bitbydeath
Gold Member
Below is one example where custom hardware was used to resolve a bottleneck and in the process save one whole CPU core. (Meaning it could be used elsewhere) When Mark is quoted as addressing all bottlenecks then that would be where the excitement from devs is coming from.
IF similar bottlenecks are resolved on the GPU side then that means you won't need as many teraflops to perform the exact same operations as XSX.
I'm not saying PS5 is more powerful than XSX because of these changers but it obviously at the very least brings the two much closer together performance wise since PS5 is using (as per Mark Cerny) 'a lot of custom hardware'.
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IF similar bottlenecks are resolved on the GPU side then that means you won't need as many teraflops to perform the exact same operations as XSX.
For PlayStation 5 our goal was not just that the SSD itself be a hundred times faster. It was that game loads and streaming would be a hundred times faster so every single potential bottleneck needed to be addressed and there are a lot of them.
Let's look at check-in and what happens when its overhead gets a hundred times larger conceptually. Check-in is a pretty simple process, data is loaded into system memory from the hard drive or SSD it's examined a few values are tweaked to check it in and then it's moved to its final location at the SSD speeds.
We're talking about that last part moving the data meaning copying it from one location to another takes roughly an entire next-gen CPU core and that's just the tip of the iceberg, if all the overheads get a hundred times larger that will cripple the framerate as soon as the player moves and that massive stream of data starts coming off the SSD so to solve all of that we built a lot of custom hardware namely a custom flash controller and a number of custom units in our main chip the flash controller in the SSD was designed for smooth and bottleneck free operation.
I'm not saying PS5 is more powerful than XSX because of these changers but it obviously at the very least brings the two much closer together performance wise since PS5 is using (as per Mark Cerny) 'a lot of custom hardware'.
Quote taken from -