AMD: R9xx Speculation

Very enlightening! Thanks

 

Spoil sports! But not having anyone else noticing it earlier and Damien @hardware.fr doing some synthetic tests I didn't quite believe it was possible. A pity though, would have made the card much better for budget gaming.

 

It actually wouldn't have made any difference to performance. We have tested these types of configurations in the past.

 

In its targeted performance range, certainly not - FPS sink below playable before the extra ROPs could do something. I was thinking from the perspective of - still pending- possible unlocks and doing crossfire, where it could show soem benefit. Otoh, I do remember similar a discussion about ROPs during Barts launch, was it here at B3D? It was something about the extra ROPs being a minor improvement, but still better than adding more shaders, in terms of die area used, do I remember that right?

 

... with some exceptions proving the rule, I guess? Even in worst case, it shouldn't slower than 0,988x the HD 5770 (that's the 10 MHz clock difference).

 

I've just totally lost track of what AMD GPU generation this thread is about. Is R9xx the same as Souther Islands? I'd imagine that Southern Islands is AMD's rival to Nvidia's Kepler family.

 

R9xx = NI = HD6-series

 

Method And System For Multi-Precision Computation
http://www.google.com/patents/about?id=OFJNAQAAEBAJ
might interest some.

 

embarrassing if you can get patents for something so trivial as splitting up multiplications.

 

Not as embarrassing as patenting an 140mm fan for use inside a PSU.

Sorry for OT, but i was really shocked when I recently found out about it

 

PowerColor HD 6970 X2

http://www.tcmagazine.com/tcm/news/...hows-radeon-hd-6970-x2-dual-gpu-card-computex

Triplex HD 6950 X2

http://vr-zone.com/articles/triplex-shows-of-dual-radeon-hd-6950-at-computex/12505.html

PowerColor HD 6870 X2

http://www.tcmagazine.com/tcm/news/...firms-its-radeon-hd-6870-x2-card-coming-month

 

Does this belong to a new thread or here? (since technicly SI is 1xxx, not 9xx)

http://hardforum.com/showthread.php?t=1612784

 

Oh yeah! because AMD only makes graphics cards!!!


(whoops )

 

Well it was posted already to the appropriate thread too, by me (didn't remember it existed)
Of course it could be CPU too or even Llano or something, but it conincides with Fusion Developer Summit or whatever it was, where they've said they'll be showing off "Graphics Core Next"

 

Fudzilla references MyDrivers.com which mentions a HD 6930 coming soon.

HD 6930 (Cayman CE)
1280 SP, 750 MHz, 80 texture units, 32 ROPs
1/2 GB GDDR5, 4.8 GHz, 256-bit bus
≤ 225 W
$180-$200

 

both AMD and NV are flushing chip inventory in prep for their 28nm hardware. get it out of the warehouse before its value plummets. NV has that 560 448 and this looks like AMD's edition of that. They have used this strategy before.

 

How is the performance of this 6930 compared to the 6870 on paper? At a quick glance it doesn't seem that great.

 

I expect it will be 8-10% slower than HD 6950 (Cayman's performance scales more wit clocks than with the number of active SIMDs). I think 5% above HD 6870 seems to be possible.

 

I am very sceptical about the existence of such a card at all.
Even Fudzilla wrote it in their article:

 

I remember ATI (and AMD) launched many analogous models only in Asia or for OEMs. Some products were launched only by a single manufacturing partner, e.g. X800 VE (was it Club3D or PowerColor?), HD 4850 X2 (Sapphire) etc.