Different bitrate than settings in premiere

[Filip5CDF]

Hi,
I have problem with bitrate after i export video.

For example i set bitrate in Premiere for 15mbps and it exported in 10mbps.

I have this problem only on my MB Pro with M1, on my WIN station i dont have probleme.

In pictures you can find difference between export setting and exported files CBR vs VBR and i tried different settings like higher bitrate or some presets settings like Vimeo, youtube or HQ HD and its always different bitrate than is setting in premiere.

Thanks

Filip

[Christian.Z]

VBR is variable bit rate, when you set to 15 this is the maximum Bit rate, what you are seeing after you export is the average bitrate

[Matias5FA6]

I have the same issue. When i need VBR on 10mbps i need to set it to 17mbps to get an aprox result. 
Bitrate encoding is not working like a intel based