Supercomputer
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Supercomputer is a general-purpose computing system with performance many orders of magnitude above a typical server, measured in FLOPS (floating-point operations per second). Modern supercomputers reach the exascale (10¹⁸ FLOPS) and are used for climate modeling, drug discovery, nuclear simulation, and AI training.
Bitcoin vs supercomputers
A popular framing says the Bitcoin network is "more powerful than all supercomputers combined." This is both true and misleading.
True, for SHA-256. The global Bitcoin hashrate (~hundreds of exahashes per second in 2025) represents enormous specialized computational power. No collection of supercomputers could match Bitcoin's ASIC fleet at computing SHA-256 double hashes.
Misleading, for general work. Bitcoin's ASICs are single-purpose chips — they can only run SHA-256. They cannot train a neural network, forecast weather, or run any other program. A supercomputer is a flexible, programmable machine; an ASIC is a calculator that does one thing extremely fast.
Why supercomputers don't mine Bitcoin
Even the world's fastest supercomputer would mine Bitcoin at a small fraction of a single modern ASIC's efficiency, while consuming vastly more electricity per hash. General-purpose silicon simply cannot compete with specialized hashing chips. The economics rule out supercomputer mining entirely.
The same logic applies to GPU-mined coins vs supercomputers: GPUs designed for graphics and parallel math are already far more efficient at algorithms like KawPoW or Etchash than any general-purpose CPU array.
