Where, in an application or appeal relating to a specific piece of property the purposes of this chapter would be advanced by a deviation from the zoning requirements and the benefits of the deviation would substantially outweigh any detriment, grant a variance to allow departure from such zoning requirements; provided, however, that no variance from those departures enumerated in § 215-90D hereinbelow [(N.J.S.A. 40:55D-70(d)] shall be granted under this section, and provided, further, that the proposed development does not require approval by the Planning Board of a subdivision, site plan or conditional use in conjunction with which the Planning Board has power to review a request for a variance pursuant to § 215-93A(7) [N.J.S.A.40:55D-60(a)].