@BobbyBuckets, I'm guessing the Bestec was pulled from a pre-built HP an the Delta from a Gateway rig. Either has enough wattage for the 750 Ti, but may I ask you, what the store is pricing them at? Or do you already own them? I personally don't know which one is higher quality, therefore I'd probably just pick the higher wattage Delta. With that said, if you are in the market for a new power supply, then I recommend that you pick a better quality unit. Also, what is the price that you're planning on paying for the 750 Ti and what games do you plan on playing? If you had a better quality of power supply, I'd recommend at least a GTX 950 instead.