What is the difference between HDR10 and HDR400 ?

[Coolday]

And is it worth upgrading from HDR10 to HDR400 ?

[IronSoldier]

hdr10 is a standard for HDR in general.

hdr400 is a substandard from VESA to specify maximum of 400 nits

 

Better to look at what monitor/screen you use now and compare it spec wise to one you're looking at.. 400 still isn't a lot of brightness for HDR.

[SPARTAN VI]

HDR10 is the overall Vesa CTA display standard while HDR400 indicates it is a HDR10 compatible display at 400 nits. Asking if you should upgrade from HDR10 to HDR400/600/1000 and so on is like asking if you should "upgrade from WiFi to 802.11ax." You're comparing an overall standard to a very specific slice within that standard.

[jrhaberland]

1 minute ago, IronSoldier said:

hdr10 is a standard for HDR in general.

hdr400 is a substandard from VESA to specify maximum of 400 nits

 

Better to look at what monitor/screen you use now and compare it spec wise to one you're looking at.. 400 still isn't a lot of brightness for HDR.

Check out this article that describes the difference between the two:

Not all HDR is created equal!

[SolarNova]

The biggest problem with HDR400 /600/ etc, is that they base the standard on 'peak' brightness rather than 'real scene' or full field brightness. As such u can get 10 different HDR400 displays and they will all behave differently in real world use.

 

hence its best to check reviews (real tested reviews, not subjective opinion or 'overviews')

[Coolday]

thanks guys

 

I was comparing between mine https://www.samsung.com/us/computing/monitors/gaming/27--chg70-gaming-monitor-with-quantum-dot-lc27hg70qqnxza/#specs

 

and TUF Gaming VG27WQ

[Glenwing]

1 hour ago, SPARTAN VI said:

HDR10 is the overall Vesa display standard while HDR400 indicates it is a HDR10 compatible display at 400 nits. Asking if you should upgrade from HDR10 to HDR400/600/1000 and so on is like asking if you should "upgrade from WiFi to 802.11ax." You're comparing an overall standard to a very specific slice within that standard.

This is wrong. HDR10 is a CTA standard, not a VESA standard. They have nothing to do with each other.

[SPARTAN VI]

15 minutes ago, Glenwing said:

This is wrong. HDR10 is a CTA standard, not a VESA standard. They have nothing to do with each other.

Thanks, but it seems a little more nuanced than that. TIL that Vesa has their own HDR specification, DisplayHDR, which is the spec that the OP is looking at with the TUF Gaming VG27WQ. OTOH, OP's current Samsung advertises HDR10 compliance, which as you pointed out is CTA's standard. According to the article @jrhaberlandposted, Vesa's DisplayHDR includes the HDR10 spec then "adds more requirements."