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Possible Radeon 390X / 390 and 380X Spec / Benchmark (do not hotlink images!!!!!!)

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You're all forgetting that HBM completely rewrites the equation, it's not just memory bandwidth that changes. You claw back a few dozen watts, PCB complexity & area, latency (50% more responsive) and all of this enables new design choices.
 
Orangey said:
You're all forgetting that HBM completely rewrites the equation, it's not just memory bandwidth that changes. You claw back a few dozen watts, PCB complexity & area, latency (50% more responsive) and all of this enables new design choices.
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Yup, your right, there are a lot of areas that HBM improve on over the previous GDDR tech.

But caution is advised, as only a fool would think that AMD will get the max out of all of these areas, first time out the gate. (not that I'm suggesting you are a fool Orangey :))
 
Orangey said:
You're all forgetting that HBM completely rewrites the equation, it's not just memory bandwidth that changes. You claw back a few dozen watts, PCB complexity & area, latency (50% more responsive) and all of this enables new design choices.
Click to expand...

Ahem.. All?

Boomstick777 said:
It's not just that the bandwidth is massively massively increased, but that it also allows for higher capacity of memory. Lower power consumption and smaller designs.

It's a massive step forward, the extra power headroom allows for power to be used elsewhere (More shaders) while maintaining target TDP. The increased bandwidth means those extra shaders won't be held back.

This is a significant step, the biggest change in GPU architecture in sometime. The future baby :D
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Boomstick777 said:
Right but it is a big upgrade in terms of performance, it's twice as fast !

Your missing what I'm saying just having HBM brings other improvements, your getting the extra bandwidth right. Double the Bandwidth with HBM Gen 1.

2 X current bandwidth. (Big increase).

Forget that a sec, the reduced power consumption from having HBM can be spent elsewhere within the same TDP, so alongside the bandwidth just having HBM allows more shaders / transistors to be added.

So your not just getting twice the bandwidth on gen1 but other improvements as well.

Yeah it's a big upgrade, gen 1 is just the start.
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....
 
http://www.powercolor.com/event/comingsoon_2015/index.htm

https://www.facebook.com/PowerColor.Europe

powercolor.jpg



The AIB partners are getting ready...
 
Orangey said:
Here's an interesting post by raghu about why he thinks 380/X will be a new HBM design:

http://forums.anandtech.com/showpost.php?p=37408809&postcount=528

I suspected that 380 series would be 2nd level salvage, but a whole new chip would be great for midrange buyers too.
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Well that sounds just as feasible as a lot of the other rumours.

I did like this bit.

Fundamentally I think the reason for AMD to take so much effort in flushing the channel and take roughly 2-3 quarters to clear existing channel inventory is that the R9 3xx GPU stack is an all new GPU stack with significant architectural improvements over Hawaii and even further improvements over Tonga.
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Now myself I think they have been trying to clear the 290/X's from the channel because once the Hawaii chips are rebranded with a minor speed bump, nobody will buy the new ones at a steeper price if you can get the older ones much cheaper.

Personally I think they will reuse the Hawaii core, for a few reasons.

they are constantly reusing cores because it save a great deal of money, rather than having to design new each cycle.

They have only used the Hawaii core once so far.

If the 380x was going to use HBM then surely the first card to be announced using the all new spangly memory tech would be the flagship one, not the third or fourth tier card. unless of course the flagship card was months behind, but we know it isn't as it is suppose to be shown off only a couple of weeks latter.

But of course either situation could be correct, we will find out on the 3rd if next month.
 
Davedree said:
Quite funny I had to do the same to boom in the kaveri threads, when stating the kaveri gpu would be held back by bandwidth.
;)
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Except Orangey wasn't talking about me, me and him are saying the same things.. That with HBM come other improvements (Aside from Bandwidth). Lower power consumption, smaller size. Higher memory capacity.

I'm not sure what your referring to with Kaveri, but it's well known it's hamstrung by memory. HBM could also be the solution there as well, but we won't until 2017 lol.
 
Boomstick777 said:
Except Orangey wasn't talking about me, me and him are saying the same things.. That with HBM come other improvements (Aside from Bandwidth). Lower power consumption, smaller size. Higher memory capacity worse cooling.

I'm not sure what your referring to with Kaveri, but it's well known it's hamstrung by memory. HBM could also be the solution there as well, but we won't until 2017 lol.
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Fixed.:D:p

I wish people would wait until the cards arrive before making up their minds.

I am sure HBM will be full of surprises, not all of them good.:)
 
A small Bandwidth test:

AVP Benchmark

*DX11 Hardware Detected*

Using Default Video Settings:

Resolution: 1920 x 1080
Texture Quality: 2
Shadow Quality: 3
Anisotropic Filtering: 16
SSAO: ON
Vertical Sync: OFF
DX11 Tessellation: ON
DX11 Advanced Shadows: ON
DX11 MSAA Samples: 1

R9 290 @ 1000/1250
Average FPS: 133.3

@ 650/675 <<<< 675 was as low as i could get the Memory
Average FPS: 81.8

@ 650/1250
Average FPS: 96.8

result @ +85% = +18% in real terms.
 
Kaapstad said:
Fixed.:D:p

I wish people would wait until the cards arrive before making up their minds.

I am sure HBM will be full of surprises, not all of them good.:)
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Lol, yeah be interesting to see how hot these things run and what air coolers from other vendors will be like.

If the top end AMD card doesn't run the Witcher 3 any better than Titan X it'll be a non starter for me.

I'll be playing this game probably for the next year and beyond so may have to stick with Nvidia if they still have the edge over the 3XX series.
 
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