AMD Polaris Thread: Radeon RX 480, RX 470 & RX 460 launching June 29th

[antihelten]

Correction.

GM200 also did 20-25%.

35% is a ridiculous level that people who don't understand how boost clocks and OC % work.

Example.

GTX 980, in-game boost clocks on stock = 1,265mhz.

http://www.anandtech.com/show/8526/nvidia-geforce-gtx-980-review/22

If you have a good sample and get 1,500mhz, what's the OC %? ~19%, not this mythical 30-35%.

The same applies to the 980Ti, which even reference cards on stock often boost to 1,200mhz or above. A good OC to 1,500mhz is a 25% OC.

Maxwell is a great overclocker, 20-25% is really good for GPUs.

Both Pitcairn and Tahiti are also excellent over-clockers, with 25-50% (yes, 7950 and 7850 had a 50% OC potential, 800mhz to 1200mhz!)...

Even Hawaii isn't so shabby.

R290 947mhz base, can get to 1.2ghz. Likewise, R290X 1ghz base can reach 1.2ghz.

Only Fiji really sucked, with OC potential that's similar to GP104 actually! Peak of around 10% performance gained.

GM200 was certainly capable of 35%, otherwise how do you explain a 35% gain in performance from overclocking (137.7/102.4=1.345):

 

[3DVagabond]

The unhype train wants 150W typical board power, 390 performance, less than 10% overclock: mostly a mediocre Hawaii die shrink on a weak 14nm process from GF. Looking at the hype train from this perspective, it does seem supersonic.

+1 lol

 

[3DVagabond]

GM200 was certainly capable of 35%, otherwise how do you explain a 35% gain in performance from overclocking (137.7/102.4=1.345):

Were they all run on the same drivers and game build? TPU typically reuses the release day benches forever for the reference units.

 

[Silverforce11]

GM200 was certainly capable of 35%, otherwise how do you explain a 35% gain in performance from overclocking (137.7/102.4=1.345):

Then it means TPU's reference 980Ti is broken and doesn't run above base clocks or they made an error.

Most other review sites you can check it yourself, they boost to around 1.2ghz and OC performance gains are ~20%.

The review I linked from Anandtech, 980 with 1.5ghz OC, performance gains were 15-20% across a range of games.

 

[antihelten]

Were they all run on the same drivers and game build? TPU typically reuses the release day benches forever for the reference units.

The reference 980 Ti numbers aren't release day numbers (they got 101.8 FPS back then), but whether or not it's the same drivers/build as the Matrix card I don't know.

Then it means TPU's reference 980Ti is broken and doesn't run above base clocks or they made an error.

Most other review sites you can check it yourself, they boost to around 1.2ghz and OC performance gains are ~20%.

The review I linked from Anandtech, 980 with 1.5ghz OC, performance gains were 15-20% across a range of games.

No TPUs reference 980 Ti is not broken, they had it boosting to 1.2 GHz as well, with a 1.128 GHz average (Anandtech got a 1.156 GHz average, Computerbase got a 1.113 GHz average, and Hardware.fr got 1.137 GHz average, so TPU is pretty much in the middle here)

Just because some other sites had 980 Ti cards that didn't overclock well, doesn't mean that the GM200 GPU isn't capable of doing 35%. Note that the card I linked to is not your everyday aftermarket card, the ASUS Matrix card is one of the best 980 Ti cards out there (and is priced accordingly).

 

[iiiankiii]

NVM

 

[Silverforce11]

While some of us have expected it, I can confirm (from my buddies in PC retail) that Fiji SKUs like Fury/X are discontinued. Some of the biggest distributors in this region will not receive anymore shipment, and they haven't had any shipment in a long while, so when it's sold out, it's gone. EOL.

No heavy discounted Fury/X to compete with 1070 and 1080. No competition in the mid-range & high-end til Vega.

 

[Silverforce11]

Just because some other sites had 980 Ti cards that didn't overclock well, doesn't mean that the GM200 GPU isn't capable of doing 35%. Note that the card I linked to is not your everyday aftermarket card, the ASUS Matrix card is one of the best 980 Ti cards out there (and is priced accordingly).

