48 GB VRAM are possible using 3 GB GDDR7 memory chips, instead of the current 2 GB ones, but a consumer priced 48 GB VRAM version would compete with the much more profitable RTX PRO 5000. I don't see it happening yet ["late 2026"]. But NVIDIA also released a 96 GB VRAM RTX PRO 6000, which was unexpected. Still, not sure I'd be interested in a 48 GB VRAM GPU, when the power consumption is 575W+. I know one probably could reduce the TDP by -30% to -50%, but ideally I'd like to see a MaxQ version (tho this would be unusual for a consumer GPU?) or the same chip using the next TSMC node shrink / N3P (the same arch on a full node shrink is a rare occurrence tho). But 48 GB VRAM per GPU is where it starts to get interesting for LLM self-hosting.