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[VideoCardz] AMD Radeon RX 490X Specifications - Page 31

post #301 of 374
Quote:
Originally Posted by epic1337 View Post

would they change plans so soon? its only been a few months after GDC 2016.
furthermore i'd rather believe AMD's slides over some leaked specs that can't be thoroughly confirmed.
Those are not plans but projections. It's all politics, strategy and lawyers, nowadays.
Quote:
Originally Posted by epic1337 View Post

i actually wanna see a scenario like that, dual dies that functions as one, no CF drivers needed.
it should be possible if they design their GPU cores to be modular, e.g. you can strap additional slave units to the main GPU die.
Yep, me too. thumb.gif
post #302 of 374
Quote:
Originally Posted by epic1337 View Post

would they change plans so soon? its only been a few months after GDC 2016.
furthermore i'd rather believe AMD's slides over some leaked specs that can't be thoroughly confirmed.
i actually wanna see a scenario like that, dual dies that functions as one, no CF drivers needed.
it should be possible if they design their GPU cores to be modular, e.g. you can strap additional slave units to the main GPU die.

Raja said at Capsaicin that HBM2 is too expensive for mainstream and they want to launch cards people can afford.
So a Vega launch could be dependent on HBM2 more than anything.
If prices go down and volume is decent I believe a 2016 launch is possible.
post #303 of 374
What AMD showed in the slide is that Vega will be much more energy efficient that Polaris. I wonder how will they do that. Only relying on HBM2, or some architectural tweaks.
post #304 of 374
Quote:
Originally Posted by Serios View Post

Raja said at Capsaicin that HBM2 is too expensive for mainstream and they want to launch cards people can afford.
So a Vega launch could be dependent on HBM2 more than anything.
If prices go down and volume is decent I believe a 2016 launch is possible.

I think people will prefer cheaper gpus with more VRAM. Fury line could be cheaper with 8 gb ddr5.
post #305 of 374
Quote:
Originally Posted by Themisseble View Post

I think people will prefer cheaper gpus with more VRAM. Fury line could be cheaper with 8 gb ddr5.

HBM is what made Fury X possible, whit GDDR5 the card would have run hotter and consume more power.
post #306 of 374
Quote:
Originally Posted by Serios View Post

HBM is what made Fury X possible, whit GDDR5 the card would have run hotter and consume more power.

That is a pretty sad statement given what nVidia has accomplished with GDDR5.
post #307 of 374
Quote:
Originally Posted by Serios View Post

HBM is what made Fury X possible, whit GDDR5 the card would have run hotter and consume more power.

Combined with its tiny size too.
post #308 of 374
Quote:
Originally Posted by Ha-Nocri View Post

What AMD showed in the slide is that Vega will be much more energy efficient that Polaris. I wonder how will they do that. Only relying on HBM2, or some architectural tweaks.
How did Nvidia milk efficiency out of 28nm? Simply update the architecture with a more efficient one. Same thing AMD did with Fiji on 28nm.
post #309 of 374
Quote:
Originally Posted by JackCY View Post

How did Nvidia milk efficiency out of 28nm? Simply update the architecture with a more efficient one. Same thing AMD did with Fiji on 28nm.
amd only got better power consumption with HBM,fiji and tonga arent efficient.the power consumption based on GDDR5 would be over 320w meanwhile having less bandwidth
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post #310 of 374
indeed, there wasn't much architectural shift from hawaii to Fiji/Tonga, they just tweaked it a bit to maximize performance per watt.
of course theres some minor improvements on the architecture itself, but the most improvement came from switching to HBM.
tweaks such as adjusting the ratios between SP:TMU:ROP and driver improvements can only improve so little.


on the other hand, kepler to maxwell has a lot of changes made.
the most notable change is maxwell had gotten rid of dedicated double precision pipelines to save both die space and power consumption.
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