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AMD Radeon R9 M295X with Tonga GPU has 32 Compute Units

pgi947 said:
Usually when a flagship gets a refresh its just newer revision chips/bios, the cooling and PCB's are generally left to AIB's. Usually making it a complete nightmare for anyone wanting to watercool in the process.
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not entirely true, there are rumours about new R9 295x with new memory called HBM, that will reduce power consumption, and increase memory bandwith, supposedly AMD will use this to reduce power and boost frequency along with new reference design, so not just a rebranding, coming in the summer.
here is the full article : http://videocardz.com/50472/amd-launch-new-flagship-radeon-graphics-card-summer
 
If the desktop R295X is just a higher clocked/volted 290X then it would be awesome if you can simply install the BIOS on an R290X like you could with the 7950Boost and 7970GHz BIOS :)
 
humbug said:
Another top end 28nm GPU is unlikely IMO.
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On TSMC, yes, not an awful lot to gain, but at GloFo it seems their process is already some 20-30% less power leakage.

Don't forget that shrinking is one major part of a process node drop, the other major part is power reduction. If a chip has twice as many transistors in the same size and no power reduction it would use twice the power. 50% power drop = same power usage for double the transistors.

Now the reason 20nm doesn't sound to good is the power reduction is only set to be around 30% this gen to begin with. So a huge advantage of moving to 20nm at TSMC can potentially be achieved at glofo on 28nm anyway.

The numbers are mostly marketing anyway, at any process node you have the same name but various processes that effectively equate to different sizes. Glofo does 3 types of 28nm, the first was pretty much a 28nm node, the second would be considered more like 25nm and the newest one is considered very similar to 22nm.
 
humbug said:
Another top end 28nm GPU is unlikely IMO.
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it's not that they dont want to, it's just that they can't, nvidia also the 800 series will be 28nm, the bright side is that with all the delay that gpus took, we probably will see FinFet gpu come after 1 or 2 generation of 20nm gpu
 
Freddie1980 said:
Why? If AMD can bring out a faster and more efficient chip then why do you care what process node it uses?
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There seems to be some confusion, this thread started off talking about Tonga (which is a Tahiti replacement) mobile chips with extra speculation about high-binned Hawaii XT chips also being sold as a 295X on desktop.
 
Finally AMD have got their **** together and launched/are launching a new high end mobile GPU. This was really needed when the 780M launched, but better late then never I suppose.

Assuming clock speeds are good this should end up trading places with the fully enabled GK104 880M (given otherwise identical laptop specs). Hopefully AMD will continue to improve their Enduro drivers to keep up the fight with Nvidia's Optimus, they really need too.
 
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