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Posted

Sony PS4 dev kit FCC filing shows off extra ports, 2.75GHz max clock frequency 

ps4-dev-kit-front-back.jpg

Sony proudly showed off its PlayStation 4 hardware for the first time at E3, and now we're getting a peek at what developers are working with this generation thanks to the FCC. The DUH-D1000AA prototype Development Kit for PS4 is listed in these documents, tested for its Bluetooth and 802.11 b/g/n WiFi radios. As one would expect, the diagrams show it eschews the sleek design of the consumer model for extra cooling, a shape made for rack mounts plus extra indicator lights and ports. Also of note is a "max clock frequency" listing of 2.75GHz, and although we don't know how fast the game system will run by default, it's interesting to hear what all that silicon may be capable of (as a commenter points out below, that may relate to the system's 8GB of GDDR5 RAM) while maintaining a temperature between 5 and 35 degrees celsius. Hit the link below to check out the documents for yourself, after seeing this and the system's controller become a part of the FCC's database all we're left waiting for is Mark Cerny's baby.

sony-ps4-dev-kit-specs.jpg

 

 

Source: http://www.engadget.com/2013/07/16/sony-ps4-development-kit-fcc/

 

So much for the PS4 is going to overheat comments  :rolleyes:

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Posted

Wonder if they will allow higher clock speeds in the future, we know PSP was clocked down to 222MHz from 333MHz and that some games allowed the full clock speed.

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Posted

Source: http://www.engadget.com/2013/07/16/sony-ps4-development-kit-fcc/

 

So much for the PS4 is going to overheat comments  :rolleyes:

 

Uh.  the PS4 dev kit is twice as think as the PS4 (ie more room for cooling).  The PS4 retail could STILL have overheating issues.  Until people have them in their homes no one knows if this will be/won't be an issue.

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Posted

I can't see it going much higher. Surely this thing must be putting out some serious heat for how small the console is ?

 

Am I right in thinking there's been no pictures of the internals yet?

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Posted

So much for the PS4 is going to overheat comments  :rolleyes:

So Sony is now selling devkits to everyone? :laugh:

 

(and no, I don't think PS4 will have heat issues)

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Posted

Uh.  the PS4 dev kit is twice as think as the PS4 (ie more room for cooling).  The PS4 retail could STILL have overheating issues.  Until people have them in their homes no one knows if this will be/won't be an issue.

 

The PS4 is clocked at 1.8-2ghz, the dev kits are 2.75ghz.

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Posted

Uh.  the PS4 dev kit is twice as think as the PS4 (ie more room for cooling).  The PS4 retail could STILL have overheating issues.  Until people have them in their homes no one knows if this will be/won't be an issue.

The dev kit also has to handle debug in parallel with the games.

 

anyone who's been properly beta testing(no not modern beta testing which is another word for public beta and stress test) knows how much debug code affects performance. 

 

and the dev kit is much bigger, and has a much different cooling solution, and it doesn't need to worry about sound from the cooling either so it probably ramps up to 9000 

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Posted

makes you think why the Xbox One is as big as it is. I think ESRAM produces a lot of heat and needs a lot more cooling than the other components.(Not critiquing performance here)

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Posted

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I'd love to know how they're keeping a 2.75Ghz AMD chip with GPU, and DDR5 RAM, at 35c, that's the best ambient temp I've ever seen for a whole system with such small cooling.

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Posted

I wonder if Sony or MS are going to leverage something like the Turbo Boost feature on AMD and Intel processors.

 

That could allow them to get more speed out of some cores when the others aren't being used. It works on pcs, so why not these consoles? If devs had that kind of option as in utilize just 4 cores but at a higher frequency than using all 8, that could be useful.

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Posted

I can't see it going much higher. Surely this thing must be putting out some serious heat for how small the console is ?

 

Am I right in thinking there's been no pictures of the internals yet?

 

I'd be surprised if they didn't put some serious copper inside to get enough heat dissipation. In essence, losing extra money on each sale in exchange for a more desirable box.

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Posted

I still don't understand these heat concerns that everyone seems to have.  These next-gen consoles won't be sucking nearly as much power as a launch X360/PS3 did.  People never seem to be concerned about high performance laptops but you build a console that's 3 times the size of those and suddenly people are worried?

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Posted

on that note, gaming laptops are traditionally a lot thicker than normal non gaming high performance laptops. and they're often a wedge shape with a thicker back end ventilating hour air through the thick ear and sucking in air and the bottom and front usually with at least two fans. Despite hardware that makes a lot of heat these laptops (at least the Toshiba Qosmio with which I have experience) Don't get warm at all even on high end gaming, even the exhaust air isn't really warm. 

 

That said, mobile gaming laptops don't translate directly to gaming machines designed for a specific heat threshold though. 

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Posted

Did people forget that the CPU is actually a mobile processor? 

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Posted

Did people forget that the CPU is actually a mobile processor? 

based on.  and with a powerful graphics card which is what makes most heat anyway. 