Alright, I concede. That one 980Ti did 35%.

Everywhere else, 20-25%. Pretty good OC margins for sure. Though 35% is taking it to epic levels unseen since Pitcairn & Tahiti.

 

[flopper]

While some of us have expected it, I can confirm (from my buddies in PC retail) that Fiji SKUs like Fury/X are discontinued. Some of the biggest distributors in this region will not receive anymore shipment, and they haven't had any shipment in a long while, so when it's sold out, it's gone. EOL.

No heavy discounted Fury/X to compete with 1070 and 1080. No competition in the mid-range & high-end til Vega.

3-4 months to vega, make sense.

 

[StrangerGuy]

While some of us have expected it, I can confirm (from my buddies in PC retail) that Fiji SKUs like Fury/X are discontinued. Some of the biggest distributors in this region will not receive anymore shipment, and they haven't had any shipment in a long while, so when it's sold out, it's gone. EOL.

No heavy discounted Fury/X to compete with 1070 and 1080. No competition in the mid-range & high-end til Vega.

No surprise, previous gen sold at fire sale prices is a practice that is long gone. NV/AMD probably weren't exactly happy when we could get new 5850s/GTX460s for ~$100.

 

[antihelten]

Alright, I concede. That one 980Ti did 35%.

Everywhere else, 20-25%. Pretty good OC margins for sure. Though 35% is taking it to epic levels unseen since Pitcairn & Tahiti.

That one did 35%, and this one, and this one, and this one.

Basically all the high end 980 Ti cards TPU tested did around 35% overclocks.

 

[3DVagabond]

That one did 35%, and this one, and this one, and this one.

Basically all the high end 980 Ti cards TPU tested did around 35% overclocks.

Funny that. :sneaky:

 

[Silverforce11]

That one did 35%, and this one, and this one, and this one.

Basically all the high end 980 Ti cards TPU tested did around 35% overclocks.

I've read a lot of 980Ti reviews, from [H] even, Computerbase, Pcgameshardware.de, Guru3D, Toms and Anandtech here.. they get impressive OCs, 1.45ghz to 1.5ghz and performance was not 35%, far from it, usually ~20%.

Performance does not scale perfect to OC %, to get 35% perf gain, you would have to OC by 40% or so.

From 1.15ghz boost (which is actually ~1.15 to 1.25ghz boost for reference cards, game dependent) clocks by 40% => 1,610mhz, considering a bare minimum of 1.15ghz boost. If you consider 1.2ghz boost clocks, 40% OC requires 1,680mhz.

This is why all the other major tech sites do not find 35% perf gains from OC on the 980Ti...

Here's one of the highest OC 980Ti, the water cooled SeaHawk:

http://www.hardocp.com/article/2015...sea_hawk_overclocked_4k_review/1#.V2kk2rh97AQ

1567mhz. Compared against reference 980Ti.

I'm of the opinion that if one review site produces such outliers in results, it needs to be called into questioning. TPU's numbers are at this point in direct conflict with many other well established tech sites.

 

[antihelten]

I've read a lot of 980Ti reviews, from [H] even, Computerbase, Pcgameshardware.de, Guru3D, Toms and Anandtech here.. they get impressive OCs, 1.45ghz to 1.5ghz and performance was not 35%, far from it, usually ~20%.

Performance does not scale perfect to OC %, to get 35% perf gain, you would have to OC by 40% or so.

I think you're missing the point here. GM200 the GPU itself is clearly capable of 35% overclocks (more than that, since as you point out performance does not scale linearly with OC). Otherwise it would be impossible for BF3 to show performance gains in that range.

The fact that some implementations of the GM200 GPU (i.e. some 980 Ti cards) can't clock that high could be for any number of reasons (insufficient cooling, insufficient power delivery etc.). None of this really has anything to do with the overclockability of the GPU itself.

Secondly you are quite right that some games might not respond as well to overclocks as BF3 did for TPU, since they might be bottlenecked by something else like bandwidth for instance, but once again this doesn't change the fact that the GM200 GPU itself can be overclocked by 35% or more.

