T-80 (1976)
Initial model, with a 1,000-hp gas turbine engine, coincidence rangefinder, and no missile capability. This model does not have fittings for explosive reactive armor. The turret is from the T-64A, and thus retains the use of the old coincidence rangefinder. Characteristics of this type are the V-shaped water deflector on the front glacis, coincidence rangefinder in front of the commander's cupola, and Luna searchlight mounted in the same position as a T-64. Around 250 were produced, as the tank's armor was essentially obsolete when introduced. Turret vs APFSDS – 380 mm, hull vs APFSDS – 500 mm (without reactive armor). This was, in effect, a pre-production model. It reportedly was fitted with an early version of the Shtora APS.
T-80BV (1985)
T-80B with explosive reactive armor Kontakt-1.
T-80UM:
Russian version, with new Buran thermal imaging sight in place of the Luna IR.
Object 219A: Early T-80U (Object 219AS) variant
It has the T-80U's turret, but not the Kontakt-5 ERA. Instead, it uses the old Kontakt-1/3 system; some 219As did not have ERA at all. Often misnamed T-80A. T-80U (1985): Further development with a better turret, Kontakt-5 explosive reactive armor, improved gunsight, and 9M119 Svir missile system. In 1990 a new, 1,250-hp, engine was installed. Overall protection with Kontakt-5 against APFSDS/HEAT is 780/1,320 mm RHAe.9K119M with antitank guided missile 9M119M installed since 1990. Some of the tanks in the commander version (T-80UK) are equipped with Shtora-1 APS, and thermal imaging night sight TO1-PO2T (detection range/target classification range = 6,400/4,600 meters at night). The basic thermal night sight of the T-80U is within the limits of 1,750/1,500 meters.
T-80UD Bereza (1987)
Ukrainian diesel version with 1,000-hp 6TD engine and remote-controlled antiaircraft machine gun.
T-84 (1999)
Further Ukrainian development of T-80UD with 1,200-hp diesel and new welded turret.
T-80BVD (2002):
KMDB's upgrade standard for Ukrainian T-80BVs. Changes include the 6TD diesel engine, remote-controlled commander's machine gun, and better optics. None were produced.
T-80UM2/Black Eagle (prototype: cancelled):
Several Russian prototypes were shown at trade shows, with a longer chassis and extra pair of road wheels, and very a large turret with a separate ammunition compartment.
T-80BVM (2017)
Up to 3,000 units, installed "Relikt" ERA, PNM Sosna-U gunner sight (as in the T-90, T-72B3), the improved 125mm gun 2A46M-4, the upgraded gas turbine engine and the upgrades of various other systems. More than 120 already in the service.