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What is the amount of GPU MEM available per card?
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wait for the 3090 supposedly 24 gig? i have a 1080ti, i could maybe test something?
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Originally Posted by: daniel514  Hi
I got two brand new workstations dedicated to vMix:
i7-9800x
ASUS WS X299 SAGE
32 Gb Ram
1TB NVME
RTX 2070 8 GB
Some mix of BMD DL 8K and duo... lot of SDI inputs!
So i an quite happy with my builds...
what are your thoughts about the 2070 and the blackmagic decklink 8k ? does the decklink work reliably or any problems with it ? have you run four 4k streams into vMix with DL 8k ? do you know if the 2070 can encode a 1080 stream and a 4k recording at same time without any problems ?
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Originally Posted by: mtone Originally Posted by: daniel514 Hi
I got two brand new workstations dedicated to vMix:
i7-9800x
ASUS WS X299 SAGE
32 Gb Ram
1TB NVME
RTX 2070 8 GB
Some mix of BMD DL 8K and duo... lot of SDI inputs!
So i an quite happy with my builds...
what are your thoughts about the 2070 and the blackmagic decklink 8k ? does the decklink work reliably or any problems with it ? have you run four 4k streams into vMix with DL 8k ? do you know if the 2070 can encode a 1080 stream and a 4k recording at same time without any problems ? To me 2070 is quite enough for my use! I did run 8x 4K 30p over two DL 8k with no problems testing it for hours! (i use a DL video hub 40 to share a Z Cam) To me DL were reliable 100% of use over years with many models i own ...: 1x old quad 4x DUO 2 2 mini 1080 1 mini 4K Plus recent 2x DL 8k For the HW NVENC encoding, i do record 2X 4K 30p pushing the card encoder to 50% zero drop frames! I you want to scratch your head about NVENC... look at: https://www.elpamsoft.com/?p=Plex-Hardware-TranscodingFor what i understand 2070 and 2080 have the same NVENC Power!
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Originally Posted by: DWAM I don't think it as much to do to any readings availables from Task manager or gpu-z, it seems to be an amount of directly accessible cache memory available on the card, from what i see it is the same % on the test i do on a 1060 6GB, 2070 8GB or a EC2 g4dn.4xlarge with a NVIDIA T4 16GB! Maybe vMix dev decided of a minimal amount to accommodates all situations and will tweak it in some update and all will change! Her is where i doubt if it worth any big investment into a RTX 2080 or RTX 3090 or any Quadro , if at the end vMix is not using the added 3D power or RAM... i know Quadro "unlimited" number of NVENC... it may work for 8x 1080p30 streams but it wont go so far in 4K streams! that is my position, buy RTX 2070, solid affordable card on a good X299 platform for multi SDI cards and if you want to go crazy on NDI invest in CPU and network! I am looking to understand... i am not certain of anything! Daniel
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Originally Posted by: daniel514 To me 2070 is quite enough for my use! I did run 8x 4K 30p over two DL 8k with no problems testing it for hours! (i use a DL video hub 40 to share a Z Cam) To me DL were reliable 100% of use over years with many models i own ...: 1x old quad 4x DUO 2 2 mini 1080 1 mini 4K Plus recent 2x DL 8k For the HW NVENC encoding, i do record 2X 4K 30p pushing the card encoder to 50% zero drop frames! I you want to scratch your head about NVENC... look at: https://www.elpamsoft.com/?p=Plex-Hardware-TranscodingFor what i understand 2070 and 2080 have the same NVENC Power! thanks.. i find graphics cards a bit tricky to guage without being able to run them in a machine and see what they can do relative to what you need.. from what ive seen though i think 2070 would be ok. when you had the eight 4k cameras running into the two DL 8k cards was that on the system you listed in the first post with the 9800x and the 2070 ? if so, did it show any signs of struggling under that load ? good to hear the black magic cards have been reliable for you..
