Rough retail prices:1st question...... what would be the cost of the components listed within the PS4 spec actually cost if it was a PC?
I think what Sony did was very cleaver. They demonstrated what the box will be capable of doing while partually avoiding getting too mixed up with the specifications. People get too obsessed with the specs and loose sight of the end goal.
The real question is whether Sony have achieved the next gen gaming platform at a target price or not?
If people were expecting the PS4 would rival in power a high end desktop PC (i7, top flight GPU) for £400 - they are off their rocker!
So the PS4 doesn't have to be faster than a supercomputer... it just needs to be good enough to run the games at the target resolution (to 1080p).
The PS3 processing power is pretty poor by today's PC standards, but the game performance the game houses squeeze out of it is very impressive.
7850 GPU - £150
CPU - £80
Although it's a combined CPU & GPU APU so probably looking at about £100, jaguar hasn't been released yet, the a10 5800k APU is the top of the line desktop version and costs £100.
500GB HDD - £40
PSU - £40
Motherboard - £60
8GB System ram (DDR3 so nowhere near as expensive as GDDR5) £40
Blu-ray drive - £30
Total Retail price around £400 ish
It works out about right, I'd expect retail price of the PS4 to be between £300 and £400, £300 being a 320GB version and £400 being a 1TB version.