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[Answered] Power or Precision?

power vs precision

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#1 Kabaksi


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Posted 11 November 2013 - 11:40 AM

READ: PLEASE, PLEASE DO NOT COMMENT THAT THE ONLY PREFIX IS SHOULD USE IS BERSERKER! I DO NOT WANT TO HEAR IT! It is not the answer I am looking for. Yes, I have the cookie-cutter zerker #yolo420swag warrior. I also run full zerker on a necro. I respect berserker, but it does not concern itself with this question.

Greetings, and salutations everybody. I am here to ask a simple question, which statistically does more damage? Power or Precision? Let us assume that the points are equivalent, and nothing is invested in the other, e.g. 1000 power and 0 precision vs 1000 precision and 0 power. Given that there is many, many variables, the question of where one attribute shines in a particular area over the other stands.

Thank you for your time.
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#2 happydale


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Posted 11 November 2013 - 11:58 AM

Here are two post that I think will answer your question. I found the first one really helpful.


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#3 Kabaksi


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Posted 11 November 2013 - 12:14 PM

Thank you very much. I got it.
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#4 NerfHerder


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Posted 11 November 2013 - 12:41 PM

The answer is Power.
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#5 gw2guruaccount


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Posted 11 November 2013 - 05:17 PM

Depends on what you're looking for.

If you want the highest burst damage the answer is Power.

If you want the highest DPS the answer is Precision.

Due to how Power works in this game ( and subsequently "attack" ) all a critical hit does is adjust the power ratio. This means in essence that any and all increases to damage output are also just augments of power which in turn means that there is actually no real "golden ratio" because of the math and realistic probability. The easiest example is that of the Flamethrower for the Engineer.

If you had a 40% real crit rate most analyses are going to assume that it hits 4 out of 10 times, no matter what, the problem with this is that real probability functions as ( 1 - C ) ^H where C is your critical chance and H is the number of hits. That means that as H increases the odds that you will achieve a critical hit increases. So for instance in the case of a Flamethrower with 40% it's after 4 hits (.6^4 or 12.96% ) that you will have an actual success rate of 88% about. This means that if you have an 88% chance of crit after about half of the attack you're not really scoring "4/10" in conventional encounters.

Yes you would get 4/10 over the course of maybe 10,000 hits but that's not useful to you when you're facing something that only takes a few hits at massive crits versus steady but far weaker damage. Realistically if you were take Precision then the easiest thing to do is mentally multiply your critical damage increases by your power and then calculate the odds of success. For instance if your critical rate is 70% with the flamethrower it is as follows throughout all the hits:

.7, .49, .34, .24, .16, ...

As you can see your odds of failure are ridiculously low. Within the first two blasts you have a 51% chance to hit critically.

Also what is failed to be expressed is that all damage is run by coefficient. The simple mathematics that were provided are grossly incorrect because of this. The flamethrower for instance has a coefficient of .15 so it doesn't take enough of your power for your actual power to matter more than your critical chance. Because this wasn't accounted for there's actually a cubic function that describes a "hump" if you will where it's better to take power over precision. Before a certain point the game doesn't take enough of your power for it to be valuable, for instance let's just say 20%, and after a certain point you do more damage via critical increases than you would with basic damage, let's just say 120% ( the coefficient for bombs ) now anything between those two points will do better with power than with precision because of just how the math runs itself.

So it's a very complex question actually. :P In essence for regular play it is almost always 80% better to have a higher critical hit ratio than to have a higher power ratio with the only times between with skills with just about to ratio coefficients or if you're aiming for the highest burst damage possible. Otherwise the DPS of continuous crits far outweighs the ratio of power in real gameplay. Because real life is a hell of a lot better than models that don't realistically work.
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