The first difference is speed the Tu-22M can reach speeds close to Mach 2, the B-52’s top speed is about 650 mph, 1,047 km/h
Next payload the B-52 can carry up to 70,000 lb (31,500 kg) of bombs or missiles. It can carry 51 mk82 bombs while the Tu-22M can carry up to 24,000 kg (53,000 lb) of bombs or missiles. The B-52 can carry a wider variety of weapons than the Tu-22m
Now range a Tu-22M has a combat radius of 2,410 km (1,500 mi; 1,300 nmi) and currently lacks an in-flight refueling probe though one could be reinstalled.
A B-52’s combat radius is 4,480 mi (3,890 nmi, 7,210 km) and they can be refueled in flight.
The first difference is speed the Tu-22M can reach speeds close to Mach 2, the B-52’s top speed is about 650 mph, 1,047 km/h
Next payload the B-52 can carry up to 70,000 lb (31,500 kg) of bombs or missiles. It can carry 51 mk82 bombs while the Tu-22M can carry up to 24,000 kg (53,000 lb) of bombs or missiles. The B-52 can carry a wider variety of weapons than the Tu-22m
Now range a Tu-22M has a combat radius of 2,410 km (1,500 mi; 1,300 nmi) and currently lacks an in-flight refueling probe though one could be reinstalled.
A B-52’s combat radius is 4,480 mi (3,890 nmi, 7,210 km) and they can be refueled in flight.
much more comparison info at link
https://www.quora.com/What-are-the-major-differences-between-a-B-52-bomber-aircraft-and-a-Tu-22M3M-aircraft
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