Smallest Computer Capable of Running HQP Embedded?

[lotusaurus]

I bought a used HP EliteDesk with an i7-9700T CPU:

 

 

I think this is the (out-of-stock) model at Newegg (although I have 16GB RAM).

 

I can run HQP Desktop under Win10 with output set to SDM, Adaptive output rate grey, poly-sinc-short-mp, ASDM7EC and Bit rate 48k x256. I don't know about convolution. The only time I've had dropouts is when Windows is doing some updating nonsense; CPU utilisation is around 60%. I assume it would be no higher under HQPE.

 

Output is to RPi4 running RoPieee as NAA.