Mining Hardware Evolution and the AI/HPC Pivot

Few industries have compressed as much engineering progress into as little time as Bitcoin mining. From January 2009, when Satoshi Nakamoto mined the genesis block on a single CPU, to September 2025, when the network crossed one zettahash per second, the total computational power of the Bitcoin network grew by roughly **fourteen orders of magnitude in less than seventeen years**. This is the steepest sustained capability growth of any computing system in human history. The story unfolds in four hardware eras, each defined by a single technological substrate and ended decisively by the next. **CPU mining (January 2009 - mid-2010).** Satoshi mined block 0 on a regular consumer CPU. The early Bitcoin client included a built-in mining function; running it on a laptop produced perhaps **7 megahashes per second (MH/s)**. That was enough to compete because the entire network at the end of 2009 contained perhaps a few dozen miners. Hal Finney, the first person other than Satoshi to receive a Bitcoin transaction, mined on a desktop. So did the legendary Laszlo Hanyecz, whose ten-thousand-BTC pizza purchase in May 2010 is now the most expensive meal in history. CPUs were obsolete by late 2010. **GPU mining (October 2010 - 2013).** In late 2010, programmer ArtForz published code demonstrating that graphics cards could compute SHA-256 hashes vastly faster than CPUs — a single high-end GPU produced perhaps **100 MH/s** initially, with multi-GPU rigs reaching **100 GH/s** as the era matured. Bitcoin's entire network hashrate crossed 100 GH/s in 2010. The transition was abrupt: CPU miners who did not migrate were earning effectively nothing within months. Mining moved from desktop hobby to dedicated rigs, with garage operations stacking eight GPUs against a basement breaker panel. **FPGA mining (2011 - 2013).** Field-programmable gate arrays — chips that can be reconfigured for specific computations — briefly displaced GPUs in 2011-2012. FPGAs offered better hashes-per-watt than GPUs but worse than what was coming next. Their reign was short, perhaps eighteen months. The FPGA era is mostly remembered for being the bridge that proved specialized silicon would dominate. **ASIC mining (2013 - present).** In January 2013, **Avalon ASICs** (built by Canaan Creative) shipped the first generation of **Application-Specific Integrated Circuits** designed solely for SHA-256 hashing. The performance jump was staggering: one Avalon batch could match the entire prior network's hashrate. Bitcoin's network hashrate hit **6 PH/s (petahashes per second) by late 2013**, then **1 EH/s (exahash per second) in January 2016**, then **100 EH/s in September 2019**, then **600 EH/s by mid-2024**, and finally **1 ZH/s (zettahash per second) on September 2, 2025**. From 7 MH/s to 1 ZH/s is a factor of approximately **140 trillion** — roughly 10^14 — in less than seventeen years. By 2026, every economically relevant mining operation runs ASICs. CPUs, GPUs, and FPGAs are historical curiosities. The hardware game is now a fight between a small number of silicon-design houses and foundries.