ASIC vs GPU Mining: Which Can Still Make Money?
Early Bitcoin miners used ordinary computer processors, then graphics cards (GPUs). Today, Bitcoin mining is entirely dominated by ASICs — machines built to do one thing only. Here is why, and where GPUs still fit.
What is an ASIC?
ASIC stands for application-specific integrated circuit. A Bitcoin ASIC contains chips designed solely to compute SHA-256 hashes as fast and efficiently as possible. It cannot mine other algorithms, play games or do general computing. That specialization is exactly why it is so powerful.
Run your own numbers with the free calculator: Bitcoin Mining Calculator
Open calculator →What is GPU mining?
GPUs are general-purpose processors originally built for graphics. They can mine many proof-of-work algorithms and can be repurposed for gaming, rendering or AI workloads. Before Ethereum moved to proof-of-stake in September 2022, it was the main coin for GPU miners.
Why GPUs cannot mine Bitcoin profitably
The efficiency gap is enormous. A modern Bitcoin ASIC produces over 200 TH/s at roughly 15–20 J/TH. A high-end GPU produces a tiny fraction of one terahash on SHA-256, at vastly worse efficiency.
With the Bitcoin network above 1,000 EH/s, a GPU's share is so small that it would earn fractions of a cent per day, while its electricity cost would be many times larger. You would be paying to mine.
Comparison
| Bitcoin ASIC | GPU | |
|---|---|---|
| Algorithms | One (SHA-256) | Many |
| Bitcoin profitability | Possible with cheap power | No |
| Resale / other uses | Limited to mining | Gaming, AI, rendering |
| Noise and heat | Very high | Moderate |
| Typical power | 3,000–3,700 W | 200–450 W |
| Obsolescence risk | High: newer models make old ones unprofitable | Lower, due to other uses |
What can GPUs mine today?
GPUs can mine smaller proof-of-work coins whose algorithms resist ASICs. However, those networks have much smaller markets, lower liquidity and more volatile rewards. Profitability is often thin or negative after electricity, and it depends heavily on coin prices. Check current figures carefully before buying hardware for this purpose.
Choosing an ASIC
If you are considering Bitcoin mining, compare models on:
- Efficiency (J/TH) — the most important factor for long-term viability.
- Price per TH — how much hashrate you buy per dollar.
- Cooling type — air-cooled units are loud; hydro and immersion models need extra infrastructure.
- Warranty and support, and whether you can source repairs.
- Delivery time — the network grows while you wait for shipping.
A reality check
ASICs depreciate quickly. When a new generation arrives, older machines become unprofitable for anyone without very cheap power, and their resale value falls. Always calculate profitability for today and for scenarios with higher difficulty and lower prices.
Compare machines
The Bitcoin mining calculator includes presets for popular ASICs. Switch between them to compare daily profit, efficiency and payback at your electricity price.
CryptoMathly provides educational estimates only and is not financial, investment or tax advice. Crypto assets are volatile and you can lose money. Always verify figures with a qualified professional.