i5 6600k bottlenecking gtx 1060

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Soarim

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i think my cpu is somehow bottlenecking my gpu, i tested it on the witcher 3, in novigrad the cpu usage is 100% while gpu usage goes down to 70%~80%, i tried ocing the cpu, no difference, the temps are normal, cpu goes maximum 65°c when its 100% usage, gpu goes up 75°c in full load, i tried turning the graphics the lowest i could, i got a boost of 5 fps in novigrad, 5 fps from the lowest graphics to ultra, makes no sense to me, in pubg when im in a moutain having a full vision of a big city, cpu usage gets higher and gpu usage gets lower, idk whats going on, tried getting the graphics on low, no difference in the fps

cpu: i5 6600k
gpu: gtx 1060 6gb
mobo: asus z170m plus
psu:tr2 700w thermaltake
ram: 8gb kingston ddr4 2400mh
 
Solution
jr9
Some games take advantage of dual channel mode. It depends on the game. Not having it is the only "flaw" I see in that system. If you are upgrading RAM, recommend purchasing either a 2x4GB or 2x8GB kit. Mixing and matching RAM is not recommended and can lead to system instability. This chance increases the more different the sticks are. Different capacities of RAM cannot be run in dual channel mode.

Besides that, the only other thing that would help is upgrading to a 7700k, overclocking, or both.
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jr9

jr9

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-An i5 6600k should not bottleneck a GTX 1060. The processor is not too slow for the card, it is just struggling to handle the massive workload involved in loading Novigrad.

- Witcher 3 Novigrad is incredibly CPU intensive and will cause slowdowns on even powerful systems. This city is extremely detailed and is known to cause slowdowns on many systems. Settings can be changed to mitigate this, such as number of actors and draw distance. This is expected behavior.

- You may see better performance upgrading to an i7 chip such as a 7700k. BIOS update would be necessary first.
 
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Soarim

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yeah, i know novigrad is heavy, but the fps drops happens in other games such as rise of the tomb raider, in several parts of the game, i capped it in 60 fps, it drops to low 40´s in some scenarios, gpu usage around 60%, cpu above 90% of usage, even in gta v, it drops bellow 60 fps no matter what graphics i put on, especially when im driving in the city, i did some stress tests on the cpu and gpu, all nomal, i really dont know whats going on, but something is no right

 
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jr9

jr9

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i5 processors are good for gaming but they still only have 4 cores and 4 threads. When you move up to Core i7 you'll see a noticeable FPS gain and fewer drops. It sounds like the 6600k is just slowing you down in certain areas with heavy workload. One thing you can do is use HWmonitor on another display and watch for instances where the GPU usage drops suddenly when the CPU usage is high. If you see that, I'd consider a processor upgrade to something like a 7700k.

If you have a spare SSD or HDD somewhere, one thing you can try is swapping it for your HDD and using a flash drive to install a fresh copy of Windows on it. After it's installed, get your graphics card drivers and some test games installed on it and see if you get better performance. Sometimes software issues or Windows issues can cause performance loss. This test would determine your peak performance with a brand new installation. It's a good thing to try before investing hundreds on a new part when the issue was something like a bad driver or malware taking up resources.
 
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Soarim

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i already monitor the gpu and cpu usage in game, like i said, the bottlenecking happens in cpu intensive parts of the games, like novigrad, like driving fast in the city in gta v, i have installed this whole system about a week ago, fresh windows, fresh hardware, already used ddu on the gpu driver and installed the driver again, no changes, updated the bios, nothing changed, the weird thing is that i oc´d the cpu and made no difference in the fps drops, idk if i have a faulty hardware, i doenst seem so, i tested all i could, all working fine, well, guess i dont have much to do left, but thanks for trying to help me
 
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jr9

jr9

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Faulty hardware is unlikely. The only thing left is to upgrade the processor if you get the same issue on a fresh install of Windows. I'd sell the 6600k and get a 7700k. You could also try bench marking to see if a particular part is under-performing.
 
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Soarim

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yeah, i did the benchmarking and its all good, ill go with the fresh windows again and see what happens, thanks
 
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Soarim

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hey, me again, i installed windows again, reinstalled gpu driver, updated the mobo bios, ran some benchmarks, still getting bottlenecked by the cpu, but it makes no sense cause i monitored it while playing, the clock is consistent, always on max core frequency on game, but gpu usage still going down, tried playing bf 1, conquest mode, i was getting 40~60 fps in any graphics setting, unplayable, very unstable, do you have any other ideia of what might be going on? benchmarked the gpu, all good, the cpu, all good, ram, all good, hd, all good, and still getting shitty performance on games, i dont know what else to do, cant really afford to buy another cpu now, could it be the mobo? i really dont know what else i can do
 
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jr9

jr9

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- Even with a 6600k you should be seeing more like 80FPS unless you are running 1440p or higher.

