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Member Since 04 Sep 2009
Offline Last Active Sep 06 2016 04:30 AM

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In Topic: AMD Polaris IDs on Sierra / High Sierra

04 September 2016 - 11:55 AM

They both are Polaris 10 graphics cards - Maybe people with RX470 graphics cards (4096 MiB) could be able to flash them with RX480 4096MiB models graphics cards bios?  :yes:


There is no RX480 with 4096MiB. AMD promised to release first Polaris 10-Cards in Q2/16 and a Polaris 10 based card for less then 200$ - but the regular RX 480 8192MiB card would be too expansiv and there was no time left to ramp up RX 480 4096MiB production. So they decided to cut some 8192MiB cards simply by BIOS into 4096 cards. If you have a 4096 card of the first batch, you're able to unlock it to a regular 8192 MiB card by flashing the correct BIOS.


But using the RX 480 BIOS on a RX 470 is much riskier, because the 470 isn't only cut in case of execution units/shaders but there are also different VRAM-chips used. RX 480 clocks it's VRAM with 4 GHz, while the RX 470 uses 3,5GHz. So there is a fair chance to get graphic glitches with the 480 BIOS... 

In Topic: AMD Polaris IDs on Sierra / High Sierra

06 July 2016 - 09:19 PM

With DP2 output is working on all three DPs and the HDMI-Port, but no acceleration for 0x67DF1002. Adding DeviceID to Baffin-Family IOMatch does the trick für Fiji (aka Fury) but not for RX 480. 

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