Question Which CPU to pair with a GTX 750 ?

[siddheshk599]

Hi, I'm looking to upgrade my old desktop PC for 720p basic to moderate gaming.

My current PC config is:

• CPU: Intel Core 2 Quad Q6600 @ 2.4 GHz
• GPU: Asus GTX 750 2 GB GDDR5
• RAM: 8 GB DDR3 RAM @ 1333 MHz
• PSU: Antec 450W PSU
• HDD: 500 GB

From online research, I found the GTX 750 builds with these CPUs:

• i5-2400
• i5-3470
• i7-6700
• i3-7100

I'll also be upgrading my RAM to 16GB DDR3 / DDR4 depending on the motherboard.

Please suggest which CPU I should use for better 720p gaming performance and minimum bottleneck
with a GTX 750.