As reported by engadget,
The cards should benefit from Ampere architecture improvements like faster ray tracing, and might add Resizable Base Address Register tech that boosts communication between the CPU and GPU. Existing RTX 30 chips are technically capable, so it may be just a matter of enabling the feature through software.
NVIDIA might also introduce a non-Ti RTX 3060 for desktops at the virtual event.
There are still some unanswered questions that may have to wait until after the presentation. It’s not certain how well laptop RTX 30 graphics compare with their counterparts. Power consumption is also something of a mystery. RTX 30 boards consume a lot of power, and it’s not certain how NVIDIA will keep that consumption in check for portable machines.
— NVIDIA GeForce (@NVIDIAGeForce) January 9, 2021