| DonFerrari said: .. if the rumor of 9 vs 12 Tflops is true (40 vs 56 CUs) were true than the silicon budget of PS5 would have been used in other stuff instead of just giving away over 33% in power (if everything else in the consoles would give the same 9 vs 12 advantage to Series X). Because that devkit was just to0 big to have so much less power. |
The current rumours are I think 40cus at 2GHz vs 56cus at 1.8GHz, so looking at cus only, it would be a 25% difference (both are very optimistic clock rates imho).
Power comes at a price. Particularly at 7nm, every square mm adds $ to the chip cost. It's unikely that Sony uses other stuff, it's just that Sony uses a smaller chip overall to save significant costs. Rumours have the PS5 at around 310-320mm^2, while the XSX is at 360-380mm^2. That is a significantly higher cost (probably around $30 per chip) for the latter chip. If the performance difference stays within 20%, people will barely notice the difference. Both will be constraint to a certain extent by memory. 16GByte is the rumoured size for both, but if XSX uses, say, 24GBytes (the 384bit bus rumour), that would mean a significant difference in performance. 16GByte is the very bottom you can get away with for something that has to live in the 4k world for even just a few years.
