There's no magic sauce in the chip. The compute engine thing, for example, helps with scheduling multiple background GPU threads but isn't really a performance improvement.

You will never see graphics out of a PS4 that exceed what is possible on a $1000 PC. The PS4' s advantages are: single spec to optimise for, lower total cost due to volume scaling.

You do realize Sony had AMD change the APU to make the computes run graphics and physics in parallel?  There's no time sharing going on here...

What does your second post have to do with AMD releasing a PS4 APU variant?

I believe the GPU is supposed to be comparable to a 7850, which is about $180. 8 gb of ddr3 is usually around $50 but the PS4 uses GDDR5. You also forgot a PSU, keyboard and mouse. And not everyone is willing to obtain an OS illegally, so you should probably include that in the total cost as well.

I did this exercise few days ago, and come up with something around $700. I've put 7870 inside though, PS4s GPU is better than 7850, so with additional Win overhead I think 7870 would be more suitable for comparative performance when all architectural enhancements of PS4 are taken in account.

I would put it around 700$ at minimum too when all is said and done. But I think it's more important that you can have a PC for 1000$ that blows the PS4 away. Still, there's no way you can beat PS4's value for now, nor obviously it's longevity.

impossible,

When GTA 3 was released on PC you had to have 32 MB graphics form min settings. And no chance for 30 FPS.

PS2 had 32 MB ram TOTAL.

So if you get AMD APU   8 GB FAST RAM etc. you will pay more and you'll get less.

For Sony PS4 is like investment so they don't make much money on HW. The same (I mean literaly the same) RAM, CPU, GPU etc. has same price as far as manufactering, but no one will sell it to you without margin (plus seperate shipment and a box). Not mentioning OS (Win7 cost).

Question is:
Let's say that Battlefield 4 is on medium details setting on PS4.
What is total cost of a PC that runs BF4 on medium setting exactly the same as PS4?

It is not only software that is optimized for PS4, Xbox One

Also consoles HW is optimized for playing games in general. CPU, GPU, drivers, OS - everything.

PC is like a regular road car and PS4, Xbox One are F1 (or go karts).

Go kart with 80hp engine would be like a monster.

You will have to wait for cpu's with faster integrated gpu's to really be able to buy a pc that is comparable to a PS4/Xbox One. You will also need a extra margin with that pc when it comes to cpu speed, memory etc. since it is less optimized. However once more powerfull APU's are released for the pc it shouldn't really be very hard to make a similiar or more powerfull pc at a comparable price. For example a amd a8 cpu coupled with atleast 4gb of decent DDR3 memory would only cost about $100 and is more powerfull than a PS3. Add the rest of the parts and you get about $300. Though compared to a PS3 you could also go for a cpu and and a seperate graphics card.

Basically compared to a PS4 you would need an 8 (low power) cpu but clocked at atleast 2.5hghz-3ghz, with atleast an HD7950 gpu integrated and 12gb-16gb high speed ram (probably have to wait for DDR4 to show up).

AMD's current stuff already does graphics and physics in parallel. This just makes it more granular. And of course it's time sharing.

Second point is just to back up that there's nothing special in the APU making it worth releasing.

No.  That's still DVD.

Bluray is s roughly 25% physical Marketshare.

Up to 50% on specific movies on good weeks. 

http://www.homemediamagazine.com/market-share/top-20-blu-ray-market-share-week-ended-051913