the Digital Audio comes in both single and dual CPU configs, they mainly can be spotted from their CPU speed, 466mhz, 533mhz, 667mhz, 733mhz CPU's some of them had dual CPU configs running the same speed as the single counterparts.
really the MDD and mini only benefitted from having a 33mhz faster system bus and having DDR ram. in reality the DDR didn't help things at all speed wise, it was more of a marketing gimmick then anything else. cause for one a 167mhz system bus will hardly reach half of the available bandwidth DDR has. also there is some cards not compatible with the MDD (mainly video cards).
the mini is stuck with a Radeon 9200 (32mb or 64mb vram) which kills its small performance gain it had with the slightly faster system bus and DDR. but the QS 2002 model and up G4's can use HDD's larger then 128gb in size. the mini and MDD had bluetooth capabilities, which can be added to any Mac with USB ports.
really the MDD and mini only benefitted from having a 33mhz faster system bus and having DDR ram. in reality the DDR didn't help things at all speed wise, it was more of a marketing gimmick then anything else. cause for one a 167mhz system bus will hardly reach half of the available bandwidth DDR has. also there is some cards not compatible with the MDD (mainly video cards).
the mini is stuck with a Radeon 9200 (32mb or 64mb vram) which kills its small performance gain it had with the slightly faster system bus and DDR. but the QS 2002 model and up G4's can use HDD's larger then 128gb in size. the mini and MDD had bluetooth capabilities, which can be added to any Mac with USB ports.