Will an AMD FX-6300 bottleneck a GTX 1080, and is it bad?

OldGoldie · Jun 13, 2017

I don't really have much money to get a new CPU & I recently won a GTX 1080 in a giveaway. I currently have an old 750 Ti I had in the past, of course it's a huge upgrade. But I'm just wondering if it will bottleneck, and if so, is it bad? Will i get worse performence/lag because of bottleneck? and if it does bottleneck could I "underclock" it?

I saw some other posts/videos. Some said it did bottleneck, others said it didnt. It's game dependent and I play some unoptimized games such as PUBG & ARK.

Tomhueb · Jun 13, 2017

Firstly congrats on the giveaway!, secondly yes that card definetly will bottlenek on that lower end AMD cpu. Consider buying an i5 or even an i3 to go with this beast or even sell the 1080 and buy an i5 and 1070 with that money which will give you a killer gaming pc.

maxalge · Jun 13, 2017

OldGoldie :

it just means you would never get the full performance of the 1080 because that processor is like a anchor hooked up to it weighting it down, the 6300 is obsolete

I strongly suggest you sell the 1080 and use the money to completely upgrade your pc

either a ryzen 5 1400 or pentium G4560 setup

13thmonkey · Jun 13, 2017

The performance will be what it will be, being bottlenecked will just mean you have untapped GPU potential, when you do upgrade your CPU/Mobo/RAM then that will be released, don't worry about bottlenecks just enjoy what you have.

Rexper · Jun 13, 2017

From the information you provided, there is no definitive answer. Please disregard those saying the CPU/ GPU will definitely bottleneck each other.

Read some of the comments under this forum: https://pcpartpicker.com/forums/topic/229793-double-checking-if-ill-bottleneck-before-i-purchase

13thmonkey · Jun 13, 2017

Rexper :

The FX6300 is an old CPU that was weak at release and is still weak by modern standards, the 1080 is a modern card, at the stop end of the stack. The FX6300 will bottleneck in any CPU bound game. The FX6300 will also bottleneck in any GPU bound game because the GPU is so strong .

However, there is always a bottleneck, period. Would anyone recommend purchasing an 1080 with an FX 6300, no, they would not have, as you'll be paying too much for a GPU that you can't utilise fully, but having being given one for free puts a whole different spin on it. Ignore the bottleneck and just play with it.

maxalge · Jun 13, 2017

Rexper :

wrong

there is a definite answer

that cpu bottlenecks that gpu

Rexper · Jun 13, 2017

13thmonkey :

You're assuming a lot here. Just because a CPU is relatively weak, and a GPU is relative strong, doesn't mean the CPU will bottleneck. You can't determine the whole decision based on the games, there a lot more to how a CPU and GPU performs than just the game. Please, read here: https://pcpartpicker.com/forums/topic/214851-on-cpugpu-bottlenecking-in-games as well as the page I linked before.

As I already said, there is no definitive answer like you have described. The GPU might actually be the bottleneck at 4K resolution, where the CPU is able to perform ~40 FPS in that specific game whereas the GPU only ~30 FPS with that resolution, game, and a set graphical settings.

I would not recommend a GTX 1080 with a 6300 simply because the 6300 isn't a good buy compared to price competitors. But as mentioned, there are some scenarios where the fx 6300 will do fine.

Rexper · Jun 13, 2017

maxalge :

... Did you even read that those links I mentioned? Or just stuck with your original falsely theory even though evidence provided suggests otherwise.

It depends on many variables, which are described in the link sent.

maxalge · Jun 13, 2017

Rexper :

nope

there are plenty of benchmarks that illustrate the 6300's shortcomings

don't be obtuse

there is a reason we usually say max gpu on that cpu is a 1050 ti

let me illustrate

the 6300 is capable of ~47 fps average in GTA5 with very high settings

the gtx 1080 is capable of ~105 fps in gta5 with very high settings

do you understand now?

There is no mystical BS at work, just cold hard numbers that anyone can find.

A very definitive answer....

Quit spreading misinformation

RobCrezz · Jun 13, 2017

Rexper :

13thmonkey :

You're assuming a lot here. Just because a CPU is relatively weak, and a GPU is relative strong, doesn't mean the CPU will bottleneck. You can't determine the whole decision based on the games, there a lot more to how a CPU and GPU performs than just the game. Please, read here: https://pcpartpicker.com/forums/topic/214851-on-cpugpu-bottlenecking-in-games as well as the page I linked before.

