In DepthMulti-GPU tech is now a legitimate use of a second GPU, instead of a horrible waste of silicon and shaders.
Buying GuideThe SLI vs CrossFire debate continues as we pair up the top midrange offerings from Nvidia and AMD
MSI has thrown absolutely everything at its latest Big Bang Marshal P67 motherboard, and it all seems to have stuck. This is quite simply the most fully featured Sandy Bridge P67 motherboard around.
You need a fair amount of engineering muscle to jam two of the fastest GPUs you've ever manufactured onto one slab of PCB and still get it running happily, and that's exactly what AMD has done with this, the AMD Radeon HD 6990.
As the very cheapest of the HD 5770s we've tested, XFX's offering grabs our interest. Shop around, and you can have one of these for as little as £116 – that's a whole £35 cheaper than Sapphire's offering, with its four-screen EyeFinity capability.