Comparing: SU-152 vs. SU-100 vs. IS

Development of a tank destroyer on the basis of the KV-1S heavy tank began on January 4, 1943. The vehicle received the designation KV-14 (Object 236). A prototype underwent field trials at the beginning of February 1943 and entered service on February 14, 1943. In April, the KV-14 was renamed SU-152. By December 1943, 670 vehicles were manufactured. Thanks to its ability to successfully combat german Tiger I and Panther tanks, the SU-152 was dubbed "Hunter" by the troops.

Tank destroyer on the basis of the T-34-85 and SU-85 with a total of 2,495 vehicles produced from September 1944 through June 1945. After the vehicle saw service, the Red Army praised it as a very effective tank destroyer with strong firepower, which could stand against any mass-produced German armored vehicle.

The IS-1 (IS-85) heavy tank was a thorough modernization of the KV-1. The tank featured the 85-mm D-5T gun. The IS-1 entered mass production in October 1943, but work was discontinued at the beginning of 1944, as the IS-2 (IS-122) tank entered mass production in December 1943. A total of 107 vehicles were manufactured.