Cerny cited a concept he called "time-to-triangle," which he described as the time required to code graphical systems at a level the hardware's capable of, essentially analogous to how long it takes to create the base for games that match the hardware's graphical power. According to Cerny, the PS1's time-to-triangle was one to two months, while the powerful but more complicated PS2 had a time-to-triangle of three to six months. The PS3's time-to-triangle went up to six months to a year as a result of the complex Cell processor, well documented as turning third-party developers away from prioritizing the system.
In contrast, Cerny said the PS4's time-to-triangle is just one to two months, the same amount of time as the original PlayStation's.