DDR5 Could Reach The Consumer Market As Early As 2019

[Pemalite]

Bofferbrauer2 said:

CGI-Quality said:

I know some may not realize the significance of this, but it's a big deal. It pushes consumer RAM development up a year, while also! So that's GDDR6 in 2018 (thank you, Volta), with DDR5 in 2019!

Console fans - pay attention!

 

 

Not of DDR5, however (at least, I hope not). Probably 16-32GB of G5X or G6.

Probably GDDR6, as it theoretically consumes much less power for the same bandwith compared to GDDR5(X). This leaves quite some more Watts to spend on other things like CPU or GPU

Not to mention the increase in chip densities. Which will be important if you want to aim for 16GB/24GB/32GB of DRAM in the next gen and still be affordable.

Bofferbrauer2 said:

Even then, in dual channel we're still below 60GB/s, which is barely enough for 16 CUs maximum without starving them to death with the low bandwith. There's a reason why the APUs stayed at 8 CUs for so long and only going up to 10 with Raven Ridge now.

DDR5 won't start with that speed. Just like DDR4 starts off at 1866, I expect DDR5 to start off as low as 4000 or even just 3600 while it would need 6400 for the 51.2GB/s per channel. So it will take a while until that bandwith is actually available for APUs, and by that time their power compared to high-end GPUs won't budge very much - it might even drop even further down the line depending on how fast the top of the line evolves.

You are only comparing raw bandwidth. Which is going to be inaccurate.

nVidia and AMD are constantly inventing new technologies to save bandwidth you know with various forms of culling and compression.
So your "16 CU Maximum" claim is without basis.

The main limiter for why APU CU counts haven't exploded is entirely down to costs... AMD typically reserves roughly 50% or more of the die space on an APU... Entirely to the GPU. And that's with current CU counts on chips like Kaveri with up-to 8 CU's. 8.

KBG29 said:

PS5 will likely have 96GB of GDDR and 32GB of DDR. Anything less would be a PS4 iteration. Otherwise the console industry becomes the cell phone industy, dropping new numbered units without any significant improvement over the last model. 

People made similar ludicrous claims with the Playstation 4 Pro, Nintendo Switch and heck even Scorpio before release...

In the end, it all comes down to costs and the available technology.
There is only so much hardware you can throw into a box that fits into the $400-$500 price bracket. Which means 128GB of Ram when memory densities haven't increased at the same rate at the same price points? Ain't going to happen.

KBG29 said:

Next gen will have 128GB of RAM, a 16x increase just like we have seen in every generation since PlayStation.

PS1: 3MB Ram. (2MB Main, 1MB video)
PS2: 40MB Ram. (32MB System, 4Mb Graphics, 2MB Audio, 2MB I/O.)
PS3: 512MB Ram. (256MB System, 256MB Graphics)
PS4 8448/9216MB (Pro) Ram. (8192MB System + 256MB/1024MB Background/OS)

PS1 to PS2 = 13.33x increase in Ram.
PS2 to PS3 = 12.8x increase in Ram.
PS3 to PS4 = 16.5x increase in Ram.
PS3 to PS4 Pro = 18x increase in Ram.

Other than the jump between the PS3 and base PS4... Your statement does not hold true. (Even then you are slightly off.)
And the only reason why the PS3 to PS4 jump was so impressive was because it was an extended console generation.