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Possible Radeon 390X / 390 and 380X Spec / Benchmark (do not hotlink images!!!!!!)

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Orangey said:
Looking forward to updating the rumour mill thread after launch, we will learn who has real contacts and who is making up rubbish (wccf...)
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Most of these sites just post any amount of crap that basically ranges over a load of "rumours", so if any of their info was close they can delete news posts that were wrong. Throw enough crap at the wall and some of its gonna stick.
 
R9 390X Performance Estimated – HBM Production Ramping For Fiji XT

Our estimation is based on the average FPS figures across 19 different games tested by TPU in their review of the Titan X. At 4K the performance of AMD’s GCN based GPUs scales in perfect linearity. For example the 2560 GCN unit R9 290 was precisely 2.0x faster than the 1280 GCN unit HD 7870. Even though the 290 is clocked slightly below the 7870, so this would account for the architectural improvements that AMD introduced with the Volcanic Islands architecture verses the Southern Islands architecture.
The performance estimate below is based on scaling with the number of stream processors / GCN units of Fiji XT vs Hawaii XT but again this does not account for any potential architectural improvements or potential HBM memory bandwidth benefits.
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http://wccftech.com/stacked-hbm-memory-r9-390x-ramping-short-supply-initially/
 
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IIRC Gibbo posted a while back saying that there was a butt load of stock for 290/x that just wasn't shifting. I would imagine since the 970 VRAM debacle more of them have sold, and now they'r reaching the end of stock and dropping the price that will clear out any remaining stock.

As soon as the 970 and 980 launched sales of Radeons dropped like the proverbial. I would imagine people were hooked in by the lower heat and lower power use but I saw loads of people selling 290s and 'upgrading' to a 970.

Nvidia always have that power about them. Even when they have something that's turd reviewers still go mental for it dismissing anything AMD.

Thing is at the prices the 290 series are now hitting they're becoming much harder to ignore.
 
LoadsaMoney said:
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http://wccftech.com/stacked-hbm-memory-r9-390x-ramping-short-supply-initially/
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Not going to happen lol

Going on the number of cores the 390X is likely to be about 7% slower than a TitanX. I also don't think the 390x will be anywhere as good at overclocking as a TitanX. The TitanX comes with a 1000mhz base clock and it is dead easy to get them to 1400mhz.:D:)

Another question that needs an answer is will the 390X GPU core get a bit toasty with the HBM packed around it, yes I know HBM uses less power but GDDR5 is a good distance from the core when it comes to cooling.
 
Kaapstad said:
Not going to happen lol

Going on the number of cores the 390X is likely to be about 7% slower than a TitanX. I also don't think the 390x will be anywhere as good at overclocking as a TitanX. The TitanX comes with a 1000mhz base clock and it is dead easy to get them to 1400mhz.:D:)

Another question that needs an answer is will the 390X GPU core get a bit toasty with the HBM packed around it, yes I know HBM uses less power but GDDR5 is a good distance from the core when it comes to cooling.
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The Titan x is not that great at overclocking if you look at the numbers. From what i have seen it boosts at stock to around 1150 which it should sit at if cooling is good. An overclock to 1400 is only around 22%. 22% is decent but compare that to the original 7950 which came in with 800mhz core and could reach 1200mhz+ which is a 50% overclock then it's just an average overclocker. You can't really use a base clock on a Nvidia card to judge how far they overclock as we all know they never really sit anywhere close to it unless they are thermally limited.

Say the 390x is base 1000mhz core, to equal the Titan X overclock you would only need 1220mhz on the core which is not out of this world looking at past and current cards.

This is not exact obviously but it's much closer than comparing with a Nvidia base core clock.

I will be surprised if the 390x is faster than the Titan X but i would not be shocked because i think it's possible. The hbm memory worries me more because if it comes with only 4gb then Nvidia even if slower still hold the cards with a possible 980ti 6gb.
 
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Kaapstad said:
Not going to happen lol

Going on the number of cores the 390X is likely to be about 7% slower than a TitanX. I also don't think the 390x will be anywhere as good at overclocking as a TitanX. The TitanX comes with a 1000mhz base clock and it is dead easy to get them to 1400mhz.:D:)

Another question that needs an answer is will the 390X GPU core get a bit toasty with the HBM packed around it, yes I know HBM uses less power but GDDR5 is a good distance from the core when it comes to cooling.
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Kaap, one of the reason Maxwell has the performance it has is because of thier high out of the box clocks, if your overclocking from 1200Mhz to 1400Mhz your gaining 16%

A 290X from 1000Mhz to 1150Mhz is 15%
A 290 from 947Mhz to 1150Mhz is 21%
 
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