GPU Mining Profitability Calculator – How to Compare GPUs in 2025

GPU mining profitability hinges on a card’s hashrate, power draw and local electricity price, which calculators translate into daily earnings after costs [1]. Tools such as CalculatorMining and MinerCompare let users model profit under different coin prices, difficulty trends and power‑rate tiers, and even rank GPUs side‑by‑side [2].

Key takeaways

• Profit per watt is the primary efficiency metric for miners, normalizing earnings across cards [1].
• The RTX 4070 Ti and RX 7900 XTX often lead in efficiency for various algorithms, according to the calculator’s recommendations [1].
• MinerCompare lists the RTX 4080 Super (185 Sol/s, 240 W) as the highest‑earning single GPU at $6.59 daily, followed closely by the RTX 4090 with the same hashrate [2].
• A typical 6‑GPU rig consumes 800–1,800 W, costing $58–$130 per month at $0.10/kWh [1].
• Break‑even days are calculated by dividing purchase price by net daily profit, but real payback is usually 20‑40 % longer due to rising difficulty and price volatility [1].

How calculators estimate profit

Both calculators start with the same core formula: daily revenue equals the miner’s share of the network (hashrate ÷ network hashrate) multiplied by block reward and blocks per day [1]. That revenue is converted to fiat using the current coin price, then electricity cost is subtracted (power W ÷ 1000 × 24 × electricity rate) [1]. MinerCompare adds pool fees (typically 1–2 %) and system overhead (50–100 W) for more precise net profit [2]. Users can input custom electricity rates, allowing the tools to show how profitability shifts at rates below $0.08/kWh—where mining remains viable [1].

Comparing top GPUs

MinerCompare’s real‑time table ranks GPUs by daily profit for the Zhash algorithm. The RTX 4080 Super and RTX 4090 each deliver 185 Sol/s at roughly 240–250 W, earning about $6.58 per day [2]. The Radeon RX 7900 XTX follows with 155 Sol/s at 230 W and $5.46 daily profit [2]. Older cards such as the RTX 3090 (155 Sol/s, 290 W) generate $5.35 per day, while the RTX 3070 Ti (110 Sol/s, 180 W) earns $3.84 [2]. Efficiency metrics from CalculatorMining highlight that a GPU earning $2/day at 200 W (0.01 $/W) outperforms one earning $3/day at 350 W (0.0086 $/W), underscoring why profit per watt matters more than raw profit [1].

Why it matters

Accurate profitability modeling helps miners decide whether to invest in new hardware, adjust power limits or switch algorithms as network conditions evolve. The calculators show that even modest electricity rates can keep mining marginally profitable after Ethereum’s shift to proof‑of‑stake, but margins are thin and depend heavily on efficiency [1]. As difficulty rises and coin prices fluctuate, the break‑even period lengthens, making ongoing monitoring essential for sustainable operations.