HDR can still add value even at 300 nits, depending on your needs and screen type.
HDR can still add value even at 300 nits, depending on your needs and screen type.
Your monitor meets the minimum brightness requirement for HDR support, so turning it on should work fine. The image quality may not be significantly better than standard brightness, but it will function properly for HDR content.
Adjust the settings carefully. It’s unlikely to make a big difference or feel great.
According to what I've heard, a solid baseline of 600 nits is necessary for an HDR experience. With fewer than that number of local dimming zones, it doesn't add much value. If you're okay with the appearance, you can enable it, but I don't turn it on on my Gigabyte M27Q—this is the standard setting for all HD monitors.
The main goal of HDR is a wider dynamic range. It's essentially SDR enhanced with additional stops across both bright and dark areas. This means you require a display capable of handling intense brightness as well as one that can show deep blacks or near-black levels. LED panels remain active continuously, so without full array local dimming—meaning individual zones that can be turned on or off, ideally many in number—you're limited to gray tones. When brightness stays below 600 nits, the contrast between white and gray isn't sufficient for clear differentiation.
I don’t know much about computers, but I’ve only used it on a screen with 300 nits. My TV that handles HDR works fine at 600 nits. For the top experience, you’d want something around 1000 nits with many adjustable brightness areas.