i7 bundle or i5 bundle ?

[Smooth262]

Hey guys, im looking to replace my really old "AMD Phenom x4 955 BE" and motherboard.

I've got my eye on one of the discounted bundles on overclockers.co.uk. I am unsure if i should go for the:

Gigabyte Z97X-Gaming 7 - Devils Canyon Core i7 4790K CPU & Motherboard Bundle **£43 Saving**

or the

Asus Z97-K - Devils Canyon Core i5 4690K Bundle **£14 Saving**

It will be used to play world of warcraft:warlords of dreanor most of the time.
I want to be able to play at ultra settings on a 1080p monitor.
my graphics card is ASUS GTX 670 DirectCU II 2gb

Will the i5 bundle have any problems playing at ultra settings with a constant high fps? or is it best to spend the extra on the i7 bundle.

all answers and guidance is appreciated

thanks.

 

[Smooth262]

thanks for the reply. i think i will most likely go for the i5 then. is there any motherboards out there that anyone would suggest for the proccesor?. im looking to spend around £250-£260 including the cpu. or should i just go with one of the i5 bundles.