I do agree that (with the info at hand and if they are correct) the hardware looks straight forward.I agree. I think its pretty clear that Sony went with something simple yet powerful. Something that wont break bank and won't be able to turn your car on from your couch, but still good gaming system. MS went in other direction. We are going to see how that pans out.
I'm not calling MS out yet, I have more "faith" in their engineers than in Sony's and I'm sure they are going to make interesting and efficient choices with hardware.
But wrt to breaking the bank, I would be a bit less confident, that is pretty big chip on an expansive process, we speak of 4 GB of GDDR5.
I'm not sure that it is going to be that cheap if at all.
Looking at those "info" and the noise around durango I wonder if MSFT again was extremely wary about going with "big" chips and every chips in the consoles could end under 185mm^2 as in the 360.
Thinking of those "blocks" (assuming its real hardware not "functional/software" blocks, for example I could see something like this:
chip#1 CPU cores (whatever they are) and some DSP (rumors... if there are DSP I would expect the CPUs to be IBM for some reason) 120<X<150mm2.
chip#2, 12/14CUs, 12/16 ROPs bunch of sram just below the 160mm^2<x<180mm^2, no video processing engine here, a bare GPU+its scratchpad memory.
Chip#3 super north bridge/southbridge, could be a dual core jaguar with a 1 or 2 SIMD CPU, it runs the OS, DSP for Kinect, obviously (if it's a north bridge) that is where the memory controller to the DDR3 are. Lot of the chip is IO related.
May be those extra DSP people spoke about, it would be tiny 100/120mm^2 and possibly produced on a LP process.
/I'm not an engineer so it could not make sense some could do better here that is for sure. Though the idea is not crazy (though the way I present it might be), what would be is the cost of designing those three different blocks even if it turns as a win wrt production costs.
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