Dual 580s in SLI or 2 5870s in crossfire

[Baron]

Originally Posted by speculum jockey

Luthier said that SLI/Xfire was inconclusive at this time. Do you know something he doesn't? Did we miss an update?

Also, SLI/Xfire is for people who want to game at huge resolutions or on multiple monitors. A single card of the next generation will typically outperform 2 cards of the previous generation in an SLI/Xfire configuration, and do it cheaper as well.

Wait and see before you drop come coin!

Edit: Found the post by luthier http://forum.1cpublishing.es/showpos...&postcount=241

P.S. Note that i never said if the performace gain would be 1 fps or 100.

The reason Luthier cant awnser the "how much gain will Sli/crossfire give" is because A: the game aint finished. B: There isnt any Sli/crossfire profile for CoD out yet, since the game aint finished. C: Asking Oleg and team to run any kind of configuration under the sun to save us a buck is kind of crossing the line into lala land.If people want sli/crossfire to give a 100% boost i suggest you all contact NVidia/AMD right now and put the pressure on.

I would however be extremely surprised if at least Sli didnt get a boost since Oleg stated they worked with NVidia



Anyhow, i think we are digressing from the original question.

Originally Posted by Baron

P.S. Note that i never said if the performace gain would be 1 fps or 100.

The reason Luthier cant awnser the "how much gain will Sli/crossfire give" is because A: the game aint finished. B: There isnt any Sli/crossfire profile for CoD out yet, since the game aint finished. C: Asking Oleg and team to run any kind of configuration under the sun to save us a buck is kind of crossing the line into lala land.If people want sli/crossfire to give a 100% boost i suggest you all contact NVidia/AMD right now and put the pressure on.

I would however be extremely surprised if at least Sli didnt get a boost since Oleg stated they worked with NVidia



Anyhow, i think we are digressing from the original question.

You dont need driver support to test an SLI setup, you can create your own profile, the reason why the Devs have not done this is beyond me. However being that this is a very similar engine to Il2 the GPU will have little effect its the CPU that will show the biggest performance in game.

As for building a 5+ year system, here's a rough visual representation of why this is a bad idea.

As you can see you are really paying through the nose for those last few FPS that you're not going to get with a $1000 system. But! Buying more often for a more reasonable price yields better results since that $1000 system the next year will trounce that $3000 system, and probably have more features and options. Plus you're getting a new warranty as well.



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[Codex]

Originally Posted by luthier

I don't understand the question about multi GPUs.

Of course they are supported! How can they be not?

Whether they offer any performance advantage is a different question, to which I don't have an answer at this time.

That comment suggests to me that there's no code optimisation in CoD itself for Multi-GPU, and they're relying on the drivers to do all the work.

I wonder if Luthier can clarify this.

Originally Posted by Codex

That comment suggests to me that there's no code optimisation in CoD itself for Multi-GPU, and they're relying on the drivers to do all the work.

I wonder if Luthier can clarify this.

Thats exactly what it means.

[Baron]

Originally Posted by TUSA/TX-Gunslinger

Concur - good info.

There's not a single propeller flight sim I'm aware of that benefits from SLI or Xfire. With the cost of the extra card - and the higher price motherboard (2X 16X PCI-E) you would be taking a huge risk.

Best advice is to wait until the product is delivered. If CoD runs out of the box on either Xfire or SLI then it will be the first. Otherwise you've spent a large amount of money on performance you'll never see.

I currently have a single 5870 I purchased more than a year ago. My MB is a Gigabyte with 1 16X slot and 1 8X slot. If by some miracle CoD is xfire compatible AND a second 5870 makes a significant difference in the eye-candy I can run in real time - then I'll find a second 5870 and get a new MB.

I really don't believe that will be the case however. I hope I'm wrong.

S!

Gunny

P.S. Running 16X or 8X makes virtually no difference whatsoever (around 3% iirc)