The 7950 and 280's TDP is 200 Watts, TDP is not power consumption, however the 7950 and 280 do use 200 Watts.
So Tonga would be pushing about a 25% efficiency improvement.
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AMD Radeon R9 285 with Tonga GPU pictured
- Thread starter Boomstick777
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The 7950 and 280's TDP is 200 Watts, TDP is not power consumption, however the 7950 and 280 do use 200 Watts.
So Tonga would be pushing about a 25% efficiency improvement.
Caporegime
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I don't know if I should be disappointed anymore.
I have no idea whether these are fake or not but Direct X being missing is weird?
Direct X is no where to be seen on the box, since when was which version of DX the GPU is compatible with has ever been left off a GPU box?
Guy at OCN posted things like,
...
Looking forward to some actual reviews
Trust me, these pics are not fake. In fact, HIS already asked me to remove them.
fudz are saying the 285 is a straight swap for the 280. Same perf, same price.
http://fudzilla.com/home/item/35490-upcoming-amd-radeon-r9-285-packs-1792-stream-processors
http://fudzilla.com/home/item/35490-upcoming-amd-radeon-r9-285-packs-1792-stream-processors
Caporegime
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Everyone knew this, it's a more efficient core so smaller die size and higher margins for the same performance level. It's what you do when you make a new core on the same process. You have to go significantly bigger to beat it on performance well, matching it and increasing margins 10-15% is what most new versions will do. 750ti was about bringing that 660 performance in a smaller core they can get higher margins in. Also about testing out a new architecture before a move to a new process. Intel's tick/tock, new arch and new process is much more difficult.
Also, I'm truly shocked that a new core 18+ months after the first GCN 1.1 core taped out...... isn't GCN 1.0 and just Tahiti... I almost can't believe it.
If you recall, there was speculation that the 285 could be either a direct replacement for the 280, or somewhere between the 280 and the 280X, or better than the 280X.
Pretty much all of those suggestions are in this very thread
It seems like a very disappointing release now. Oh well, hopefully nV's maxwell will offer something better.
Caporegime
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All of those options make it a replacement for Tahiti regardless. We still don't know performance, even with the same shaders it could be faster, or slower, depending on tdp target/clock speeds.
When you stop making core A and start making core B for that segment it doesn't matter if it's 15% slower, or 20% faster, or anything in between. A company stops making one part and starts selling another part in that segment then that is it's replacement. I would be very surprised to not see a 285x/285, one with a few more shaders and 5-10% faster.
I've seen nothing official to suggest 150W either, if a slightly cut down and fairly low memory speed Firepro is 150W then I'd expect a fully enabled part with potentially higher speeds on memory to be anything up to 170W.
Tahiti is a core and was used in multiple products, I have no idea why people think Tonga will be used for a single core on the desktop... it almost never happens outside of a smaller test product that fits tightly between existing products(4770, 7790). We have a 290x and 290, we have a 750ti and 750. The 280/280x will be discontinued, a new core will be made and they'll have cut down parts. Unless there is epic yields and enough demand for the few cut down parts to go into Firepro's, there will almost certainly be a 285x and a 285 and being a bit above or below the previous cards doesn't make any difference to the fact this was a replacement updated core. Almost certainly somewhere between 250-300mm^2 leaving AMD with 20+ % more cores per wafer, improving margins for AMD.
If they end up a tad faster I'd expect the same price, maybe a marginal bump. 280/280x's aren't expensive and offer good value as is.
When you stop making core A and start making core B for that segment it doesn't matter if it's 15% slower, or 20% faster, or anything in between. A company stops making one part and starts selling another part in that segment then that is it's replacement. I would be very surprised to not see a 285x/285, one with a few more shaders and 5-10% faster.
I've seen nothing official to suggest 150W either, if a slightly cut down and fairly low memory speed Firepro is 150W then I'd expect a fully enabled part with potentially higher speeds on memory to be anything up to 170W.
Tahiti is a core and was used in multiple products, I have no idea why people think Tonga will be used for a single core on the desktop... it almost never happens outside of a smaller test product that fits tightly between existing products(4770, 7790). We have a 290x and 290, we have a 750ti and 750. The 280/280x will be discontinued, a new core will be made and they'll have cut down parts. Unless there is epic yields and enough demand for the few cut down parts to go into Firepro's, there will almost certainly be a 285x and a 285 and being a bit above or below the previous cards doesn't make any difference to the fact this was a replacement updated core. Almost certainly somewhere between 250-300mm^2 leaving AMD with 20+ % more cores per wafer, improving margins for AMD.
If they end up a tad faster I'd expect the same price, maybe a marginal bump. 280/280x's aren't expensive and offer good value as is.
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What do you know? They got it wrong previously...again. Don't be surprised.
Someone asked in one of the comments on fudz... how likely is it that Tonga Pro could be 256-bit and Tonga XT 384-bit? Which seemed like a good question... anyone want to answer that?
I don't trust most of the stuff from these sites to be honest.
Nv did that with one of their higher end cores, details elude me. Whether for performance differentiation in the product stack and/or to salvage parts I have no idea.
Edit: Curiosity got the better of me so I had to find out if my brain was playing tricks. So while a drop of 64 in bus width is common, a larger 128bit drop happened with the GF100 GTX465 (256bit) and GTX480 (384bit). http://en.wikipedia.org/wiki/List_of_Nvidia_graphics_processing_units#GeForce_400_Series
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That fully enabled 'Tonga' GPU looks suspiciously like the HD 7970 / R9 280X.. Hmm..
Radeon R9 285 will feature 1792 stream processors just like HD 7950 / R9 280..
Radeon R9 285X will feature 2048 stream processors just like HD 7970 / R9 280X..
Are we sure this isn't just a rebrand with a few new features tacked on? Maybe 20nm? If so this has to be some kind of record for rebranded GPU's!?
Radeon R9 285 will feature 1792 stream processors just like HD 7950 / R9 280..
Radeon R9 285X will feature 2048 stream processors just like HD 7970 / R9 280X..
Are we sure this isn't just a rebrand with a few new features tacked on? Maybe 20nm? If so this has to be some kind of record for rebranded GPU's!?
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Its not a rebranded GPU, You missed out 8 Ace units vs 2 and 4 Triangles per clock rate vs 2 (2 on Tahiti and Pitcairn I think) those are Hawaii Specifications, not Tahiti, and by the looks of it with some power efficiency improvements even over Hawaii.
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lol..... without rumours, what would we do with ourselves? stop strangling eachother and get on with IRL stuff?
That would make for a dull forum
lol..... without rumours, what would we do with ourselves? stop strangling eachother and get on with IRL stuff?
That would make for a dull forum
I have nothing against these cards but I want the bigger cards info
I have had these Titans now for too long and need something else to play with.
lol..... without rumours, what would we do with ourselves? stop strangling eachother and get on with IRL stuff?
That would make for a dull forum
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Ty, so this is more like a cut down Hawaii part? That's good to know, couldn't stomach anymore re-brands from either AMD or Nvidia
So with Maxwell 870/880 and Tonga, the 290X and GTX 780Ti will still be the fastest cards... Wonder when 295X or 390X will surface? Been a boring or maybe a better word is slow couple of years to be honest, the full Kepler parts took ages to surface, 290X is getting on a bit now.. I want to see some new high end stuff
lol..... without rumours, what would we do with ourselves? stop strangling eachother and get on with IRL stuff?
That would make for a dull forum
Ha, tis true, rumors and conjecture are part of the interest
Also I'm with Gregster in thinking would be nice to get some legit info on when we can expect the higher end stuff..