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PS4's memory subsystem has separate buses for CPU (20Gb/s) and GPU(176Gb/s)
- Thread starter alexandros
- Start date
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insert_foot_
I had a feeling the PS4 would be stealth downgraded before launch
Stuff like these posts just suck, because this specification has been talked about in April.
It's pure ignorance to post this. It clutters up the people that genuinely want to understand this stuff.
madmaxx350
Member
:lol
iceatcs
Junior Member
Twilighter will hate it.
I mean onion and garlic - at least we don't need them.
Raist said:
Interfectum
Member
Please tell the class how this is a 'stealth' downgrade or a downgrade at all? Can't wait to hear this.
Kazuma Kiryu
Member
oh god, the ignorant posts just keep on coming.
Ace Harding
Member
Wait, what's up with that?
We were lied to. Preorder canceled.
Zombie James
Banned
These specs have been known since April.
Leaked image from before the upgrade.
This better be a joke post because it's posts like this that get people banned.
Its old, they changed it to 8gbs later
alexandros
Banned
Just ignore them, it's for the best.
Interfectum
Member
Did you miss February?
You do realize this an old document leaked before the original PS4 announcement?
Raist is being facetious.
What is with all this misinformation? It clearly says in the article that there is a bus for the cpu to access main memory, and in addition to that, you have another bus bypassing the cache with direct access to gpu for compute jobs. It is this extra bus to the gpu that is 20GB/s.
Admit it, you sat on your keyboard and shat yourself and this post ended up on the internet by mistake right?
Ace Harding
Member
I was trying to add on to the sarcasm - didn't work.
SuperSonic1305
Member
This is the case every generation.
Cornbread78
Member
OMG, never post this abomination again...WTF?
TheLaughingStock
Member
Why? No downgrade took place so far.
iceatcs
Junior Member
And pc too. I think the standard still way behind. Eventually it will catch up very soon, I hope, if lot of people start to buy Window 8 PC.
ITT an upgrade is called a downgrade. Smh.
It is a modification to improve the performance of gpu compute.
Kazuma Kiryu
Member
Yeah, same old suspects as usual too.
Some nice tidbits in the article, but the best part for me was this:
I know i know, everyone's been saying it for a long time, but it's great news.
This made me lol so hard. Should have gone higher though.
If that's correct, then it seems very clever.
anexanhume
Member
The only "downgrade" from rumors was the 192 GB/s number came in at 176 GB/s. Everything else has been met or beat. 1.6 GHz octa core CPU was right on. 1.84 TF GPU was right on (with no silly 14 CU for graphics, 4 for compute division). 4GB GDDR5 was beat with 8GB.
The part that makes it more unified than what was seen on for example the 360, is that instead of just sharing a common pool of memory the CPU and GPU on the PS4 (and Xbone) have unified memory access.
That's the next-gen part, as it means there is no need to translate (and thereby copy) something from CPU specific memory to GPU specific memory (incompatible pointers) but everything is one common understandable memory.
The CPU can use the 20GB/s bus to prepare parts of the memory where the CPU shines for later compute jobs where the GPU shines and that doesn't result in let's say 2GB of traffic over the buses when the data they want to modify is 1GB in size.
So overall, I'd argue yes to your question.
alexandros
Banned
Unless I'm misreading, that's not what it says. The Onion bus is for the communication of the CPU with the RAM.
FlutterPuffs
Member
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