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Hynad on 19 April 2013
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disolitude said:
ethomaz said:
disolitude said:


That's a low end card which as bandwitdh issues. Also that's an average of games some of which don't scale well. The ones that scale do at almost 90% efficiency. However you have games like Batman Arkham Asylum which don't scale at all. Essentially console ports usually suck at scalling

Games like Farcry 3, Crysis 3, Metro 2033 or any powerhouse games that are properly coded for PCs often see 100% scalling with second GPU.

http://www.hardocp.com/article/2012/12/05/far_cry_3_video_card_performance_preview/3#.UXGB17VJM1I

Like I said it all dependent on drivers and the result is not always great... there are a lot of graphics issues too... the SLI is a little better but in the same boat.

And 100% scaling is bullshit or anything is holding the single-GPU... if you have a GPU with A specs and mate a Crossfire with 2x A specs the result will never be 100%.


It's not bullshit actually... And this issues are massively overblown. I've ran SLi and crossfire sincle GTX 260 and microstuttering has been all but eliminated.

You probably have CPU bottlenecks or are using 1080p resolutions when you don't see high scalling. Try playing with 5760x1080 in eyefinity surround. GTX 670 SLi has 90-100% scalling compared to single 670 with almost any game I have played. If you're already getting high frame rates and CPU is a bottleneck, a second card isn't going to help you at all. However having something like 3D vision enabled on 3 screens will see amazing scalling even on 3 cards because you're actually pushing the GPU to the max. 

I can send you benchmarks and screenshots to prove it if you'd like to see what kind of scalling 2 high end GPUs get on 3 monitors.

I don't need proof. But I'm all for glorious pics!