AMD: Speculation, Rumors, and Discussion (Archive)

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Excellent noise. But the voltage limit really does hurt a lot of the customs appeal...and I cant understand why it is limited. Maybe a serious degradation problem with the 14nm? Or AMD wanting to cap the performance? That limit really hurt the sales of this extreme cards that are build exactly to operate beyond that.
 
xEx said:
Excellent noise. But the voltage limit really does hurt a lot of the customs appeal...and I cant understand why it is limited. Maybe a serious degradation problem with the 14nm? Or AMD wanting to cap the performance? That limit really hurt the sales of this extreme cards that are build exactly to operate beyond that.
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We need to see more reviews of the Asus 480 Strix and OC using the Asus Tweak utility, so far only seen one review doing this and cannot tell of the voltage scaling challenge is unique to that individual card or across more of them.
But I think it is a challenge with the current 14/16nm, which Nvidia it seems has more of an edge with when it comes to voltage scaling and clock frequency when OC; possibly due to both their architecture and importantly TSMC.
Kit Guru managed with their Asus 48 Strix manual OC 1400MHz but with 1.23V.
Looking back for another reference known OCer der8auer with the reference design and using DIY-extreme methods to break limits (including use of watercooling) managed 1430MHz but with 1.26V
To hit 1480MHz he had to set 1.35V.
Seems to be a trend pattern for scaling, but really need more cards tested, and maybe the higher OC is really only useful for the extreme benchers setting records/competitions where 24/7 reliability is not a consideraiton.

I think it is going to need some aggressive binning for any GPUs in the low 1400 range, but I think the AIB partners will be cute and leave it as manual OC to hit 1400MHz clock and so will say breaks warranty/return policy - we will see the same with Nvidia (such as Asus with their XOC Bios for Strix 1080).
It will be interesting to see what the ceiling is in general for default OC custom cards even with binning, and at what voltage if at all beyond the 1.15V.
Cheers
 
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xEx said:
http://www.guru3d.com/news-story/amd-to-release-radeon-rx-470-and-rx-460-in-early-august.html
Click to expand...

AT also reporting on it - http://www.anandtech.com/show/10530...x-460-specifications-shipping-in-early-august

RX470 - 32 CUs, 1200 Mhz Boost, 120W TDP. 4 GB 6.6 Gbps memory. Availability August 4th. The chips must be rated for 7 Gbps anyway..why the need for a downclock.

RX460 - 14 CUs, 1200 Mhz Boost, sub 75W TDP as expected. 2/4 GB 7Gbps memory. Availability August 8th. Key point it has only 14 of 16 CUs enabled..I'm very surprised by this.

Edit: They haven't disclosed pricing yet but I expect $169 for RX470 4 GB and $109 for RX460 4 GB.
 
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CSI PC said:
We need to see more reviews of the Asus 480 Strix and OC using the Asus Tweak utility, so far only seen one review doing this and cannot tell of the voltage scaling challenge is unique to that individual card or across more of them.
But I think it is a challenge with the current 14/16nm, which Nvidia it seems has more of an edge with when it comes to voltage scaling and clock frequency when OC; possibly due to both their architecture and importantly TSMC.
Kit Guru managed with their Asus 48 Strix manual OC 1400MHz but with 1.23V.
Looking back for another reference known OCer der8auer with the reference design and using DIY-extreme methods to break limits (including use of watercooling) managed 1430MHz but with 1.26V
To hit 1480MHz he had to set 1.35V.
Seems to be a trend pattern for scaling, but really need more cards tested, and maybe the higher OC is really only useful for the extreme benchers setting records/competitions where 24/7 reliability is not a consideraiton.

I think it is going to need some aggressive binning for any GPUs in the low 1400 range, but I think the AIB partners will be cute and leave it as manual OC to hit 1400MHz clock and so will say breaks warranty/return policy - we will see the same with Nvidia (such as Asus with their XOC Bios for Strix 1080).
It will be interesting to see what the ceiling is in general for default OC custom cards even with binning, and at what voltage if at all beyond the 1.15V.
Cheers
Click to expand...
Yeah Im just commenting the fact that you both an "extreme version for OC" and can only get like 20MHz more. At this point I think it is more attractive to have a reference card with better cooler and you would be getting the same performance.
 
xEx said:
Yeah Im just commenting the fact that you both an "extreme version for OC" and can only get like 20MHz more. At this point I think it is more attractive to have a reference card with better cooler and you would be getting the same performance.
Click to expand...
Yeah does seem that way for both manufacturers.
Checking some other references even Nvidia need around 1.35V for 2500MHz on the 1080 model, but that needs to be balanced that the guaranteed OC is 1733MHz, easy to forget that with reference cards boosting up to 2000MHz with some tweaking and shows just how limiting voltage scaling is this time round as the cards hitting 2000-2100MHz are doing so with less than 1.1V.
Maxwell 2 generation will be the last to have that incredible OC capability for consumers and 24/7 gaming IMO.

