	NPU
VIT	QNN_DLC	w8a8	Qualcomm® SA8295P	17.423 ms	0 - 211 MB	NPU
VIT	QNN_DLC	w8a8	Snapdragon® 8 Elite Mobile	6.068 ms	0 - 203 MB	NPU
VIT	QNN_DLC	w8a8	Snapdragon® 8 Elite Gen 5 Mobile	4.334 ms	0 - 210 MB	NPU
VIT	QNN_DLC	w8a8	Snapdragon® 7 Gen 4 Mobile	18.618 ms	0 - 332 MB	NPU
VIT	QNN_DLC	w8a8_mixed_int16	Snapdragon® X2 Elite	5.571 ms	0 - 0 MB	NPU
VIT	QNN_DLC	w8a8_mixed_int16	Snapdragon® X Elite	12.75 ms	1 - 1 MB	NPU
VIT	QNN_DLC	w8a8_mixed_int16	Snapdragon® 8 Gen 3 Mobile	8.139 ms	0 - 478 MB	NPU
VIT	QNN_DLC	w8a8_mixed_int16	Qualcomm® Dragonwing™ IQ-8275	11.452 ms	0 - 3 MB	NPU
VIT	QNN_DLC	w8a8_mixed_int16	Qualcomm® Dragonwing™ QCS8550 (Proxy)	12.059 ms	0 - 258 MB	NPU
VIT	QNN_DLC	w8a8_mixed_int16	Qualcomm® SA8775P	11.521 ms	0 - 349 MB	NPU
VIT	QNN_DLC	w8a8_mixed_int16	Qualcomm® SA8650P	11.521 ms	0 - 349 MB	NPU
VIT	QNN_DLC	w8a8_mixed_int16	Qualcomm® SA8255P	11.521 ms	0 - 349 MB	NPU
VIT	QNN_DLC	w8a8_mixed_int16	Qualcomm® Dragonwing™ IQ-9075	11.292 ms	2 - 4 MB	NPU
VIT	QNN_DLC	w8a8_mixed_int16	Qualcomm® Dragonwing™ IQ-X7181	12.75 ms	1 - 1 MB	NPU
VIT	QNN_DLC	w8a8_mixed_int16	Qualcomm® Dragonwing™ Q-6690	220.717 ms	0 - 538 MB	NPU
VIT	QNN_DLC	w8a8_mixed_int16	Qualcomm® Dragonwing™ Q-7790	19.558 ms	0 - 372 MB	NPU
VIT	QNN_DLC	w8a8_mixed_int16	Qualcomm® Dragonwing™ Q-8750	6.723 ms	0 - 347 MB	NPU
VIT	QNN_DLC	w8a8_mixed_int16	Qualcomm® SA7255P	32.512 ms	0 - 348 MB	NPU
VIT	QNN_DLC	w8a8_mixed_int16	Snapdragon® 8 Elite Mobile	6.723 ms	0 - 347 MB	NPU
VIT	QNN_DLC	w8a8_mixed_int16	Snapdragon® 8 Elite Gen 5 Mobile	4.717 ms	0 - 343 MB	NPU
VIT	QNN_DLC	w8a8_mixed_int16	Snapdragon® 7 Gen 4 Mobile	19.558 ms	0 - 372 MB	NPU
VIT	TFLITE	float	Snapdragon® 8 Gen 3 Mobile	6.802 ms	0 - 308 MB	NPU
VIT	TFLITE	float	Snapdragon® 8 Gen 1 Mobile	15.279 ms	0 - 298 MB	NPU
VIT	TFLITE	float	Qualcomm® Dragonwing™ IQ-8275	13.271 ms	0 - 173 MB	NPU
VIT	TFLITE	float	Qualcomm® Dragonwing™ QCS8550 (Proxy)	9.325 ms	0 - 2 MB	NPU
VIT	TFLITE	float	Qualcomm® SA8775P	12.577 ms	0 - 170 MB	NPU
VIT	TFLITE	float	Qualcomm® SA8650P	12.577 ms	0 - 170 MB	NPU
VIT	TFLITE	float	Qualcomm® SA8255P	12.577 ms	0 - 170 MB	NPU
VIT	TFLITE	float	Qualcomm® QCS8450	15.279 ms	0 - 298 MB	NPU
VIT	TFLITE	float	Qualcomm® Dragonwing™ IQ-9075	12.595 ms	0 - 173 MB	NPU
VIT	TFLITE	float	Qualcomm® Dragonwing™ Q-8750	4.871 ms	0 - 180 MB	NPU
VIT	TFLITE	float	Qualcomm® SA7255P	38.55 ms	0 - 169 MB	NPU
VIT	TFLITE	float	Qualcomm® SA8295P	15.705 ms	0 - 164 MB	NPU
VIT	TFLITE	float	Snapdragon® 8 Elite Mobile	4.871 ms	0 - 180 MB	NPU
VIT	TFLITE	float	Snapdragon® 8 Elite Gen 5 Mobile	3.741 ms	0 - 166 MB	NPU
VIT	TFLITE	w8a8	Snapdragon® 8 Gen 3 Mobile	9.524 ms	0 - 473 MB	NPU
VIT	TFLITE	w8a8	Snapdragon® 8 Gen 1 Mobile	21.784 ms	0 - 464 MB	NPU
VIT	TFLITE	w8a8	Qualcomm® Dragonwing™ QCS6490	136.865 ms	1 - 100 MB	NPU
VIT	TFLITE	w8a8	Qualcomm® Dragonwing™ IQ-8275	13.742 ms	0 - 87 MB	NPU
VIT	TFLITE	w8a8	Qualcomm® Dragonwing™ QCS8550 (Proxy)	13.793 ms	0 - 2 MB	NPU
VIT	TFLITE	w8a8	Qualcomm® SA8775P	13.761 ms	0 - 342 MB	NPU
VIT	TFLITE	w8a8	Qualcomm® SA8650P	13.761 ms	0 - 342 MB	NPU
VIT	TFLITE	w8a8	Qualcomm® SA8255P	13.761 ms	0 - 342 MB	NPU
VIT	TFLITE	w8a8	Qualcomm® QCS8450	21.784 ms	0 - 464 MB	NPU
VIT	TFLITE	w8a8	Qualcomm® Dragonwing™ IQ-9075	13.65 ms	0 - 87 MB	NPU
VIT	TFLITE	w8a8	Qualcomm® Dragonwing™ Q-6690	202.274 ms	1 - 259 MB	NPU
VIT	TFLITE	w8a8	Qualcomm® Dragonwing™ Q-7790	30.833 ms	1 - 188 MB	NPU
VIT	TFLITE	w8a8	Qualcomm® Dragonwing™ Q-8750	7.775 ms	0 - 341 MB	NPU
VIT	TFLITE	w8a8	Qualcomm® SA7255P	37.333 ms	0 - 341 MB	NPU
VIT	TFLITE	w8a8	Qualcomm® SA8295P	21.362 ms	0 - 333 MB	NPU
VIT	TFLITE	w8a8	Snapdragon® 8 Elite Mobile	7.775 ms	0 - 341 MB	NPU
VIT	TFLITE	w8a8	Snapdragon® 8 Elite Gen 5 Mobile	5.553 ms	0 - 349 MB	NPU
VIT	TFLITE	w8a8	Snapdragon® 7 Gen 4 Mobile	30.833 ms	1 - 188 MB	NPU

License

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

References

Community

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Paper for qualcomm/VIT

An Image is Worth 16x16 Words: Transformers for Image Recognition at Scale

Paper • 2010.11929 • Published Oct 22, 2020 • 23