CPU for editing 10 bit 4:2:2 h.264/265

Oh, and nvidia just updated their encoders and decoders specs with 50 series:

https://developer.nvidia.com/video-enco ... matrix-new

...At the moment 5080 seems to be scarse, I see it listed for 2* suggested nVidia price. I will wait a bit and see. If the prices won't drop, the used M1 Max Macbook will be better choice. For $999 RTX 5080 is better for me (cheaper).

Right now there are M1 Max MacBook Pro 16s on eBay for < 1k, which is a entire computer for less than just the 5080 GPU price (if you could get it) but the real 5080 price is 2x that.

...Seems 6th gen NVDECs should be able to decode 4 streams of 4k25p easily. And 5080/5090 have 2 of them. If I remember correctly even 20 series were able to decode 7-8 streams of LGOP at once, but it was 8bit 4:2:0. Maybe they were able to decode more, but my storage was saturated when I tested this....

The 5080/5090 NVDEC/NVENC seems good, but whether Resolve can fully harness multiple NVDEC units in parallel on the various single and multi-stream H.264/H.265 scenarios is unclear. This Puget Systems table has some data, but it's the 5090, not the 5080, and the test conditions and other details are unclear: http://uploads.disquscdn.com/images/340 ... 6ef711.png

Right now there are M1 Max MacBook Pro 16s on eBay for < 1k, which is a entire computer for less than just the 5080 GPU price (if you could get it) but the real 5080 price is 2x that.

Unfortunately in my country used M1 MAX MBP 16s are around 2k USD, sometimes you can score one with 32GB a bit cheaper, but I would prefer 64GB one, since the difference in the price is usually ~$150.
That's why I'm looking at 5080 . I'm monitoring used market of M1s and prices of 5080 .

The 5080/5090 NVDEC/NVENC seems good, but whether Resolve can fully harness multiple NVDEC units in parallel on the various single and multi-stream H.264/H.265 scenarios is unclear. This Puget Systems table has some data, but it's the 5090, not the 5080, and the test conditions and other details are unclear: http://uploads.disquscdn.com/images/340 ... 6ef711.png

2070 and 4080 was able to decode 7+ H264 8bit 4:2:0 very efficiently in DR. So I think 50 series should be fine too. I hope until the prices of 5080 become real (MSRP) there will be much more reviews of them in DR on YT and also BMD will solve any problems (if they exist).

I'm really grateful for your and Uli's tests with my timeline/project. Hope this is also helpful for other users.

Someone said 5070 Ti has 2 decoders ... nvidia page sais it has ONE. Only 5090 and 5080 has two.

I got decoder and encoders mixed up, 1x NVDEC , 2x NVENC

You can check here https://developer.nvidia.com/video-enco ... matrix-new

Not sure anyone is still interested in that topic in the era of DR20 and RT50 series.

But I got M2MAX based MBP 16".

And it can play the test timeline I've showed in this topic at 2x without dropped frames. At 4x there are few dropped frames here and there but it's till much smoother than 1x on my RTX 4080 based PC.
It can also play backwards H265 10bit 4:2:0 ... not smooth anymore with 10bit 4:2:2 codecs played backwards (but still 4 4k streams).

I'm talking here about the timeline with four 4k 25p streams of 10bit 4:2:2 H264 scaled to 0.5 on 4k timeline.
All 4 clips are graded with dual CST.

I have to say this is very impressive, especially taking into account that this computer draws 35W of energy tops. And seems this timeline impact on power draw is ~20W (compared power draw when it's played at 2X and not played).

A 10th gen Intel laptop IGPU should be able to do that. Or an 11th gen desktop. The laptop is from before Covid.

I think the Intel claim is multiple 8K streams. I know I've had no problem playing 8k 60 on the IGPU

The Intel devices support H.265 4:2:2, not H.264 4:2:2.

Can someone please confirm that the new RTX 50-series (specifically the RTX 5070 Ti) is supported in DaVinci 20 for H.264 10-bit 4:2:2 hardware decode?

I generally run 5 or 6 Panasonic GH5s in multicam concert captures in the space-saving UHD 150-Mbit 10-bit 4:2:2 in order to manage the amount of SSD (and HDD) space required for redundant editing and backup. Right now, I'm pretty much confined to using the M4 Max Studio for this work, which of course, is absolutely fine, but my Win11 machine is where I do all the multi-track audio work, and it'll be easily a year before I can do it all in the Mac.

The statements I've seen in the DaVinci site mention the H.265 10-bit 4:2:2. I'm already fine with that (ARC A770 video card in Win11) but he Panasonic cameras don't do H.265, only H.264. What's the status of DaVinci Resolve in regards to H.264 10-bit 4:2:2 ?

DR supports that format, what’s missing is hardware support on many PCs.
Recent Macs (Mx) support it.

What's the status of DaVinci Resolve in regards to H.264 10-bit 4:2:2 ?

Sadly Black Magic has historically been quite poor with their documentation

I can't find a V20 version of this document

https://documents.blackmagicdesign.com/ ... 3705210000


In their support notes folder this is the only thing google finds with 'v20'

https://documents.blackmagicdesign.com/ ... _Guide.pdf

And it excludes H.264 as you have seen. So all signs are that BM does not plan to include the 50 series h.264 422 support at this time

Assuming FFMPEG is up to date with NVENC, you would be able to quickly (with HW accel) transcode all that footage to DnxHR HQX or PR422 with FOSS tools and then edit those files easily in Resolve until BM catches up.