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Forums - Gaming Discussion - Wii U vs PS4 vs Xbox One FULL SPECS (January 24, 2014)

Viper1 on 24 July 2012
superchunk said:
Viper1 said:

That's still likely but what I'm pointing out isn't about the cost of those chips but how meat heat they generate.   While the CELL was expensive, it didn't run all that hot comapred to a high end GPU.   Look at the difference in the GPU between the PS3 and  the rumors for PS4.

PS3 GPU - 70 watts.
HD 7970 - 250 watts
HD 7950 - 200 watts (entire PS3 at launch was 200 watts)

The ability to dissipate heat hasn't advanced much so there just isn't any way possible for them to include a GPU that runs that hot.

Makes sense. However, the point of the rumor isn't that it will be a standalone GPU but part of an APU that is intended for high-end laptops.

However, it will likely have a lower-end 7xxx GPU than the 79xx. Probably almost entirely due to heat.

See, you couldn't even make the HD 7970/7950 as part of an APU.  Chips are too big and hot for that.  Those APU's won't use a GPU base with anything higher than a 60-70 watt GPU.  Otherwise, you'd need a CPU cooler the size of you computer monitor just to keep it cool.



The rEVOLution is not being televised

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superchunk on 24 July 2012
Viper1 said:

See, you couldn't even make the HD 7970/7950 as part of an APU.  Chips are too big and hot for that.  Those APU's won't use a GPU base with anything higher than a 60-70 watt GPU.  Otherwise, you'd need a CPU cooler the size of you computer monitor just to keep it cool.

Which GPU base do you think steamroller will have? Consider better manufacturer process and reduction in current heat/power use an obvious.



superchunk on 24 July 2012
Gilgamesh said:

HDD for the PS4 will likely be 500GB+ I doubt they would release the PS4 with less HDD space then the PS3.


Probably. The point is just to illustrate that they will have a large HDD option.



zarx on 25 July 2012
Viper1 said:
zarx said:
Viper1 said:
Any rumor with an HD 79xx based GPU can be thrown in the trash as the author obviously made it up.

An HD 79xx GPU is far too big (die size), too hot (200+ watts) and too expensive to even be considered.

A rumor is one thing but an HD 79xx rumor is just someone trying to get his to his website.


The rumour didn't actually say a 79XX GPU though, It said "AMD R10x series (presumably the source is from before AMD dropped the R*** naming for graphics cores) GPU @ 800 MHz (Tahiti) 1.84 TFlops and 18 Compute Units" Superchuck just assumed that Tahiti referred to the HD 79XX series GPUs. But the HD 7950 which is at 800MHz is 2.8 TFlops and 28 Compute Units (A compute unit for GCN is 64 Stream processors + a scalar coprocessor) which is just a 7970 downclocked with 4 Compute Units disabled for yeilds.

It would seem to me that while the rumoured GPU shares a codename with the high end 79XX GPUs it is not the same die at all and is actually clearly much smaller. It's likely closer to a Pitcairn GPU, and probably a bit smaller than that as the 7870 has 20 compute units.

Given that they haven't used the "R***" codenames since 2008 and the rumor came well after 2008, that raises the dubious meter to full tilt right there.

And that last time was the R700 (HD 4xxx) line.  Can you imagine a rumor claiming to use a GPU 3 generations up?

And even if it were only 18 computer units, it is claiming to be a Tahiti die which wouldn't make any sense to have that much wasted silicon taking up space.  Almost half of your 352mm2 isn't even being used.   May as well just use a Pitcairn and drop clocks.


Actually they did refer to Evergreen as R800 up until launch, also the R1k has been in development since 2007 http://www.theinq.com/default.aspx?article=42297. But the assumption that it predates the name change is mine, it could well be that they still use the RXXXX internally or it was made up by the article writer, many people still refer to the new AMD GPU architectures by the R number even if AMD don't publically, the Beyond 3D rumour and speculation threads, and the first acurate leaks of Tahiti GPUs  http://www.3dcenter.org/news/2011-11-28.

And it doesn't actualy claim it's a Tahiti die, it said "this is code-named "Tahiti."" Not "this is a Tahiti die" or "it is based on the HD 7970". 

It is quite possibly bullshit, but I still don't think it ever suggested a HD 79X0 GPU, in fact the specs provided don't match any existing GPU so suggest that it is a custom chip that happens to share a codename with the HD 79X0 and is bassed on the R1000/Southern Islands/GCN architecture. 



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Cobretti2 on 25 July 2012

I HATE WHEN PEOPLE GET BANNED AND YOU CAN'T SEE THEIR POST AAAAAAAARRRRRRRRRRRRRRRRR



 

 

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SnesTea on 25 July 2012
Cobretti2 said:
I HATE WHEN PEOPLE GET BANNED AND YOU CAN'T SEE THEIR POST AAAAAAAARRRRRRRRRRRRRRRRR

QFT.



superchunk on 28 July 2012

ok I'm back so OP is view-able. :)



JGarret on 28 July 2012
superchunk said:
ok I'm back so OP is view-able. :)


Why were you banned?



Viper1 on 28 July 2012

Welcome back.

I had another thought. Some of the Wii U information has been confirmed. Perhaps you can put confirmed information in bold or a different font color. That way we can easily discern rumor from fact.

Keep up the good work.



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superchunk on 28 July 2012
Viper1 said:
Welcome back.

I had another thought. Some of the Wii U information has been confirmed. Perhaps you can put confirmed information in bold or a different font color. That way we can easily discern rumor from fact.

Keep up the good work.

Not a bad idea.