Review on 48Gbps Support Dynamic Compatible Nintendo by Paul Dobson

Short version: 4k 120Hz with HDR, ALLM and VRR work with my LG GX OLED and RTX 3090 Long version: This ultra-fast 8k HDMI cable is still excellent, by at least for my specific case. I don't have any sources to test eARC so I just need to be 100% on my gaming PC. I chose the model with a 50 foot cable. It is packaged in a roll (see images) with mesh around the connectors and a plastic cap to protect the connectors. The connectors are quite heavy and have a metal construction. You probably won't be looking at the ports, but they are fingerprint magnets. The cable itself unwinds easily from the reel. It's not rigid, but it's best not to bend these types of cables abruptly as doing so can cause damage. As always, test your cable before installing it in a wall or around a room. My test bench looks like this: AMD 5900x, 32 GB DDR4 3600 RAM, RTX 3090 and NVME M.2 memory. The PC goes to two monitors via the display port and to the TV on the other side of the room via HDMI 2.1. So I need a 50 foot cable. I routed my current cable through conduit along the wall moldings and around the closet door. Testing with this setup, I was able to get 4k (3840 x 2160) at 120Hz with 10-bit color and HDR capabilities on my LG GX OLED TV. Variable refresh rate works as it should on this TV, using the G-Sync Compatible mode enabled in the Nvidia Control Panel. When playing new games at 4k, even the 3090 can't always support 120 fps to match the panel's native refresh rate with vertical sync. This is where VRR (g-sync) comes into play. Instead of a TV with a fixed refresh rate like 60Hz or 120Hz, it adjusts the display's refresh rate to the game's frame rate using information from the GPU. As a result, frame rate fluctuations do not result in stuttering associated with drops below the native refresh rate, and no tearing associated with VSync disabled. (VRR can't fix broken game engines, so if the game has bad framerates like Shadow Warrior 2, you might still stutter) I'm happy to report that HDR works too. With a bad cable, you'll get flickering, blank screens or see pixelated snow artifacts in the picture when trying to enable HDR. This was not the case with this cable. I had HDR enabled in the attached video during the Cyberpunk review, but this particular game isn't a good representation of HDR. I later tried it with Resident Evil Village and it looks really good in this game. I briefly tested this cable with PS5, there was no popping or flickering screens like I did when using full bandwidth on PS5 with my old 50.18Gbps cable at 4k60. With this cable everything was as it should be. This cable is currently somewhat unnecessary for the PS5 as it does not use HDMI 2.1 capabilities other than 4k120hz. VRR and Auto Low Latency are expected to be available in a future update. I don't use eARC so I can't speak to the functionality of this cable with a receiver or soundbar. I suspect if it works that well with the RTX 30 series then it's good for eARC, but ultimately I can't confirm that since I haven't tested it. I also don't have an 8k display so can't test 8k60 so can't speak on that functionality either. Final Thoughts: The construction of the cable appears to be solid for a fiber optic cable, although you still need to be careful when handling and routing the cable. This cable is suitable for gaming on HDMI 2.1 graphics cards. For this purpose I can fully recommend this cable. **Additional Notes**** If you are watching a video and it seems to stutter, it is due to the difference between the TV's refresh rate, which is variable, and my camera. In this particular case, the TV's refresh rate is between 70Hz and 117Hz, and my camera (Galaxy Note 9) is fixed at 60Hz. Trust me when I tell you personally, he doesn't stutter or tear. ** LG TV VRR hidden menu says "Free Sync Info" but it runs in G-Sync compatible mode because I have Nvidia card. Free sync is not activated on the TV. That's what LG calls this information screen. I think they may have changed the name to match the GPU in this year's OLED models. ** To reiterate from the video, there is an error icon on the refresh rate menu screen reporting a refresh rate of 0.1 to 5.5Hz when the resolution is set to 4k120. If you lower the resolution or refresh rate, they report the correct values. ** "Instant Game Response" is LG's notice of "Low Latency Automatic Mode". This is an HDMI 2.1 feature that switches the TV to game mode when a game is detected.