Graphic Cards CrossfireX 16x/4x Vs. 8x/8x

I think this will help anyone who is in the market for a "budget" CF config,since there are a lot of misconception that a 16x/4x motherboard is "useless"

Im definitely thinking of going CF after reading this article,maybe after 2 yrs a 6850 wud be ~6-5k
 
Fundamental problem with the test is that they use a max resolution of 1920x1080. At this resolution there is hardly any effect due to the very low bandwidth requirement. A single card from the 6xx generation (say, a 6970) can easily handle any game at this resolution with all eye candy turned on.

Crank it up to a four-display Eyefinity setup or even a pair of 2560x1600 monitors and the differences will start appearing.

Some people would run a 23" monitor off a SLI setup with 2xGTX580. We know that is stupid, and this test is equally stupid.
 
Cranky is quite correct. Initially for multi-GPU to really shine, people used to say 1920 and greater. Now with generations of GPUs releasing quick with more power, it it multi monitor which really tests it.

Overall x8 x8 or the pure x16 x16 is best.
 
Is CF ever a good option. Single cards always seem to come out better in all respects. By the time the second card is added, a new single card becomes a better proposition. I think CF is good only for people gaming on multiple monitors.
 
how many here play with multiple monitors
Click to expand...

Exactly. Which is why Crossfire itself is irrelevant for most people 'here'.

The point is that CF itself is useless if you don't have enough screen real estate to make full use of it.

Remember that each game uses the system differently. Games that are CPU limited will push the PCIe bus harder than those that are GPU limited.
 
Interesting. I would have assumed that there would be no difference or not worth losing hair over between 8x8x and 16x16x. but 16x4x , 4x4x running absolutely fine !! Sweet.
 
Slightly different from what we are discussing but I just remembered something I had read about this on another forum.

Gpu's may not use PCIE 2.0 to the fullest but apparently there are applications that need this sort of bandwidth from a PCIE slot. I think one of the examples I remember reading were raid cards.
 
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