The PT8211 seems to have some advantage of the 4x oversampling, but it's minor.
Just looking back over this thread and had a quick look at the PT8211 ds - no oversampling at all, its a
straight DAC. The datasheet says you can do 8x over-sampling, which simply means its rated for upto
384kSPS which is 44k x 8.
Drive it at 44kSPS like with the Audio library out the box and there's no oversampling - should be very
obvious if you stick a 'scope on its output and drive it with 10kHz sine wave!
This should also mean it has much less delay than the other DACs mentioned, so its a great choice for
a control loop output.