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[Lab501] GTX590 VRMs analyzed - Page 18

post #171 of 207
Quote:
Originally Posted by grunion View Post
Got to be temporary while they line out the OCP, It's obvious they can't use a static OCP because that would hinder too many games.

I mean you know, COD needs less than M2033, etc..
Sorry, my post was semi-trollish and wasn't meant to be taken seriously. I have no info about their new drivers.
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post #172 of 207
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Originally Posted by saulin View Post
Exactly. Can someone also point me to a source that confirms that the GTX 295 is based on 2 GTX 285s
based more on 280's, 55nm with the same clock speeds as the 260's.


HERE
post #173 of 207
Quote:
Originally Posted by smash_mouth01 View Post
based more on 280's, 55nm with the same clock speeds as the 260's.


HERE
That's not true, the 295 released before the 270 and was also on the shrink (55nm).
That's why that comparison shows the 280, the 275 didn't exist yet.
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post #174 of 207
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Originally Posted by tsm106 View Post
And you think marketing people and top brass, would want a universally laughable product that, it's mere existence drags the company down? You mean to tell me that they were willing to be embarrassed like this? As if they weren't embarrassed by the 570 enough? Their engineers still think the 570 is A-OK, hence why it never got fixed in the first place. It's like Ferrari making the Enzo, only it's motor to blows up when ever it is pushed which is the whole point of its existence. It's the halo product, the one every kid out there wants but can't have.

C'mon, there's a real failure here, and there's no clear cut sign of whom made the stupid decision. I kind of lean towards engineering because I know those guys can make stupid decisions.

Like Williams in 94, killing Senna cause they got the great idea of changing the steering column, and it failing thus killing the greatest driver to ever pilot an F1 car.

Engineers, yes engineers make stupid decisions even painfully obvious ones.
Sorry I guess my point wasn't clear in the way I worded it. In real companies , departmental politics, fiefdoms, and personal agenda's fully determine what goes out the door to customers. Despite what was supposed to be engineered, what the CEO, COO, and Sales team desired etc.

Most of my companies IT Architects /experts were laid off, and outsourced. The new team(s) overseas have no clue what they are doing yet they are being asked to contribute to designing new applications and architect, which is laughable.

Commonly now I have to cleanup after one vendor talking to another (having no clue of the big picture), management doesn't give a crap as long as they get some useless milestone done to receive their bonus. Departments have tunnel vision, and refuse to talk to each other, and have descended to Task mentality and living by email alone.

The problems are discovered by the customer 1st (In every case), are systemic, No one internal wants to be the one to say the product is $hit, and no one is willing to lay accountability at someones feet. Blame is typically sidestepped and laid on those who moved on to greener pastures elsewhere, and the cycle begins anew.

We have no idea what's going on inside Nvidia, tho I believe their latest round of products give us an obvious symptom. Component Capacity Management looks to be a group design, and not actually engineered and measured but likely assumed from 10,000 feet, which means someone guessed in the rush and guessed wrong. That's all.
post #175 of 207
Quote:
Originally Posted by Sin0822 View Post
the GTX 570 has the same problem but uses low RDS (on) MOSFETs. I saw this coming a mile away when i saw the reference design, same crap as the GTX 570. 50a DrMOS are very expensive and that is why they are not used, apart from the pins the weakest part of any power supply on a PCB, are the inductors, then the MOSFETs. Inductors are a huge issue and the higher inductance the less current it can support.

If they added another phase onto there we wouldn't have seen this problem, but they are cheaper than cheap when it comes to NVIDIA design.

here it is they go digital, but they cheap out and go with the Chil PWM, now volterra is much better but you have to use everything volterra, no chokes instead a single inductor, and usually a single or multiple POSCAP. Chil PWMs also have problems with extreme cold, such as on the R3E, you can't let it get cold like under -100c. Chil allows you to use different types of MOSFETs and caps, this is a first tho seeing DrMOS with a digital Chil PWM, they are much more efficient, better driving signals, but you gotta use more DrMOS, that is why you see mobos with like 8+ phases and then when you goto GPUs that pull more current you see less phases, stupid nvidia.
what's the VRM design on GTX 470, is it better in some ways than the 500 series?
     
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post #176 of 207
Quote:
Originally Posted by grunion View Post
Is this true?

