Are all HDMI cables the same?

No, not all HDMI cables are the same. While all HDMI cables have the same basic function of transmitting audio and video signals from one device to another, they can differ in terms of their capabilities, quality, and features.
For example, HDMI cables can differ in terms of their bandwidth capacity, which can affect their ability to support certain resolutions and frame rates. Higher bandwidth cables, such as HDMI 2.1 cables, are capable of supporting 4K and even 8K resolutions at higher frame rates, while older HDMI cables may not be able to handle these higher resolutions and frame rates.
HDMI cables can also differ in terms of their length, durability, and additional features such as Ethernet connectivity, ARC (Audio Return Channel), and CEC (Consumer Electronics Control) support. It's important to choose the right HDMI cable for your specific needs and devices to ensure optimal performance and compatibility.

Does it matter what HDMI cable you use?

Yes, the type and quality of HDMI cable you use can affect the performance of your audio and video equipment. For example, if you have a 4K TV and want to watch content in 4K resolution, you'll need an HDMI cable that is capable of supporting 4K video. In general, a higher quality HDMI cable can also provide better signal transfer, less interference, and fewer signal dropouts or glitches. However, it's important to note that buying the most expensive HDMI cable doesn't necessarily guarantee the best performance. It's important to choose a cable that is appropriate for your specific needs and equipment.