Comparing: Tiger II vs. KV-5

The most heavily armored tank carrying the most powerful anti-tank gun. The vehicle's drawbacks included an overloaded suspension and engine-transmission group, as well as excessive general mass. When engaging enemy vehicles at long range, the Tiger II had an upper hand over any other vehicle in terms of the gun and armor protection. However, due to the excessive mass of the vehicle, relatively low durability of the engine and transmission, and small total number of vehicles built, the Tiger II did not have any significant impact on the course of war.

Development was started in June 1941 at the Leningrad Kirov Plant and completed by August, but the German invasion prevented development from progressing to the prototype stage. The KV-5 was expected to share some components with the KV-1. A new turret was designed, incorporating the 107-mm ZIS-6 gun. Early plans called for a new 1,200 hp diesel engine, but later adjustments, recognizing wartime disruptions, replaced this with two V-2K engines.