What is GPU (Graphics Processing Unit)?
Crypto Glossary Definition
A computer optimized for computing visual display information. It typically has a highly parallel architecture and excels at math-heavy calculations (and therefore, much better at mining cryptocurrencies than a regular CPU).
Why GPU (Graphics Processing Unit) Matters
Before ASICs took over Bitcoin mining, GPUs were the standard mining hardware — they remain the primary hardware for mining coins whose algorithms are intentionally designed to resist ASIC dominance.
GPU (Graphics Processing Unit) in Practice
A small home-mining enthusiast named Priya decides to try mining Ravencoin, a coin whose developers deliberately designed its algorithm to resist ASIC dominance. She builds a rig with six mid-range graphics cards instead of buying a specialized ASIC miner, because Ravencoin's proof-of-work algorithm is memory-hard and parallelizable in a way that favors GPU architecture over the specialized circuits ASICs use. Each card in her rig performs thousands of simultaneous hash calculations, splitting the mining workload across many small cores rather than relying on a handful of powerful ones, which is exactly the kind of parallel math GPUs were originally built for in video games. Over a few months she notices her electricity bill climbing, so she checks profitability calculators that factor in her local power rate, the coin's current mining difficulty, and the hypothetical price of Ravencoin, before deciding whether to keep six cards running or sell two off. When a new coin launches with a similar GPU-friendly algorithm, she can often just point her existing rig at the new network instead of buying entirely new hardware, which is one of the enduring appeals of GPU mining over ASICs: the same physical cards can be repurposed across many different mineable coins rather than being locked into one specific chip design for one specific chain.
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