RX 480/470/460 Owners Club

[KainXS]

@KainXS
Did you increase the Power Limit with the Undervolt?
What was your increase in clock speed?

no I did not touch the power limit
I have only overclocked on stock volts to 1400 so far

The fact that they both have the same BIOS revision irritates me, how are we suppose to easily know what BIOS a card is using if they all have the same revision number while not being the same.


You should physically look at what's marked on the VRAM chips. They might actually be rated at 2000MHz and if it's the case they're good for 2250MHz.

I checked the memory in polaris bios editor and its K4G41325FE but I think its the HC28(7000Mhz) and not the HC25(8000Mhz) since it only does 2090Mhz, if it were HC25 it would do 2250.I tried 2100+ and get errors after a hour.(not on the screen though) I have not removed the heatsink to check though.

Immediate results. Power limit now goes to 50% for me!! hello more OC!!

Just make sure you don't run furmark on the RS cards especially when running the power limit high. Flashing the bios of an RS to GTR is also not safe since the PCB is not the same I think.

 

[AntDeek]

I have an RMA card coming, I don't care!!!

 

[cdawall]

Just make sure you don't run furmark on the RS cards especially when running the power limit high. Flashing the bios of an RS to GTR is also not safe since the PCB is not the same I think.

If the flash worked its fine. The PWM section surviving is a different story, doubtful it is an issue on any clock he can hit on air however.

 

[biffzinker]

I have not removed the heatsink to check though.

Just removed the heatsink, cleaned off the flaky compound ( mountain of compound squeezed pass the outer edges of the GPU die outline) and applied a thin layer of MX-4. So far a 10c drop in load temperatures. A couple of the screws weren't even in all the way.

 

[KainXS]

Just removed the heatsink, cleaned off the flaky compound ( mountain of compound squeezed pass the outer edges of the GPU die outline) and applied a thin layer of MX-4. So far a 10c drop in load temperatures. A couple of the screws weren't even in all the way.

I might replace the themal paste later and check but not now, I'm thinking it will drop the temps though too though. Maybe they are the HC25's and just set the timings really tight.(hoping at least)

If the flash worked its fine. The PWM section surviving is a different story, doubtful it is an issue on any clock he can hit on air however.

On any clock on air thats more than likely true(unless the VRM's are extremely bad) .

 

[biffzinker]

Maybe they are the HC25's

I forgot to check what the Samsung chips were on mine. I think I have the same as you @KainXS. I bet the best I can do is 2090 MHz. Right now I have them at 2080, tried 2100 but all I get is flashing random colored orbs when the camera is panned around.

 

[KainXS]

They can't be the same I have a 4gb card, you have a 8gb card. Did you try Hwinfo to check for memory errors after overclocking.

 

[cdawall]

4gb cards have tighter timings than 8gb same ram spec pretty much across the board.

 

[Ungari]

no I did not touch the power limit
I have only overclocked on stock volts to 1400 so far

I'm not talking OC, I'm talking default clocks with undervolt and power limit increase.
I don't quite understand how, but Sapphire Ed says this alone can make the card Boost itself.

 

[cdawall]

I'm not talking OC, I'm talking default clocks with undervolt and power limit increase.
I don't quite understand how, but Sapphire Ed says this alone can make the card Boost itself.

It will actually reach boost clocks that the original reference cards were pushing more heat than the cooler could handle out of the box. They are still only going to hit their max boost clocks, but with the TDP increased and vgpu lowered the card will be able to operate at those boost clocks longer. This is not an issue with almost any aftermarket 480 on the market.

 

[biffzinker]

The best overclock I can get seems to be 1425 MHz for the GPU, and 2090 MHz for the Samsung GDDR5. Sorta of disappointed the Samsung memory doesn't want to overclock as well as I had hoped.

Edit: GPU is hitting 6.4 TFlops at single precision, and 410 GFlops at dual precision. The old 7950 still has the lead for dual precision though.

 

[AlienIsGOD]

i can once again edit OP gonna need names of new ppl so i can add them to the list

 

[P4-630]

i can once again edit OP gonna need names of new ppl so i can add them to the list

You could add a poll like we have in the GTX1070/1080 owners thread and let people choose which card(s) they own.

 

[Outback Bronze]

Anybody have any joy in flashing their RX460 to unlock the shaders etc?

I've got a G1 460 here I would like to try it out on.

Cheers.

 

[Ungari]

The best overclock I can get seems to be 1425 MHz for the GPU, and 2090 MHz for the Samsung GDDR5. Sorta of disappointed the Samsung memory doesn't want to overclock as well as I had hoped.

Edit: GPU is hitting 6.4 TFlops at single precision, and 410 GFlops at dual precision. The old 7950 still has the lead for dual precision though.

If you are getting and maintaining 1425Mhz in Games and not just synthetics without raising the voltage, that is great.

 

[cdawall]

If you are getting and maintaining 1425Mhz in Games and not just synthetics without raising the voltage, that is great.

Mine holds 1430 isn't that normal

 

[Ungari]

I'm waiting for a new processor and chipset before increasing the voltage to see how far I can push it, but the 1426Mhz is maintained under load which is a good indicator of future results.
I'm using GTA V built-in Benchmark Test runs as if it can pass these, it will run anything else stable.

 

[Steve-007UK]

Since getting my sapphire RX480 i have messed around with overclocking and playing many games and doing many benchmarks.

I seen to be stable at 1430/2100 25% power limit in every game i have tried apart from euro truck sim 2 and i am not adding any extra volts.

 

[cdawall]

With the 25% power limit boost is it holding clocks in game? That was what I ran into an issue with on the 1480 mhz clocks I couldn't keep them stable in games (or even benchmarks) the card just throttled back.

 

[biffzinker]

If you are getting and maintaining 1425Mhz in Games and not just synthetics without raising the voltage, that is great.

Seems to be maintaining the boost clock without touching the voltage/power limit. I played some DOOM with Vsync switched to adaptive it was hitting 140-150 FPS without any fluctuation on the boost. Still need to do some more testing.

i can once again edit OP gonna need names of new ppl so i can add them to the list

See post #329.

biffzinker - XFX RS RX 480 | 1288mhz | 2000mhz

 

[AlienIsGOD]

See post #329.

with my 2 kids i dont really have time to go thru previous posts to search out new inclusions

 

[biffzinker]

Tried Unigine Heaven with the extreme preset that resulted in instant driver crash/reset for the GPU at 1425MHz. Had to bump the Power Limit to 20, and dial the GPU clock back to 1395 MHz. Had a couple of memory errors at 2090 MHz was well. Temperature was hovering between 67-70c.

 

[Ungari]

Tried Unigine Heaven with the extreme preset that resulted in instant driver crash/reset for the GPU at 1425MHz. Had to bump the Power Limit to 20, and dial the GPU clock back to 1395 MHz. Had a couple of memory errors at 2090 MHz was well. Temperature was hovering between 67-70c.

Nothing wrong with those temps, is that using the factory fan curve?
So far, I've found that temperatures have not played a role in my OC.

 

[biffzinker]

Nothing wrong with those temps, is that using the factory fan curve?

Yes it's still the factory fan curve, it was pushing the fans to 45-50% to maintain the temperature.

 

[biffzinker]

1390 MHz on the GPU, and 2080 MHz is the best overclock I can get on mine. Heaven crashed/driver reset with the GPU at 1395, and memory had one error at 2085.