As I already said, there is no definitive answer like you have described. The GPU might actually be the bottleneck at 4K resolution, where the CPU is able to perform ~40 FPS in that specific game whereas the GPU only ~30 FPS with that resolution, game, and a set graphical settings.

I would not recommend a GTX 1080 with a 6300 simply because the 6300 isn't a good buy compared to price competitors. But as mentioned, there are some scenarios where the fx 6300 will do fine.

Sure it will work fine. But in most modern games, the 6300 will bottleneck the 1080.

Its not fantasy, its fact.

The link you posted even agrees with this.

Rexper · Jun 13, 2017

maxalge :

I don't believe you read my comments. You literally just proved my point, the 6300 performs ~ 47 FPS in GTA 5. The GTX 1080 is capable of ~ 105FPS in GTAV at very high quality at 1080p. Now what happens when we increase the resolution which might be a possibility to OP's scenario for all we know. At 4K, ultra settings the GTX 1080 likely performs around 40FPS, whereas the CPU is still capable of ~47 FPS.

Do you understand now?

Obviously this community isn't willing to accept the truth. I'm out for now.

RobCrezz · Jun 13, 2017

Rexper :

:lol:

Yes its entirely possible you can raise the resolution and graphical settings in some games to reduce the CPU bottleneck, or not have one at all.

However, its very unlikely the OP would be using settings/resolution like that, so its often better to give a simple and helpful answer/suggestion.

Its not rocket science how CPU/GPU bottlenecks work, but some common sense can help give an answer.

Rexper · Jun 13, 2017

RobCrezz :

Judging an answer based off an assumption isn't accurate/always correct.

I'll just leave it with a simple conclusion. If op wishes a quick, assumed, likely answer, the FX6300 will bottleneck. If op wishes for a more exact answer, read the response I provided.

The matter if bottlenecking is actually worth worrying about is another story.
Instead of worrying about bottlenecking, find if the CPU can perform up to your performance goal in the intended games. And if the GPU can perform up to the same performance goal in the same games at the desired resolution + graphics settings. If those are both checked, the system will perform fine whilst gaming.

maxalge · Jun 13, 2017

RobCrezz :

yup +1

XD

holy moley the mental gymnastics some people will go thru

maxalge · Jun 13, 2017

Rexper :

LOL

he had a 6300 with a 750 ti SON

do you REALLY think he has a 4k monitor????

Rexper · Jun 13, 2017

maxalge :

Of course not. But considering they just won a GTX 1080, they might decide they want to upgrade to a 4K monitor...

Also, that was just example for GTA 5, which op isn't even planning to play. Read their original description.

13thmonkey · Jun 13, 2017

OldGoldie, you were unfortunate enough to ask a question about bottlenecking, it's a very emotive subject as you can see, the upshot is it'll perform as well as it does, it won't harm anything, although the cooling on the CPU might get stressed as it'll be running at full pelt trying to keep up with the GPU.

In a small number of conditions it will not be a bottleneck, but you'd have to work to make these occur, 4k ultra etc. under any normal conditions, 1080p/1440p the CPU will constrain the card, it was free, it will do no harm, enjoy it.

Do not attempt to upgrade the CPU to a 'better' FX series, nothing in that series performs well, work your way to being able to go Ryzen or Intel.

maxalge · Jun 13, 2017

Rexper :

maxalge :

Of course not. But considering they just won a GTX 1080, they might decide they want to upgrade to a 4K monitor...

Also, that was just example for GTA 5, which op isn't even planning to play. Read their original description.

LOL those games are WORSE, very cpu bound

XD

dont get reckless now

kaiteck · Jun 13, 2017

tbh, if op was initially satisfied with gtx 750 ti, chances are gtx 1080 is incredibly overkill for his usage. I would probably just sell it away for profit.

if he's going to use gtx 1080 for 1080p gaming + fx6300 is a bit..
he may need to upgrade a lot of stuffs to utilise his gtx 1080.

Will an AMD FX-6300 bottleneck a GTX 1080, and is it bad?

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