Devices > Video Cards, Monitors, Televisions, and Projectors
Dropouts when bitstreaming Atmos through an HDMI 2.1 AVR with nVidia 3xxx GPUs
Manni:
--- Quote from: DocCharky on June 21, 2024, 03:21:20 pm ---i7 13700K, Win 11 and drivers always updated.
--- End quote ---
Thanks. will update as soon as I receive and get a chance to test the 4080 super.
Manni:
So, received and installed the Zotac Trinity 4080 Super today.
I did a straight swap again (power off, took the 1080ti out, put the 4080 super in, power on) because I didn't want to change any of the other parameters. This was with the latest 555.99. I only respected the same audio and video settings in MC. Obviously I also set the driver to 10bits.
I selected my longest Atmos movie as a first test, Titanic (3 hours and 14 minutes).
The whole film played without a single dropped frame or Atmos drop, micro or longer freeze.
So it looks like this is definitely a 3xxx specific hardware issue, given that it's solved by both the 1080ti and the 4080 Super.
I don't feel bad about upgrading as the 1080ti turned out to not pass HDR metadata and developed some random sparkling pixels (that neither the 3090 or 4080 have).
The 4080 Super isn't cheap at £959, but at least it's £350 cheaper than the 4080 was a few months ago, and it's the most efficient 4xxx. Almost completely silent, even under load (the 3090 was ok for video playback but sounded like a tornado under heavy load).
The 4080 Super is about 50% faster than my 3090, and it uses a lot less power as it's limited to 320W vs the 350W of the far less efficient 3090.
If this is confirmed in the next few days, I'll definitely keep the 4080 Super and the 3090 will end up in the EGPU for my laptop.
Anyway, not a cheap fix, but I highly recommend it (or another 4xxx) if you can afford to throw money at the problem. Looks like it solved it here.
I'll post some measurements for power use soon, and I'll confirm that all has kept working fine, but so far no issue at all.
By the way, I did my latest test with two Vrrooms in the chain, my usual one between the AVR and the display, and another one between the HTPC and the AVR, to allow me to extract the audio to my Sony HDMI Headphones. Clearly the Vrroom (or I suspect any HD Fury device) isn't related to these issues.
SamuriHL:
Ah man I was just over at best buy this morning, too. LOL I guess I'll have to make a trip cause we really need to be able to use the latest drivers and NOT have these kinds of stupid issues. This sucks. sigh but at least we know the fix.
Manni:
--- Quote from: SamuriHL on June 22, 2024, 02:26:01 pm ---Ah man I was just over at best buy this morning, too. LOL I guess I'll have to make a trip cause we really need to be able to use the latest drivers and NOT have these kinds of stupid issues. This sucks. sigh but at least we know the fix.
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Yeah, I think from now on I’ll just upgrade my GPU when Hendrik does, and buy the same gen and model he does, it should save a lot of grief :)
SamuriHL:
ROFLMAO! Clearly! LOL
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