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Radeon HD 6990 leaked slides

RavenXXX2 said:
It's fake, they are the same style as the ones leaked before the 6970/50 launch which were confirmed fake.
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Yes, those ones were good fakes because they are the same style AMD actually uses. Your reasoning would mean all AMD release slides in the past 3 years were fakes, which they weren't.


However, the numbers don't look quite right, 6970 maximum powertune power, 250W, typical gaming, 190W, 6950, maximum powertune power 200W, typical gaming 140W.

Yet this one is 375W max, 350W typical, not likely, I reckon that might be just about the only thing thats changed.

Anyway, voltage and clocks closer to a 6950, which has 140-150W typical gaming power with default powertune settings, 2x,= 300W or so.


As for 67% faster, why wouldn't it be, xfire scaling tends to be 85-95% with 99% in a few things. Why on earth when a 6970 is within 10% of a 580gtx in loads of things, would it be less than 67% ahead on average?

The 5970 is STILL 70% faster in a couple games, and 30-40% faster on average, while the 6 series cards have SIGNIFICANTLY better xfire scaling.
 
drunkenmaster said:
However, the numbers don't look quite right, 6970 maximum powertune power, 250W, typical gaming, 190W, 6950, maximum powertune power 200W, typical gaming 140W.
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a 6970 with maximum powertune power does 277w , a 6950 with maximum powertune power does 189w

power.jpg
 
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drunkenmaster said:
As for 67% faster, why wouldn't it be, xfire scaling tends to be 85-95% with 99% in a few things. Why on earth when a 6970 is within 10% of a 580gtx in loads of things, would it be less than 67% ahead on average?

The 5970 is STILL 70% faster in a couple games, and 30-40% faster on average, while the 6 series cards have SIGNIFICANTLY better xfire scaling.
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The HD6970 is not within 10% of the GTX580, it's more like 15%. There's no point making assumptions based on numbers because a few errors here and there adds up to a large one. I'd just wait and see the actual results.

GJ02 said:
you have one dont you helios !
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I don't yet :(
 
gareth170 said:
a 6970 with maximum powertune power does 277w , a 6950 with maximum powertune power does 189w
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WEll one of them is spot on, but my point was the DIFFERENCE between max and typical, 50W for the 6950, 87W for the 6970, yet 25W according to those slides, seems very unlikely to me.

Its also worth noting power settings are a bit silly, they aren't 20%, at all, they should call it setting 1 or 2 really, 140 or 150W to 190W is not 20%, 190W to 277W again is not 20%.

LIke I was hinting out, I'm expecting 299.9999999999W with powertune at normal setting, 375W at powertune +20%(well 25%).

seena said:
http://www.anandtech.com/bench/Product/298?vs=305

check this link

according to this 6970CF is 52% faster than gtx 580 at 2560x1600 resolution
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Yup, take out Civilisation which is massively cpu limited, change Battlefield for a game AMD is way in the lead on(Call of Juarez Nvidia gets spanked left right and centre, the 5970 was 70% faster than the 480gtx in that) and you'd be looking at closer to 65-70%.
 
seena said:
amdradeonhd6990_offdetails_5a_dh_fx57.jpg


[/URL]
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In what way Raven is that not in AMD style, lets just link to [H]'s images from the slides of the 5970 launch shall we.

LINK


Also worth remembering one of the biggest problems with the 5970 overclocking really really well, was the VRM's rather than gpu's, thats why they've both put the fan in the middle so each core gets same temp air rather than one being much hotter, and the VRM's are split into two locations so more of them with less load and better VRM's that get a lot less hot in the first place.
 
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drunkenmaster said:
WEll one of them is spot on, but my point was the DIFFERENCE between max and typical, 50W for the 6950, 87W for the 6970, yet 25W according to those slides, seems very unlikely to me.
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Why not?

All that indicates is the power containment cap has been moved closer to the typical operating power of the card. Given the high power draw associated with powering two 6970-class GPUs, this is pretty much as expected. AMD will want the card running as close to their designated power draw as possible, in order to maximise performance.

The slides could well be fake, given all that rubbish leading up to the Cayman release. But I certainly wouldn't discount them based on the above.


Edit: it's interesting - looking at the quoted power-draw figures, you get an idea for the kind of nonlinear power : performance scaling that occurs at high clockspeeds: For an 18.6% increase in "typical gaming power" (350W -> 415W) you get only a 6% increase in core clockspeed (830 -> 880Mhz), and for this you're looking at a 3-6% performance increase in most cases. This is also more or less in line with what could be expected.
 
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LOL.

I love the way this is most certainly VERY real now that BitTech have one in their labs.

Can all the people that confidently wimpered "fake" please stand up and be counted.

Or, alternatively, you can prophecise about NVidia's counter.....the 290.

:D

JJ

p.s. the proud owner of a GTurdX275 with no loyalties anywhere apart from his pocket ;)
 
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