Poor Performance from CF RX 480's

[Cthanion]

Hi,

 

I'm new to the forum and this is my first post, I have recently just bought two AMD RX 480's and I have been noticing very poor performance in games such as GTA V, Crisis, and even Battlefield 1. I have noticed that despite crossfire is enabled, performance has generally always been better with even just 1 card.

 

I have checked all settings in the AMD control center, and there is nothing that should be hampering the cards.

 

My specs are:

 

Intel i5 6600k (overclocked to 4.4 ghz)

2x Asus Strix AMD 480 8gb Graphics Cards

32gb DDR 4 Venegance Ram 2666 ghz

120gb SSD

1tb HDD

Corsair Hybrid Modular 750w power supply.

ASRock z170 Extreme 4 Motherboard

 

Nothing in there is overheating whatsoever either.

 

I don't know whether this is a fault with Crossfire (I run everything in dx 11 as dx 12 support for CF is, to say the least, pitiful) or anything else.

 

I am thinking of selling both cards and going out of pocket to buy a GTX 1080 instead.

 

Thoughts? 

 

[iRileyx]

Is Crossfire definitely enabled within Crimson?

Also what do you call "poor performance" its hard to guess with no benchmarks/fps's

[Cthanion]

Apologies, yes it is definitely enabled, and poor performance as in it's tough to get past 20 fp/s on GTA V with everything maxed, I have to turn MSAA off entirely. Same situation with Crisis 3.

 

Battlefield 1 is slightly better but it drops often way below 60fps which is noticeable and rather irritating.

[Guest]

12 minutes ago, Cthanion said:

Apologies, yes it is definitely enabled, and poor performance as in it's tough to get past 20 fp/s on GTA V with everything maxed, I have to turn MSAA off entirely. Same situation with Crisis 3.

 

Battlefield 1 is slightly better but it drops often way below 60fps which is noticeable and rather irritating.

At what resolution? Quote people so they know like I did

[Cthanion]

Just now, deXxterlab97 said:

At what resolution? Quote people so they know like I did

My bad, again I'm new here haha

 

It's at 1440p, I knew there would be some performance drop going up resolutions but not this much

 

Maybe I have just been expecting too much from the 480's?

[scottyseng]

1 minute ago, Cthanion said:

-snip-

There shouldn't be that much of a drop at 1440p, that's quite bad performance.

 

Hmm strange, did it work on older drivers?

 

You could try removing the driver with DDU and reinstalling it again.

[nothereanymore]

3 minutes ago, Cthanion said:

My bad, again I'm new here haha

 

It's at 1440p, I knew there would be some performance drop going up resolutions but not this much

 

Maybe I have just been expecting too much from the 480's?

No, you should be fine at 1440p with two 480s, especially in GTAV. Then again MSAA is an absolute killer. Going to 2x at 1440p with my 1080 drops my frames by around 15. Granted I'm still above 100FPS, but nonetheless ridiculous. 

[Guest]

2 minutes ago, Cthanion said:

My bad, again I'm new here haha

 

It's at 1440p, I knew there would be some performance drop going up resolutions but not this much

 

Maybe I have just been expecting too much from the 480's?

Bf1 is certainly more demanding than gta v. These results are with settings maxed out. Latest driver? 

[nothereanymore]

1 minute ago, deXxterlab97 said:

Bf1 is certainly more demanding than gta v. These results are with settings maxed out. Latest driver? 

It kind of sucks that they don't mention the settings. MSAA, even at 2x, murders FPS in GTAV, and so do advanced settings, for next to no visual gain. 

[Cthanion]

1 minute ago, deXxterlab97 said:

Bf1 is certainly more demanding than gta v. These results are with settings maxed out. Latest driver? 

Everything is 100% up to date, I always hover around 60fps on GTA V, max I've seen is 62 fps. and Crysis 3 never gets above 30 for more than a second.

[Cthanion]

1 minute ago, Noirgheos said:

It kind of sucks that they don't mention the settings. MSAA, even at 2x, murders FPS in GTAV, and so do advanced settings, for next to no visual gain. 

Yeah I put it up to 8x to see what would happen and I got around 15fps average

[Guest]

1 minute ago, Cthanion said:

Everything is 100% up to date, I always hover around 60fps on GTA V, max I've seen is 62 fps. and Crysis 3 never gets above 30 for more than a second.

Maybe, maybe your cpu is bottleneck. There could be a chance. 

[nothereanymore]

Just now, deXxterlab97 said:

Maybe, maybe your cpu is bottleneck. There could be a chance. 

He could use Aida64 or MSI AB to measure invididual core usage, and if one is hitting 99%, and any of the GPUs aren't at 99%, then its a bottleneck.

[Cthanion]

Just now, deXxterlab97 said:

Maybe, maybe your cpu is bottleneck. There could be a chance. 

An i5 6600k? I had just upgraded from AMD 8300 to the 6600k, I was thinking of selling that and going straight for the i7 6700k 

[Guest]

Just now, Cthanion said:

An i5 6600k? I had just upgraded from AMD 8300 to the 6600k, I was thinking of selling that and going straight for the i7 6700k 

What's the cpu and gpu usage in game

[Cthanion]

13 minutes ago, deXxterlab97 said:

What's the cpu and gpu usage in game

CPU usage was 100% in game and the gpu usage hovered between 80-100% for the first card and 60-80% for the second

[Guest]

2 minutes ago, Cthanion said:

CPU usage was 100% in game and the gpu usage hovered between 80-100% for the first card and 60-80% for the second

Yeah. if you have high cpu usage then you are being bottlenecked. Solution is obvious, get a new CPU.i7 6700k is a good choice. Meanwhile try ocing the CPU If you haven't 

[XenosTech]

4 minutes ago, deXxterlab97 said:

Yeah. if you have high cpu usage then you are being bottlenecked. Solution is obvious, get a new CPU.i7 6700k is a good choice. Meanwhile try ocing the CPU If you haven't 

I would just buy a 6700k or go to the x99 platform.