It's hilarious how devs are going to target the PS4's lower RAM, but somehow NOT the Durango's lower flops. If anything they'll do both. Go look at Xbox vs PS2 where Xbox had a massively massively better GPU, but 90% of multiplatforms basically looked like the PS2 game.
The fact is the RAM advantage for Durango (5:3.5) is 43%. Thats essentially as large as the flops advantage that everybody is rushing to bury Durango and crown Orbis king over. That and the possibility MS could reduce OS footprint over time and make it even bigger, say 6GB would seem to be a obvious target. I find the spin hilarious, I even see armchair gaffers declaring "whatever MS sets for the OS reserves cant ever be changed" wishful thinking. To which I point out how much the PS3 OS allotment was reduced over time. I dont think MS has plans to reduce os footprint currently, but I bet their plans may change if they realize they need extra visual punch vs Orbis. And say a 6GB/2GB split still leaves way more for OS than anybody seems to think reasonable.
That's not even knowing the rest of the systems. Apparently the audio DSP's in Durango are super powerful. In order to keep up with them is PS4 either going to have to downgrade audio, or suck up precious CPU cores? There are lots of caveats we dont even know about here.
I'd guess a 50% deficit in one narrow component might lead to 20% better looking games if that was the only difference. But now account Durango's more RAM, the fact most games are multiplatform, and maybe the difference will be 5%? With Durango possibly $100 cheaper if the 299 PPT is to be believed, and with Kinect packed in drawing casuals? And the fact Xbox is now the defacto brand in at least the USA and UK?