It had an advanced capability - based object - oriented architecture .
Poor performance compared to contemporary architectures such as Intel 's own 80286 ( introduced 1982 ) , which was almost four times as fast on typical benchmark tests .
It had an advanced capability - based object - oriented architecture , but poor performance compared to contemporary architectures such as Intel 's own 80286 ( introduced 1982 ) , which was almost four times as fast on typical benchmark tests .