CPU or SLI GTX 970

[trailmix93]

I am looking to upgrade my Rig and I am torn between upgrading my CPU to an i7 4790k or to buy another GTX 970 to SLI. My main focuses are streaming regularly and playing some high demand titles, I am wondering what will benefit the overall quality of my stream between these two options.

My current specs are -

GPU - Gigabyte GeForce GTX 970 Overclocked GDDR5

CPU - i5-4690K Devil's Canyon Quad-Core 3.5 GHz

RAM - G.SKILL Ripjaws X Series 16GB (2 x 8GB) DDR3

SSD/HDD - SAMSUNG 850 EVO 2.5" 250GB SATA III - WD Blue 1TB Desktop Hard Disk Drive

PSU - EVGA 120-G1-0650-XR 80 PLUS GOLD 650 W Fully Modular NVIDIA SLI Ready

 

[crisan_tiberiu]

or sell your 970 and get a 980Ti

 

[Gingerbread]

Cpu is a waste, yours is perfect already. Either sell the 970 and ger 980ti or even better, wait some months for the next generation gpus

 

[Juvion]

I don't really see the need of upgrading that rig..
If you absolutely want to , you can sell your 970 and buy a 980ti as the others have already said. But SLI isn't really worth it and your CPU is fine imo.