Would I get better performance in gaming to get these two GPUs?
GFX - $400 - MSI Gaming N770 TF 2GD5/OC GeForce GTX 770 http://www.newegg.com/Product/Product.aspx?Item=N82E168...
GFX $400 MSI Gaming N770 TF 2GD5/OC GeForce GTX 770 http://www.newegg.com/Product/Product.aspx?Item=N82E168...
or...
Only this one.
NVIDIA GeForce GTX 780 http://www.amazon.com/exec/obidos/ASIN/B00CW7VZNK/ref=nosim/7240466-rg2304-00-20?s=merchant&m=ATVPDKIKX0DER
GFX - $400 - MSI Gaming N770 TF 2GD5/OC GeForce GTX 770 http://www.newegg.com/Product/Product.aspx?Item=N82E168...
GFX $400 MSI Gaming N770 TF 2GD5/OC GeForce GTX 770 http://www.newegg.com/Product/Product.aspx?Item=N82E168...
or...
Only this one.
NVIDIA GeForce GTX 780 http://www.amazon.com/exec/obidos/ASIN/B00CW7VZNK/ref=nosim/7240466-rg2304-00-20?s=merchant&m=ATVPDKIKX0DER