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Nvidia Blackwell GB202 GPU Rumored to Feature 384-bit GDDR7 (www.tomshardware.com)

submitted 10 months ago by [email protected] to c/[email protected]

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[–] [email protected] 1 points 10 months ago (14 children)

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.

[–] [email protected] 1 points 10 months ago (5 children)

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.

[–] [email protected] 1 points 10 months ago (2 children)

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.

[–] [email protected] 1 points 10 months ago

The bus width needed to be what it needed to be. That left 2 possibilities - 12 GB and 24 GB. The former was way low for 4090 to work in its target applications. 24 it became.