DPS and Crit Chance: Thresholds for Success

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EnderA

Senior Member

03-04-2010

Quote:
Originally Posted by AutoSponge View Post
without I.E. (2x crit dmg)
base < 36.5% => stack more crit chance runes
base > 36.5% => stack more crit damage runes

with I.E. (2.5x crit dmg)
base < 56.5% => stack more crit chance runes
base > 56.5% => stack more crit damage runes
This is before the 10% nerf to crit damage. You need to recalculate the values.


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AutoSponge

Senior Member

03-04-2010

Quote:
Originally Posted by EasymodeX View Post
I doubt that. Quick analysis, assuming your original numbers are correct:

At 135 AD, 100 gold spent on AD will net the same return as crit. Quick test:
135 AD + 100/37 = 137.7.
135 AD * 1 + (100/50)/100 = 137.7.

Check.

Assuming you've spent 2500 gold on crit for a 50% crit rate, the new baseline is:

135 AD * 1.5 = 202.5 dps.

So let's spend another 100 gold.

(135 + 100/37) * 1.5 = 206.55
(135) * (1.5 + 100/50/100) = 205.2

As demonstrated: sometime before you have 50% crit chance, and after you have 135 base damage, it's better to spend 100 gold on raw damage, rather than crit.



You seem to think damage is calculated as "base damage minus armor = damage".

That's very rarely the case in games. Particularly if you mouse over the armor rating on your UI and it says "reduces damage by X%".

30 flat armor pen against a target with 30 armor is, I think, a 43% damage boost. A 43% damage boost is rather significant.
Touche on armor pen, I probably don't understand how it works but it's still situational. I'll research it if I have time tonight.

To the other calculations:

I'll say it again, it's not a pure DPS calculation, it's a value calculation. Meaning, did I get the most for my money? The most damage, crit, whatever. Did you get the most? In this case, you're comparing purchasing raw AD or manufacturing your own AD through CS. It's like a make/buy decision in the software development world.

scenario:
130 AD, 1 AS, 10% CS = 130*1+((10/100)*130)*1 = 143.
135 AD, 1 AS, 10% CS = 148.5
130 AD, 1 AS, 17% CS = 152.1

At this point, the cost difference between the two is 5 AD at a rate of 37 gold per point and 7 CS at 50 gold per point (so they're both about the same expenditure, a little less for the CS).

But there's a clear value difference. You spent the same money and got more return on investment from CS over AD.

When the value is higher, you buy it. Just like stocks. Until you can't buy anymore.


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EasymodeX

Senior Member

03-04-2010

Quote:
scenario:
130 AD, 1 AS, 10% CS = 130*1+((10/100)*130)*1 = 143.
135 AD, 1 AS, 10% CS = 148.5
130 AD, 1 AS, 17% CS = 152.1
5 AD is 175 gold. 7% CS is 350 gold. I suggest you revise your analysis here with the more relevant:
"130 AD, 1 AS, 13.5% CS = 147.55"

In case this isn't clear enough, you are comparing one unit of investment into AD, and DOUBLE the investment into crit%. Certainly, if you spend twice as much $$$ into crit, you will gain more DPS than half the $ into AD. Le shocke. Zen fire ze missiles~


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