trying to flash rx480 to rx580

[Imperator]

BTW, as @eidairaman1 said earlier, i would add at least one more good cooler in your pc case, cause you will need better air flow.
I do not remember if your card have all memory chips covered by thermal pads.
At Asus there are several model and XFX 470 also have some models w/o thermal pads on all memory chips.
Since you modded now your card , you will get higher temps.
So be careful.
Below you can see what i mean :

 

[Athlonite]

Yup when I did this to my Sapphire Nitro+ RX480 8GB OC card all I could get out of it was 1395MHz Core so it seems even though they were the same chip I suspect the the Actual Sapphire Nitro+ RX580 gpus used much better binned dies than the normal RX480's hence why they could do 1500+ MHz on the core at roughly the same Voltage as the RX480's shite 1395MHz

albeit I did get 3~4 years out of it before it just up and died without even a goodbye or a thanks for all the fish

 

[watzupken]

Yup when I did this to my Sapphire Nitro+ RX480 8GB OC card all I could get out of it was 1395MHz Core so it seems even though they were the same chip I suspect the the Actual Sapphire Nitro+ RX580 gpus used much better binned dies than the normal RX480's hence why they could do 1500+ MHz on the core at roughly the same Voltage as the RX480's shite 1395MHz

albeit I did get 3~4 years out of it before it just up and died without even a goodbye or a thanks for all the fish

It is true the RX 580 runs at a higher clock speed. But truth to be told, that 100 MHz or so is not going to help much in games. There is barely any need to overclock CPU or GPU nowadays because the improvement is generally not tangible. If the RX480 can’t run certain games properly in the first place, that slight increase in clock speed is not going to miraculously make it run 20% faster for example. You probably see single digit % increase in frame rate. One is better off just using FSR at the highest quality settings instead to claw back performance.

 

[eidairaman1]

Yup when I did this to my Sapphire Nitro+ RX480 8GB OC card all I could get out of it was 1395MHz Core so it seems even though they were the same chip I suspect the the Actual Sapphire Nitro+ RX580 gpus used much better binned dies than the normal RX480's hence why they could do 1500+ MHz on the core at roughly the same Voltage as the RX480's shite 1395MHz

albeit I did get 3~4 years out of it before it just up and died without even a goodbye or a thanks for all the fish

RX 580s are Polaris 20 or 30 dies,they have been refined.

It is true the RX 580 runs at a higher clock speed. But truth to be told, that 100 MHz or so is not going to help much in games. There is barely any need to overclock CPU or GPU nowadays because the improvement is generally not tangible. If the RX480 can’t run certain games properly in the first place, that slight increase in clock speed is not going to miraculously make it run 20% faster for example. You probably see single digit % increase in frame rate. One is better off just using FSR at the highest quality settings instead to claw back performance.

Overclocking is to squeeze free performance out, ofc it needs cooling on gpu and ram to remain stable.