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So, currently i've got a 100 / 10 Mbit/s connection (Download/Upload).
This works fine for streaming in 720P @ 60 FPS.
Now, i'll be getting 1000 / 100 Mbit/s in a month or so and i want to try out 1080P @ 60 FPS. I know i've got the bandwidth for it, but what about the hardware?
I've currently got an Avermedia Live Gamer HD which can capture 1080P @ 60 FPS, but the output is only 30 FPS.
Anyone got a recommendation on which card to get?
Also, i'm wondering if my CPU is powerful enough to encode the stream.
It's a 3570K with 8GB ram. (It's a dedicated computer with a capture card, dual PC setup) so it will only handle encoding.
In my main rig i'm using a 3930K, and my thought here is that i'll buy myself a 3960X and use the 3930K for streaming, if the 3570K is weak.
I havn't come across anyone with any experience with streaming in 1080P@60FPS.
Guidance would be very much appreciated.
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Overclocked 3570k can do it, but a 3930k (even at stock) would be nicer. It's really about how good you want it to look. Also keep in mind that a lot of people are still on 1.5 - 5 mbit dl speeds around the rest of the world, so going too high will mean people can't watch it.
The 3960x is not an appreciable difference over the 3930k (unless you make your own program with algorithms designed for a specific cache size), and if you're just going to run them at stock it's a huge waste, as the 3930k with a tiny overclock is better than the 3960x.
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Edit: Sorry misread OP's post
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United Kingdom20299 Posts
Can do it fine on 3570k, particularly overclocked (on a stream box with capture card) but you have the issue of not having many (if any) cards available that will give you 1920x1080@60fps capture.
Your best option IMO would be to go for something like a 4.5ghz overclock on the 3930k and do single-PC streaming (pretty painful on game performance for reasons other than CPU load %), or stick to the 1920x1080@30fps/1280x720@60fps option with capture card, you can stress test and lower presets some if you want like 5-20% more efficiency (more quality at X bitrate)
Ive got ~7mbit down, but twitch basically stops working for streams (long freezes, stuttering) at around 3.5-4mbit bitrate and thats about where you would want to stay below anyway. What GPU/s are you using?
Ive seen people streaming 1920x1080@60fps, but only on single PC setups and only in a few select games like WoW which aparantly have great performance with gamesource in dx11 mode. The CPU usage side should be easy in Starcraft 2 with even a stock 3930k, but not many games have good performance with game/screen capture and full-resolution 60fps capture is pretty much the worst you can do in terms of performance hits. It's highly variable, so you might be able to run fine and stream with single PC setup, but you also might not be able to run at all comfortably because of lower framerates, microstutter, input lag etc
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On January 17 2013 13:28 Cyro wrote:
Can do it fine on 3570k, particularly overclocked (on a stream box with capture card) but you have the issue of not having many (if any) cards available that will give you 1920x1080@60fps capture.
Your best option IMO would be to go for something like a 4.5ghz overclock on the 3930k and do single-PC streaming (pretty painful on game performance for reasons other than CPU load %), or stick to the 1920x1080@30fps/1280x720@60fps option with capture card, you can stress test and lower presets some if you want like 5-20% more efficiency (more quality at X bitrate)
Ive got ~7mbit down, but twitch basically stops working for streams (long freezes, stuttering) at around 3.5-4mbit bitrate and thats about where you would want to stay below anyway. What GPU/s are you using?
Ive seen people streaming 1920x1080@60fps, but only on single PC setups and only in a few select games like WoW which aparantly have great performance with gamesource in dx11 mode. The CPU usage side should be easy in Starcraft 2 with even a stock 3930k, but not many games have good performance with game/screen capture and full-resolution 60fps capture is pretty much the worst you can do in terms of performance hits. It's highly variable, so you might be able to run fine and stream with single PC setup, but you also might not be able to run at all comfortably because of lower framerates, microstutter, input lag etc Oh, seems i have no use for a dual PC-setup at all if i want to stream at 60FPS in 1080P.
Thank you for the information.
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United Kingdom20299 Posts
If there are capture cards that support it, it should be pretty easy, but i haven't heard of any and i think there are bandwidth issues with it or something
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1080p60 capture cards definitely exist, but they run around $1k.
Datapath, blackmagic, or sknet.
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Omg.
Just switched to OBS from Xsplit, 1080@60 FPS with Ultra settings and i still rock a 100 FPS in Sc2.
I'd drop down to 30-40 with Xsplit when i streamed 720p@60FPS.
Wasted money on a capture card for no reason then.
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United Kingdom20299 Posts
www.fraps.com
Benchmark (using the function, min max average fps and frametimes) with Xsplit 1.2 screen region (selected onto sc2 process) and OBS please, same replay, pre-loaded then reset to 0:00, 1920x1080, 30fps, superfast and local record and upload the .txt files somewhere with labels if you can, also with detailed system specs. It would be very helpful. Ty
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On January 19 2013 09:47 Cyro wrote:www.fraps.comBenchmark (using the function, min max average fps and frametimes) with Xsplit 1.2 screen region (selected onto sc2 process) and OBS please, same replay, pre-loaded then reset to 0:00, 1920x1080, 30fps, superfast and local record and upload the .txt files somewhere with labels if you can, also with detailed system specs. It would be very helpful. Ty Local record through Fraps, or a local recording through Xsplit/OBS?
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United Kingdom20299 Posts
Xsplit/OBS using the specifics i said while using the benchmark function of fraps for the whole replay. 2x it if you want. Its extremely odd for you to be getting better performance with OBS screen capture than with your capture card, and im curious to see xsplit 1.2 screen region performance even though you wasnt using xsplit's capture before
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When i run the benchmark in Fraps it runs for about half a second and then it stops.
But just double checking if i got things correct.
I just use screen region on the whole screen, start Starcraft 2 and play through a preloaded replay (at 2x speed?) while i run the benchmark throughout the whole game (When i've got it working).
With the superfast preset, 30 FPS, while i record it?
If so, i just need to fix my Fraps to get it worken.
Doing a local recording seems to have little to no impact though. Using a Ramdisk for local recordings 14 GB/s Read/write (Yes, GigaBytes per second, not Gbit/s).
Hardware specs
3930K running at 4200 Mhz
32GB Ram running at 2000 Mhz
Samsung 830, 256GB SSD disk
Gtx 680
Sabertooth X79 motherboard
OCZ 1000W PSU
Avermedia Live Gamer HD capture card
edit: I'll get around to it in the morning to help you out. Since it's 2:17 AM here i need to sleep. 
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United Kingdom20299 Posts
Theres a checkbox that you have to enable that says "Stop benchmark after [ X ] seconds"
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On January 19 2013 10:21 Cyro wrote:
Theres a checkbox that you have to enable that says "Stop benchmark after [ X ] seconds" Yes, i did check that box and it didn't change the behaviour. Tried 60 seconds, 120 seconds etc. Still only benchmarked for one second.
I'm going to reinstall fraps when i wake up.
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EPT
