There are rumors that AMD is going to support both DDR4 and GDDR5 in future PC products. Soon we will be able to build PC's that are almost identical to the Xbox One and PS4 in configuration.

HAHAHAHAHA, no. Think again on the stuff your pc misses and reply back.

well you could have just said you were quoting Australian prices lol. I am sure they will be up aroud your original post cause of our dollar situation atm.

AMD will be useing GDDR5 for a form of Sideport, if you recall AMD had a similar implemention on it's older IGP's found in the Xpress, 780 and 880 chipsets where motherboard manufacturers if they were so-inclined would include 32Mb-256Mb of DDR3 memory on the motherboard just for graphics. (IGP could use Sideport+System memory in tandem for a combined pool.)
Most of the time it wasn't a large performance improvement, latencies were down, but the bandwidth wasn't really better.
GDDR5 version of Sideport should be a massive boost.

Failing that, the other option that AMD could take is to throw a heap of ESRAM/EDRAM at the problem, much like Intel did with the GT3e IGP's.

As for DDR4, Intel is moving to it with Haswell-E so it will probably trickle down to AMD's APU's one day when it's cost competitive with DDR3.

But in general, the PC won't be getting a large pool of GDDR5 memory for the entire system anytime soon.

I already did that, like 24h ago.

Good, now you know you cant build a comparable pc for 400 bucks.

i mainly buy consoles because of jrpgs. ps3 was a little bit of a disappointment regarding that but let's see what happens with ps4. as for a pc, so far i can't see that jrpg developers care much about releasing their new games on pc. as long this is a given i don't care about the fact that the pc gaming experience is severely better than the console experience. to buy a high end pc i need games that are worth it. And shooters or mmorpgs for example are not.

Aah ok i see. Still with high speed DDR4 we should get bandwidth close to that of the Xbox One, and rumours suggest that amd's next high end APU would be 4 core cpu with an IGP of HD7790 level.

Are you kidding my 4 year old pc with updated videocard puts out twice more teraflops than the next gen consoles behhehe I love consoles just saying.

Nah. DDR4 won't be much better than high-end DDR3, at-least initially and only in terms of bandwidth.
It certainly won't be cheaper for many years.

I mean, we didn't exactly get DDR3 2400mhz kits on the day the standard was released, it took years for memory speeds to creep that high, the same will hold true for DDR4.

Besides, outside of APU's CPU's generally don't benefit much from faster Ram, compare a Phenom 2 x6 with DDR2 against DDR3, the performance increase is almost non-existent.
Or compare Dual-Channel against Quad Channel on the socket 2011 platform, most real world applications won't see any benefit.

It's the graphics that is memory hungry unfortunatly, Sideport or EDRAM/ESRAM is one way to get around it or AMD could go Quad-Channel on it's APU line, but that would require more PCB layers and traces which would drive up costs substantually on a very cost-sensitive piece of hardware.