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AMD Radeon HD 6990 - More details released

If the 590 is simply two 580s and the 6990 is two 6970s and the scaling is the same then the 590 will be the better. However it's not as simple as that.
 
That would be nice, but the Fermi architecture is not good enough. Nvidia will struggle to come in under 300watt with a pair of GTX460 cores.

As you move up the range, the the power usage goes to the dogs.

It looks like the best GX2 type card from Nvidia would need to be a pair of heavily cut back GTX560 cores or a pair of stock GTX460 chips.
 
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Seeing he has a U2711 and a U2410, I think he might.

To run Metro he will need two HD6990's to have any chance of hitting playable frame rates.
 
jigger said:
Seeing he has a U2711 and a U2410, I think he might.

To run Metro he will need two HD6990's to have any chance of hitting playable frame rates.
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i only play using the u2711, [even this monitor with some games can give me motion sickness if FOV is low ive found]

also the bezels are to big for eyefinity [dont know how people use it with bezels]
 
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Well the 9800GX2 was the cores from a 9800GTX clocked at ~9800GT speeds.

The GTX295 was a pair of GTX275s clocked at GTX260-216 speeds - the cores themselves were closer in setup to a GTX280 though, just missing 4 pixel shaders?

So by common sense, the GTX590 is going to be one of the following, depending on TDP.

2x GTX580 cores, most likely heavily clocked down to lower than GTX570?
2x GTX570 cores, again clocked down but not as heavily as GTX580 cores would be.

My money would be on the GTX570 cores at ~650MHz core, that way it would take the HD6990 on almost head to head. Needs to be priced accordingly, mind.
 
I reckon the 590 will be two 580 cores(512 shader) but on the 570 320bit bus, downclocked to keep it under whatever tdp they are aiming at. just like the 5990 i reckon it will be two of the better cores but kept in check (throttled severely) by amd's power management.
 
Tute said:
My money would be on the GTX570 cores at ~650MHz core, that way it would take the HD6990 on almost head to head. Needs to be priced accordingly, mind.
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Apparently the 590/595 will have two 580 cores with the full 512 shader processors but underclocked.

Can't remember where I read it though, so take with a pinch of salt.
 
From googling the TDP of GF110 is 244W. Two of them gives a smidge under 500W.

They're going to have to be very conservative with the clocks - and you have to ask yourself at what point it just makes more sense to use the scaled down GF110 in the GTX570. That seems to have a TDP of 219W which would still mean scaling the clocks down but nowhere near as much.

Of course, as you've stated, cutting the bus would help but i'm not sure by how much.
 
seeing as i may be looking at the 6990, is the heat a problem on these double cards, [ie is it much better to purchase two separate cards and space them out on the motherboard?
 
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