It's a much more powerful vehicle.

The turboprop-powered Predator B, designated MQ-9B by the US Air Force and referred to as the Hunter-Killer, flies faster, higher and carries more weapons than the Predator. The Honeywell TP331-10 engine, producing 950 shp, provides a maximum airspeed of 260 kts and a cruise speed for maximum endurance of 150-170 kts. The MQ-9B can carry a payload mix of 1,500 lb. on each of its two inboard weapons stations, 500-600 lb. on the two middle stations and 150-200 lb. on the outboard stations.

The first production MQ-9B had been built by late 2002, at which time three more were under construction, with 3-4 to follow in 2003 and full production of 9-15/year to be reached in 2004.

Another version of the Predator B, with a 20-ft. wing extension, started flying in late 2002. The standard MQ-9, at a takeoff weight of 10,000 lb., can carry 3,000 lb. of payload and 3,000 lb. of fuel. With no exterior stores, it could stay aloft for 32 hr. at an altitude of more than 50,000 ft. The version with the wingspan extended to 86 ft., about the same as a 737 airliner, can carry 34 hr. of internal fuel. With two 1,000-lb. drop tanks and 1,000 lb. of weapons it can fly a 42-hr. mission. Payloads can vary, but a favorite is the steadily upgrading Lynx synthetic aperture radar with a range of about 15 mi. even through clouds and rain.

Weapons planned the MQ-9A Predator B include the AGM-114 Hellfire II laser-guided air-to-surface missile to attack stationary ground targets. By the end of 2003 the Air Force intends to evaluate Raytheon's FIM-92 Stinger missile in the air-to-air role. By 2005 the Air Force plans to add the GBU-38 500 lb Joint Direct Attack Munition (JDAM). The service then intends to integrate the 500 lb GBU-12 laser-guided bomb with the air vehicle. Other direct-attack weapons such as Raytheon's AGM-65 Maverick air-to-surface missile remain options, while air-to-air weapons like Raytheon's AIM-9 Sidewinder and AIM-120 Advanced Medium-Range Air-to-Air Missile may also be evaluated at some point.

Let's see:
10 underwing hardpoints for carrying a mixture of ordance and fuel tanks. The actual mix depends on the mission.

Air-to-ground Hellfire missiles. Check.
Air-to-ground Maverick missiles. Check.
Air-to-air Stinger, Sidewinder, and AMRAAM(!!!) missiles. Under evaluation.
500 pound JDAMS and laser guided bombs. Under development.

This isn't you're wimpy little UAV any more. This is a serious UCAV!