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The Polaris RX 480 Owners Thread.

I just used GPU-Z to save my VBIOS, opened it in hex editor and it only says 113-D0090201-X00.ELLESMERE.PCI_EXPRESS.GDDR5...D00902 Polaris10 XT A1 GDDR5 128Mx32 4GB 300e/300m

Either that guy hex edited his ROM or some cards ARE actually 4GB.

I don't feel like taking it out and stripping it to find out.

weVtDXB.jpg
 
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It says A1, so what does that mean for the respins rumour?

For those that don't know: A0 = chip sent for initial testing, A1 = finalised
 
kapp im not up on benching, thats less than 700 quids worth of gpu, how does 480 tri fire stack up in the grand scale of things.

of course you do know your pc will explode when you add the 4th:D
 
old gamer said:
kapp im not up on benching, thats less than 700 quids worth of gpu, how does 480 tri fire stack up in the grand scale of things.

of course you do know your pc will explode when you add the 4th:D
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That score totally destroys a GTX 1080 which costs about the same.

The downside is the above only applies if CF is supported.
 
KonfuciousK said:
Well this was interesting to see, I just checked for fun but apparently the RX 480 is not compatible with Windows 10...

win%2010%20rx%20480.png
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Anyone else tried a clean install and had this problem?
 
Getting worried now.

https://www.twitch.tv/buildzoid/v/75850933

At 53 mins he explains the problems with RX480 and power draw. I haven't watched it just read the TL;DR.

Normal gpu:
-pcie 6 or 8 pin power connector supplies all the power for the vcore (the actual gpu chip on the board)
-pcie slot 12V connector supplies the power for the vram

What amd did with the rx 480:
-they connected 2 out of the 6 power phases that supply the vcore to the pcie slot instead of to the 6 pin connector like they're supposed to.
This means that the gpu chip itself is drawing part of its power from the pcie slot.

THIS is why you see the 'coupling' in power draw, it's because the vcore is drawing from both the 6 pin and the pcie slot. So as the power consumption changes as the load on the gpu chip changes (depending on what's happening in the game) , the power draw on the pcie slot and 6 pin both change. In every single other gpu* the vcore only draws from the 6 or 8 pin connector so the pcie slot power draw is independent.

(*obviously gpus that need a pcie power connector, something like the 750ti draws all its power from the pcie slot and doesn't have a pcie power connector at all)

This is not something that happens by accident. Amd specifically designed the pcb to connect those 2 power phases to the pcie slot. it's not a software bug, it's not an oversight. They traced copper through a pcb layer from the power phases to the pcie slot.

Why they did that? **** knows, the best guess is to try to mask the real power draw of the card maybe.

The only other reason would have been: to be able to draw extra power for the card since they only went with a 6 pin connector instead of an 8 pin like they should.
But that isn't correct for sure, because their 6 pin is actually wired like an 8 pin and is able to draw the same amount of power an 8 pin connector would.

They had plenty of power coming from their "6 pin" (8 pin in disguise) connector but instead hooked up 1/3rd of their vrms to the pcie slot because ¯\_(ツ)_/¯
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I don't think it's possible for them to fix it with a software update other than undervolting/downclocking.

Would OCUK accept a card back that doesn't technically have any faults and works "fine"?

I'm not spending £176 on a card that could kill my mobo or with software updates gives me less than stated performance.
 
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I really wanted to like this card but due to the massive headache of getting games to run has killed my enthusiasm. Looking around I can see I am not alone either and I am genuinely gutted. I have requested to DSR it and I will sit this GPU out.
 
Gregster said:
I really wanted to like this card but due to the massive headache of getting games to run has killed my enthusiasm. Looking around I can see I am not alone either and I am genuinely gutted. I have requested to DSR it and I will sit this GPU out.
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Greg give the Nitro version a shot when its released, Sapphire normally make fantastic cards, which is also ironic as they normally make the reference AMD cards too ;) albeit to AMD's specifications hahah, makes you wonder if the bods at Sapphire sat in a room looked at the design for it and said "What the actual fudge?"
 
SiDeards73 said:
Greg give the Nitro version a shot when its released, Sapphire normally make fantastic cards, which is also ironic as they normally make the reference AMD cards too ;) albeit to AMD's specifications hahah, makes you wonder if the bods at Sapphire sat in a room looked at the design for it and said "What the actual fudge?"
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Maybe but my stress levels at the mo are off the chart. Sapphire are a good name but stable in the Division and a few other games but crashing galore in others doesn't make me want to jump back in that quick.
 
TheLegendOfMart said:
Getting worried now.

https://www.twitch.tv/buildzoid/v/75850933

At 53 mins he explains the problems with RX480 and power draw. I haven't watched it just read the TL;DR.



I don't think it's possible for them to fix it with a software update other than undervolting/downclocking.

Would OCUK accept a card back that doesn't technically have any faults and works "fine"?

I'm not spending £176 on a card that could kill my mobo or with software updates gives me less than stated performance.
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That's really interesting and worrying cause I'm no soldering king and my warranty is a valuable thing to me but it does seem that it's a ticking time-bomb.

I'll see how they software fix it but it's starting to look like it might make sense to trade it in and just get the Nitro even if the actual risk of damage is remote.
 
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