Yep, the Toshiba probably has better hardware in it for the upconversion. From a quick look at the 3806 product info, I don't think it has the same hardware as the 3808.

Even the 3808 is a little dated as far as upconversion hardware (Faroudja chip versus Reon, the latter is supposedly the best now). Judging by the similarity in output, the PS3 and 3808 might be using similar hardware for the processing.

Epic 80-800: HG Cherry