Nice be the lucky one getting new cards. Return to sender then you need to "return back to the the queue" and hope you get new card within next 16 weeks. Maybe you get lucky a second time? What next?
NVIDIA GeForce RTX 5090 Spotted with Missing ROPs, Performance Loss Confirmed
Exclusive Updated
Today, 11:42 Updated: Today
TechPowerUp has discovered that there are NVIDIA GeForce RTX 5090 graphics cards in retail circulation that come with too few render units, which lowers performance. Zotac's GeForce RTX 5090 Solid comes with fewer ROPs than it should—168 are enabled, instead of the 176 that are part of the RTX 5090 specifications. This loss of 8 ROPs has a small, but noticeable impact on performance. During recent testing, we noticed our Zotac RTX 5090 Solid sample underperformed slightly, falling behind even the NVIDIA RTX 5090 Founders Edition card. At the time we didn't pay attention to the ROP count that TechPowerUp GPU-Z was reporting, and instead spent time looking for other reasons, like clocks, power, cooling, etc.
https://www.tomshardware.com/pc-components/gpus/some-rtx-5090s-are-shipping-with-missing-rop-units-leading-to-less-gaming-performance-report
Nvidia have a lot work foreards with their brand new tech.... And it seems worse than ever. Shortage is only a small part of this awful release.