| Trumpstyle said: "Moving to a different CPU - even if it's possible to avoid impact to console cost and form factor - runs the very high risk of many existing titles not working properly," Cerny explains. "The origin of these problems is that code running on the new CPU runs code at very different timing from the old one, and that can expose bugs in the game that were never encountered before." |
Cerny is right on the money there. Game engines on consoles sometimes have a "tick rate" that is tied to the clock rate/performance of the CPU.
It's an extremely rare occurrence... And I would be surprised if any modern game/game engine even takes that approach in the modern era anymore... Besides, such issues would have become apparent on these mid-generation consoles refreshes anyway.
| Trumpstyle said: To me this is clear. Using ryzen cpu will break backwards compatibility. That's why I'm guessing ps5 will have 4 ryzen cpu cores + 8 jaguar cores if they go for BC. |
And... Disagree with you here.
From a hardware feature set point of view, Ryzen should be fully backwards compatible with Jaguar from an ISA standpoint, so the real caveat is entirely performance based.
CPU's these days have a varying degrees of clock-rates that they can operate at to meet various performance/power targets.
There are dozens of ways you can influence that to meet backwards compatibility goals, possibly even use the power of abstraction.
Next-Gen is highly unlikely to use Ryzen CPU cores, well... Not the Ryzen we have today anyway.
--::{PC Gaming Master Race}::--
