CPU bottleneck problems

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uezra72

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Feb 14, 2014
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I've been having bottlenecking issues with my computer for some time now. Or at least other articles online have lead me to believe so. I have tried disabling cores and overclocking but that has only helped some games. In League of Legends my fps actually dropped 20 frames a while after overclocking. In portal my FPS skyrocketed. In Borderlands 2 my FPS will be 60 on max setting and about every minute or so will dip to 20. The same thing happens in Planetside 2, Call of Duty Ghosts, World of Tanks, and a few others that I cannot remember right now.

My system:
AMD fx6300 overclocked at 4.6 ghz with 2 of 5 cores disables
Nvidia geforce gtx 650
8 gb ram
Asrockn68c-gs fx

I've got a 400w psu, 5 fans and a water cooling system for my cpu so heat really isn't a problem.

Any suggestions would really help.
 
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RookieOfTheYear

RookieOfTheYear

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I'm not an expert but you PSU sounds a little weak. Especially with so many fans and a water cooling unit. Maybe your not getting all you could out of all the components because there isn't enough power to run them all to their full capabilities. Try 600 watts or higher.

I could also be wrong...and I'm sorry if I am.
 
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DukiNuki

DukiNuki

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Aug 21, 2011
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hey bro i think its your PSU . because 400w is way to low for such system . i think you need atleast 550watt or higher . go for 600watt to be safe & future proof .

& i have one way for you to determine if theres a bottleneck or not .

run GPU Z or GPU shark . open up your TASK MANAGER & go to performance tab & no matter how many cores you have make them all show in one graph . now run a game like battlefield or metro & max it out & play for a 5 min or more .

quit the game . if GPU usage has been 95-99% all the time & cpu was less than 70% then your not getting any bottleneck but if your CPU is reaching almost 90% or more then you are getting cpu bottleneck & the worse is ( when your cpu usage is already so high & your gpu cant go anything near 90% )

AMD cpus have always had this bottlenecking problem . amd 6 cores are not great for gaming . quad cores are . but when i upgraded my phenom 955BE to i5 3470 . difference was .... 12pm & 12am :D ...

 
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Vitric9

Vitric9

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I really could not say that The PSU is not getting enough power to the Components , The GTX 650 I think has a TDP of 75W and the FX 6300 about 125w So I bet if you just took don the voltage and the frequency just to be safe...Overclocking CPUs is best done with Very high quality PSUs...not that yours is bad, I don't even know what kind it is. Borderlands 2 is known for FPS dips. I get dips all the time in BL2. Planetside 2 is another game that in unpredictable because of Latency and So much happening So dips in that game is expected too. Your CPU might be throttling and that will shift the Framerate everytime.
 
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uezra72

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Feb 14, 2014
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Yeah after looking at others peoples' systems it did seem my psu was weak. I'll order a new psu, hopefully soon. Any recommendation brand-wise? Thanks for all the answers in such a short amount of time.
 
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paitjsu sadff

paitjsu sadff

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1st enable all the core on your cpu why would want to disable them i dont get it...2nd a gtx 650 is below low end entry level..dont expect to get to much out of such a weak gpu...your cpu is a lot more powerful than your gpu if you dont trust me on that check your gpu usage in afterburner im sure its always at 99%...if you want better performance in games get a good gpu like a gtx 760 for example and a good psu an enable your 6 core and overclock them..
 
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DukiNuki

DukiNuki

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ya because 400 watt is way to low for 6 core AMD cpu ( specially Overclocked ) . if you have enough money then i heavily suggest you to upgrade to Good Quality 600-650watt PSU to be safe for now & future upgrades. PSU is so important . its like mom in the kitchen . feeds everyone up :D so make sure all your hardwares get enough meal to eat to work properly . & for quality brands i heard CORSAIR or COOLER MASTER are good options

 
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paitjsu sadff

paitjsu sadff

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new PSU will make no miracle, the GPU is crap and it is the reason for bad framerates and frame drops are only because the OP is running out of VRAM...the CPU is plenty enough even for a GTX 770 or 780 in most games, there is no way it is bottlenecking a gtx650 wich is bellow low-end or entry level...this card was meant for light gaming even when it got released, nowadays it's really bad for playing modern games...
 
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DukiNuki

DukiNuki

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GPu is not that crap . but CPU is . getting a better GPU while having a CPU that will bottleneck it & a PSU that probably wont even run it ? come on

this guy has very VERY AHEFVJAEGVR WEAK PSU Wattage for any new upgrade .
he better get a new PSU first . then NEw INTEL CPU ( to get rid of any kind of bottleneck for Future UPGRADES ) & after that NEW GPU . that way he will atleast enjoy what he will pay for

& ya your right GPU is not being bottlenecked at all .



