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[Reddit] RX 480 fails PCI-E specification - Page 48  

post #471 of 1129
Quote:
Originally Posted by magnek View Post

I understood what you're trying to say. What I'm saying is, ignoring efficiency for a moment, 480 gives us an idea of how a 2304 shader 32 ROP Polaris card will perform. Assuming Vega is literally double the P10 chip, then it will likely end up around 10% faster than stock 1080, assuming it can keep the same clocks.

I suppose I'm just not prepared to presuppose a 1:1 transition.
     
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post #472 of 1129
Testing each card seperately., Intergrated Sound on rampage IV doesn't work. Ports don't exist anymore apparently. Sound does play from each card though to my dell monitor. Looks like MB is sound cardless now. Submitting XFX ticket

(And yes, The extra 6 Pin is plugged into the MB for power)
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post #473 of 1129
Quote:
Originally Posted by magnek View Post

Vega is also supposed to come with HBM2, so it will be inherently more expensive to produce than GP104. All nVidia has to do is lower 1080's price to $550 and AMD will be in a very bad situation.
I understood what you're trying to say. What I'm saying is, ignoring efficiency for a moment, 480 gives us an idea of how a 2304 shader 32 ROP Polaris card will perform. Assuming Vega is literally double the P10 chip, then it will likely end up around 10% faster than stock 1080, assuming it can keep the same clocks.
Vega will likely have better perf/watt because of using HBM2.

What will determine Vega's performance will be based on the bottlenecks affecting Polaris. From the get-go once can assume that an up to 30% boost in memory bandwidth due to Color compression algorithms found in Polaris (256GB/s) over Hawaii is not really the same as a 512-bit bit GDDR5 bus delivering 384GB/s of bandwidth.

Considering Hawaii was memory bandwidth starved then we can assume that Polaris is also memory bandwidth starved. To what extent? I am not sure we can know this due to the fact that Polaris is pretty much maxed out at 8Gbps memory controller wise. We will have to wait for Vega in order to find out.

We also know that ROPs are likely holding Polaris back. A move from 32 to 64 ROPs would only double the pixel fillrate which does not seem to be enough to really make a dent in the lead currently enjoyed by Pascal (especially considering the fact that a GTX 1080 Ti would likely move to 96 ROPs).

If AMD are not looking towards at least 96 ROPs (which now appears to be unlikely) then we should see the first Vega (490/490x) cards competing nicely with the GTX 1080 and 1070 but we likely will not see any Fury-like competition from AMD.

If memory bandwidth is what is holding Polaris back then Vega (which around 4 times the bandwidth) could deliver more than 2x the performance of a RX 480. That is IF (since some people tend to overlook my use of conditional statements).
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post #474 of 1129
I am pretty sure that my 7970's pulls more than 75 watts from the PCIE slot as they are each running over 1.280v, I am not sure why this is news. I have had some pretty crap motherboards with my crossfire setup and never had any issues. This does not seem like much news, but what do I know.
    
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post #475 of 1129
I'm thinking that part of Polaris 10 being cheap is someone else paid for the R&D.

There could be some truth to what @Oj010 was saying (validation above 850Mhz). Polaris 10 wasn't ground up design for desktop, but was rather a....dual (triple) purpose - PS4 Neo, mobile which was later fitted for desktop.

If True Audio Next turns out to be in PS4, that would confirm things (for me).
post #476 of 1129
Quote:
Originally Posted by Cubeman View Post

Testing each card seperately., Intergrated Sound on rampage IV doesn't work. Ports don't exist anymore apparently. Sound does play from each card though to my dell monitor. Looks like MB is sound cardless now. Submitting XFX ticket

(And yes, The extra 6 Pin is plugged into the MB for power)

Have you tried just reinstalling the audio drivers by chance or check to see if the playback device got changed?

I would honestly be surprised if XFX did anything about this.
 
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post #477 of 1129
Quote:
Originally Posted by nagle3092 View Post

Have you tried just reinstalling the audio drivers by chance or check to see if the playback device got changed?

I would honestly be surprised if XFX did anything about this.

Did both, First thing I did out of all of it was reinstall audio drivers. Then checked default playback in-which now the soundcard reports the only ports are the RL,RR and Center as well as the front speaker port but doesn't function when playing audio or test function.

It doesn't hurt to ask, But this was a $400 dollar motherboard at the time that was just crippled. The crossfire solution worked flawlessly playing GTA V all day, it wasn't until this card was added and it started getting used it occured.
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post #478 of 1129
Quote:
Originally Posted by magnek View Post

Vega is also supposed to come with HBM2, so it will be inherently more expensive to produce than GP104. All nVidia has to do is lower 1080's price to $550 and AMD will be in a very bad situation.
I understood what you're trying to say. What I'm saying is, ignoring efficiency for a moment, 480 gives us an idea of how a 2304 shader 32 ROP Polaris card will perform. Assuming Vega is literally double the P10 chip, then it will likely end up around 10% faster than stock 1080, assuming it can keep the same clocks.
Vega will likely have better perf/watt because of using HBM2.
Quote:
Originally Posted by Cubeman View Post

Did both, First thing I did out of all of it was reinstall audio drivers. Then checked default playback in-which now the soundcard reports the only ports are the RL,RR and Center as well as the front speaker port but doesn't function when playing audio or test function.

It doesn't hurt to ask, But this was a $400 dollar motherboard at the time that was just crippled. The crossfire solution worked flawlessly playing GTA V all day, it wasn't until this card was added and it started getting used it occured.

Yeah... I have had the same issues from multiple folks regarding the onboard realtek (re-branded as Soundblaster X-Fi stuff) on Asus Rampage motherboards dying out. Often times the system would simply freeze up and upon reboot the audio would be gone.

That is actually quite common an issue. It could be a correlation (not a causation) with regards to the RX 480.
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post #479 of 1129
Quote:
Originally Posted by C2H5OH View Post

I'm thinking that part of Polaris 10 being cheap is someone else paid for the R&D.

There could be some truth to what @Oj010 was saying (validation above 850Mhz). Polaris 10 wasn't ground up design for desktop, but was rather a....dual (triple) purpose - PS4 Neo, mobile which was later fitted for desktop.

If True Audio Next turns out to be in PS4, that would confirm things (for me).

I'm not hyping (not at all) but that would partially explain IP8 and why Vega was delayed (or rather why Mid- tier was first).
post #480 of 1129
One more thing, if this chip is consuming above 150w for 5.8tflops than what the heck will happen to 6tflops xbox scorpio or w/e is called ? how do they won 3 console designs and all apple contracts ?
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