One leak suggests that Nvidia’s upcoming RTX 5090 for mobile could support as much as 24GB of video memory, which would be a significant chunk of VRAM compared with its predecessor. The RTX 4090 for laptops has 16GB of VRAM.

GPUs for laptops in parallel with its desktop family, promising a substantial lift in performance while preserving efficiency. Blackwell on mobile extends to the RTX 5090 laptop, featuring a massive 24GB VRAM,

The jump to faster GDDR7 memory along will be an upgrade, but NVIDIA's next flagship mobile GPU may go as high as 24GB in total VRAM capacity.

There's a strong possibility that denser GDDR7 modules may be in limited supply, something that's expected to improve as the technology matures. At GTC 2024, Samsung and SK Hynix announced that the initial wave of GDDR7 memory will center around 16Gb capacities with plans to introduce 24Gb variants later on.