Predict: Next gen console tech (9th iteration and 10th iteration edition) [2014 - 2017]

Status
Not open for further replies.
Is it possible that next-gen console uses hybrid RAM system? For example, 24 GB HMB2 for games and 8 GB DDR for system OS, since HBM2 RAM is very expensive.

And what about a next-gen console with AMD CPU + nvidia GPU? The performance of nvidia GPU is really better, although AMD can provide good customization for home console.
 
A cheaper alternative might be HMB2 for VRAM. 8 GBs might be plenty enough, coupled with 24 GBs or whatever system RAM for CPU and assets and junk.
 
Shifty Geezer said:
A cheaper alternative might be HMB2 for VRAM. 8 GBs might be plenty enough, coupled with 24 GBs or whatever system RAM for CPU and assets and junk.
Click to expand...
hm... Given the sunk cost of implementing the interposer in the first place, I'm not sure that'd be cost effective to introduce a second memory type on there unless they just go back to a discrete CPU & GPU.

e.g.

A) APU + HBM, significantly smaller motherboard
B) APU + HBM + 2nd I/O management (efficiency, die size?) + motherboard tracing + 2nd DRAM sourcing

hm
 
Last edited:
AlNets said:
hm... Given the sunk cost of implementing the interposer in the first place, I'm not sure that'd be cost effective to introduce a second memory type on there unless they just go back to a discrete CPU & GPU.
Click to expand...
That's actually what I was thinking. GPU with VRAM on the same die (or whatever it's called); rest a bog standard PC thing. Means more flexible solutions, and even using yet more generic parts at cheaper prices. Seems an option.
 
I expect only a single type of memory in the next consoles due to cost and complexity of the design.

I see these as viable options:

1. 16GB of HBM at 512 GB/sec BW. (2 Stacks) This is what is expected from Vega, right?
2. 32 GB of GDDR6 at 512 GB/sec BW (16 2Gb chips)
3. 24GB of HBM at 768 TB/sec BW. (3 stacks). This would be certainly more expensive, but most "next gen"

I don't really expect PS5 to have more than 12-15 Tflops of compute capability so something in the ballpark of 512 GB would be sufficient. Options 1 and 2 maybe a little BW starved when the CPU gets thrown in.
 
AlNets said:
hm... Given the sunk cost of implementing the interposer in the first place, I'm not sure that'd be cost effective to introduce a second memory type on there unless they just go back to a discrete CPU & GPU.

e.g.

A) APU + HBM, significantly smaller motherboard
B) APU + HBM + 2nd I/O management (efficiency, die size?) + motherboard tracing + 2nd DRAM sourcing

hm
Click to expand...

Higher end skus of Raven Ridge are rumored to include hbm and DDR4. I imagine the additional cost of adding DDR3/4 is cheaper than tying HBM size to the needs of the CPU.
 
dobwal said:
Higher end skus of Raven Ridge are rumored to include hbm and DDR4. I imagine the additional cost of adding DDR3/4 is cheaper than tying HBM size to the needs of the CPU.
Click to expand...
It's somewhat getting back to the argument of DDR3 + high bandwidth memory vs GDDR5, and we all saw how that played out.

My argument was that if they do choose HBM, they wouldn't fool around with a secondary bus at all and just keep things streamlined and simple.

I'd start wondering more about GDDR6 tbh. There's also a question of GPU architecture improvements that attempt to mitigate external bandwidth consumption (local caches).
 
Last edited:
Prophecy2k said:
I think that I'm with DSoup on the fact that regardless of PS4 current sales success, Sony learned a valuable lesson with the PS3 on how not to rest on your laurels in a comfortable dominant position and get caught with your pants down.
Click to expand...
Right. And people talk like Sony and Microsoft are deciding just now about what to do in 2-3 years time but those plans have been in train a while already with contracts with some partners already signed. They'll already be committed to some plans.
 
DSoup said:
Right. And people talk like Sony and Microsoft are deciding just now about what to do in 2-3 years time but those plans have been in train a while already with contracts with some partners already signed. They'll already be committed to some plans.
Click to expand...
I would think cpu and gpu are baked in with memory type and gpu functionality maybe up for tweaking.

The amount of memory likely last if history is any guide

Sent from my Nexus 5X using Tapatalk
 
McHuj said:
I expect only a single type of memory in the next consoles due to cost and complexity of the design.

I see these as viable options:

1. 16GB of HBM at 512 GB/sec BW. (2 Stacks) This is what is expected from Vega, right?
2. 32 GB of GDDR6 at 512 GB/sec BW (16 2Gb chips)
3. 24GB of HBM at 768 TB/sec BW. (3 stacks). This would be certainly more expensive, but most "next gen"

I don't really expect PS5 to have more than 12-15 Tflops of compute capability so something in the ballpark of 512 GB would be sufficient. Options 1 and 2 maybe a little BW starved when the CPU gets thrown in.
Click to expand...
didn't you mean 768 GB/sec?
 
McHuj said:
I expect only a single type of memory in the next consoles due to cost and complexity of the design.

I see these as viable options:

1. 16GB of HBM at 512 GB/sec BW. (2 Stacks) This is what is expected from Vega, right?
2. 32 GB of GDDR6 at 512 GB/sec BW (16 2Gb chips)
3. 24GB of HBM at 768 TB/sec BW. (3 stacks). This would be certainly more expensive, but most "next gen"

I don't really expect PS5 to have more than 12-15 Tflops of compute capability so something in the ballpark of 512 GB would be sufficient. Options 1 and 2 maybe a little BW starved when the CPU gets thrown in.
Click to expand...


I think, realistically, the apparation of the GDDR5x & 6 killed pretty much any chance of HBM inclusion in next-gen. HBM looks problematic from its cost structure & the logistic. AMD seems to struggle mightly just to include it for their high-end GPU.
 
I wonder if there is chance that PS5 will have 16 mounting points for GDDR memory around the APU. That would open the way for 32GB on each side of the mobo.
 
DSoup said:
Right. And people talk like Sony and Microsoft are deciding just now about what to do in 2-3 years time but those plans have been in train a while already with contracts with some partners already signed. They'll already be committed to some plans.
Click to expand...

Absolutely. The final SOC will tapeout probably a year in advance of sales with at least 18 months of design and presilicon verification time prior to that.

At least on Sony's side, I bet the design targets have been set and the it's being actively worked on. If Sony wants to use HBM in the design, they have to take that bet now that it will be cheap in 2-3 years.
 
I could be wrong, but it seems like in order to get some impressive bandwidth plus a decent amount of memory,
GDDR6 on a 512-bit bus might be cheaper than HBM2. If we're talking about a 2019 release for PS5.
 
Status
Not open for further replies.

Similar threads

A
Full transcript of John Carmack's QuakeCon 2005 Keynote
3 4 5
Replies
98
Views
34K
nemisis
N
Back
Top