Evaluation of HEVC decoders (SW, Hybrid and HW)

[NikosD]

I have started uploading there too.

[nussman]

Not so bad at all. Thanks for testing.

[Yups]

Originally Posted by NikosD

Good speed.

4K60 FPS HEVC 10bit at 50 Mbps but with the minimum values below 50fps.

Better than I thought.

What about this one ?

http://demo-uhd3d.com/fiche.php?cat=uhd&id=46

It's from Satellite.

Hybrid

Decode= 64-77-117 [16-25]
Playback= 49-60-93 [13-21%]

Decoding is slightly faster in this lower bitrate video, playback roughly the same. Does a GTX 970 support Hybrid 10 bit decoding?

[NikosD]

Originally Posted by Yups

Does a GTX 970 support Hybrid 10 bit decoding?

I am not sure.

You have to run DXVA Checker and look for HEVC_VLD_Main10 in the first page.

[nevcairiel]

Originally Posted by Yups

Does a GTX 970 support Hybrid 10 bit decoding?

No, it does not.

[nussman]

GTX 970 is 8bit hybrid only imho.

[NikosD]

970 would definitely be faster than HD 530 in hybrid 10bit HEVC

[Yups]

It isn't support unfortunately. I will try it next time to make sure though.

[NikosD]

Originally Posted by P.J

Mega allows even big files like 10gb. Got filedropper to work.

After fully uploading the file (it took me 1 hour) I got a message that in order to create a link to share my upload I had to create an account.

It's a free account, but I will not register to a site just to share an uploaded a file.

[P.J]

Originally Posted by NikosD

After fully uploading the file (it took me 1 hour) I got a message that in order to create a link to share my upload I had to create an account.

It's a free account, but I will not register to a site just to share an uploaded a file.

I think the 300Mbps video I have downloaded from filedropper is corrupted, 360MB.

Ok, I'll wait for new link. Mega has ability to resume upload too.

[NikosD]

No, you misunderstood.

My upload finished OK, but I have no option to share the link.

Where is the link ?

You have to make an account on that site, in order to allow you to share the upload.

You can check the integrity of the file you downloaded from filedropper by running 7 - zip or any other program capable of calculating the checksum of the file.

Run 7 - zip with CRC-32 or SHA-1 and post the number here in order to compare it with mine.

[NikosD]

Originally Posted by Yups

CPU only

Decode= 83-99-156 [68-98%] ~130 watts
Playback= 62-70-81 [35-97%] ~127 watts


i7-6700k 4 Ghz @1.15V
HD 530 @1150 Mhz 10.18.15.4274


CPU only is faster in this case, but all 8 threads are running with ~90% load most of the time.

Your CPU results are very fast.

Using LAV x64 with the default settings of Thread to Multi-Threading = Auto I got these results.

Win 10 x64 - Core i7 4790@3.8GHz - DDR3 1600MHz - LAV x64 0.65.47

http://demo-uhd3d.com/fiche.php?cat=uhd&id=97

Decode 52/62/86 CPU avg 91% ~56W CPU package (HWiNFO)
Playback 40/49/58 CPU avg 83% ~56W CPU package (HWiNFO)

Even if I could run Haswell 4790 at 4.0GHz, our difference would be 52% faster for Skylake !

Your fast RAM could be a reason, but I think it's too much even with that.

Which is your setting for threads of LAV x64 and could you benchmark the ASTRA clip too, posting the average of CPU utilization and the setting of threads for LAV ?

Also, how do you measure the Power consumption and for what components exactly ?

It's two and a half times more than mine !!

My CPU voltage is 1.03 V.

[P.J]

Originally Posted by NikosD

No, you misunderstood.

My upload finished OK, but I have no option to share the link.

Where is the link ?

You have to make an account on that site, in order to allow you to share the upload.

You can check the integrity of the file you downloaded from filedropper by running 7 - zip or any other program capable of calculating the checksum of the file.

Run 7 - zip with CRC-32 or SHA-1 and post the number here in order to compare it with mine.

You can create a fake email. Sendspace is good too.

[NikosD]

You are right that your download is wrong.

The CRC32 is 81DA8738

I tried first sendspace but doesn't allow 360 MB upload.

Could you try once more from filedropper ?

How did you manage to download the other two files ?

I'm open to other servers too but without registration and with easy upload method.

@Yups

Did you have problems too downloading the files ?

Is the 300 Mbps file's CRC32 the right one ?

[P.J]

Someone has uploaded it on mega for me, downloading right now:
https://mega.nz/#!RVNy0BhB!DpsJlf5n_...vT0P12VikS3xko

Those two other videos were on sendspace not filedropper.

[NikosD]

So ?

Did you do the tests ?

The results of 300 Mbps file will be interesting, I think.

