It packs the ability to program in BASIC on it, making it a pretty damn awesome piece of hardware. You could program a lot onto the 120x64 pixel display. Apparently it was too fucking expensive for anyone but the richest czar to own, costing the equivalent of $22,000 in 2013 money, adjusted for inflation and adjusted for an American wage. Your calculator would be worth more than your education.
I guess it was ahead of its time.
You can watch a video of some of the games. There is a pretty good Pac-Man clone on it, and, of course, TETRIS.
Read all the technical specs on the Museum of Soviet Calculators on the Web.