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[OC3D] RX480 power bottleneck?

post #1 of 55
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post #2 of 55
Its pretty worrying that the only thing keeping the already meh perf/watt at the current level is a restrictive BIOS limit. I bet once people seriously begin to overclock on AIB boards this card is going to go 200w+, which is going to be difficult to cool from a 232mm2 die.
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post #3 of 55
Quote:
Originally Posted by NuclearPeace View Post

Its pretty worrying that the only thing keeping the already meh perf/watt at the current level is a restrictive BIOS limit. I bet once people seriously begin to overclock on AIB boards this card is going to go 200w+, which is going to be difficult to cool from a 232mm2 die.

It's funny how this is supposed to be the bargain choice, but will seemingly be most interesting with far more power and under a water block. I'm really curious to see what these things can do when cranked to 100.
post #4 of 55
Saw this on anand.

https://www.computerbase.de/2016-06/radeon-rx-480-test/12/#diagramm-mehr-speicherbandbreite-auf-der-rx-480-2560-1440-benchmark-part-3

They undervolted their 480 and gained 4.7% performance in games (on avg I guess). According to the poster on anand the 480 hits the power limit and throttles more with default voltage.
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post #5 of 55
Quote:
Originally Posted by geoxile View Post

Saw this on anand.

https://www.computerbase.de/2016-06/radeon-rx-480-test/12/#diagramm-mehr-speicherbandbreite-auf-der-rx-480-2560-1440-benchmark-part-3

They undervolted their 480 and gained 4.7% performance in games (on avg I guess). According to the poster on anand the 480 hits the power limit and throttles more with default voltage.

When watching the pcper video with raja and Ryan raja said something about undervolting for more performance. Idr exactly what he said tho
post #6 of 55
I won't be buying one of these cards as I have a fury X, but the big Vega card is what I am planning on upgrading to

Based on power and heat from these 480's , it looks like the next Fury will follow in the footsteps from its predecessor e.g water cooled, power hungry and poor overclocking. Not exactly the recipe for success but ill remain optimistic
post #7 of 55
Quote:
Originally Posted by geoxile View Post

Saw this on anand.

https://www.computerbase.de/2016-06/radeon-rx-480-test/12/#diagramm-mehr-speicherbandbreite-auf-der-rx-480-2560-1440-benchmark-part-3

They undervolted their 480 and gained 4.7% performance in games (on avg I guess). According to the poster on anand the 480 hits the power limit and throttles more with default voltage.

They are probably using every fully capable Polaris die that they can use so that they can have high stock.
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post #8 of 55
I'm convinced that this is the source of most of the problems, along with AVFS


It might not be programmed correctly, or there's something that engineers missed, in either case i'm pretty sure the cause is related to this
Edited by Marios145 - 6/30/16 at 7:20pm
post #9 of 55
Quote:
Originally Posted by geoxile View Post

Saw this on anand.

https://www.computerbase.de/2016-06/radeon-rx-480-test/12/#diagramm-mehr-speicherbandbreite-auf-der-rx-480-2560-1440-benchmark-part-3

They undervolted their 480 and gained 4.7% performance in games (on avg I guess). According to the poster on anand the 480 hits the power limit and throttles more with default voltage.
that link shows it has a Bandwidth bottleneck

this one links to the undervolting
https://www.computerbase.de/2016-06/radeon-rx-480-test/12/#abschnitt_viel_potenzial_fuer_undervoltage_bei_der_rx_480
Edited by PontiacGTX - 6/30/16 at 7:28pm
post #10 of 55
when can we expect a non-ref RX480? considering those AIB can get quite sneaky with these things, bypassing it with their tricks features.

and i'm not gonna risk a ref RX480 when its pulling too much current over the PCI-E slot, i'd probably take one which has an 8Pin or 2x6Pin power.
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