Best GPUs for Mining SHA3X in 2026: Hashrate and Power Efficiency Compared
SHA3X mining performance varies significantly between modern and previous-generation graphics cards. A GPU with a high hashrate can produce strong raw output, but electricity consumption is equally important when calculating potential mining margins. This comparison uses the supplied SHA3X hashrate, power draw, VRAM, manufacturer and release-year data for eight GPUs.
The most efficient card in this group is the NVIDIA RTX 5070 Ti, while the NVIDIA RTX 5080 delivers the second-best hashrate-per-watt result. The NVIDIA RTX 5090 leads the list for absolute SHA3X hashrate, although its 420 W power draw gives it a lower efficiency result than several less powerful models.
SHA3X GPU comparison
The table below compares the exact GPU specifications and SHA3X results. Hashrate is shown in the supplied unit, while power draw represents the listed GPU power consumption in watts.
| GPU | Manufacturer | Release year | VRAM | Power draw | SHA3X hashrate |
|---|---|---|---|---|---|
| NVIDIA RTX 5090 | NVIDIA | 2025 | 32 GB | 420 W | 6210.0000 |
| NVIDIA RTX 4090 | NVIDIA | 2022 | 24 GB | 320 W | 4460.0000 |
| NVIDIA RTX 5080 | NVIDIA | 2025 | 16 GB | 240 W | 4010.0000 |
| NVIDIA RTX 5070 Ti | NVIDIA | 2025 | 16 GB | 185 W | 3260.0000 |
| NVIDIA RTX 4080 Super | NVIDIA | 2024 | 16 GB | 205 W | 3060.0000 |
| NVIDIA RTX 4080 | NVIDIA | 2022 | 16 GB | 200 W | 2950.0000 |
| AMD Radeon RX 7900 XTX | AMD | 2022 | 24 GB | 290 W | 2780.0000 |
| NVIDIA RTX 3090 Ti | NVIDIA | 2022 | 24 GB | 340 W | 2680.0000 |
Best GPUs by raw SHA3X hashrate
NVIDIA RTX 5090
The RTX 5090 is the clear leader for absolute SHA3X output, reaching 6210.0000 at a listed 420 W. Its 32 GB of VRAM is also the largest capacity in this comparison, giving it substantial headroom for demanding mining workloads and other GPU applications.
However, the 5090 is not the most efficient choice in this group. Its high power requirement means that electricity costs, cooling and electrical infrastructure should be considered carefully before building a farm around this model.
NVIDIA RTX 4090 and RTX 5080
The RTX 4090 produces 4460.0000 at 320 W and includes 24 GB of VRAM. It remains a strong high-output option, although the newer RTX 5080 reaches 4010.0000 while drawing only 240 W. The RTX 5080 has 16 GB of VRAM, so it offers lower memory capacity than the 4090 but better efficiency based on the supplied figures.
For miners prioritizing output from each individual card, the RTX 4090 ranks second. For operators balancing performance with power consumption, the RTX 5080 is more attractive because it delivers a substantial hashrate at a lower listed power draw.
NVIDIA RTX 5070 Ti and RTX 4080 models
The RTX 5070 Ti reaches 3260.0000 at 185 W and has 16 GB of VRAM. Its raw hashrate is below the RTX 5090, RTX 4090 and RTX 5080, but its combination of output and power draw makes it the strongest efficiency performer in this comparison.
The RTX 4080 Super produces 3060.0000 at 205 W, while the RTX 4080 reaches 2950.0000 at 200 W. Both cards have 16 GB of VRAM. The Super model provides a higher SHA3X hashrate, while the standard RTX 4080 uses slightly less power.
AMD Radeon RX 7900 XTX and RTX 3090 Ti
The Radeon RX 7900 XTX delivers 2780.0000 at 290 W and has 24 GB of VRAM. Its memory capacity is competitive with the RTX 4090 and RTX 3090 Ti, but its listed SHA3X output is lower than every NVIDIA card in this comparison except the RTX 3090 Ti.
The RTX 3090 Ti produces 2680.0000 at 340 W and includes 24 GB of VRAM. It offers the lowest raw hashrate and the highest power draw among the older cards listed here, making it the weakest option in this dataset for both output and efficiency.
