The tokenizer takes care of splitting the sequence into tokens available in the tokenizer vocabulary.
thon

tokenized_sequence = tokenizer.tokenize(sequence)

The tokens are either words or subwords. Here for instance, "VRAM" wasn't in the model vocabulary, so it's been split
in "V", "RA" and "M". To indicate those tokens are not separate words but parts of the same word, a double-hash prefix
is added for "RA" and "M":
thon