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Posted

Did people forget that the CPU is actually a mobile processor? 

 

Tony is correct, both the PS4 and Xbox One have the AMD 8-Core processor, which is based on the low-power (low heat) Jaguar architecture. The jaguar processors are designed for the new ultra-slim type laptops and slim electronics (tablets).

 

Jaguar architecture (Kabini and Temash) Main article: Jaguar (microarchitecture)

In January 2013 the Jaguar-based Kabini and Temash APUs were unveiled as the successors of the Bobcat-based Ontario, Zacate and Hondo APUs.[43][44][45] The Kabini APU is aimed at the low-power, subnotebook, netbook, ultra-thin and small form factor markets, the Temash APU is aimed at the tablet, ultra-low power and small form factor markets.[45] The 2 to 4 Jaguar cores of the Kabini and Temash APUs feature numerous architectural improvements regarding power requirement and performance, such as support for newer x86-instructions, a higher IPC, a CC6 power state mode and clock gating.[46][47][48] Kabini and Temash are AMD's first, and also the first ever quad-core x86 based SoCs.[49] The integrated Fusion Controller Hubs (FCH) for Kabini and Temash are codenamed "Yangtze" and "Salton" respectively.[50] The Yangtze FCH features support for two USB 3.0 ports, two SATA 6 Gbit/s ports, as well as the xHCI 1.0 and SD/SDIO 3.0 protocols for SD-card support.[50] Both chips feature DirectX 11.1-compliant GCN-based graphics as well as numerous heterogeneous system architecture (HSA) improvements.[43][44] They were fabricated at a 28 nm process in an FT2 BGA package by TSMC, and were released on May, 23rd 2013.[46][51][52]

The PlayStation 4 and Xbox One, were revealed to both be powered by 8-core semi-custom Jaguar-derived APUs.

 

 

So they shouldn't be running very hot, also they are 8-core rather than the quad-core architecture they are based on which means they'd be able to process twice as much as next-gen slim laptops.

 

The 2.75GHz clock speed on the devkit processors is possibly for debugging as mentioned earlier but I don't think so, devkits are typically computers used to test games on which has similar specs to the console.

 

When computers run windows, event (code, bugs, etc) loggers and emulators it uses up more processes and Sony must've tested how much they utilize and compensated that with a higher clock speed cpu.

Or it could just be that the CPU isnt a bottleneck for the PS4 so they pushed it to 2.75GHz just so it wouldn't cause any issues and just matched the GPU specs?

I'm more interested in what GPU was used in the devkits if anyone has that info?

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Posted

again, you just said it yourself based on, it doesn't mean they make the same heat as the cpu's they are based on, though they are very energy efficient CPU's also on laptops they auto clock down when they get hot, and just because they're laptop CPU's don't mean they don't get hot, which you should know if you even used a high end non gaming laptop. 

 

pn top of that you just mentioned that unlike the laptop counterpart they have 8 cores instead of 4. you don't think this might have a "slight" effect on the heat generated. doubling the amount of power using cores ? think about it. 

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Posted

again, you just said it yourself based on, it doesn't mean they make the same heat as the cpu's they are based on, though they are very energy efficient CPU's also on laptops they auto clock down when they get hot, and just because they're laptop CPU's don't mean they don't get hot, which you should know if you even used a high end non gaming laptop. 

 

pn top of that you just mentioned that unlike the laptop counterpart they have 8 cores instead of 4. you don't think this might have a "slight" effect on the heat generated. doubling the amount of power using cores ? think about it. 

 

The thermal design power of a mobile CPU is a lot lower than that of a normal CPU, that's the point I'm making.  I'm not saying it won't run hot, but it'll be no where near like it was with the 360/PS3.

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Posted

again, you just said it yourself based on, it doesn't mean they make the same heat as the cpu's they are based on, though they are very energy efficient CPU's also on laptops they auto clock down when they get hot, and just because they're laptop CPU's don't mean they don't get hot, which you should know if you even used a high end non gaming laptop. 

 

pn top of that you just mentioned that unlike the laptop counterpart they have 8 cores instead of 4. you don't think this might have a "slight" effect on the heat generated. doubling the amount of power using cores ? think about it. 

 

Power to core is the same, doubling the cores doesn't mean the heat generated off the entire processor increases.

 

Laptops can get hot because they don't have the same air flow as a desktop PC. The laptop CPU's consume around 40W on current day setups and desktops use around 120W. I'm not sure how much you know about electricity but pushing 120W into the same size conductors as the laptops ones means more heat than that of the laptops CPU. If you add more cores it doesn't equal more heat as long as the cores aren't added to the same size board or if power is split evenly to each core without it combining onto one conductor.

 

I don't really see the purpose of your post but I'm assuming your trying to say laptops can get hot also? If a desktop pc cpu and a laptop cpu had the same cooling system, the desktop pc cpu would run much much hotter. Both the PS4 and XB One have adequate space for cooling and are based off low-power/low-heat jaguar architecture so its unlikely heating issues will arise from the CPU's.

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