Quadro GPU for OBS Stream?

[Gubin]

Hey all!

 

Can someone say me if a quad GPU is good for OBS stream? i have a old second pc. It have a i5 4650k cpu what is not good enough to stream 1080p 60fps on a good quality atm. Should i upgrade the CPU oder buy a quadro? 

 

Sry for my english.

 

thx for answer!

[WereCatf]

Why Quadro? Why not a regular Geforce GTX?

[NelizMastr]

Quadro is useless for OBS. Quadros are meant for 3d modeling, rendering etc. in software like Solidworks.

[WereCatf]

1 minute ago, NelizMastr said:

Quadro is useless for OBS. Quadros are meant for 3d modeling, rendering etc. in software like Solidworks.

Not useless as they do have the same NVENC-hardware as the regular Geforces do. They just aren't any better for OBS than the regular Geforces.

[NelizMastr]

Just now, WereCatf said:

Not useless as they do have the same NVENC-hardware as the regular Geforces do. They just aren't any better for OBS than the regular Geforces.

Yeah, I meant to say they offer no benefit. In fact, for the price you pay they're significantly less powerful. While in applications that are Quadro certified a P620 will easily destroy a GTX1070, when it comes to non-Quadro specific workloads, it's just between a 1030 and 1050.

[Gubin]

ok thx all for fast answer! so it mean its better to buy a new cpu and stream with a god x264 renndering right? i mean the nvenc is not that good as cpu x264 as far i see. 

 

[ninbura]

8 hours ago, WereCatf said:

Not useless as they do have the same NVENC-hardware as the regular Geforces do. They just aren't any better for OBS than the regular Geforces.

8 hours ago, NelizMastr said:

Yeah, I meant to say they offer no benefit. In fact, for the price you pay they're significantly less powerful. While in applications that are Quadro certified a P620 will easily destroy a GTX1070, when it comes to non-Quadro specific workloads, it's just between a 1030 and 1050.

Quadros also have the ability to encode / decode unlimited output video streams while Geforce cards are limited to two, additionally higher end Quadros have additional NVENC chips allowing for more bandwidth.

For example when talking bandwidth (live encoding without dropping frames):
Geforce GTX 1050 (1 NVENC Chip) - can encode 1x4K60 output

Geforce GTX 1080 (2 NVENC Chips) - can encode 2x4K60 outputs

Quadro GP100 (3 NVENC Chips) - can encode 4x4K60 outputs

Or when talking about session limits, Quadros have none, very useful for lower resolution outputs like 1080p60 (live encoding without dropping frames):

Geforce GTX 1050 (1 NVENC Chip) - can encode 2x1080p60 outputs

Geforce GTX 1080 (2 NVENC Chips) - can encode 2x1080p60 outputs

Quadro GP100 (3 NVENC Chips) - can encode around 16x1080p60 outputs

Quadro P2000 (1 NVENC Chip) - can encode around 5x1080p60 outputs

While both the GTX 1050 & 1080 have the headroom or encoding bandwidth to encode 5-7 1080p60 stream simultaneously they can only encode 2 due to artificially imposed session limits. I included the P2000 in this use case as it still gives you the ability to encode more than 2 streams if needed at under $300, while the GP100 costs $4000+.

 

8 hours ago, NelizMastr said:

Yeah, I meant to say they offer no benefit. In fact, for the price you pay they're significantly less powerful. While in applications that are Quadro certified a P620 will easily destroy a GTX1070, when it comes to non-Quadro specific workloads, it's just between a 1030 and 1050.

There is a common misconception that when encoding with like generation cards there is no difference but this is not true, as demonstrated above the GTX 1080 actually has twice the encoding bandwidth as the GTX 1050. Meaning if you were streaming to Youtube at 4K60 and wanted to concurrently local record at 4K60 the GTX 1080 could handle it while the GTX 1050 could not, streaming while local recording is a very common use case.

Streaming while local recording also gives Quadros (even at lower resolutions) an interesting use case while using OBS in conjunction with NDI. For example if you wanted to stream to Twitch and wanted to record both your camera and gameplay as separate local files for nondestructive editing you could if you used a Quadro. This is because as mentioned earlier Quadros have no session limits, in this use case you're outputting 3 video streams (camera + gameplay combined, the camera, the gameplay) which exceeds the 2 stream limit on Geforce cards. This could be very useful for someone who wants to upload part of their streams to Youtube without losing quality when zooming in on the camera which many use for comedic effect. Seeing as the Quadro P2000 is less than $300 and has the capability to do so it's really not that impractical.

Nvidia's Video Encode and Decode GPU Support Matrix - https://developer.nvidia.com/video-encode-decode-gpu-support-matrix
Using NDI to record sources separately without overlays by Epos Vox - https://www.youtube.com/watch?v=Pu5JFAIWH8Y

 

6 hours ago, Gubin said:

ok thx all for fast answer! so it mean its better to buy a new cpu and stream with a god x264 renndering right? i mean the nvenc is not that good as cpu x264 as far i see. 

 

Pascal based NVENC chips will get you about the same quality as CPU encoding at preset Very Fast. 

So yes you could get better quality with CPU encoding but it will only be noticeable if you're willing to shell out $300+ for a CPU that can handle medium to low presets. Meanwhile you could pick up a GTX 1050 for around $100 for very decent and watchable quality.

[Gubin]

TheAgnda thx so much for this big and informativ answer. 

 

On youtube you dont find alot about quatdros for OBS Stream to twitch only for records. So thx very much. So im looking now for a 1050+ for a good price.

[Mick Naughty]

Are you gonna stream with the second rid while playing on the other one? Is that what you mean?

[Gubin]

yeah!

i have a elgato HD60 capture Card. and two pcs

[Mick Naughty]

Then you don’t need a gpu. If you want to nvec include the stream you do, but that requires more bandwidth to accommodate. But at the same time a decent gpu should be a bit better than that cpu. 

[Gubin]

thx!