can a cpu get bottlenecked?

[DogeLife]

Can a cpu get bottlenecked by a cpu? my friend has a gtx 645 and a i7 4770, and I was wondering if it could be a bottleneck.

[vlkn´]

you mean, if a cpu can get bottlenecked by a gpu, right?

Of course it can, expecially by the gtx 645

[i_build_nanosuits]

Can a cpu get bottlenecked by a cpu? my friend has a gtx 645 and a i7 4770, and I was wondering if it could be a bottleneck.

haha yas of course your question is not typed in correctly but in a way yeah sure his GPU has WAY WAY WAY less performance than his CPU has...just like my i7-4770K is way more powerful at running modern games than my GTX780 can output frames so in a way yes my CPU is ''bottlenecked'' by my GPU but there will always be a bottleneck in a system and you want it to be the GPU and not the other way around.

[UltraNeonGaming]

A GPU can't slow down how fast a CPU can calculate numbers.

[WoodenMarker]

Easily.

And yes, it will be in gaming. Not all games, but most depending on the settings and resolution

you mean, if a cpu can get bottlenecked by a gpu, right?

Of course it can, expecially by the gtx 645

Uh.. no.

A GPU can't slow down how fast a CPU can calculate numbers.

^

The cpu can be bottlenecked in other applications though. An example would be where the storage drive can't keep up with the cpu when rendering.

[UltraNeonGaming]

The cpu can be bottlenecked in other applications though. An example would be where the storage drive can't keep up with the cpu when rendering.

Yeah, like in games the CPU is crunching out numbers faster than the GPU is outputting them, but purely if talking can a GPU slow down a CPU? Nope.

[i_build_nanosuits]

Uh.. no.

^

The cpu can be bottlenecked in other applications though. An example would be where the storage drive can't keep up with the cpu when rendering.

 

Yeah, like in games the CPU is crunching out numbers faster than the GPU is outputting them, but purely if talking can a GPU slow down a CPU? Nope.

oh i see, yes...it depends how you interpret the question...i didnt understant it that way.

What is considered to be the ''bottleneck'' is the part that prevent the machine to output more frames on the screen and if you look at it this way then yes the CPU is ''bottlenecked'' by such a slow GPU...and as i said there will always be a bottleneck when it comes to rendering video games wheter it's the CPU or the GPU there will always be a limiting factor...

[vlkn´]

man this got me confused, I mean the gpu will be a bottleneck for this type of processor or am I wrong

[i_build_nanosuits]

man this got me confused, I mean the gpu will be a bottleneck for this type of processor or am I wrong

if we admit for example that an i7-4770 could potentialy output say 200FPS in a game...then yes if you do not have a GPU configuration that can deliver more than those 200FPS then yes the CPU is ''bottlenecked'' but it's stupid to think that way because you do want to have sufficient CPU horsepower to drive your GPU's @100% all the time in every games.

[vlkn´]

if we admit for example that an i7-4770 could potentialy output say 200FPS in a game...then yes if you do not have a GPU configuration that can deliver more than those 200FPS then yes the CPU is ''bottlenecked'' but it's stupid to think that way because you do want to have sufficient CPU horsepower to drive your GPU's @100% all the time in every games.

thanks

[WoodenMarker]

oh i see, yes...it depends how you interpret the question...i didnt understant it that way.

What is considered to be the ''bottleneck'' is the part that prevent the machine to output more frames on the screen and if you look at it this way then yes the CPU is ''bottlenecked'' by such a slow GPU...and as i said there will always be a bottleneck when it comes to rendering video games wheter it's the CPU or the GPU there will always be a limiting factor...

There will always be a bottleneck one way or another but the cpu wouldn't be bottlenecked by the gpu in gaming. 

man this got me confused, I mean the gpu will be a bottleneck for this type of processor or am I wrong

The gpu can't really bottleneck the cpu in gaming. 

Bottlenecking is when a component can't perform optimally because of other components holding it back. 

if we admit for example that an i7-4770 could potentialy output say 200FPS in a game...then yes if you do not have a GPU configuration that can deliver more than those 200FPS then yes the CPU is ''bottlenecked'' but it's stupid to think that way because you do want to have sufficient CPU horsepower to drive your GPU's @100% all the time in every games.

The cpu isn't bottldnecked in that case because the 4770 doesn't produce the frames and can still perform at 100%. Performance as a whole is always being held back by something but the cpu isn't being bottlenecked.

[i_build_nanosuits]

The cpu isn't bottldnecked in that case because the 4770 doesn't produce the frames and can still perform at 100%. Performance as a whole is always being held back by something but the cpu isn't being bottlenecked.

no i understand hardware bottleneck as you describe it, i can totaly comprehend that the GPU does not affect the work of the processor but the result is still the CPU being ''held back'' by the GPU in terms of how many frames are displayed on the screen.

[vlkn´]

There will always be a bottleneck one way or another but the cpu wouldn't be bottlenecked by the gpu in gaming. 

