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295x2
290x
Intel Core I5 -4690K 4GHZ
Could be CPU bottleneck and negative scaling due to the low resolution and what PCIE rate are they running at and have you tried setting the BF4 Mesh quality to medium as its a CPU hog.
I've been lazy, gonna be up'ing the CPU to 4.5 soon since it's under watercooling.
Will have a look at the mesh but would a I7 work out better or no difference?
Also in terms of PCIE Rate, No idea.
PCI-E Is 3.0X16@X8 3.0
Something's up on your end mate. Just been playing BF4 with trifire and it works just fine.
I dunno about Alien, as I find a single card is easily enough unless you're at a silly high res.