@nightcrawler,

As I side note, I think the source article is one of the worst ever! Each weapon has its pros and cons. For example, the author stresses the point that the smaller size and weight do not matter if the high-precision weapons is used. However, one of the major points of making the tanks smaller is their easier transportation via the railroads. Besides, the pure tanks vs. tanks battles are something of the past. E.g. the tank groups are thought to assault their targets in conjunction with the support helicopters. That, in its turn would be very difficult unless the (at least local) superiority in the air is achieved. And so on and so forth. To make the long story short, the comparison of the kind that the source article provides seems very unprofessional.

Here's a classic article with a much more comprehensive analysis: Т-90 П

Happy translating!