Not really. The BIOS setting allows you to stablize the AGP voltage. For example, if your 1.5V AGP card is running at 1.43V for some reason, bumping up the AGP voltage a tap can ensure your card running with 1.5V. But your voltage regulator on the videocard still control how much voltage will be running through your videocard. Thats where a Vmodd is needed, it "fool" the regulator to allow more voltage feeding to your card.