It looks like Polaris is targetting price points under $350:
http://wccftech.com/amd-polaris-architecture-vr-minimum-spec/
As well as price points above it.
Yer, looks like they are releasing a 290X/970 GPU that is at the $349 price point and as that is an AMD slide, I would put some stock into that. It translates to £300, which is an ok price.
They don't say there will be a 290X/370 spec card for $349, at all. They say:
"This will almost certainly mean that AMD is going to be shipping Polaris GPUs that are at least in equivalent in power to the R9 290 at a cost much lower than the $349 MSRP of the original."
I'm not sure how so many people have jumped to such concrete conclusions from an AMD presentation that leaves everything on the table, still.
Someone even suggested that the smallest Polaris GPU would be 290X performance.
It's all guesswork
