this post was submitted on 15 Nov 2023
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GDDR7 memory chips will be in production with either 2 or 3 GB sizes, which means 36GB of VRAM on 384-bit bus could be a possibility for next gen.
Why actually build the 36 GB one though? What gaming application will be able to take advantage of more than 24 for the lifetime of 5090? 5090 will be irrelevant by the time the next gen of consoles releases, and the current one has 16 GB for VRAM and system RAM combined. 24 is basically perfect for top end gaming card.
And 36 will be even more self-canibalizing for professional cards market.
So it's unnecessary, expensive, and canibalizing. Not happening.
Gaming applications didn't take advantage of the 24GB when it debuted on the 3090 and they still don't do for the 4090 now. That's not what drives these decisions.
Of course not, memory bandwidth matters much more. We always say this, and now people finally see proof with 4060ti