slothmaster2001
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I dont know a lot about what causes bottle necking. I plan on upgrade my video cards soon to a pair of 1080 or 1080ti. I wanted to make sure my system isnt going to be bottle necking anything. If someone could explain it in noob terms that would be great. Thanks!
X99 classified i7 5930k 2x Evga gtx 1080ti FE 32gb corsair dominator 2666 Corsair ax1200i Custom watercooling loop Lian Li pc-08
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the_Scarlet_one
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Re: please help me understand bottle necking
2017/03/02 06:10:18
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What cpu do you have? You posted in the x99 forum, so if you are on the x99 platform, you likely arent going to be bottlenecking anything.
Bottlenecks occur when you buy or keep outdated hardware, like a z67 motherboard, with an i7 2700k (just an example). If the cpu can not keep up with the new graphics cards, it causes a bottleneck. Essentially, the graphics card is being held back because the cpu can not process the required instructions fast enough for the gpu to be properly utilized.
If you are on x99, you are going to have any issues unless your cpu is severely underclocked, but that is an easy fix.
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slothmaster2001
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Re: please help me understand bottle necking
2017/03/02 06:54:09
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yeah I am talking about my x99 build in my signature. and its slightly overclocked to 4.0ghz. I wasnt sure if with the x99 motherboards being a few years old if they were considered outdated. or if my cpu was enough for a pair of 1080 ti. I just dont want anything holding back these cards once I get them. I do game at 4k. so I need all the power I can get.
X99 classified i7 5930k 2x Evga gtx 1080ti FE 32gb corsair dominator 2666 Corsair ax1200i Custom watercooling loop Lian Li pc-08
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bdary
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Re: please help me understand bottle necking
2017/03/02 08:21:11
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If you were to put those two 1080 Ti's on your X58 platform, then you'd see a bottleneck from the CPU (at stock clocks for sure) and possibly ram speed as well to some degree. On your X99 system with that CPU at 4.0GHz, I don't think you'll notice any bottleneck.
One thing to keep in mind about bottlenecking. No matter what hardware you have or how new it is, there is always at least one piece of that hardware that will be the slowest (weakest link) and you could technically call it "the bottleneck". Even if you don't actually perceive it...
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slothmaster2001
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Re: please help me understand bottle necking
2017/03/02 08:44:27
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as long as the video card is the bottle neck I am happy. lol
X99 classified i7 5930k 2x Evga gtx 1080ti FE 32gb corsair dominator 2666 Corsair ax1200i Custom watercooling loop Lian Li pc-08
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HeavyHemi
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Re: please help me understand bottle necking
2017/03/02 16:50:48
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Bottleneck: Loosely defined as whatever subsystem is impacting performance the most for the current work load.
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Re: please help me understand bottle necking
2017/03/02 19:35:54
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HeavyHemi
Bottleneck: Loosely defined as whatever subsystem is impacting performance the most for the current work load.
+1
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ypsylon
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Re: please help me understand bottle necking
2017/03/07 22:25:00
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bdary
If you were to put those two 1080 Ti's on your X58 platform, then you'd see a bottleneck from the CPU (at stock clocks for sure) and possibly ram speed as well to some degree.
This one is highly debatable issue. If you talking 100% loaded GPUs like F@H or running Furmark - yeah that's somewhat doable. But for gaming I doubt it very much considering it's still 8 powerful threads and that even most modern video cards CAN'T saturate Gen.2 x8 slot while running games. It has been proved numerous times. Modern cards start to choke when you connect them to x4 slot (via riser), but with x16 Gen.2 even Titan XP SLI should be more than fine for gaming on X58. (understatement of the year LOL)
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GTXJackBauer
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Re: please help me understand bottle necking
2017/03/07 22:47:56
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bdary
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Re: please help me understand bottle necking
2017/03/08 07:12:45
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ypsylon
bdary
If you were to put those two 1080 Ti's on your X58 platform, then you'd see a bottleneck from the CPU (at stock clocks for sure) and possibly ram speed as well to some degree.
This one is highly debatable issue. If you talking 100% loaded GPUs like F@H or running Furmark - yeah that's somewhat doable. But for gaming I doubt it very much considering it's still 8 powerful threads and that even most modern video cards CAN'T saturate Gen.2 x8 slot while running games. It has been proved numerous times. Modern cards start to choke when you connect them to x4 slot (via riser), but with x16 Gen.2 even Titan XP SLI should be more than fine for gaming on X58. (understatement of the year LOL)
Every system has it's weakest link (bottleneck). What I was saying above is, in this case, I believe the CPU would be the bottleneck.
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somethingc00l
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Re: please help me understand bottle necking
2017/03/09 15:29:02
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It is not a static thing. You can be CPU bottlenecked in one game (or even game settings) and not another, same for GPU. For a well coded game, the CPU is what defines the maximum FPS you will ever get. Run the game at 800x600 resolution and the GPU will have very little work to do, so you CPU will be what is limiting the max FPS. Now raise the resolution to 4k and unless you have a monster GPU, the FPS will likely go down as the GPU is now limiting max FPS. For this reason I don't like how most people describe bottlenecking, as saying something is CPU bottlenecked isn't really technically correct, what they mean is the GPU is not limiting you at the current graphical settings. Or you could say the the CPU is always the bottleneck until the GPU becomes the bottleneck, but you'll always have a bottleneck by that definition. The CPU will always limit what your max FPS total can be, and you can further lower what the max FPS is by pushing the GPU to its limit (thus hitting a GPU bottleneck). If your CPU limit in a game is 100 FPS, no GPU you buy will get you more than 100 FPS, the GPU can only bring it down further. So spec your CPU for the max FPS you want, then spec your GPU to be near that max FPS with the resolution and graphical settings you want to achieve.
post edited by somethingc00l - 2017/03/09 15:31:49
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GTXJackBauer
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Re: please help me understand bottle necking
2017/03/09 17:06:10
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