[Yups]

Originally Posted by NikosD

Your CPU results are very fast.

Using LAV x64 with the default settings of Thread to Multi-Threading = Auto I got these results.

Win 10 x64 - Core i7 4790@3.8GHz - DDR3 1600MHz - LAV x64 0.65.47

http://demo-uhd3d.com/fiche.php?cat=uhd&id=97

Decode 52/62/86 CPU avg 91% ~56W CPU package (HWiNFO)
Playback 40/49/58 CPU avg 83% ~56W CPU package (HWiNFO)

Even if I could run Haswell 4790 at 4.0GHz, our difference would be 52% faster for Skylake !

Your fast RAM could be a reason, but I think it's too much even with that.

This is a big difference indeed. Impossible to say how much the memory speed affects it, maybe I will re-test with DDR4-2133 later this week.

Originally Posted by NikosD

Which is your setting for threads of LAV x64 and could you benchmark the ASTRA clip too, posting the average of CPU utilization and the setting of threads for LAV ?

Astra Clip:

Decode= 96-114-171 avg 72%
Playback= 66-84-87 avg 63%


Looks like CPU only handles a lower bitrate video much better. In particular CPU load is lower.

Originally Posted by NikosD

Also, how do you measure the Power consumption and for what components exactly ?

With Energy Check 3000 from the entire system.

[P.J]

Originally Posted by NikosD

So ?

Did you do the tests ?

The results of 300 Mbps file will be interesting, I think.

http://forum.doom9.org/showpost.php?...&postcount=710

[NikosD]

OK.

Here we are with all clips tested between Skylake HD 530 vs Nvidia GTX 960 using LAV x64 - DXVA native - Win 10 x64 in Decode and Playback (1280 x 720) Benchmark mode using DXVA Checker v3.60 of course (as always).


I have to thank a lot, two members of the forum, Yups and P.J for testing their hardware and giving an amount of their time for the benchmarks.

I just copied their results !

Clips:

1) LG_4K_View-the-Feeling.mp4 - 4K@30fps - 25Mbps
http://demo-uhd3d.com/fiche.php?cat=uhd&id=101

Decode:
Skylake HD 530 154/178/204
Nvidia GTX 960 145/149 /161

Playback:
Skylake HD 530 146/168/202
Nvidia GTX 960 143/148/158


2) Samsung 4K@30fps-80Mbps file -0230
http://www.imaging-resource.com/PROD...ProQuality.MP4


Decode:
Skylake HD 530 160/164/168
Nvidia GTX 960 117/118/120


Playback:
Skylake HD 530 147/155/160
Nvidia GTX 960 114/115/118



3) Samsung 4K@30fps-80Mbps file -0235
http://imaging-resource.com/PRODS/sa...HD_Sample1.MP4


Decode:
Skylake HD 530 194/202/204
Nvidia GTX 960 119/122/126

Playback:
Skylake HD 530 174/190/201
Nvidia GTX 960 117/118/121



4) Crowd_run 4K@50fps -100Mbps file
https://www.sendspace.com/file/fvgk57


Decode:
Skylake HD 530 160/162/164
Nvidia GTX 960 129/132/134


Playback:
Skylake HD 530 143/151/164
Nvidia GTX 960 128/131/133


5) Crowd_run 4K@50fps -200Mbps file
https://www.sendspace.com/file/usyase


Decode:
Skylake HD 530 133/137/138
Nvidia GTX 960 104/107/109


Playback:
Skylake HD 530 120/129/132
Nvidia GTX 960 104/107/109


6) Crowd_run 4K@50fps -300Mbps file
http://www.filedropper.com/crowdrun2160p50300mbps
or
https://mega.nz/#!RVNy0BhB!DpsJlf5n_...vT0P12VikS3xko


Decode:
Skylake HD 530 112/120/123
Nvidia GTX 960 83/93/97


Playback:
Skylake HD 530 102/114/119
Nvidia GTX 960 81/92/97


Comments:

1) There is a clear winner, which is Skylake in both pure Decode mode and Playback too, but with less distance for the latter.

2) Both VPUs inside GPUs, are more than capable of 4K@120fps using 100Mbps HEVC 8bit clips.

3) Samsung clips, especially the second one, favors a lot the fixed - function unit of Intel HD 530 (70% faster than Nvidia).
I don't know how common that could be, with other HEVC 8bit encodings.

4) Skylake HD 530 is close to 4K@120fps even for 300 Mbps clips. It is definitely designed for high bandwidth clips.

[NikosD]

@Yups (more) and P.J (a little)

Did you disabled ALL driver enhancements regarding video in driver's control panel ?

I always do that because especially for Intel iGPUs those enhancements add significant GPU load producing worse image most of the times and drop performance.

It's the first thing I do after installing the driver.