The gpu can't really bottleneck the cpu in gaming. 

Bottlenecking is when a component can't perform optimally because of other components holding it back. 

The cpu isn't bottldnecked in that case because the 4770 doesn't produce the frames and can still perform at 100%. Performance as a whole is always being held back by something but the cpu isn't being bottlenecked.

Yeah I did understand it wrong, I meant that the cpu is not fully utilized with a low end card.

[WoodenMarker]

no i understand hardware bottleneck as you describe it, i can totaly comprehend that the GPU does not affect the work of the processor but the result is still the CPU being ''held back'' by the GPU in terms of how many frames are displayed on the screen.

The gpu is being held back by the cpu and not the other way around when bottlenecked in gaming.

Yeah I did understand it wrong, I meant that the cpu is not fully utilized with a low end card.

The graphics card doesn't affect how much the cpu is utilized in gaming outside of 'other forms of bottlenecking' like physx. 

[vlkn´]

ok confused again.

WoodenMarker uses confusion.

vlkn´ is confused, the attack is critical

[i_build_nanosuits]

ok confused again.

WoodenMarker uses confusion.

vlkn´ is confused, the attack is critical

i do understand what you mean and i know he does to...

The gpu is being held back by the cpu and not the other way around when bottlenecked in gaming.

The graphics card doesn't affect how much the cpu is utilized in gaming outside of 'other forms of bottlenecking' like physx. 

[vlkn´]

The gpu is being held back by the cpu and not the other way around when bottlenecked in gaming.

The graphics card doesn't affect how much the cpu is utilized in gaming outside of 'other forms of bottlenecking' like physx. 

41% cpu usage gtx 660

 

32% cpu usage 7850

 

same resolution/settings different gpu, do I just don´t get it? or what

[WoodenMarker]

41% cpu usage gtx 660

-snip-

32% cpu usage 7850

-snip-

same resolution/settings different gpu, do I just don´t get it? or what

Those are 2 different benchmarks at different settings. The 7850 also performs a bit better than the 660 so the correlation would be a bit backwards if anything.

Most in-game-benchmarks are more centered on stressing the graphics card than the cpu as well.

[i_build_nanosuits]

41% cpu usage gtx 660

32% cpu usage 7850

 

 

same resolution/settings different gpu, do I just don´t get it? or what

no this is a coincidence the CPU load should be the same...pretty much.

that's the point woodenmaker is trying to make and i do understand..he is right.

BUT it is also correct to consider the end result and to realise that ''performance wise'' the CPU is being ''held back'' by the GPU IMHO.

[vlkn´]

Those are 2 different benchmarks at different settings. The 7850 also performs a bit better than the 660 so the correlation would be a bit backwards if anything.

Most in-game-benchmarks are more centered on stressing the graphics card than the cpu as well.

the 660 performs better, from what i´ve seen.

2. The settings are shown at the end, both are 1080p

3. Same benchmark

 

so much confusion >.<

 

[i_build_nanosuits]

the 660 performs better, from what i´ve seen.

2. The settings are shown at the end, both are 1080p

3. Same benchmark

 

so much confusion >.<

just keep in mind that the GPU is NOT affecting the load of the CPU...the CPU task is to process the instructions for the game to run and it will do the same work wheter you have a super low end card or a very high end SLI setup.

[WoodenMarker]

no this is a coincidence the CPU load should be the same...pretty much.

that's the point woodenmaker is trying to make and i do understand..he is right.

BUT it is also correct to consider the end result and to realise that ''performance wise'' the CPU is being ''held back'' by the GPU IMHO.

I'd rather just call it what it is and say that a worse graphics card will perform worse than a better one.

the 660 performs better, from what i´ve seen.

2. The settings are shown at the end, both are 1080p

3. Same benchmark

so much confusion >.<

-snip-

That video is pretty old. The 7850 performs better due to the driver updates and it oc'ing better. 

[vlkn´]

just keep in mind that the GPU is NOT affecting the load of the CPU...the CPU task is to process the instructions for the game to run and it will do the same work wheter you have a super low end card or a very high end SLI setup.

But isn´t it that if the gpu can render faster, the cpu can also render faster and is not stopped?

[i_build_nanosuits]

But isn´t it that if the gpu can render faster, the cpu can also render faster and is not stopped?

no it's not how it works...the CPU will still have the same workload to process...some in game settings such as physics rendering for example can have an effect on the CPU load but the performance of the GPU is not something that the CPU ''care about''...in simplified terms the CPU run the game and push the informations to the GPU department which is in charge of outputting the frames to the screen.

[vlkn´]

no it's not how it works...the CPU will still have the same workload to process...some in game settings such as physics rendering for example can have an effect on the CPU load but the performance of the GPU is not something that the CPU ''care about''...in simplified terms the CPU run the game and push the informations to the GPU department which is in charge of outputting the frames to the screen.

Ok thanks