265k integrated gpu quicksync performance very low when xmp is turned on

[lictex_]

specs:

msi pro z890 a w/ latest bios ( 7E32v2A73 )

core ultra 7 265k , gpu driver 32.0.101.6790

teamgroup CTCWD596G6400HC32ADC01 48gb*2 xmp 6400mt/s

windows 11 24h2

when encoding 1920x1080@60fps streams with quicksync, obs studio keeps complaining`encoding overloaded` and the resulting video is very laggy.

lower the framerate to 30 fixes the laggy stream, but it still shows a 80% abnormally high video decode load.. (btw why it is named video decode.. this is a encoding task anyway)

so the hardware seems to be functioning pretty correctly with xmp on, its just a massive performance drop.

turn off xmp seems could completely fix the issue. see the tests very below for details.

this pc build has been running heavily for months at 6400mt/s and i havent noticed any ram instability. i do have an nvidia card as the primary gpu though so i actually didnt use the igpu video engine much before.

also it might be worth reading this thread.. it looks just the same but its closed for no reason..

https://community.intel.com/t5/Graphics/Intel-Ultra-265k-Hardware-Decoding-Encoding-Poor-Performance-on/m-p/1655609 

test stream with 1920x1080@60fps 12mbps

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default bios settings: ram 5200mt/s, works fine

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xmp on: ram 6400mt/s, `encoding overloaded!`

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same issue under opensuse tumbleweed.. (i think the 50% there probably means a sum up of the two video engines so its still a 100% load.. )

[Coxxs]

Same problem with MSI Pro Z890-A WiFi, even watching 4K videos on Youtube will overload the hardware video decoder and result in very heavy stuttering. The only workaround is to disable XMP (6400 MT -> 5600 MT). Please fix.

[lictex_]

update: found a workaround here. ive been running this pc with xmp on and soc sa = 0.9volts for around a week now and it seems stable so far..

still quite annoying as the default`auto` voltage should (must) just work fine.. and theres no way to monitor the soc sa voltage so we cant know what the `auto` actually is.. that means the 0.9volts is actually just set by a guess.. this needs a fix.