Every system provides it owns benefits and disadvantages, and although the more complicated systems are generally excellent they have an attached price that far exceeds the easier systems.
The downside to the system is it is very complicated and very expensive, and typically only used for racing/track applications because of its high speed cornering potential.
Torque Vectoring Differential 940x310The yellow arrow highlights the torque transfer occuring through the corner, generated by the artifical resistance becoming exerted by the TVD externally wheel. This allows for greater acceleration out from the corner as the car’s turning abilitty is certainly increased.
A Torque Vectoring Differential is with the capacity of coupling China channelling 100% of the obtainable torque through a single wheel when needed in the most extreme of circumstances.
With the TVD exerting more resistance onto the outside wheels clutch, it tricks the system into diverting more torque through it – increasing the total amount power that can be applied and reducing the understeer skilled under acceleration out of a corner.
By continuing to use this resistance through the part, as the vehicle passes the apex and starts to accelerate out it will continue to override a standard multiway-LSD – which would again interpret the quicker moving outside wheel as slipping 
and divert torque during acceleration to the within wheel, which it perceives as having more grasp.
However, instead of releasing the resistance on both wheels a TVD proceeds to activate the clutch on the outside wheel only – increasing the resistance skilled simply by that wheel and making the machine channel more torque through it. This imbalance of capacity to the outside encourages the automobile to turn into the part sharper and reducing understeer.