he’s doing something…
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Yeah saw that and directly came over here. ffmpeg + navi seem to have teething issues that is why I suggest a revisit of this some time in the future.
5 streams is what the RX 580 could do while Vega 64 could do ~15. That all was on Win10 since Plex hadn’t enabled AMD acceleration on Linux due to old ffmpeg build used.
Seems like EposVox was using 8mbps source videos? Also, he is doing the opposite, transcoding h.264 to HEVC.
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because we are struggling a bit on the windows site with this, and it is new territory for me, can you document a bit Vega64 ~15 streams? is that a test you are doing? is there a script or some such we can use to test?
These would need couple timings from one speed to see where it goes like that, I dont know how that concludes you need 3600 with …tight timings?
Seems hard to find information on how the RX 5700 and RX 5700XT stacks against the RTX 2060/S and 2070/S since some sources place the RX 5700XT close to the RTX 2070S but some place it significantly lower…granted it’s $100 cheaper.
I wish I could but those were not my tests. Tests were done through Plex, not bare ffmpeg.
Here is the reddit thread relevant to Vega performance: https://www.reddit.com/r/PleX/comments/9q2lw7/amd_gpu_transcoding/
And slothtechtv’s contribution to the AMD Plex tests: https://www.youtube.com/watch?v=aXt06PgEOAU&feature=youtu.be
Basically fire up Plex and start some transcode playbacks.
One way of calculating maximum theoretical simultaneous streams is calculating decoding FPS and encoding FPS, taking the lowest one of those FPS numbers, then measuring VRAM usage per transcode and finding out if the limiting factor is the dec/enc process or the VRAM. Really quite convoluted and theoretical. I don’t know how you could measure FPS enc/dec performance but Nvidia has done it:
Page 6 for NVDEC:
Here are some estimates for Nvidia cards based on Nvidia’s documentation quoted above, testing and some guesswork:
https://www.elpamsoft.com/?p=Plex-Hardware-Transcoding
Maybe their methodology might be of help.
Plex on Windows supports AMD HW accel because of the Microsoft Media Foundation codecs. I think Linux AMD HW accel is still not supported and NVDEC is also not officially supported yet but there is a patch.
That’s a lot easier said than done. It’s also not really worth it for them. Even when they had better GPUs for less money no one bought them anyway. They had no cash for a long time and burned almost all of it on Zen. It is gonna take time. 2020-2021 likely
Amd stock price is massively manipulated. People are actively trying to keep it down. Not to mention there is a lot more than consumer parts driving share price. Desktop is small potatoes. Also the whole market is down today too anyway
It is still over 40 bucks since i bought some at 20, so i’d say it’s doing okay
$32…
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Those will also not be overclockable. I think they’ll only allow overclocking on XT SKUs.
Intel clocks are based on non-AVX workloads. It’s very interesting that Zen 2 doesn’t require an offset to remain stable… Very handy for people using FFmpeg.
My 4960x isn’t stable at 4.4Ghz for FFmpeg on Linux, but is stable with a manual offset to 4.3… Glad to hear Zen 2 requires no offset work. But I will be fully convinced when FFmpeg can remain stable on Linux with a PBO offset.
Lol wat
It’s never broken like $34
Besides the value doesn’t change the fact it’s heavily manipulated and shorted lol
you are correct, I was looking at the wrong number
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No worries, I was looking at it earlier only reason I knew. We’ll get there one day, fam.
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Just updated my Taichi Ultimate BIOS to P3.20 and it seems like the memory overclocking got better (still using my 1700). Though, I’m using 4x16gb dual rank so it may oray not have an impact on 2x8 single rank configs
Nice! That is good to know, thank you. 
I am actually thinking about ripping a second memory kit from another machine and go 4x8. It’s close enough to match, I think. (4000MHz C18, B-die)
I would just manually set all of those to run 3600 17 17 17 35 or something like that. (Ryzen 3000 seems to be running the best with 3600MHz memory at tight timings.)
Yeah that is kinda dissapointing.
Hopefully the prices will change a bit over time.
But now the RX VEGA 64 price drops to like 325 euro kinda makes sense.
Well there are plenty of reviews and benchmarks floating around already.
When it comes to gaming benchmarks in particular from what i have seen,
the 5700 and 5700X are pretty compatitive to 2060/S and 2070/S,
when it comes to their pricings.
However when it comes to the raw gaming performance side of things,
the Nvidia cards are still better in like 80% of the current popular game titles.
But thats fine when they are significantly cheaper.
So yeah kinda depending on the games you play…
And more importantly what you are able to spend in the end.
Any of those cards generally give you a decent 1080p / 1440p gaming experience.
Vega 64 is… Painful…
Especially now, compared to Navi… It eats power like nobody’s business, it’s noisy, it’s hot…
Navi is much MUCH better purchase…
Yup it kinda is.
But i really hope as soon as the custom 5700 cards are going to come out,
that those prices will be more towards the €350,- price mark.