Personal computing discussed
Moderators: renee, morphine, SecretSquirrel
Chrispy_ wrote:Not particularly interested, I'm afraid.
The RX580 gobbles down 35W more power for a paltry 3% performance boost. It would appear that the 480 is overvolted to the point of throttling under full load without increased power targets, and the RX580 makes this worse. You're much better off spending ten minutes playing with the voltages in Wattman to see how low you can go, since an undervolted 480 or 580 will spend more time at it's max boost clock.
If the default voltage is 1160mv at 1266MHz and you can get all the way down to, say 1025mv before it locks up and resets the driver, then you can probably run 1333MHz at 1100mv or something because there is so much power budget released by reducing the voltage.
TwistedKestrel wrote:so does that nullify 480s "advantage"?
DPete27 wrote:TwistedKestrel wrote:so does that nullify 480s "advantage"?
PS, before the RX580 launch I lobbied TR to do some investigation into the RX480 vs RX580 frequency/voltage relationships using manual voltage adjustments. That's still something that nobody else has really exclusively covered and it would've given TR quite a bit of publicity. Instead, we have to go elsewhere to see the important aspects of this launch. /vent
Chrispy_ wrote:If the default voltage is 1160mv at 1266MHz and you can get all the way down to, say 1025mv before it locks up and resets the driver, then you can probably run 1333MHz at 1100mv or something because there is so much power budget released by reducing the voltage.
biffzinker wrote:been messing around with the Sapphire 580 BIOS [on my XFX card], and I can go up to 1400 MHz at 1.190 mV.
Chrispy_ wrote:Does [XFX RX480 RS] have an 8-pin or a 6-pin connector?
Flashing the Sapphire RX 580 BIOS removes those restrictions but how long will the VRM section survive those spikes to 250 or above watts?
End User wrote:I'm not flashing mine. Waiting to see what Vega brings us.
chuckula wrote:You see, this one goes to 580.
All the other blokes are stuck at 480 and where are they going from there?
Couldn't you just overvolt a 480 and give it a clock bump to be a 580?
But this one goes to 580.
End User wrote:I'm not flashing mine. Waiting to see what Vega brings us.
Chrispy_ wrote:I picked up a Sapphire Nitro+ 580 today. Going to see how fast it'll run on 1.0V when I have some free time on Sunday.
DPete27 wrote:Pretty good freq/voltage you've got also. Thanks.
DPete27 wrote:Chrispy_ wrote:I picked up a Sapphire Nitro+ 580 today. Going to see how fast it'll run on 1.0V when I have some free time on Sunday.
Bump. Chrispy, did you get time to do any testing over the weekend?