Comparing: SU-122-44 vs. T25/2

Development was started in June 1944 by the Uralmash Design Bureau. The vehicle was based on the T-44 chassis and had a conventional configuration, with the front placement of the fighting compartment. In October, People's Commissariat of the Tank Industry considered the SU-122-44 project. In December the design project was ready. However, the SU-100M-2 with the rear placement of the fighting compartment was preferred.

Tank destroyer based on the T23. Development started in 1943. Since the T23 was not adopted for service, work on the tank destroyer was discontinued. Existed only in blueprints.