RTX 4090 D with 48GB VRAM Spotted in China, Built for AI

Modified Nvidia RTX 4090 and 4080 GPUs with Double VRAM Appear in China A GeForce RTX 4090 D with 48 GB and an RTX 4080 Super with 32 GB of VRAM have surfaced on the Chinese market, likely modified for AI training. Rumors are swirling in the tech world as a user discovered modified Nvidia GeForce RTX 40 series GPUs with double the standard VRAM on a Chinese cloud computing platform. The user, "bdsqlsz," shared their findings on X (formerly Twitter) after renting computing power from AutoDL, a Chinese provider specializing in AI tasks. While no performance data or images of the cards were shared, screenshots of log files reveal the existence of a GeForce RTX 4090 D with 48 GB of VRAM and a GeForce RTX 4080 Super with 32 GB. These figures represent a doubling of the typical memory capacity for these models. It's believed that the modifications involve a custom PCB design allowing for twice the number of memory chips, as simply installing larger modules is not feasible with th…