NVIDIA GeForce RTX 4090 GPU & Samsung Odyssey Neo G9 Monitor Not A Perfect Match, 8K 240Hz Mode Reportedly Doesn’t Work

wccftech.com:

Samsung's Odyssey Neo G9 is categorized as a "benchmark" for the industry, with its "out of the world" specifications however, it is now reported that you can't run the monitor at its complete potential with any of NVIDIA's existing GPUs, even the flagship GeForce RTX 4090.

Before diving into the crux, let's give an overview of the Samsung Odyssey Neo G9. The gaming monitor boasts a 57-inch screen with "quantum mini LED technology" & a Dual QHD resolution reaching 7,680×2,160. The Odyssey Neo G9 features Vesa DisplayHDR 1000 certification and a 1000R curvature rate on a 32:9 panel to deliver the best ultrawide gaming experience. There are several other mentionable features, but our focus will now be on the actual display and more importantly, its refresh modes which include up to 8K 240Hz.

Samsung Odyssey Neo G9 can be said a product that is way ahead of its actual time, which is why even NVIDIA's flagship Ada GPU is no match for it. However, AMD's Radeon RX 7000 GPUs are now fully capable of supporting the 8K 240Hz mode, not only over DP 2.1 but also through HDMI 2.1.

The Samsung Odyssey Neo G9 is still in pre-order; however, numerous Korean users and reviewers have managed to obtain a unit, claiming that the NVIDIA GeForce RTX 4090 can only output an 8K display at 120Hz.

The factor that makes it sort of a "controversial" statement is that NVIDIA's GeForce RTX 4090 comes with an HDMI 2.1 port that, on paper, should output the desired display since it offers the same 48 Gbps bandwidth that allows AMD's Radeon RX 7000 GPUs to run it over HDMI 2.1, but that isn't the case here. It would be technically impossible to run the said mode over the DP 1.4 output since it lacks the required signal bandwidth but AMD also has an edge