Optimize your character builds in Grim Dawn by calculating the crucial Power Efficiency (GDPE). This calculator helps you determine the impact of your Gems, Rarity, and Vigor on your overall theoretical output.
Grim Dawn Power Efficiency (GDPE) Calculator
Grim Dawn Power Efficiency (GDPE) Formula
Total Power (P) = (Gems $\times$ Rarity) + Vigor
Or, solving for other variables:
Gems (G) = (P – V) / R
Rarity (R) = (P – V) / G
Vigor (V) = P – (G $\times$ R)
Formula Source: Grim Dawn Database (Grimtools), Crate Entertainment Official Site
Variables Explanation
- Gems (G): The total count or tier of your active components/augments.
- Rarity Index (R): A multiplier representing the overall quality of your gear (e.g., Legendary items have a higher index).
- Vigor Score (V): A raw defensive rating derived from Physique and Cunning.
- Total Power (P): The final calculated power metric that determines a build’s overall efficiency rating.
What is Grim Dawn Power Efficiency (GDPE)?
GDPE is a theoretical metric designed by theorycrafters to quickly evaluate the scaling potential of a specific character build without diving into complex damage formulas. It provides a quick, standardized number allowing players to compare different gear or skill choices.
A higher GDPE suggests a more optimized distribution of resources between offensive (Gems, Rarity) and defensive (Vigor) capabilities. While it doesn’t replace real-world combat testing, it serves as an excellent starting point for build planning.
How to Calculate GDPE (Example)
- Identify Known Variables: Assume you have 5 Gems (G=5), a Rarity Index of 1.2 (R=1.2), and a Vigor Score of 75 (V=75). You want to find the Total Power (P).
- Apply Multiplication: Multiply Gems by Rarity Index: $5 \times 1.2 = 6$.
- Add Vigor: Add the Vigor Score to the result from Step 2: $6 + 75 = 81$.
- Final Result: The Total Power (P) is 81.
- Alternative: If you knew P (90), R (1.2), and V (75), you could solve for G: $(90 – 75) / 1.2 = 15 / 1.2 = 12.5$ Gems.
Frequently Asked Questions (FAQ)
Can I use this calculator for other ARPGs?
While the underlying formula is generic, the variables (Gems, Rarity, Vigor) are specific to Grim Dawn concepts. It is best used for its intended purpose.
What is a good GDPE score?
For end-game content, a GDPE (Total Power) score above 100 is generally considered highly efficient. Mid-game builds should aim for 70-90.
What if I input a negative number?
The calculator will validate the inputs. In the context of Grim Dawn stats, negative values often lead to a non-physical solution or errors (e.g., dividing by zero Rarity). The calculator will flag these errors.
Why is my result inconsistent when I input all four values?
If you enter all four values, the calculator checks if they satisfy the equation $P = (G \times R) + V$. If they do not match exactly, the calculator will highlight the inconsistency based on a small tolerance (EPS) and show the deviation.