CDR vs Attack Speed

[thunda]

Which should be focused for any one type of skill? fast casting skills or slow casting skills. Obviously both are good to have.

[Peredur]

Most impactful is CDR on skills will long CD.

50% CDR on a 6 sec CD skill saves you 3 sec
50% CDR on a 0.3 sec CD skill saves you 0.15 sec
50% AS on a 0.5 sec cast skill saves you 0.25 sec
50% AS on a 0.1 sec cast skill saves you 0.05 sec

To be noted that CDR is capped at 75% and AS is capped at 90%.

[Torinux]

If you want insanity, cap Attack Speed (90%) and CDR (75%) build around any projectile skill specially. Easy game.

[thunda]

Originally posted by Peredur:

Most impactful is CDR on skills will long CD.

50% CDR on a 6 sec CD skill saves you 3 sec
50% CDR on a 0.3 sec CD skill saves you 0.15 sec
50% AS on a 0.5 sec cast skill saves you 0.25 sec
50% AS on a 0.1 sec cast skill saves you 0.05 sec

To be noted that CDR is capped at 75% and AS is capped at 90%.

Yeah but youre not noting the increased DPS. Its not how much time you save, but how much your DPS increases that actually matters. Saving 0.05 seconds from 0.10 seconds is not a lot of seconds, but its double the DPS.

Also your calculations are wrong anyway. +50% attack speed on a 0.5 sec cast skill doesnt mean 0.25 sec cast (that'd be +100% attack speed), its 0.333... seconds.

So I suppose which is better depends on whats capping your DPS, your cast speed or CD. Fast skills have fast animations, so you end up waiting for CD.

[MiniPrimarch]

Attack Speed only matters for Fast Skills, since it decreases the duration of the animation which is sub 0.3 seconds for most builds. CDR is a good stat for most builds.

I have a more detailed breakdown on the Slormancer discord:

https://discord.com/channels/531482023102251018/1359302446131839075

[Peredur]

Originally posted by thunda:

Yeah but youre not noting the increased DPS. Its not how much time you save, but how much your DPS increases that actually matters. Saving 0.05 seconds from 0.10 seconds is not a lot of seconds, but its double the DPS.

It doesn't.
Each skill has both a cast duration and a cooldown.
If it takes 0.10 sec to cast and have 1 sec of cooldown behind, you cast it once every 1.1 sec.
And reducing its cast time to 0.05 allows to cast it every 1.05 sec. So a bit less than 5% increase of dps in this case.
In the end, saving 0.1 from attack speed or from cdr as the same impact on dps (but saving on attack speed rather than cooldown allows you to start moving again faster). So the stat that saves you the more time is the more efficient for dps.

It's not exactly accurate as there is also a pre cast duration that is not affected by either.

BTW to be noted that channeled skills are not affected by attack speed.

Originally posted by thunda:

Also your calculations are wrong anyway. +50% attack speed on a 0.5 sec cast skill doesnt mean 0.25 sec cast (that'd be +100% attack speed), its 0.333... seconds.

AS works the same way as CDR: if you have 90% AS, the cast animation is reduced by 90%.
The naming can be misleading but it's easier to have similar stats work the same way.

[Versive]

Does Attack Speed affect Arcane Breach?

[Ellye]

Originally posted by Peredur:

If it takes 0.10 sec to cast and have 1 sec of cooldown behind, you cast it once every 1.1 sec.

Oh, so the cooldown only starts after the animation ends?

Edit: yeah, okay, a quick test confirmed that. Nice to know.