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This question already has an answer here:

I began syncing the ethereum blockchain the other day and to my horror 2GB had downloaded with no sign of stopping. I've very limited bandwidth, so I cancelled the sync. Does anyone know how much bandwidth the first sync usually takes?

I was using geth --fast to do the sync. Would the bandwidth usage have been different if I had used parity with --warp?

marked as duplicate by niksmac, soc1c Nov 22 '16 at 14:19

This question has been asked before and already has an answer. If those answers do not fully address your question, please ask a new question.

  • This is a moving target because it is growing day by day. The previosly linked question gives you an idea with numbers for different operation modes. There is no point in opening another question. – soc1c Nov 22 '16 at 14:20