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Originally Posted by: mtone Originally Posted by: daniel514 To me 2070 is quite enough for my use! I did run 8x 4K 30p over two DL 8k with no problems testing it for hours! (i use a DL video hub 40 to share a Z Cam) To me DL were reliable 100% of use over years with many models i own ...: 1x old quad 4x DUO 2 2 mini 1080 1 mini 4K Plus recent 2x DL 8k For the HW NVENC encoding, i do record 2X 4K 30p pushing the card encoder to 50% zero drop frames! I you want to scratch your head about NVENC... look at: https://www.elpamsoft.com/?p=Plex-Hardware-TranscodingFor what i understand 2070 and 2080 have the same NVENC Power! thanks.. i find graphics cards a bit tricky to guage without being able to run them in a machine and see what they can do relative to what you need.. from what ive seen though i think 2070 would be ok. when you had the eight 4k cameras running into the two DL 8k cards was that on the system you listed in the first post with the 9800x and the 2070 ? if so, did it show any signs of struggling under that load ? good to hear the black magic cards have been reliable for you.. Yes : 9800x RTX 2070 WS x299 SAGE 32 GB RAM Let's push it a bit...: 8x 1080p60 8x 4Kp30 3 x multicorder 4K30p... NVENC to 70% (NVENC is used only for mp4 recording, without it the card run at 22% 3D) GPU CPU stats on the screen capture! i don't expect to push this system so much! I am just benchmarking it... PS: i ad to put a 120mm fan blowing directly over my decklinks sandwich... at some point i eared one card fan winning of over spinning due to eat accumulating it was over eating and dropping frames, now i am confident it will be stable! With multicorder:The 4K cards all dropped 18 frames over 3Hrs... maybe caused by the input as they all suffer the same... i feel fine with it!  Screenshot (23).png (1,186kb) downloaded 25 time(s).Without multicorder: Screenshot (20).png (2,002kb) downloaded 21 time(s).
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nice test.. I noticed on the windows meter it showed 70% on the GPU but no spikes which is encouraging. I also noticed 3D shows 22%, is that reflecting some titles you have used or something else ? good results, given how much you had in the project..
with the 8x SDI, did you run live inputs into each of them ? or were they blank sources ? or was it one source that was repeated across 8 inputs ? im just wondering, if there arent 8 different sources (showing different images) and if there wasnt lots of changing motion would that make it easier for the hardware ? i think still images or something without much motion can be easier to encode and might not stress the system as much ?
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Originally Posted by: mtone nice test.. I noticed on the windows meter it showed 70% on the GPU but no spikes which is encouraging. I also noticed 3D shows 22%, is that reflecting some titles you have used or something else ? good results, given how much you had in the project..
with the 8x SDI, did you run live inputs into each of them ? or were they blank sources ? or was it one source that was repeated across 8 inputs ? im just wondering, if there arent 8 different sources (showing different images) and if there wasnt lots of changing motion would that make it easier for the hardware ? i think still images or something without much motion can be easier to encode and might not stress the system as much ? "All" i ad is 8x 1080p60 + 8x 4Kp30 16 total with over a DL HUB 40x40 feeding 2 cameras with some image feeds. I see it as a PCIE test... all equal to 48 1080p30 inputs! No titles... nothing, just testing the video inputs. the 3 NVENC recordings are not influenced by any camera content change! Stable 70% You bring me back to the root of this tread... GPU MemRecording/streaming NVENC 1080p30 All my SDI inputs GPU Mem: 64% Render time: 12ms
Plus 11 classic titles 1080: GPU Mem: 99% Render time: 17ms Screenshot (25).png (1,300kb) downloaded 14 time(s).
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cool thanks.. its good info to see the tests you have done..
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Originally Posted by: mtone cool thanks.. its good info to see the tests you have done.. Also be sure to check the check-box that says "High Input Performance Mode" in vMix settings to utilize more than 3GB of VRAM on the GPU. Without it your project utilizes 100% in vMix GPUMem and render time was about 22-50ms and with it checked, the GPU Mem dropped to 48% with a render time of about 0-2ms.
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