Question / Help Dedicated Streaming PC Build Inquiry - Slow/Slower Preset

C

clifftrials

New Member
Hello,

I have some $$$ to blow and was interested in creating a dedicated streaming PC capable of "slower/slow" preset within OBS @ 720p48fps-60fps. My fear is blowing all this money onto a system that my current computer can already achieve so I'm hoping somebody in this forum could possibly provide some input.

Here's what my current PC can handle:

Single PC (Game and Stream on same PC)

OS: Windows 10 64-bit
Capture Card: Avermedia C985
CPU: i7 3770k @ 4.3GHz
Bitrate: 2870 kb/s

Downscale: 1.50 (1280x720)
Filter: Bicubic sharper
FPS: 48

CPU Preset: Medium
Game: Fallout 3 (modded)

In the future, I would like to achieve similar broadcast settings however with a CPU Preset of "slower or slow." Thus, I thought perhaps I should make maximum use of my capture card and build a second PC that dedicates 100% of its CPU to streaming. Has anybody achieved similar settings with an i7 5820k (or higher) in a Dedicated PC? I have researched on the googles and found a lot of "it should be able to handle" but haven't been lucky enough to find clear results. Any input is greatly appreciated!

TLDR: What are some CPU(s) confirmed capable of slower or slow preset @ 720p48-60fps in a dedicated streaming system?
 
Really depends on the game you're playing; how much action there is on-screen and how much full screen motion play a big part in encoder load. In the case of FO3, also which mods you're using specifically, as many can dramatically increase load and visual detail.

The only one I can point at as being likely able to do it with just about anything on 720p would be a i7-5960X.
But it's untested, as generally no one throws that kind of money at it, given the reducing rate of returns on going to slower presets... it doesn't improve the visual quality that much. It's polish, not a magic bullet.

If you want a 'yes, it can do it', take a look at LethalFrag's recent build if you have around $7K to spend. I'd probably go for fewer core, higher-clocked Xeons though, he capped out at being able to use 30 threads, so a pair of 8-core HT Xeons with higher per-core clockspeed would likely be a bit cheaper, while still providing 32 cores (30 for encoding, 2 for OS overhead and game use) and better overall performance. That said, he can turn off hyperthreading and have 20 *real* cores.

Short version, stepping up to a 5820/30 will get you better encoding performance and capability, but no one can guarantee what you'll be able to run with it as it's dependent on a lot of variables.

Also, 48fps is bad. Use full-integer framerate divisors (1=60, 2=30, 3=20, 4=15; unless you have a 144hz monitor at which point 48 is a full-integer div of 3) or you'll end up with uneven playback rates. 48fps is almost definitely the result of somebody taking the 24fps common film rate and doubling it, then coming up with ridiculous and nonsensical reasons to support/explain it.
 
FerretBomb said:
Really depends on the game you're playing; how much action there is on-screen and how much full screen motion play a big part in encoder load. In the case of FO3, also which mods you're using specifically, as many can dramatically increase load and visual detail.

The only one I can point at as being likely able to do it with just about anything on 720p would be a i7-5960X.
But it's untested, as generally no one throws that kind of money at it, given the reducing rate of returns on going to slower presets... it doesn't improve the visual quality that much. It's polish, not a magic bullet.

If you want a 'yes, it can do it', take a look at LethalFrag's recent build if you have around $7K to spend. I'd probably go for fewer core, higher-clocked Xeons though, he capped out at being able to use 30 threads, so a pair of 8-core HT Xeons with higher per-core clockspeed would likely be a bit cheaper, while still providing 32 cores (30 for encoding, 2 for OS overhead and game use) and better overall performance. That said, he can turn off hyperthreading and have 20 *real* cores.

Short version, stepping up to a 5820/30 will get you better encoding performance and capability, but no one can guarantee what you'll be able to run with it as it's dependent on a lot of variables.

Also, 48fps is bad. Use full-integer framerate divisors (1=60, 2=30, 3=20, 4=15; unless you have a 144hz monitor at which point 48 is a full-integer div of 3) or you'll end up with uneven playback rates. 48fps is almost definitely the result of somebody taking the 24fps common film rate and doubling it, then coming up with ridiculous and nonsensical reasons to support/explain it.
Click to expand...

Thanks for the quick reply! I was afraid that not many tests have been recorded with the 5820/30. I am highly considering going the 5960X route, but then I may use that as my all-purpose PC instead of a dedicated system. I am indeed running loads of high quality texture mods, ENB, and other heavy mods in FO3.

I do have a 144hz monitor, but I was just watching the playback through testing in the twitch VODs and noticed @48 fps it looked smoother than 30, but less pixelated than 60 fps while in high motion (with the same bitrate)--I was aiming for a medium ground in this sense. I will revisit this test and try 60fps again. Thanks again for the input!
 
The 5960X is an expensive CPU. But also consider OC, once you hit ~4,5GHz, you get the best gaming performance and still enough horsepower for the encoder.

I have the i7 5820K @ 4,5GHz (4,3 right now due to high temps). I can stream and play at the same rig, while using 1080p 60FPS fast preset. Thats about 60-70% CPU-load in motion-heavy games. But remember that not every CPU is capable of hitting 4,5GHz and think about cooling that beast.
 
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