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Is it an RX 480 or RX 580?

Darkroe
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So I recently purchased a new/used (supposedly) RX 580 OEM. When I installed the drivers and checked inside AMD Radeon Settings, everything looked great. Even said it was the 8GB variant instead of the 4GB variant I was promised. SWEET. However, then AMD Radeon Settings recommended I downgrade the driver, so I did. NOW it started showing up as an RX 480 8GB. Not sure what is going on. 

Sidenote: guy who sold me this said he got it from a pre-built DELL, if that has any consequence. 

 

-Darkroe

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9 minutes ago, Darkroe said:

So I recently purchased a new/used (supposedly) RX 580 OEM. When I installed the drivers and checked inside AMD Radeon Settings, everything looked great. Even said it was the 8GB variant instead of the 4GB variant I was promised. SWEET. However, then AMD Radeon Settings recommended I downgrade the driver, so I did. NOW it started showing up as an RX 480 8GB. Not sure what is going on. 

Sidenote: guy who sold me this said he got it from a pre-built DELL, if that has any consequence. 

 

-Darkroe

hmmm maybe bios got flashed? not really sure with amd cards as I dont own one for myself but i am aware that you can flash the bios of the 480 to make it a "580".

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download and run GPU-Z and see what it says

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52 minutes ago, Darkroe said:

So I recently purchased a new/used (supposedly) RX 580 OEM. When I installed the drivers and checked inside AMD Radeon Settings, everything looked great. Even said it was the 8GB variant instead of the 4GB variant I was promised. SWEET. However, then AMD Radeon Settings recommended I downgrade the driver, so I did. NOW it started showing up as an RX 480 8GB. Not sure what is going on. 

Sidenote: guy who sold me this said he got it from a pre-built DELL, if that has any consequence. 

 

-Darkroe

I have used both cards and found no difference in gaming peformance. And actually RX 480 and RX 580 is listed as same card in mining program. And RX 480 is better than RX 580.

 

So don't worry, it should peform the same. If not even better.

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45 minutes ago, Jurrunio said:

download and run GPU-Z and see what it says

heheh....oh boy

We have an interesting event going on.

So I checked GPU-Z for both versions of AMD Radeon Settings I first installed then "upgraded" to: 19.1.1 and 17.4.4.

Guess what? 17.4.4 reads as an RX 480 and 19.1.1 reads as an RX 580. I AM SO CONFUSED. 

 

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check what power connector does it use then, if that's a single 6pin then it is an RX 480. RX 580s at least have 1 8pin and 1 6pin.

 

if not, check the power readings when you run games that stresses it to 95%+ core usage. If it's around 110w then it's an RX 480, if it shoots higher (say 130w or more) then it's an RX 580. RX 480 has 110w vbios power limit but RX 580 has 145w.

 

You can also check with overclock range, at stock power limits reference RX 480 struggle to get past 1400MHz, but RX 580s go past that easily.

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Desktop benching:

Cinebench R15 Single thread:168 Multi-thread: 833 

SuperPi (v1.5 from Techpowerup, PI value output) 16K: 0.100s 1M: 8.255s 32M: 7m 45.93s

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30 minutes ago, Jurrunio said:

check what power connector does it use then, if that's a single 6pin then it is an RX 480. RX 580s at least have 1 8pin and 1 6pin.

 

if not, check the power readings when you run games that stresses it to 95%+ core usage. If it's around 110w then it's an RX 480, if it shoots higher (say 130w or more) then it's an RX 580. RX 480 has 110w vbios power limit but RX 580 has 145w.

 

You can also check with overclock range, at stock power limits reference RX 480 struggle to get past 1400MHz, but RX 580s go past that easily.

Then it is an RX 480 8GB; it has a single 6 pin power connector. The guy who sold it to me didn't lie; Dell is apparently lying. Just found a thread about it. Also, Fire Strike says it is an RX 480 when GPU-Z says it is an RX 580 (when 19.1.1 is installed for AMD Radeon Settings). Still a great card, just wondering why Dell is lying to its customers and why they are getting away with it atm.

 

Thanks for the help guys! Mystery solved: Dell is doing shady things with their pre-builts. Still bought a RX 480 8GB for under $100, so I am still quite content. 

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RX-480 and RX-580 use the same GPU core.

The RX-580 is essentially a "refreshed" RX-480 ... no physical change.

 

As already mentioned, given the power connector, it would be a RX-480.

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  • 2 weeks later...
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On 1/20/2019 at 1:08 AM, -rascal- said:

RX-480 and RX-580 use the same GPU core.

The RX-580 is essentially a "refreshed" RX-480 ... no physical change.

 

As already mentioned, given the power connector, it would be a RX-480.

Actually, according to GPU-Z, we're both right and wrong...somehow. In the 17.4.4 version of Radeon Graphics Settings it lists the GPU in GPU-Z as RX 480 (as I mentioned before). BUT when I click the Lookup button it bring me to a page describing an RX 580 with a 6-pin connector released on June 29th 2016 with similar clocks to the RX 480, AND it says it is a REBRANDED RX 480 that still counts as an RX 580...so it isn't DELL: AMD just made a very confusing product to categorize. Okay then.

 

SO good news: we're all correct! Bad news: It's confusing as hell when GPU-Z says a card is both RX 480 and RX 580...WHY AMD WHY

 

WAHT.PNG

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