Can high-end GPU choke low-end CPU?

[biostud]

The stuttering caused by the Processor having 100% CPU usage spikes may not even be related to the game, it could be a background task. That's why it makes the game stuttering when that happens.

Another reason to have 4t as minimum in a modern gaming computer.

 

[Gonad the Barbarian]

But what about just changing resolutions, with all the features the same? How does that affect the CPU?

Generally it doesn't.

 

[tenpole]

I have yet to buy a graphics card for my g32t8 set up. I was thinking of just getting a 750ti or lower for cost but it looks like it is the best option for the cpu as anything higher would be wasted.

 

[amenx]

There was someone here who bought a FuryX for his Q9450 and was pretty happy with the result:

http://forums.anandtech.com/showpost.php?p=37595158&postcount=74

 

[therealnickdanger]

There was someone here who bought a FuryX for his Q9450 and was pretty happy with the result:

http://forums.anandtech.com/showpost.php?p=37595158&postcount=74

I really like that he did that. The most important thing is that he's happy with the result. Ultimately that's all that really matters - are YOU happy with how you spent YOUR money? Now when he finally upgrades the rest of his system with much faster CPU, he's going to be even happier...

 

[TheELF]

No,having 100% cpu spikes is not causing any fps drops,not even on a celeron,not even with other stuff running in the background.
99% of the times fps drops are due to textures being read into the gpu causing the gpu to stall until its done reading,the higher the texture sizes in mb(or is it gb by now) the more problems you will have. Hopefully Dx12 will fix that.
Lowering texture quality will surely help.

mordor on g1820
https://www.youtube.com/watch?v=FXnSuyEIVbM

Another thing that messes up games is the priority they are running at,often games come with priority set on high lowering priority to normal or low makes the game, and the whole system, run much smoother.

 

[TheELF]

Is there any evidence/testing that isolates the notion that changing the graphics load can affect CPU burden?

Theoretically it makes sense that when you disable a "graphics" feature affecting the CPU, then the CPU will need to do less, easing the CPU burden slightly. But what about just changing resolutions, with all the features the same? How does that affect the CPU?

As yuriman already said

when targeting the same framerate, CPU load is generally the same

and anyone can test this easily by just limiting a game to 30fps (one that you can easily play at much higher fps) and then changing settings.
Like in the video, 30fps always needs ~60% on this cpu no matter what you change.
https://www.youtube.com/watch?v=VkH6hXnhPNM

 

[tweakboy]

Simply put,, YES