Best GPUs for Cryptocurrency Mining (2025)

• VRAM: 24 GB GDDR6X
• TDP (stock): 450 W
• Power (optimised): 280–320 W
• MSRP (approx.): $1 600–2 000

The RTX 4090 is the undisputed performance king for GPU mining in 2025. Its massive 24 GB GDDR6X frame buffer and 1 008 GB/s memory bandwidth give it a commanding lead in memory-bandwidth-bound algorithms such as Autolykos2 and FishHash. Undervolting to ~280 W brings efficiency up considerably without sacrificing more than 5 % of hashrate.

• VRAM: 16 GB GDDR6X
• TDP (stock): 320 W
• Power (optimised): 185–230 W
• MSRP (approx.): $1 000–1 200

The RTX 4080 / 4080 Super provides ~75 % of the 4090's mining performance at roughly 60 % of the price, making it a compelling choice for miners who want near-flagship hashrates without the flagship price tag. The 16 GB VRAM is sufficient for all current mining algorithms.

• VRAM: 12–16 GB GDDR6X
• TDP (stock): 285–285 W
• Power (optimised): 155–175 W
• MSRP (approx.): $750–850

The 4070 Ti / Ti Super hit the sweet spot between raw hashrate and purchase price. With careful undervolting these cards can achieve an outstanding ~1.15 MH/W on Autolykos2, matching or beating older flagships at a fraction of the electricity cost.

• VRAM: 24 GB GDDR6X
• TDP (stock): 350–450 W
• Power (optimised): 240–290 W
• Street price: $700–950 (used)

The RTX 3090 / 3090 Ti remain relevant in 2025 thanks to their 24 GB VRAM — the same capacity as the RTX 4090. Used pricing has fallen significantly, making them attractive for miners who want high memory capacity on a budget. Power draw is higher than Ada equivalents, so electricity cost is the key factor.

• VRAM: 10 GB GDDR6X
• TDP (stock): 320 W
• Power (optimised): 215–240 W
• Street price: $400–550 (used)

The RTX 3080 10 GB was a mining favourite in the Ethereum era and remains competitive on Autolykos2 and Octopus. The 10 GB VRAM is the only limitation; algorithms that require 12+ GB (like some FishHash DAG sizes) will not run. On electricity-friendly markets it still delivers a solid ROI.

• VRAM: 12 GB GDDR6X
• TDP (stock): 200–220 W
• Power (optimised): 120–145 W
• MSRP (approx.): $550–650

The RTX 4070 Super is arguably the most efficient mining GPU per watt you can buy new in 2025. Undervolted to 130–145 W it can sustain ~155 MH/s on Autolykos2 — that is an efficiency of ~1.15 MH/W, better than the RTX 4090 on the same algorithm. Ideal for miners with high electricity costs.

• VRAM: 8 GB GDDR6X
• TDP (stock): 290 W
• Power (optimised): 140–160 W
• Street price: $320–400 (used)

A solid mid-range option on the second-hand market. The 8 GB VRAM is the only concern — FishHash will eventually outgrow it. For Autolykos2 and Octopus it remains very competitive at its current used prices.

• VRAM: 8 GB GDDR6
• TDP (stock): 200 W
• Power (optimised): 120–135 W
• Street price: $230–290 (used)

The 3060 Ti is the most popular budget mining GPU in 2025. At optimised settings it draws just 120–130 W while still posting 148 MH/s on Autolykos2 — an outstanding 1.13 MH/W. The low street price means ROI can be achieved faster than with newer flagship cards when electricity is expensive.

• VRAM: 24 GB GDDR6
• TDP (stock): 355 W
• Power (optimised): 195–225 W
• MSRP (approx.): $900–1 000

AMD's flagship RDNA3 card boasts 24 GB GDDR6 with 960 GB/s memory bandwidth — key for algorithms like Autolykos2 and FishHash. RDNA3 drivers have matured well; with the right settings it competes directly with the RTX 4080 at a similar price point.

• VRAM: 16 GB GDDR6
• TDP (stock): 263 W
• Power (optimised): 140–165 W
• MSRP (approx.): $480–530

The RX 7800 XT offers excellent efficiency on Autolykos2 for an AMD mid-range card. Its 16 GB VRAM is plenty for all current algorithms, and the lower purchase price compared to the 7900 series makes it an attractive option for multi-GPU rigs.

• VRAM: 16 GB GDDR6
• TDP (stock): 300 W
• Power (optimised): 145–165 W
• Street price: $300–380 (used)

RDNA2's 16 GB VRAM and high memory bandwidth make the RX 6800 XT a top performer on Autolykos2. Used pricing is very attractive in 2025 and power tuning via the AMD driver is well-documented, making this one of the best second-hand mining cards available.

• VRAM: 12 GB GDDR6
• TDP (stock): 230 W
• Power (optimised): 110–135 W
• Street price: $220–280 (used)

The RX 6700 XT offers strong value on the used market. Its 12 GB VRAM and tuned power consumption make it efficient for Autolykos2 and Octopus. It is an excellent choice for building large multi-GPU rigs on a budget.