Source
Ouch! Sucks for those who bought waterblocks.
post #177 of 207
Quote:
Originally Posted by Cepheus View Post
Since when were dual gpu boards innovative (except for the 7950GX2, which obviously innovated with the whole concept of dual gpu)?
ATI had one back before they named their GPUs Radeons.

Quote:
Originally Posted by PoopaScoopa View Post
Let's take a look at how scaling does even on an AMD friendly game:
JC2 isn't AMD friendly, my HD4890 ran it slower than my 9600GT...
    
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post #178 of 207
Quote:
Originally Posted by Brutuz View Post
JC2 isn't AMD friendly, my HD4890 ran it slower than my 9600GT...
IIRC, Nvidia added their "special optimizations" to that game for us ATI/AMD users. Thanks Nvidia!
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post #179 of 207
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Originally Posted by Pedros View Post
But you know ... having a GTX 590 gives you some kind of "status" ... people just don't care how bad it sucks ... they just want to show that they have the 590 ...

and most of 590 users try to show how much they really understand about graphic cards ... but in the end ... if you show him a mosfet & a memory chip ... for him ... they are the same ...

So... what the hell ... ( attention ... i'm just criticizing some "way of life" that some users have ... you can buy a 590 for your delight of course ... )
okay that was really uncalled for. What made you write that? Don't you think that there might be some other reasons why we bought the card than for e-peen?

As far as the performance goes I'm really happy with what I got. @1200p (yes these cards are not a waste @1200/1080p) the performance is better or on par with a 6990 from what I've seen.

I usually don't overclock gfx cards because I don't want to mess with software OCing, but if nvidia starts limiting the voltage adjustements, speed, performance blatantly I will demand a refund and will get one if need be. And if my card blows I have my warranty and 2 5870s in my drawer waiting as backup cards.

Disregarding the fact that some of the cards blow, and even this is questionable, at least fact that how many cards have gone up in smoke. We don't even know how many have been sold. For all we know only 1/500 has failed. ( you get a new one in the case btw guys) I don't get why people are saying this is a horrible card and the worst card available at the moment. If you need a single card solution and want performance it's ideal, doesn't sound like a leaf blower and is relatively small. And will probably still have good drivers when the 600 series comes out.

And yes performance is stellar.

But as I own a 590 I'm biased and ready to be flamed. All I can say is that if my card can take a nice little OC and does not blow, how can I consider that a fail?
 
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post #180 of 207
Quote:
Originally Posted by Pedros View Post
But you know ... having a GTX 590 gives you some kind of "status" ... people just don't care how bad it sucks ... they just want to show that they have the 590 ...

and most of 590 users try to show how much they really understand about graphic cards ... but in the end ... if you show him a mosfet & a memory chip ... for him ... they are the same ...

So... what the hell ... ( attention ... i'm just criticizing some "way of life" that some users have ... you can buy a 590 for your delight of course ... )

By the way, Cepheus ... the power circuitry will determine performance ... of course!!!! if you have a good vrm design, your power draw can lower, your temperatures will lower due to lower vrm load ... so ... all this will will determine overall performance of the card!!!
I totally agree with you. Why do enthousiasts on OCN buy the 590 anyway when the competition is simply better?

For enthousiast like us, there is a major diference between the 590 and the 6990 that is alot more important then the ''noise'' of ther stock cooler. The 6990, on the AUSUM BIOS switch, doesn't have any TDP and no throttling/PowerTune limit. Or it's almost impossible to reach it! (see Anand review).

That's alot more significant and important for enthousiasts. Put a waterblock on the 6990, and there will be no throttling and no OCP holding you back. You can raise your voltage and not worry about throttling!

That's the way to do a proper enthousiasts card. I can't beleive people are buying the 590 while the competition doesn't have all the limitations, OCP, hard lock voltage that the 590 have.

Why don't people talk about this more on OCN? It's a really major and significant advantage for enthousiasts like us (not Joe-6-pack) for the 6990 design right there.

Read it here on Anand.

http://www.anandtech.com/show/4209/a...le-card-king/4

And you can Tri-Fire the 6990 with a 6970. Can't do that with Nvidia. Another significant advantage there also. For the price of 580 SLI, you get 3 GPUs on 2 cards. Better air-flow, etc.
Edited by Levesque - 4/3/11 at 11:24am
    
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