Xcode 6 - universal image support

Question

I am wondering which image sizes are needed with new XCode 6 and iPhone 6 and iPhone 6 plus support.

So if I am now having a fullwidth image, which is

640 x 80 pixel

for an iphone 4s/5 series. So with "@2x". For iPhone 6 plus I need the "@3x" as well. So that would be

1242 x 80 pixel

?

Update:

My goal is it to have a fullwidth image which looks good on every iphone or ipad (Size class any any).

Answer 1

Assuming that your 640 x 80 image is @2x, the @3x image size would be 960 x 120 (960 = 640 / 2 * 3)