Well don't forget we are looking at up to 3 SKUs based on Polaris 10. I think the lowest SKU will be around a 390 but at $199 and the higher end SKU at $299 nipping at the heels of 980ti/FuryX.
Not one of the comparisons in the chart you provided Can be used for 2 reasons:
1) Fury X is the largest flagship ever from AMD. At no point in ATI's or AMD's history could a 220-240mm2 new node chip reach the last gen's flagship when the flagship was 596mm2. Even the move from highly inefficient VLIW-4 40nm 6970 to 28nm GCN 7870 allowed 7870 to barely beat a 6970. However, 6970 was only 389mm2, not 596mm2.
2) Fury X uses the most efficient memory controller and memory type in AMD's entire stack. The HBM1 memory controller alone is smaller than a typical GDDR5 controller AMD has built since 2012. That means unlike all those next gen mid-range cards, Polaris 10 will have a far inferior memory bandwidth compared to Fiji. This is not even debatable because even if Polaris 10 has 100% memory efficiency, since the fastest GDDR5 is 8Gbps, it will never even touch Fury X's real world 387 GB/sec throughout.
In addition, Fury X probably saved 20-30W alone due to the AIO CLLC. That means an air cooled Fury X is not a 280W but a 300-310W card. That means an air cooled Polaris 10 would have almost 3X perf/watt, yet AMD just officially revised it down to 2X perf/watt:
"AMD demonstrated its Polaris 10 and 11 next-generation GPUs, with Polaris 11 targeting the notebook market and Polaris 10 aimed at the mainstream desktop and high-end gaming notebook segment. Polaris architecture-based GPUs are expected to deliver a 2x performance per watt improvement over current generation products and are designed for intensive workloads including 4K video playback and virtual reality (VR). via AMD"
http://wccftech.com/amd-polaris-10-desktop-polaris-11-notebook-gpu/
That sounds like AMD's 2.5X claim is more UP TO not on average.
Polaris 10 could reach Fury X but not at 110W, maybe at 150-175W and in select games of peasant 1080p resolution where Fury X is CPU bottlenecked even by a 4.9Ghz I7-4970K.
Polaris 10 with 2304 SPs and 911mhz clocks is also rumored for PS4 Neo. If Polaris 10 had 30-40% higher clocks than Fury X while maintaining high efficiency, why in the world would Sony give up a whopping 'free' 300-400mhz when today's PS4 already used close to 180W of power? The answer is because a 110W Polaris 10 likely has to be clocked low to maintain the power efficiency. Even the leaks had it 850-1050mhz.
Finally, the biggest red flag of them all. If Polaris 10 is sooooo amazing, then Polaris 10 Radeon Pro Duo 16GB 350W TDP with air cooling could easily cost $999. So instead AMD spent $$$, time and designed a complicated custom made cooling to launch a $1499 card April 26th? What's the logic in that? Radeon Pro Duo is being pushed for VR development.
What's better for VR development of next gen games? A next gen GCN 4.0 architecture, with the latest features, 8GB of VRAM per GPU, and much more affordable price or the $1.5K Radeon Pro Duo?
It's the same as NV releasing a water cooled GTX580 Pro Duo, but then 1.5 months later here is a GTX690 (Polaris 10 x2).