Bad FPS Problems With Nvidia GTX 570, Could Be CPU?

[Kestryn]

Well will switch it and see what happens

 

[Orcvader]

Just wondering where you found out that the card only runs in X4 mode Orcvader, as I can't seem to find it on the manual.

**edit**

Oooooh usernames are now auto hyperlinked

His card is in the PCI-E x16 2 slot. This slot runs at x4.

Page ix of the manual:

 

[Martini1991]

? No but for a lower end card such as a 570 it would need the x16 lane to keep above 30fps and a x4 570 would bottle it very low as far as I know.
I expect trying it in the X16 lane and seeing what performance gains come from that is the best step to take first, I'm sure it would give a good improvement

Why would the 570 bottleneck more than a 6990? The 6990 requires more bandwidth.

 

[Freddie589]

Chop!

Ah I get it now, cheers

 

[Orcvader]

Wouldn't explain the frame rate.
A 4x doesn't bottleneck a 6990 to give less than 20 FPS in ARMA lol.

Although the lane may be giving another problem, but bandwidth would certainly be fine.

Fair point, but it would still give him a slight improvement.

 

[Freddie589]

Why would the 570 bottleneck more than a 6990? The 6990 requires more bandwidth.

I expected half of this problem is also his CPU, x4 lane + a CPU that could possibly bottleneck it would equal is stupidly low framerates?

 

[Martini1991]

Fair point, but it would still give him a slight improvement.

It could correct his problem, but if it does, it's certainly not bandwidth problem.

 

[Martini1991]

I expected half of this problem is also his CPU, x4 lane + a CPU that could possibly bottleneck it would equal is stupidly low framerates?

Wouldn't work like that.
The CPU bottlenecks to how much maximum it can push out/feed.
But with the 4x it can only be fed so much anyway.

But look ;
http://www.techpowerup.com/reviews/NVIDIA/GTX_480_PCI-Express_Scaling/1.html

480 is around the same performance.

 

[Freddie589]

Wouldn't work like that.
The CPU bottlenecks to how much maximum it can push out/feed.
But with the 4x it can only be fed so much anyway.

But look ;
http://www.techpowerup.com/reviews/NVIDIA/GTX_480_PCI-Express_Scaling/1.html

480 is around the same performance.

Good point, will be intresting to see the resualts of putting it in a 16x.

 

[Kestryn]

Is that 0% GPU usage in-game?

What, 5-10 fps? I'm not sure if it's using GPU or CPU. If that's what you meant

 

[Kestryn]

Ok, put it in the top slot, uninstalled and re downloaded the drivers, (301.42) fired up ARMA2, and still getting 10fps on stand still, and dropping below 5 when moving around (changed graphics from ultra to high didn't make a difference), this must be a CPU bottleneck problem then?

 

[Sin_Chase]

Install MSI Afterburner and Enable the On-Screen display.

Get a screen dump of the game with the overlay reporting VRAM Usage, Core % utilisation etc.

Let's work out for sure what GPU you are using while playing the game.

 

[Kestryn]

I did alt tab out of ARMA2 whilst playing, and the GPU usage did go up like normal, but will grab you a screenshot now.

 

[Kestryn]

This was around 3seconds after playing ARMA2, I could not find the option to enable usage overlay, only temps. But this shows that it is in fact using the card.

 

[Martini1991]

GPU usage is pretty pants.
I'll post a GPU usage chart of mine

 

[Kestryn]

It keeps on jumping around between 20-70

 

[Martini1991]

This was me just rendering the menu of Dawn Of War 2, this is what no CPU bottleneck looks like (Ignore that glitchy 126% like lol)

It's just pretty consistent.

 

[Orcvader]

Can you run Task Manager as well in the background to check what CPU usage is like?

 

[Kestryn]

This is with CPU and GPU monitoring

 

[Martini1991]

Looks like a CPU bottleneck tbh.
100% usage is a sham given it'd be all 4 cores going full whack, you're never going to get that in the majority of games, yet there could be a CPU bottleneck.