Maryland and Delaware are both members of the Drivers License Compact (DLC). This interstate agreement requires member states to report conviction of tickets received by a motorist back to the state where they received their driver's license.
A speeding ticket in Delaware a speeding ticket for 1 to 9 mph over the limit is 2 points, for 10 to 14 mph over is 4 points and for 15 to 19 and 20 or more is 5 points. If caught going 20 or more mph over the speed limit the DE Division of Motor Vehicles may also have additional actions, including suspension of driving privileges, for the motorist.
The Maryland driver's manual currently states that once the MVA receives ticket information from another state they treat it as if the violation occurred in state. If the MD MVA does treat the DE speeding ticket as an in state offense than it would go on your driving record and could be assigned points, but most likely from the Maryland points system instead of the Delaware points system.
In Maryland speeding violations are worth 2, 3 or 5 points depending upon the amount of miles per hour you were going over the speed limit and what the posted speed limit. To find out if points will be assessed for the out of state speeding ticket and if so how many, check with the Maryland Motor Vehicle Administration.