 
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DukiNuki

DukiNuki

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Look isnt it AMD 6core CPU ? have you seen the benchmarks between phenom 955 & that CPU ? have you seen that Quad Core phenom performs better than that crap ?

i had phenom 955BE . & it used to bottleneck my mid range 6870 . after i upgraded my cpu to i5 3470 i saw night & day difference . AMD cpus are not that enough for high end cards . by the way high end cards like gtx 770/780 require atleast 500-600 watt Powersupply . how can you expect 400watt PSU to handle overclocked power hungry 6Core AMD CPU + High END GTX card ?

 
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paitjsu sadff

paitjsu sadff

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everything you say is BD, i have made a lot of test on those CPU's myself and i can tell you that most reviews you see on the internet about them is full of crap, they perform so much better then what ppl think about these chips it's amazing and it frustrate me so much to see ppl bashing on such brilliant chip you have no idea...take my word for it but an FX-6300 CPU will not bottleneck any high-end GPU in any modern games excpet those that are built on old engines and uses only 1 or 2 threads...all the rest of the games the GPU will be fed to 99%...you just have no idea what you are talking about my friend.
 
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RookieOfTheYear

RookieOfTheYear

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@Dukinuki I don't know where you are getting your benchmarks from but according to the benchmarks comparison I found on this site it looks like the FX-6300 was better pretty much every single test over the Phenom II X4 955.

http://www.tomshardware.com/charts/cpu-charts-2013/compare,3143.html?prod%5B5946%5D=on&prod%5B5803%5D=on

And those tests were with the FX-6300 at stock 3.5Ghz. This gentleman has it overclocked to 4.6Ghz, so it would have even better scores.

I don't understand how you think it is a piece of crap. If someone doesn't want to drop $250 on a processor, the FX-6300 is a very nice budget CPU at only $120.
 
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paitjsu sadff

paitjsu sadff

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i agree, checking at TOTAL TIME for all the test is the best chart to see wich CPU is faster then another :
http://www.tomshardware.com/charts/cpu-charts-2013/-36-Total-Time,3179.html

some test are single threaded while other are mutlithreaded so the only way to know how does a CPU performs in real life is to mesure it's performance across a wide range of tests and cumulating the total time taken to process everything..

some high end phenom X6 does perform a little better then the FX-6300 but those CPU are priced much higher even in the used market, the FX-6300 performs equal to the core i7 930 bloomfield and quite a bit better then the core i7 920 and modern core i5 2310...not bad at all.
It also outperforms the FX-8120 zambezi wich was it's mission in the first place.
 
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DukiNuki

DukiNuki

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ok sorry im wrong about Performance difference between those 2 . i thought i saw a better ( gaming ) benchmark of Phenom once in anandtech.com

any way if he is going for higher VGA than that & if he wants to stay safe with that Overclocked CPU then he HAS to get better PSU . any one knows 400 watt is not enough for overclocked & high end stuff

yes thats overclocked cpu & yes it will eleminate the bottleneck with high end cards . but INTEL 3470 does that without any overclock . thats why i suggested new CPU too .
 
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uezra72

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Feb 14, 2014
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Thanks guys. And sorry for having such a god awful gpu paitjsu sadff... This was a budget build. I'm ordering a new psu Easter. Hopefully this summer I'll rake in enough cash for a new intel cpu and a good gpu. Then I'll be set. As for now, all my games have oddly enough gotten a crazy fps boost. My problems with fps drops have also ceased. Still, I really need a new psu. No doubt about it.
 
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uezra72

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Feb 14, 2014
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Also, yes my GPU usage is at 99% always. But it will sometimes dip for some reason along with cpu usage. That's what has led me to believe it is my cpu bottlenecking my gpu.
 
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paitjsu sadff

paitjsu sadff

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lol it's not that you have an awful gpu, it's just that it is a low end offering from nvidia that is BY FAR less powerful then what your CPU can achieve in games...the FX-6300 will not bottleneck such a weak gpu you will get bottlenecked only in very demanding games on ultra settings or badly optimised games that run's 1 heavy thread and it will bottleneck only high end gpu's like a GTX 770 or 780 for example...cards that are 4 or 5 times as powerfull as the one you have ATM...if i were you i would get a PSU along with a radeon r9 270x or GTX760 is you have the budget and go from there...that CPU you have is perfect for gaming and will run BF4 on ultra settings and many other games that are out ATM and even in the future...

 
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paitjsu sadff

paitjsu sadff

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probably, do you have proper cooling? also if you have good cooling on your CPU raise the voltage a little while staying in the safe limit and disable power saving feature on you CPU from the bios of your motherboard...also do you run windows 8? if you don't have a good CPU cooler order one with your PSU get the hyper 212 from cooler master it should cost you around 29$ US..this will keep everything cool and allow for great overclocking.
 
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