If OBS is open, fps drop to 38-48 fps

[BackPa]

Hello, game run 60+ fps on my RX 5700XT and R9 3900X. But when I open OBS, fps drop to 35-48+-fps. Sometimes it goes back to 60fps, but mostly not (same with and without stream). There is not problem with CPU - load about 50%. Anyone with this problem? ( https://www.twitch.tv/videos/730219807?t=00h09m30s )

[Ext3h]

Messaggio originale di BackPa:

Hello, game run 60+ fps on my RX 5700XT and R9 3900X. But when I open OBS, fps drop to 35-48+-fps.

Do you have any preview windows etc. open in OBS?

You want to avoid *anything* which could potentially add GPU load, or causes additional data transfers from CPU to GPU. Not because it's "expensive", but because this game is pretty latency sensitive due to putting a lot of stress on the PCIe bus as it is.

Also make sure your GC573 sits in a slot where it has PCIe lanes directly from the CPU, and not shared with the GPU via a PCIe switch on the mainboard.

Also be aware that the GC573 is still quite demanding on your system (with regards to DRAM bandwidth, PCIe bandwidth etc.), so it's not actually a good choice to use in the system you are gaming on! Don't forget that the GC573 is not encoding on the capture card, but encoding is done either on CPU or on the GPU, depending on your configuration! Encoding on the CPU is quite DRAM bandwidth intensive, and that is directly conflicting with a game like this.

If you seriously consider gaming on the same machine you are encoding on, then I can only urge you to invest into proper workstation class hardware. That means primarily stepping up to quadchannel DDR4 (for the much needed memory bandwidth for encoding). That's the step from AM4 to TR4 socket...

[BackPa]

TR4 is not for me. I play about 3-5 games per year. FPS start drop even without recording/streaming. Just open OBS and FPS drop. Disable preview do not help. I have it in PC because I want play in HDR on my LG OLED E9 and dual setup is expensive and wasting money. I do not have donate or etc. I stream only for fun. Do you think, PCI-E x16 4.0 is not capable fort this solution? I not. But who knows.

[Edifier]

Messaggio originale di Arc:

Messaggio originale di Edifier:

. Seeing that Intel CPU outperforms AMD in games most of the time. Even Intel Budgets CPU outperform higher end AMD CPU.

Sometimes I am amused by internet trolls and folks not knowing their own about modern HW :3

Intel outperform AMD in games. When you do FPS leaderboards Intel CPU are in the top every single time. Often they are all taking up spots in the top 10 leaderboards.

AMD can do better on workstation loads but they are not better than Intel in games. This is just a fact. It has nothing to do with fanboyism or being a troll.

The i7 8700K outperform basically all AMD CPU to date and with that you can run whatever streaming software you want.
https://www.gamersnexus.net/guides/3589-best-cpus-of-2020-so-far-gaming-production-overclocking-budget

When AMD is winning in workstation loads Intel isn't far behind with their top end CPU either.

[BackPa]

Intel is better in games.. but only in 1080p. In 1440/4K it is draw. Mostly. ANd on my R9 3900X I can play and stream on one PC. With Intel it is impossible. Or not, you can, but you will pay twice a price and power comsumption will 300W instead of 140W. And if you want update oyur CPU, you must bought new motherboard... I had INtel more than 10 years... but when first Ryzen comes, Intel go out from my PC.

[Arc]

Messaggio originale di Edifier:

Intel outperform AMD in games. When you do FPS leaderboards Intel CPU are in the top every single time. Often they are all taking up spots in the top 10 leaderboards.

AMD can do better on workstation loads but they are not better than Intel in games. This is just a fact. It has nothing to do with fanboyism or being a troll.

It's like GN runs GTX2080Ti on 1080p High for very specific purpose of performing CPU tests instead of leveling everything with real life settings, dayum, what a discovery :3

Intel is better for pure high-framerate gaming, undoubtedly.

But calling unrealistic test condition as your metric in an out of context discussion is a bit troll-ish.

[Edifier]

Messaggio originale di Arc:

Messaggio originale di Edifier:

Intel outperform AMD in games. When you do FPS leaderboards Intel CPU are in the top every single time. Often they are all taking up spots in the top 10 leaderboards.

AMD can do better on workstation loads but they are not better than Intel in games. This is just a fact. It has nothing to do with fanboyism or being a troll.

It's like GN runs GTX2080Ti on 1080p High for very specific purpose of performing CPU tests instead of leveling everything with real life settings, dayum, what a discovery :3

Intel is better for pure high-framerate gaming, undoubtedly.

But calling unrealistic test condition as your metric in an out of context discussion is a bit troll-ish.

Unrealistic test conditions? What?
They run games at highest settings and see which CPU gets the most out of the game. Intel wins in all of those tests.

Are the AMD tests for workload tests unrealistic for Intel CPUs?

Messaggio originale di BackPa:

Intel is better in games.. but only in 1080p. In 1440/4K it is draw. Mostly. ANd on my R9 3900X I can play and stream on one PC. With Intel it is impossible. Or not, you can, but you will pay twice a price and power comsumption will 300W instead of 140W. And if you want update oyur CPU, you must bought new motherboard... I had INtel more than 10 years... but when first Ryzen comes, Intel go out from my PC.

Stronger Intel CPU can do 4K just fine with a RTX 2080ti just fine. It's ridiculous if you think Intel CPU can't Stream.
You switching to Ryzen does not mean it's the best thing ever.
Switching motherboard will happen for Ryzen CPUs and specially if you want that pricey AMD CPU with buttload of cores.

[Ext3h]

Messaggio originale di BackPa:

TR4 is not for me. I play about 3-5 games per year. FPS start drop even without recording/streaming. Just open OBS and FPS drop. Disable preview do not help. I have it in PC because I want play in HDR on my LG OLED E9 and dual setup is expensive and wasting money. I do not have donate or etc. I stream only for fun. Do you think, PCI-E x16 4.0 is not capable fort this solution? I not. But who knows.

I'm not quite sure if disabling the preview is actually sufficient, or if it still keeps the capture active regardless. (Just capture, not encoding.)

Debugging that requires some knowledge about ETW / GPUView, in order to check where the slow down originates precisely.

But my first guess would still be that OBS is downloading data from the capture card in full 4k resolution even when idle, and that's either eating into PCIe transfers or memory bandwidth. In the first case, check the handbook for your motherboard how the PCIe-slots are assigned, not all of them are connected directly to the CPU. For the second case, well, no easy solution there, other than maybe reducing capture resolution from 4k to FHD.