http://www.image-net.org/ 150 provides the 64x64 and the 32x32 versions of ImageNet, as described by Chrabaszcz et al, “A Downsampled Variant of ImageNet as an Alternative to the CIFAR datasets 131”.
After downloading, the training set has 10 train_data_batches (train_data_batch1,…,10), one batch for the validation data, and the size of all the data is  14.2 GB.
So, I think there is someway to load them, without downloading the original ImageNet data, and then, resizing it. No?