Resnet50 Test Quantization 
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CoreMLTools 8.01b, M4 iPad Pro 16GB, iPad OS18.1 beta<br>
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8-bit<br>
resnet50-LUT8-iOS17.mlpackage 1.08 ms<br>
resnet50-W8A8-iOS17.mlpackage 0.81 ms<br>

4-bit<br>
resnet50-LUT4-iOS17.mlpackage 0.93 ms<br>	
resnet50-W4A8-iOS18.mlpackage 0.68 ms<br>