Ah yes, the infamous TG Crossfire Scaling Analysis, which states:
It also doesn't test any P55A boards. Update with current technology and then at least you'll have some figures to support your claims, or prove them wrong.So what’s left? We still haven’t seen how an X58 motherboard with x16/x16/x4 slots compares to today’s x16/x8/x8 sample, whether or not a PCIe hub such as the NF200 can help the P55 to cope with additional cards, or how badly a P55 motherboard in x8/x8 mode can hurt a pair of dual-GPU cards, such as the Radeon HD 5970. We don’t have the parts in place to test all those variables, but will continue to consider your suggestions while we assemble components to put at least some of these questions to rest.