TEST Do you know how "Bottleneck" works?

[Exaco]

Hello guys, while experimenting i did some mini test for you.

Try to guess how much fps there would be where is questionmarks. 
 

[Sauron]

38 - 32

[Lathlaer]

16 minutes ago, Sauron said:

38 - 32

Yeah, I agree. Metro will still be bottlenecked but not by 50% because of the resolution factor and For Honor will be within margin of error since it doesn't appear to be CPU bound at all. 

 

Though having hard time believing that i5 2320 had better result in 1080p than 7700k - literally 0 reasons for that.

[Sauron]

20 minutes ago, Lathlaer said:

Though having hard time believing that i5 2320 had better result in 1080p than 7700k - literally 0 reasons for that.

Margin of error, every benchmark will have slightly different results - 1 fps out of over 100 is meaningless.

[Lathlaer]

1 minute ago, Sauron said:

Margin of error, every benchmark will have slightly different results - 1 fps out of over 100 is meaningless.

Yeah I know but the few tests I've seen of For Honor indicate that while yes, it's very friendly towards CPU's it's not THAT independent of them. I expected at least few FPS in favor of i7 7700k.

[emosun]

i'm guessing the answer will be a humble brag thus making the point of this thread moot

[Exaco]

11 minutes ago, Lathlaer said:

Yeah I know but the few tests I've seen of For Honor indicate that while yes, it's very friendly towards CPU's it's not THAT independent of them. I expected at least few FPS in favor of i7 7700k.

My GPU is slightly overclocked, thats against reference 980Ti. 

Here's the results: 



For metro the resulotion isn't exactly 4K, its just very close version of it ( had no option to choose real 4K )
4K -  8294400 pixels
4434x1871 - 8296014 pixels

[Lathlaer]

7 minutes ago, Exaco said:

My GPU is slightly overclocked, thats against reference 980Ti. 

So the i5 2320 platform is yours and the above are taken from outside benchmarks? 

 

If so, then answering in the vacuum given only the numbers I still stand by what Sauron said. But I accept that the methodology may weigh heavily on the end results. Different testing place, the fact that one is overclocked and the other one isn't, different RAM etc.

[Sauron]

13 minutes ago, Lathlaer said:

Yeah I know but the few tests I've seen of For Honor indicate that while yes, it's very friendly towards CPU's it's not THAT independent of them. I expected at least few FPS in favor of i7 7700k.

I suppose that goes to show how overestimated cpus tend to be when it comes to games. Don't get me wrong, in some games they make a big difference - but in may others they just don't matter at all. Once you hit that gpu cap it doesn't matter if you have an 8700k at 7GHz, you won't be squeezing a single extra fps out of it. Besides, the 2320 isn't that bad of a cpu to be completely honest, quad core sandy at 3.3GHz boost is still more than usable.

 

-edit-

also an overclock on the gpu might help explain it, although if the cpu was bottlenecking we still should see a loss.

 

@Exaco mind PMing me the answer? I'm curious to know if I was right or how far off I went.

[Exaco]

18 minutes ago, Lathlaer said:

So the i5 2320 platform is yours and the above are taken from outside benchmarks? 

 

If so, then answering in the vacuum given only the numbers I still stand by what Sauron said. But I accept that the methodology may weigh heavily on the end results. Different testing place, the fact that one is overclocked and the other one isn't, different RAM etc.

Ye, there's margin of error and there always will be even on same rig, but since mostly cpu/gpu is responsible for the performance there's no  problem. i've taken benchamrks from popular youtubers such as Bitwit and the 2320 is mine.  + my rest parts aren't even good, im using H61 motherboard w/ 1333mhz 2x8GB ram. 

What i've realized by doing tests is that CPU has like invisible fps so to speak.
Lets say a game is like speedway then CPU is like speedway's speed limit and GPU is like your vehicle, no one knows if you can even reach that limit, but if you can, you wont go further than that but once the resolution increases your vehicle gets alot more of weight so it gets harder for it to drive fast  In short: CPU is responsible only for physics, collisions, geometry etc.

[Cryptonite]

6 minutes ago, Sauron said:

I suppose that goes to show how overestimated cpus tend to be when it comes to games. Don't get me wrong, in some games they make a big difference - but in may others they just don't matter at all. Once you hit that gpu cap it doesn't matter if you have an 8700k at 7GHz, you won't be squeezing a single extra fps out of it. Besides, the 2320 isn't that bad of a cpu to be completely honest, quad core sandy at 3.3GHz boost is still more than usable.

 

-edit-

also an overclock on the gpu might help explain it, although if the cpu was bottlenecking we still should see a loss.

 

@Exaco mind PMing me the answer? I'm curious to know if I was right or how far off I went.

you were out by 1 fps on each. 39 and 33 vs your estimated 38 and 32

[Sauron]

5 minutes ago, Cryptonite said:

you were out by 1 fps on each. 39 and 33 vs your estimated 38 and 32

Oh right, I didn't see the posted answer lol

[Lathlaer]

12 minutes ago, Sauron said:

Besides, the 2320 isn't that bad of a cpu to be completely honest, quad core sandy at 3.3GHz boost is still more than usable.

https://www.techspot.com/review/1333-for-honor-benchmarks/page3.html

 

There's still a difference between something like i5 2500k and i7 7700k which is why I expressed my doubts about the methodology.

[Sauron]

2 minutes ago, Lathlaer said:

https://www.techspot.com/review/1333-for-honor-benchmarks/page3.html

 

There's still a difference between something like i5 2500k and i7 7700k which is why I expressed my doubts about the methodology.

Yes but that is with a titan xp and over 140 fps, where it's much more likely that a cpu bottleneck will come into play.

[Lathlaer]

6 minutes ago, Sauron said:

Yes but that is with a titan xp and over 140 fps, where it's much more likely that a cpu bottleneck will come into play.

Shoot, you're right thats a Titan Xp there ;-)