Both Russia and Ukraine have used some very old tanks, most notable of which are probably the T-62 for the Russians and Leopard 1 for Ukraine. More specifically, T-62M and Leopard 1A5, both being modernizations from the 1980s. Both tanks are generally now considered obsolete, but you might be surprised to find out that some of their features are actually still pretty relevant and that they are actually, all things considered, still capable tanks, especially for the current conflict. So what a better way to look at their capabilities than to compare the two.