Incredibly low FPS, on any graphics setting

[Demoman Dawkins]

Hi.

I guess this is the best place to post my problem, as I'm having no luck anywhere else. Basically, No matter what settings I have Killing Floor set to, as soon as about 3 or more enemies come on screen, my FPS plummets through the floor to about 20 or less. It gets really unplayable as the game progresses.

It's not as if my computer's bad by any means. I should be able to max it easily.

My specs are:

AMD Phenom II x4 955 @3.2ghz
2GB DDR3 ram
HD5750 1GB

I thought at first that my CPU might've been overheating or something, but I checked the temps and they're pretty low, along with all my other hardware, so I have no idea what's going on. All my drivers are up to date too.

Currently, I have the game set to 1440x900, all max with no AA. Tried it on 800x600, all lowest, and the fps stayed the same. It never goes up past about 86, even when looking at the floor.

What should I do?

 

[Demoman Dawkins]

Seriously... Nobody?

 

[Discoisntdead]

It really sounds like a cpu bottleneck. But your Phenom is pretty damn decent for any kind of gaming, so I don't know what your problem could be...
You using the latest Ati drivers?

 

[omarfw]

your computer is only as fast as your slowest part. give us a full specs listing if you can.

http://www.malwarebytes.org/

http://www.piriform.com/ccleaner

http://www.eusing.com/free_registry_cleaner/registry_cleaner.htm

http://www.piriform.com/defraggler

some free software for you to do some comp maintenance.

http://technet.microsoft.com/en-us/sysinternals/bb896653.aspx

also run this and see if any processes are eating up your memory and leaving too little for kf to run smoothly

 

[Demoman Dawkins]

Ah, I found the major cause of the problem. Cool 'n' Quiet didn't revert everything back when I opened the game, so it was running at 800mhz. No idea why. Runs better now, but I'm still dropping down to the low 30s every now and again.

 

[Demoman Dawkins]

Sorry to bump again, but I'm still having similar problems. I can't seem to fix it. Changing the settings does nothing, and even on the lowest, even though the fps is at 91 when zombies start spawning, when I look at them or shoot them sometimes my fps drops down a lot. It varies when it does it.

Yesterday I was playing on Biotics lab and looking at a door dropped my fps down to below 30. There was one zombie on the other side. WTF?

 

[anthracy]

Load up speccy: http://www.piriform.com/speccy

Under graphics, tell us if the card is running at 1x or 16x ........

Bus Interface PCI Express x16 <------what you should see
Bus Interface PCI Express x1 <------ what you don't want to see

 

[Zetsumei]

Have you tried these things yet? http://forums.tripwireinteractive.com/showthread.php?t=37887
especially the defragmentation and turning off "reduce mouselag" can help you.

Try forcing AA through the ati control panel instead of ingame (make sure you dont force it in both at the same time), and check whether you use super sample anti aliasing.

 

[Demoman Dawkins]

Load up speccy: http://www.piriform.com/speccy[url]http://www.piriform.com/speccy[/URL]

Under graphics, tell us if the card is running at 1x or 16x ........

Bus Interface PCI Express x16 <------what you should see
Bus Interface PCI Express x1 <------ what you don't want to see

Can't see bus interface anywhere.

 

[nath2009uk]

Have you tried going back to an older version of drivers? That could fix it.

Another thing may be your PSU, you didn't list that. I've seen people ask why they get such low fps with specs like your's then reveal they only have a 350W PSU.

 

[anthracy]

Can't see bus interface anywhere.

If you actually click on the Graphics button on the left it will bring up a ton of info on the card like this:

 

[Dr.Nick]

Hmm I'm getting the same problem as the original poster. I think that it must have something to do with the video card because I have an ATI 5770 which is very similar. Not only that but I ran the game fine before on my old nvidia 9800 but now that I've switched cards it can't run on any settings without immense frame rate lag.

So now the question is, why is the video card causing this problem and how do we fix it?

 

[Dr.Nick]

I also ran Speccy and under the graphics tab for my video card I only have

Memory
Memory Type
Driver

so that's also odd.

 

[Demoman Dawkins]

Sorry for not replying. Didn't realise anyone had posted. Anyway, I have a 600w PSU. As for the Bus interface thing. Clicking on graphics on the left doesn't bring all that info up. There's nothing about that being shown at all. The fps drops seem to be specific to the projectors setting. With it off, the game's fine, but I don't see why.

 

[Dr.Nick]

I guess I'll post up my specs as well

AMD Athlon II X3 440 Rana 3.0GHz 3 x 512KB L2 Cache Socket AM3 95W Triple-Core
8 gigs of OCZ 240-Pin DDR3 SDRAM DDR3 1600 (PC3 12800) XMP-Ready Rev.2 Desktop Memory Model OCZ3X1600R2LV4GK
XION PowerReal AXP-850R14N 850W ATX 12V v2.2 / EPS 12V v2.91 SLI Ready CrossFire Ready Power Supply
GIGABYTE GA-MA790XT-UD4P AM3 DDR3 AMD 790X ATX AMD Motherboard
XFX HD-577A-ZNDC Radeon HD 5770 XXX Edition 1GB 128-bit DDR5 PCI Express 2.0 x16 HDCP Ready CrossFireX Support Video Card

So yeah. I really shouldn't be having any problems running this game. But like I said I only started getting these problems when I got the new video card. Before that it ran perfectly. So something with the 5770 must be bottlenecking.

 

[Zetsumei]

make sure you cleaned your old drivers correctly before installing that new vidcard you can try using the 3dguru drivercleaner program and reinstall the drivers.

Next to that make sure everything is properly defragmented. Try to use your catalyst control panel anti aliasing rather than the ingame AA setting. That helps with performance for some people.

Try messing around with your control panel aliasing settings as well. Those cards run the game great if everything is clean .

 

[Demoman Dawkins]

I have NO old drivers. This is the first set of drivers I've installed on this OS. When I was on XP, I had multiple sets and they all had the exact same problem with this game. I deleted the old ones properly too.

 

[Morello]

Check your graphics card isn't underclocking itself to 2D clock speeds when the game is running, GPU-Z will show you the clock speeds.

 

[Demoman Dawkins]

The GPU clock reading's the same as the default, so it's not underclocked.

 

[Dr.Nick]

Ok tried all those suggestions and still no luck =\ the plot thickens.