# Comparison

<table><thead><tr><th width="241">Attributes</th><th width="221">Bitcoin</th><th width="223">Ethereum</th><th width="222">Polkadot</th><th>Script Network</th></tr></thead><tbody><tr><td>Transactional Throughput</td><td>5</td><td>13</td><td>166</td><td>1000+</td></tr><tr><td>Transactional Finality</td><td>10 Min</td><td>5 Min</td><td>2 Min</td><td>2 Sec</td></tr><tr><td>Energy Efficient</td><td>No ASIC-Optimal</td><td>No GPU-Optimal</td><td>Yes CPU-Optimal</td><td>Yes CPU-Optimal</td></tr><tr><td>Number Of Validators</td><td>3 Pools w/51% hash rate</td><td>2 Pools w/51% hash rate</td><td>&#x3C; 200 nodes relay chain</td><td>10-15 nodes</td></tr><tr><td>Sybil Protection</td><td>Proof of work</td><td>Proof of stake</td><td>Proof of stake</td><td>Proof of stake</td></tr><tr><td>Storage Ability/Content</td><td>No</td><td>No</td><td>No</td><td>Yes</td></tr><tr><td>Safety Threshold</td><td>51%</td><td>51%</td><td>33%</td><td>80%</td></tr></tbody></table>


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