Question about Primewire HDMI Cable 2.1, 8K @ 120Hz / 4K @ 240Hz DSC, Ultra High Speed, Nylon Jacket, HDR, ARC

With an HDMI 2.1 cable that supports 8K @ 120Hz or 4K @ 240Hz with Display Stream Compression (DSC), there are some restrictions to consider when it comes to using a 165 Hz display.

- HDMI 2.1 specifications: HDMI 2.1 cables can only support higher refresh rates such as 240Hz at 4K with DSC. Without DSC, the maximum supported refresh rates for 4K are typically limited to 144 Hz.
- 165 Hz refresh rate: As 165 Hz is between the standard supported refresh rates, the cable cannot natively support this specific rate. It would be limited to the next lower supported rate, such as 144 Hz, unless the display and device support special adjustments or compression methods, which are not standard.
- Gaming performance: To play games like Fortnite at 165 FPS, both the display and the device used (e.g. graphics card) would need to be able to support this specific configuration. However, this is not possible with a standard HDMI 2.1 cable and without special adjustments or compression methods.

To summarise: With an HDMI 2.1 cable that supports 8K @ 120Hz or 4K @ 240Hz with DSC, you cannot automatically use 165 Hz on a 165 Hz monitor unless there is special support from the display and the device, which goes beyond the standard functions.