Sony reveals PS4's CPU clock (1.6GHz) - 6 cores available to developers

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Roland00Address

Platinum Member
Dec 17, 2008
2,196
260
126
I agree for those reasons, not because cooling 120-140W in a box the size of a PS4 is inherently hard.

Clockspeed being low is most likely because the chips are large (high chance for defects) and there is nothing that can be done with defective chips. They very likely run the chips at a lower frequency as otherwise they would have to throw out a larger number of them.

The ps4 actually does not use all its shaders, it should have 1280 shaders, aka 20 compute units just like the 7870, but 2 of those compute units are disabled due to yields leaving 1152 actual shaders.

Source http://www.bit-tech.net/news/hardware/2013/11/21/sony-ps4-apu/1
 

Enigmoid

Platinum Member
Sep 27, 2012
2,907
31
91
The ps4 actually does not use all its shaders, it should have 1280 shaders, aka 20 compute units just like the 7870, but 2 of those compute units are disabled due to yields leaving 1152 actual shaders.

Source http://www.bit-tech.net/news/hardware/2013/11/21/sony-ps4-apu/1

Yep, I believe that Xbone does that too.

Still yields will be higher if the required clockspeed is lowered.

I have no doubt that if the gpu ran at 1 ghz and the CPU at 2.0 ghz there would be far fewer usable chips.
 

cbn

Lifer
Mar 27, 2009
12,968
221
106
More people aren't PC gamers because of a number of factors :


#2 - Price. If you don't know how to build your own system, the pre-builts ARE indisputably more expensive than a current console for similar results.

I've found that new Core i3 pre-builts can be found for bargain prices when on sale (usually $300 to $350 for a SFF version). I think the full size desktops go for a little more, but with the addition of a 750 GTX or 750 GTX Ti its pretty much a simple out of the box upgrade:



"300 watt PSU" (Most full size pre-builts already come with this....or something very close to it like a 280 watt PSU.)

"NO 6 pin power connector"

P.S. Not sure why requirements of "400 watts PSU or greater" are commonly seen for AMD R7 and HD7750 video cards (example, this R7 240 DDR3--> http://www.newegg.com/Product/Produc...82E16814150699 (That has to be a discouraging to anyone wanting to do a simple video card upgrade, and I wonder why this is being done.)
 

NTMBK

Lifer
Nov 14, 2011
10,269
5,134
136
The design made it 8 years... In spirit at least!

To be fair they went from multiple discrete processors each with their own HSF to a single integrated APU with one large heatsink fan on the later (S and E) versions of the 360. Almost a precursor to the XBone design.
 
Aug 11, 2008
10,451
642
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I've found that new Core i3 pre-builts can be found for bargain prices when on sale (usually $300 to $350 for a SFF version). I think the full size desktops go for a little more, but with the addition of a 750 GTX or 750 GTX Ti its pretty much a simple out of the box upgrade:



"300 watt PSU" (Most full size pre-builts already come with this....or something very close to it like a 280 watt PSU.)

"NO 6 pin power connector"

P.S. Not sure why requirements of "400 watts PSU or greater" are commonly seen for AMD R7 and HD7750 video cards (example, this R7 240 DDR3--> http://www.newegg.com/Product/Produc...82E16814150699 (That has to be a discouraging to anyone wanting to do a simple video card upgrade, and I wonder why this is being done.)

Exactly. I have said this before, I see the 750Ti as a great upgrade for a prebuilt, giving 7790 to 7850 level performance without having to upgrade the psu. Granted you could already do that with a 7750, but this makes 1080p gaming at decent settings viable for most every title, while 7750 was kind of marginal.

I see the manufacturers are doing the same thing with the 750Ti though, recommending a 400 watt power supply, while the nVidia site clearly states 300 watts.

I also saw one highly overclocked version with a 6 pin connector. I dont quite understand this. Does the manufacturer add this, or is it built in from nVidia and just not used for most cards?
 

cbn

Lifer
Mar 27, 2009
12,968
221
106
I see the manufacturers are doing the same thing with the 750Ti though, recommending a 400 watt power supply, while the nVidia site clearly states 300 watts.

I just checked and yep, they are doing just that (recommmending 400 watts plus).

Example:

http://www.newegg.com/Product/Produc...82E16814487027

"400 watt or greater power supply with a minimum of 20 amps on the +12 volt rail."

That is too bad, because I wouldn't be surprised to find out nearly every modern 300 watt PSU from in a OEM Pre-built desktop (Dell, Lenovo, Gateway, HP, etc) has at least 20 amps on the +12 volt......... but I guess there are a lot of suspect aftermarket power supplies so we have to keep seeing these excessive power requirements to cover for a worst case scenario installation.
 

Arkaign

Lifer
Oct 27, 2006
20,736
1,377
126
Exactly. I have said this before, I see the 750Ti as a great upgrade for a prebuilt, giving 7790 to 7850 level performance without having to upgrade the psu. Granted you could already do that with a 7750, but this makes 1080p gaming at decent settings viable for most every title, while 7750 was kind of marginal.

I see the manufacturers are doing the same thing with the 750Ti though, recommending a 400 watt power supply, while the nVidia site clearly states 300 watts.

I also saw one highly overclocked version with a 6 pin connector. I dont quite understand this. Does the manufacturer add this, or is it built in from nVidia and just not used for most cards?

The 750ti also looks to OC really well :

http://www.bit-tech.net/hardware/graphics/2014/02/18/nvidia-geforce-gtx-750-ti-review/11

And not use much power for what it does :

http://www.bit-tech.net/hardware/graphics/2014/02/18/nvidia-geforce-gtx-750-ti-review/10
 

2is

Diamond Member
Apr 8, 2012
4,281
131
106
I think the console hardware is about the best compromise they could come up with.
Amd's big core apus use too much power, while an Intel solution would have required a discrete card.

The only problem I have with the consoles is that they were very over hyped during the development phase. Realistically, they are low/mid range hardware at a good price that give midrange performance because of less overhead than a PC. Note: I an talking about ps4. Xbone missed the mark, IMO performance wise.

Pretty much this... AMD's APU combined with their heterogeneous computing made perfect sense from a price/performance aspect. While "hUMA" certainly isn't the holy grail that AMD and console fans would like to believe, it's certainly a technology that allows them to do more with less.
 

el etro

Golden Member
Jul 21, 2013
1,581
14
81
About the 750Ti slide: GT640 don't even consumes 65w. 60w is the average gaming consumption of GTX 750Ti, not TDP.
 
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