Visitors to Shenzhen's Huaqiangbei electronics market have encountered reports and potential offers for modified Nvidia RTX 5090 graphics cards equipped with 96 gigabytes of video RAM. One seller indicated that such a hacked-up Blackwell RTX 6000 would cost approximately $8,200, comprising 36,000 yuan for the base card and an additional 20,000 yuan for the memory upgrade.
- The total estimated cost is about $8,200, which is lower than the $11,000 price of a genuine RTX 5090 with a warranty.
- Sellers reportedly require a one-week lead time to complete the modifications.
- An update suggests that modifying the VBIOS may be a critical obstacle, potentially preventing the card from recognizing the additional memory even if physically installed.
The feasibility of these modified cards remains uncertain due to potential firmware restrictions, leaving the practical viability of this modification unconfirmed.