Cheers
 
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Just an update: the nitro has been taken off the listing in Amazon and newegg have only listed the 8GB for 280 Dollars, with the low profile 1060 for 250....
 
xEx said:
Just an update: the nitro has been taken off the listing in Amazon and newegg have only listed the 8GB for 280 Dollars, with the low profile 1060 for 250....
Click to expand...

Unless the RX 480 is sitting on the shelves unsold, that's not really a bad thing..
 
Gigabyte Radeon RX 480 Review: Capable Yet Compromised By Compatibility
The card comes with HDMI 2.0b and 3 DisplayPort 1.4 HDR ready connectors, which is probably one of the most apparent disconnects I’ve ever seen between display connectivity and target market. Why discard the venerable “99%” of your target market who most likely have a 1080P monitor with a DVI port? If you’re not going to provide the port, at least give us a converter!
....
At the end of reviewing the Gigabyte RX 480 I have one word to describe the experience: Frustrating. Not because I abhor tinkering or finding the best power to frame rate balance, but that you feel forced to make it run a certain way because AMD tried to cram a 180W TDP card into a 150W one. Running it at its “compatibility” 150W TDP introduces reductions across the board, although less so in 1080P than 1440P. Forgetting compatibility mode, the card achieves mostly strong 1080p/60FPS performance and playable 1440P/30FPS performance while the move to 14nm has allowed AMD to make one of their quietest non-water cooling reference cards—although it can bring the ear pain if you dare it to.
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https://websetnet.com/gigabyte-radeon-rx-480-review-capable-yet-compromised-compatibility/
 
Btw does anyone here know if the UE4 has higher performance with Nvidia or AMD? and if so it is a huge difference?
 
xEx said:
Btw does anyone here know if the UE4 has higher performance with Nvidia or AMD? and if so it is a huge difference?
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IIRC Unreal Engine carries gameworks code.

If I'm right, it's the whole shitshow at the engine level. Though developers can choose what modules to include.
 
xEx said:
Btw does anyone here know if the UE4 has higher performance with Nvidia or AMD? and if so it is a huge difference?
Click to expand...


It works well on both, just depends on the amount of tessellation that is being used. (for off the the shelf UE4 with game works, there is no control over this when using Hairworks)
 
Razor1 said:
It works well on both, just depends on the amount of tessellation that is being used. (for off the the shelf UE4 with game works, there is no control over this when using Hairworks)
Click to expand...
ToTTenTranz said:
IIRC Unreal Engine carries gameworks code.

If I'm right, it's the whole shitshow at the engine level. Though developers can choose what modules to include.
Click to expand...

Thanks. I was also looking and it seems that its mostly balance between the 2 companies.
 
ToTTenTranz said:
IIRC Unreal Engine carries gameworks code.

If I'm right, it's the whole shitshow at the engine level. Though developers can choose what modules to include.
Click to expand...
Also worth remembering UE4 is a multi-platform engine now with consoles based upon GCN, and so unlike previous versions will this time have aspects that will align well with AMD (but also including some dedicated APIs for consoles that may not easily port), some of which was done with the collaboration of Lionhead Studios for Xbox-one.
So I think AAA cross-platform games at the core game-rendering engine design should be ok for AMD, not so sure for games primarily developed-launched on PC but that will be less in the future compared to console being primary platform.
For a lower budget development Hellblade could be interesting to analyse, while from the AAA big budget Gears of War 4, and PC only lower budget indy We Happy Few.
One that could be interesting as it will have aspects integral to Nvidia is Obduction, VR game.

Cheers
 
My friend Michele Carasia - aka Mitch - received from Sapphire the RX 480 4GB Nitro+. Here is the teardown video


I really like the PCB and the fan attachment system. The review is coming soonish (C).
 
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