Looking to do some major upgrades

[TrevorDTate]

I was thinking about finally getting a GTX Titan. I was wondering if this build, would everything work perfectly fine with all things considered.
i5 4690k
GTX Titan Z
8GB RAM
Asus Z-97A Mobo
H105 Cooler
Would I need a better processor, or will this one work just fine? Also, what kind of power supply would I need for this computer? One that will leave me room to overclock my processor or processor upgrade. Or is it bad to have a larger power supply than needed?

Thanks for the help in advance!!!

 

[timeconsumer]

Why the need for a Titan Z? Are you gaming in 4k? If so, you'd probably be better served with SLI 980 Tis.

 

[TrevorDTate]

Why the need for a Titan Z? Are you gaming in 4k? If so, you'd probably be better served with SLI 980 Tis.

I never considered sli... You think that would be better?

 

[timeconsumer]

The Titan Z is two Titan Blacks on a single card. The Titan Black has since been supplanted by the Titan X. A GTX 980 performs within 4% of a Titan X in most games at 4k: https://www.techpowerup.com/reviews/NVIDIA/GeForce_GTX_980_Ti/1.html
So it would be the clear winner if you are looking to do 4k gaming.

 

[Zerk2012]

The GTX Titan is not really a good buy for the price.
If your not gaming in 4K then a single GTX 980ti is more card than most people need if you are gaming in 4K then a pair in SLI would be your best option.
Your processor is just fine I would overclock it a bit to the 4.4 area and be set on that end.
If your using a single 1080p monitor with a 60 refresh rate a GTX 980 will whack about everything, for a 1440p monitor a GTX 980ti will whack about everything.
Single GTX 980ti http://pcpartpicker.com/part/evga-power-supply-220g20650y1
Single 980ti with plenty of head room for overclocking. http://pcpartpicker.com/part/evga-power-supply-220g20750xr
SLI 980ti's with plenty of head room for overclocking. http://pcpartpicker.com/part/evga-power-supply-120g21000xr