GPUs vs ASICs
Can GPU rigs mine Bitcoin directly?
SHA-256 is completely ASIC-dominated. GPUs excel at ASIC-resistant algorithms like KawPow, Etchash, and Autolykos. See which coins GPUs can mine.
No. Bitcoin uses the SHA-256 algorithm which is completely dominated by purpose-built ASICs. A top-end GPU produces roughly 0.001% of what a single ASIC produces on SHA-256 — you would literally spend more on electricity than you'd earn in BTC.
What GPUs excel at: ASIC-resistant algorithms designed specifically to keep mining decentralised. These include:
| Algorithm | Coins | Why GPU-Optimised |
|---|---|---|
| KawPow | RVN, EVR | Memory-hard, resists ASIC development |
| Etchash | ETC | Modified Ethash, requires large GPU memory |
| Autolykos | ERG | Memory-bound, designed for GPU fairness |
| ProgPow | EPIC, ZANO | Programmable PoW, mirrors GPU architecture |
| Blake3 | ALPH, DCR | Modern hash, energy-efficient on GPUs |
| Cuckatoo/Cuckaroo | GRIN, XTM | Cuckoo-cycle, memory-intensive |
ℹ️ These algorithms are deliberately designed so that building an ASIC for them would cost as much as a general-purpose GPU — removing the ASIC advantage entirely.