- Was Userbenchmark one of the benchmarks you did? Its handy for finding part issues without swapping parts out of the PC. You can even post links to your results.

- I've never seen a motherboard cause bad FPS. Bad motherboards generally yield issues such as system instability or the system being completely inoperable. If the motherboard is being blamed for bad FPS it's because the boards PCIe slots were damaged or Windows wasn't reinstalled when the board was swapped for another.

 
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Soarim

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http://www.userbenchmark.com/UserRun/6830775

i did a lot of benchmarks the past week, all the results are the same or very close, i play in 1080p, linked it so you can see it
 
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gtr22

gtr22

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I have a i5 6600k oc to 4.5ghz with RX 580 4gb. I noticed after the latest patch my cpu usage went from 58% to 80% during games. Getting the same good fps, now the gpu will get slight bottleneck on PUBG. GTA 5 I increased my graphics and the gpu got bottlenecked, maybe because I used too much vram. I think some of these problems are from the latest patches. If you can do a rollback to see.
 
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Soarim

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what patches are you talking about?
 
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jr9

jr9

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It would be a Windows update patch to be more specific. You could uninstall if (if this is possible) or system restore to a couple months ago before the patches like KB4056892. It wouldn't hurt to try. Perhaps as soon as you installed you let Windows update run and it picked up the meltdown+spectre patches right off the bat.

 
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Soarim

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yeah, nothing changed, im think im done with it, all hardware seems ok, could be a software issue but i really dont know what else to do, the bottlenecking is still the same
 
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jr9

jr9

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Battlefield users on their forums report the game runs a lot better with a dual channel RAM kit, preferably 2x8GB. It's the only glaring thing I noticed when I looked at that benchmark. All the other hardware checks out. If that machine has an SSD and gets low FPS issues in other games all I can think of is the the single channel, lower end RAM stick holding you back... or one of your parts is defective although usually defective hardware shows other symptoms.
 
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Soarim

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hey, i´ve been in a journey to find out what´s wrong, and after reading many forums i came to the conclusion that it may be the one stick ram holding my system back, some guy said this

"The other factor is some people are only running one stick of ram, newer cards like the gtx 1060 will hit a memory bandwidth bottleneck when running only 1 stick, they need the increased bandwidth of dual channel."

do you have any input on this statement? im getting a new stick of ram soon, and other question, do i have to buy another 8gb ram or can it be a 4gb? i have a 8gb stick.
 
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jr9

jr9

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Dec 6, 2017
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Some games take advantage of dual channel mode. It depends on the game. Not having it is the only "flaw" I see in that system. If you are upgrading RAM, recommend purchasing either a 2x4GB or 2x8GB kit. Mixing and matching RAM is not recommended and can lead to system instability. This chance increases the more different the sticks are. Different capacities of RAM cannot be run in dual channel mode.

Besides that, the only other thing that would help is upgrading to a 7700k, overclocking, or both.
 
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Solution
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vexicus

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Dec 22, 2016
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Do one thing....up ur gaming settings.....if u r playing at 1080p, most of the load is taken by the CPU.....try increasing it to 1440p....nd u'll surely notice the difference....
Same happened with me.....I thought that my 980ti SLI was bottlenecking my 4790k.....but it turns out....at 1440p I get much better frame rates
 
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jr9

jr9

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You can be bottlenecked by your display resolution but that is only the case if you have low GPU usage. Resolution changes are completely GPU dependent and have nothing to do with the CPU or high CPU usage.

If you have a 1080p display you cannot change to 1440p without purchasing a new display.
 
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Soarim

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i play in 1080p, how do i know im getting display bottleneck? i do have low gpu usage in some parts of the games, thats when i get bottlenecked, i tried dsr in nvidia control panel, it kinda works, the gpu stays at 99% usage in places where it gets bottlenecked when im at 1080p, but i have a gtx 1060, so, not really good fps at 1440p
 
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Soarim

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oh, ok, so im gonna try the ram upgrade, if it works i´ll let you know, if not, will have to go with the i7 7700k, thanks for the answers.
 
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Soarim

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hey, im about to get another ram stick, its the same than the one i already have installed, same latency, frequency, 8gb, ddr4, brand, so, is there a chance that the mobo will not recognize the dual channel?
 
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jr9

jr9

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Dec 6, 2017
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If the brand and all the timings numbers match exactly then your chances are good although if the RAM isn't purchased in a kit there are never 100% guarantees.
 
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