The memory bus width of the GPU GB20X will be at the level of the GPU AD10X, but this does not mean that the memory subsystem will not be improved
Insider kopite7kimi reported that the new generation Nvidia video cards (GeForce RTX 50) will not differ much from the current ones in terms of memory bus width.
«And although I still have fantasies about 512 bits, the GB20x memory interface configuration is not much different from the AD10x& raquo;, — wrote an insider on Twitter.
This means that the GeForce RTX 5090 on the GB202 GPU will not receive a 512-bit memory bus — will be 384 bits. GeForce RTX 580 on GB203 will have a 256-bit bus, while the base models of the line will have a 128-bit bus.
But this does not mean that the memory subsystem will not be upgraded. According to preliminary data, the place of GDDR6/GDDR6X chips will be taken by new GDDR7 chips with a capacity of 3 GB each; Micron will launch their production in 2025.
Insider kopite7kimi was the first to accurately describe the parameters of GeForce RTX 30 cards, and he also described RTX 40 cards more than once. Overall, it is one of the most reliable sources in this segment.