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am i bottlenecking my cards

opstrat

opstrat

opstrat

Soldato
Joined
26 Aug 2010
Posts
3,515
Location
glasgow
hey.

2 msi 6850's oc editions on a crosshair formula 3 board with a phenom x4 b50 at 3.11ghz.

am i bottlenecking my cards with this.

im trying to number crunch wether to get an i5 and a new board or go for the cheaper option of an x6.
 
go with cheaper option tbh as what you seen in increase wouldnt be worth it.

90 quid second hand vs whole swop out for basically 10 fps which will cosy you 350 new
 
There is always a bottleneck somewhere. If the cpu is limiting the fps that much you can kind of balance it out by ramping up the gfx quality settings with no fps hit. So long as you are hitting 40fps in games I wouldn't really worry.
 
It's hard to say if you have bottleneck without knowing what games your playing. One unscientific way of checking would be to take one card out and see how much performance lose you get.
 
Freddie1980 said:
It's hard to say if you have bottleneck without knowing what games your playing. One unscientific way of checking would be to take one card out and see how much performance lose you get.
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Pretty sure a a Phenom II X4 at 3GHz ish will bottleneck CF6850 no matter what games, especially considering majority of the games don't use all 4 cores fully.
 
*facepalm*

Please do some research on FPS and how your eyes distinguish them.

Bottlenecking is, unless you are competing for benchmark work records, irrelevant in the grand scheme of things when you are gaming.

It isn't about a maximum FPS count, but the ability to ALWAYS remain over 30FPS which is where your eyes can start to tell the difference.

When a movie (or game) drops below 30 FPS it begins to flicker and stutter. Your eyes can then see this (as anything over 60 is not distinguishable) and you will get a headache and or eye strain.

So long as your system can provide you with a MINIMUM of 30 FPS (even during complex heavy graphical scenes) then it is acceptable.
 
ALXAndy said:
*facepalm*

Please do some research on FPS and how your eyes distinguish them.

Bottlenecking is, unless you are competing for benchmark work records, irrelevant in the grand scheme of things when you are gaming.

It isn't about a maximum FPS count, but the ability to ALWAYS remain over 30FPS which is where your eyes can start to tell the difference.

When a movie (or game) drops below 30 FPS it begins to flicker and stutter. Your eyes can then see this (as anything over 60 is not distinguishable) and you will get a headache and or eye strain.

So long as your system can provide you with a MINIMUM of 30 FPS (even during complex heavy graphical scenes) then it is acceptable.
Click to expand...
I hope you are joking. A constant 40-60fps is noticablely smoother than a constant 30fps...you'd have to be blind to not notice it.
 
Marine-RX179 said:
I hope you are joking. A constant 40-60fps is noticablely smoother than a constant 30fps...you'd have to be blind to not notice it.
Click to expand...

Did you read what I said?

Anything below 30 FPS is *immediately* detectable by the human eye. Stutter, flicker, whatever.

Anything UP TO 60 FPS and you can see the difference. Anything over 60 FPS? your name is Clark Kent.

30 FPS should be a MINIMUM. Swings between say, 45 FPS and 30 FPS so long as they are not constant will go undetected.

So let's say a slower CPU will bottleneck at 70 FPS (which is very low.. I will do some benchmarks on my core 2 with quad SLI later) that means that your cards can not possibly go any faster due to the CPU holding them back.

However, it doesn't mean your CPU is affecting the minimum FPS, because if the cards are obviously going at 70 FPS then the strain of maintaining 30 FPS then falls on them.

And no, 30 FPS isn't ideal, but anything lower is unacceptable.
 
ALXAndy said:
*facepalm*

Please do some research on FPS and how your eyes distinguish them.

Bottlenecking is, unless you are competing for benchmark work records, irrelevant in the grand scheme of things when you are gaming.

It isn't about a maximum FPS count, but the ability to ALWAYS remain over 30FPS which is where your eyes can start to tell the difference.

When a movie (or game) drops below 30 FPS it begins to flicker and stutter. Your eyes can then see this (as anything over 60 is not distinguishable) and you will get a headache and or eye strain.

So long as your system can provide you with a MINIMUM of 30 FPS (even during complex heavy graphical scenes) then it is acceptable.
Click to expand...

without getting into a debate about what "bottlenecking" means

i think all the op is trying to ask us is

is his cpu restricting performance from his crossfire gpu?
 
It's a myth that games are now GPU bound.

The problem is the shifting of data between the GPU and CPU.

I've found my setup is bottlenecked by my CPU at Eyeyfinity resolutions. I can see this in the CPU graph maxing out at these resolutions but if I drop down to a normal res then the issue stops - the GPUs aren't getting maxed.
 
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