The difference is in performance and power requirements. GTX750ti is < GTX750tiSC . 300w is sufficient.
GTX750FTW is higher overclocked and needs a 6 pin aux power connector; more like 400w.
The difference is in performance and power requirements. GTX750ti is < GTX750tiSC . 300w is sufficient.
GTX750FTW is higher overclocked and needs a 6 pin aux power connector; more like 400w.