Going back to RX 480, Even if it can overclock by 20-25% as rumored, it is quite possible that this will only be possible on high end aftermarket cards that provide sufficient cooling and power delivery, and it is also quite possible that the in game performance gains will only be in the 15-20% range, but again that doesn't change the fact that the GPU itself would be capable of 20-25%.

So looking at purely the overclocking capability of the GPU itself and assuming sufficient cooling and power delivery from the card build and ignoring whether or not said OC leads to a comparable increase in performance (or whether something else is the bottleneck), it is quite clear that the rumoured overclockability of the RX 480 GPU is a step below that of GM200.

How much of the overclocking potential of RX 480 is realised in actual game performance increases is anyone's guess.

From 1.15ghz boost (which is actually ~1.15 to 1.25ghz boost for reference cards, game dependent) clocks by 40% => 1,610mhz, considering a bare minimum of 1.15ghz boost. If you consider 1.2ghz boost clocks, 40% OC requires 1,680mhz.

Here's one of the highest OC 980Ti, the water cooled SeaHawk:

http://www.hardocp.com/article/2015...sea_hawk_overclocked_4k_review/1#.V2kk2rh97AQ

1567mhz. Compared against reference 980Ti.

I'm of the opinion that if one review site produces such outliers in results, it needs to be called into questioning. TPU's numbers are at this point in direct conflict with many other well established tech sites.

A reference 980 Ti does not boost to 1.2 GHz on average, it might max out around there, but it won't average that. I already gave you 4 different sites that clearly showed that the average boost is 1.1-1.15 GHz. As such a 35% overclock would be 1.5-1.56 GHz, and guess what, you just linked to a card that did 1.567 GHz.

So clearly TPU isn't the only site to see results like this (35% overclocks).

 

[Silverforce11]

New Crimson, for Polaris review.

Has new custom OC and fan profiles.

Looks like AMD is putting a major effort into their drivers... voltage modding, custom OC & fan profiles default in Crimson! Damn impressive.

 

[antihelten]

New Crimson, for Polaris review.

Has new custom OC and fan profiles.

Looks like AMD is putting a major effort into their drivers... voltage modding, custom OC & fan profiles default in Crimson! Damn impressive.

Looks nice. Is the voltage modding confirmed?

 

[Silverforce11]

Looks nice. Is the voltage modding confirmed?

Yeah, the Chinese reviewer has confirmed it in the leak from above. Whether press drivers will differ to public drivers....

 

[trane]

Looks pretty extensive. I can feel some benchmarks leak any time soon.

By the way, why do these leakers always have terrible cameras? Seriously, a budget $100 phone can take better pictures.

 

[Silverforce11]

Looks pretty extensive. I can feel some benchmarks leak any time soon.

By the way, why do these leakers always have terrible cameras? Seriously, a budget $100 phone can take better pictures.

In a few minutes. I'll post the 3dMark results as it comes in live.

So far, easily AMD's best reference blower by far. Quiet & cool. Very NV "Premium"-like cooler design.

 

[antihelten]

Yeah, the Chinese reviewer has confirmed it in the leak from above. Whether press drivers will differ to public drivers....

I have to say, the newly reorganized RTG really seems to have stepped up their game. They seem a lot more focused and with a clear plan, which they are so far executing nicely on. Very un-AMD like

 

[DarkKnightDude]

He's claiming NDA got pushed forward. Take it with a large grain of salt.

 

[trane]

I was expecting an early NDA lift too. I disagree though, they have kept a pretty firm lid on leaks given they have been stockpiling massively. Still not a single gaming benchmark out.

 

[PeckingOrder]

can't wait ever since I sold my HD 7850. Intel HD 2500 just doesn't cut it anymore.

here's hoping I can actually buy RX 480 on the 29th

 

[Silverforce11]

can't wait ever since I sold my HD 7850. Intel HD 2500 just doesn't cut it anymore.

here's hoping I can actually buy RX 480 on the 29th

Well you better get in fast because I'm not even a mining enthusiast (imagine what it will be like from the real enthusiasts!), and I am seriously considering buying a heap of them to start a farm. Gotta cash in while its hot!

 

[trane]

Silverforce, do you have a link to the leaker?