SHA3X hashrate-per-watt ranking
Hashrate-per-watt is calculated by dividing the supplied SHA3X hashrate by the supplied power draw. This is a useful technical efficiency measure, but it is not the same as profitability: electricity pricing, pool fees, hardware cost, uptime, coin value and network conditions also affect mining returns.
| Rank | GPU | SHA3X hashrate | Power draw | Hashrate per watt |
|---|---|---|---|---|
| 1 | NVIDIA RTX 5070 Ti | 3260.0000 | 185 W | 17.62 |
| 2 | NVIDIA RTX 5080 | 4010.0000 | 240 W | 16.71 |
| 3 | NVIDIA RTX 4080 Super | 3060.0000 | 205 W | 14.93 |
| 4 | NVIDIA RTX 4090 | 4460.0000 | 320 W | 13.94 |
| 5 | NVIDIA RTX 5090 | 6210.0000 | 420 W | 14.79 |
| 6 | NVIDIA RTX 4080 | 2950.0000 | 200 W | 14.75 |
| 7 | AMD Radeon RX 7900 XTX | 2780.0000 | 290 W | 9.59 |
| 8 | NVIDIA RTX 3090 Ti | 2680.0000 | 340 W | 7.88 |
The RTX 5070 Ti ranks first with 17.62 hashrate per watt, followed by the RTX 5080 at 16.71. These cards may be particularly suitable for miners working with limited power capacity or elevated electricity rates. The RTX 4080 Super, RTX 4090, RTX 5090 and RTX 4080 occupy the middle of the ranking, while the RX 7900 XTX and RTX 3090 Ti are less efficient according to the supplied measurements.
Which GPU is best for a SHA3X mining rig?
The best choice depends on the rig’s objective. The RTX 5090 is the strongest option for maximum hashrate per card, and its 32 GB of VRAM is useful where memory capacity is a priority. The RTX 5070 Ti is the most compelling efficiency-focused option, producing 3260.0000 at 185 W.
The RTX 5080 provides a middle ground between raw output and efficiency, with 4010.0000 at 240 W. The RTX 4090 remains relevant for miners who value 24 GB of VRAM and 4460.0000 of output, while the RTX 4080 Super is a balanced alternative with 3060.0000 at 205 W.
Before purchasing hardware, miners should test the complete operating setup, including driver stability, cooling, fan noise, motherboard compatibility and power-supply capacity. Profitability calculations should use the actual electricity tariff and current SHA3X mining conditions rather than hashrate alone.
Conclusion
The NVIDIA RTX 5090 is the fastest SHA3X GPU in this comparison at 6210.0000, but the NVIDIA RTX 5070 Ti is the efficiency winner at 17.62 hashrate per watt. The RTX 5080 also performs strongly, combining 4010.0000 with a 240 W power draw.
Miners seeking maximum output, efficient operation or higher VRAM capacity will find different strengths across the lineup. These figures are useful for technical comparison, but final purchasing and profitability decisions should also account for electricity costs, acquisition price, pool fees, cooling and changing market conditions.
Frequently Asked Questions
Which GPU has the highest SHA3X hashrate?
The NVIDIA RTX 5090 has the highest listed SHA3X hashrate at 6210.0000. It also has 32 GB of VRAM and a listed power draw of 420 W.
Which GPU is most efficient for SHA3X mining?
The NVIDIA RTX 5070 Ti ranks first for hashrate-per-watt efficiency at 17.62. Its supplied figures are 3260.0000 SHA3X hashrate and 185 W power draw.
Is the RTX 5080 more efficient than the RTX 4090?
Yes. The RTX 5080 ranks at 16.71 hashrate per watt, compared with 13.94 for the RTX 4090. The RTX 5080 also uses 240 W, while the RTX 4090 uses 320 W in the supplied data.
Does more VRAM guarantee better SHA3X mining performance?
No. VRAM capacity is only one hardware characteristic. In this comparison, the 32 GB RTX 5090 has the highest hashrate, but the 16 GB RTX 5070 Ti achieves the best hashrate-per-watt result. Actual suitability depends on the algorithm’s memory requirements and the miner’s efficiency priorities.
