• Hey, guest user. Hope you're enjoying NeoGAF! Have you considered registering for an account? Come join us and add your take to the daily discourse.

What CPU performance should we expect from PS5

Shin

Banned
The latest PlayStation 5 specs leaks suggest that the next PlayStation console should be equipped with a Zen-based Ryzen CPU. Browsing through PlayStation 5 specs leaks, you can find how much more powerful its GPU may be but it’s difficult to find anything on the CPU side of things. So let’s explore how the Ryzen CPU compare to the Jaguar based AMD Kabini CPU that is very similar to CPU you find in both the base PS4 and PRO models. How much more powerful could a potential PS5 ZEN base CPU be over current PS4 PRO’s Jaguar based CPU?

For starters, there is no 8 core laptop base CPUs that we could use for this comparison, so I selected 2 four core CPUs:
Ryzen 5 2500U is a ZEN based laptop CPU clocked at 2GHz. A6-5200 is a Jaguar based Kabini CPU closed at 2GHz as well
One thing to note here is that Ryzen CPU has a boost clock of 3.6 GHz for one core so it may be a 3.2 GHz boost for all 4 cores.
Clock boost should be present in the console CPUs as per the latest PS5 Gonzalo APU leak where it’s being speculated that PS5 boost clock should be 3.2 GHz

So lets check benchmarks.

According to HWBench.com, Ryzen CPU beats Jaguar CPU on average by 362% in Synthetic Performance, 396% in Multi Thread Performance and 328% in Single Thread Performance. That should lead to a significant boost in performance. Single Thread Performance is very important here as games do depend on a single thread performance a lot still even though in the future this should change and multi thread performance should matter more. But if we look an these charts we see 328% to almost 400% boost in performance.

That kind of performance boost should be more than enough to allow all games to run at 60 FPS and handle all kinds of AI and physics calculations. This doesn’t necessary mean that all games will run in native 4K and 60 FPS of course as it really depends on how developers utilize the technology. Some may decide to push for such realistic and fantastically looking graphics and high resolution that GPU may be a bottle neck and we may end up with 30 FPS. What I’m saying though is that if developers adjust graphics fidelity and resolution right, the CPU should be able to handle all games in 60 FPS no problem.

Credit: Gaming.net

NOTE: no new information and the benchmark is old, but it put things into perspective for those wanting to get a better idea of what's to expect.
 
Last edited:

Xyphie

Member
Zen 2 8C/16T with clocks that gives it 25W TDP (which should be ~3GHz). I can see them doing doing higher clocks on individual cores (with other cores disabled/downclocked) for developers that wants higher per core performance.
 

Shin

Banned
Fake Fake What do you mean by low profile, cheap(er) to make?
If yes I can't say I've came across anything that indicated that it's more expensive than Ryzen 1st Gen or the refresh Zen+.
Plus that CPU was created for 7nm from the get go which I assume saves a bit on R*D as it doesn't have to be redesigned from E.g 12nm -> 7nm, plus 7nm savings itself.
Sure it's newer technology but at the time of the console launch it will be current tech as Zen 3 is scheduled for 2020 so I honestly don't think we're going to get the 1st/2nd Gen.
 
I'd hope it would run circles around a 10 year old, 6c/12t CPU like the one I still have, but for some reason I get this funny feeling it will be a lot closer than it should be.
 

Fake

Gold Member
Fake Fake What do you mean by low profile, cheap(er) to make?
Yeap. I mean, my guess is or choise Ryzen+ right now or wait more one year to reduce the price of Ryzen 2.

The key for the next gen is without doubt the manufacture cost. Is essencial.
 
Last edited:

Type_Raver

Member
Not only an FPS improvement, but considerable improvements to AI and physics - no. of objects, characters and move complex destructible environments as well.
 

LordOfChaos

Member
One thing to note here is that Ryzen CPU has a boost clock of 3.6 GHz for one core so it may be a 3.2 GHz boost for all 4 cores.

Kind of a low effort article tbh, didn't even bother finding out that the all core turbo runs around 2.7GHz, and further didn't scale the percentage gain between the two chips to the expected clock speeds. Right ballpark but didn't try to go more accurate, so if the PS5 holds a 3.2GHz clock speed it would be a bit higher, more like ~400%.

https://www.techspot.com/review/1545-amd-ryzen-5-2500u/page5.html
 
Last edited:
Low-end desktop Ryzen of some kind, tweaked for mobile power requirements. Would still smash puss as a console cpu. After all the goal would only be 60fps. Doesn't take much cpu to maintain that these days.
 
Last edited:

Justin9mm

Member
I think in order for the next gen consoles to be competitive next gen they need to be putting in the best hardware they can at almost a loss. I think this next gen is going to be the trickiest balance between power and cost.

Edit: I don't doubt that AMD is probably doing something custom for the next gen consoles.
 
Last edited:
Personally, I believe it'll be something like this

8ohJ5dY.jpg
 

Shin

Banned
Here's a good reminder from Albert Penello (he was pretty much as close as it got in terms of development so his comment has weight behind it and serves as a reminder for us all):

Sony and Microsoft know exactly the prices and specs they intend to launch, and they know it before a contract with AMD is ever signed. An enormous amount of diligence is done on a process like this internally - and figuring out the pricing and specifications of what you can build are, like, fundamental to the whole process. It's literally Step 1.

The reason is they have modeled the entire architecture and are building system components in parallel - not in series. So they have to know roughly where everything will land so that the motherboard, cooling system, case design, fan speeds, radio antennas, and countless other components all land to support the intended price and performance targets. Margins on console are super thin so there is not a ton of room to make major changes late in the program.

Now - things can change. But those changes are almost always in the margins. In the case of the Xbox One for instance, the entire case and cooling system was way overdesigned (obviously given the size!) which allowed the team to increase the clock speeds after the initial parts were tested. This was not part of the plan, and had the case been designed to precisely hit the target there would not have been the headroom to change the clock speed. And on top of that, there was a huge amount of time spent calculating the cost of that change - because even something as small as a 10% clock increase could have more than a 10% yield implication both at launch, and over the long term. So these things are not taken lightly.

So I think it's important to know that specs and prices are set pretty early in the process. Yes, things can change and evolve, but it's generally small tweaks because the implications of doing a major change late in the process are very risky. This is why any idea that Xbox One X made any change or reaction based on the Pro shows a fundamental misunderstanding of the timelines HW works on.
 
Top Bottom