Multi-GPU Rig Scaling Explained
Building a mining rig with multiple graphics cards significantly increases computational power, but it also proportionally raises both rewards and operational costs. The GPU Mining ROI Tool handles this complexity automatically through precise linear scaling, ensuring accurate profitability projections for any rig size.
When users specify the number of GPUs in the advanced options, the tool treats all cards as identical in performance and power draw. It multiplies the per-GPU hash rate by the total count to determine the rig's effective hash rate. This value directly influences daily reward calculations, whether entered manually or derived from network statistics.
Power consumption follows the same scaling principle. The watts per GPU are multiplied by the number of cards to yield total rig power draw. This cumulative figure is then used in the daily electricity cost formula, reflecting the reality that larger rigs consume substantially more energy.
Hardware investment cost scales identically. The cost entered per GPU is multiplied by the total number of cards, providing the complete upfront investment required for payback period calculation. This ensures the break-even timeline accounts for the full capital outlay.
The beauty of this approach lies in its linearity. Doubling the number of GPUs doubles both the hash rate and rewards while also doubling power consumption and electricity expenses. In ideal conditions, daily profit scales proportionally, leaving the payback period unchanged from a single-card setup.
However, real-world factors can disrupt this balance. Additional maintenance costs for larger rigs, such as enhanced cooling systems or higher facility overhead, are accommodated through the monthly maintenance field. These expenses are prorated daily and subtracted from scaled profits.
Pool fees apply to the total rig reward rather than per card, maintaining accuracy as percentage deductions naturally scale with earnings. The tool's design ensures no hidden assumptions or approximations that could distort results for larger operations.
This scaling capability allows miners to compare configurations easily. Entering different GPU counts reveals how economies of scale affect profitability, helping decide between compact single-card setups and expansive multi-card rigs.
Understanding rig scaling also highlights important considerations like power supply capacity, thermal management, and electrical infrastructure limits that accompany larger builds. The tool provides the financial clarity needed to evaluate these trade-offs objectively.
Scaling Components
- Hash rate multiplies directly with GPU count
- Power consumption increases proportionally
- Total hardware cost reflects full investment
- Rewards scale with effective hash rate
- Electricity expenses match increased draw
- Maintenance costs can be added separately
- Payback period adjusts to net profit changes
Proper scaling reveals whether bigger rigs truly improve profitability or merely amplify losses.