is the GTX 750ti is the current best performance over power without needing PSU power?

is Leadtek the model selling here a good by? at RM519?

or get the MSI as slightly more expensive at RM549?

or get the Gigabyte at RM559.

I am not sure the model they are selling here, I just refers to compu-zone.com and viewnet online pricelist, thanks

Thanks again