News - AMD Radeon HD 6990 dual-GPU graphics card speeds leaked at CeBIT

[HEXUS]

Slower than expected?

Read more.

[Jimbo75]

Surely the point here is remaining under 300 Watts? If that is so, 800 mhz is higher than I'd have anticipated.

[_alias]

There are two way to take this.

Its not that fast.

And the target market for this is the enthusiast market. The prob imo is that two boards on one card, to have twice the performance would need twice the power (watts).

But this 300watts limit, mean they only can go so high with tech.

If your spending this much your prob going to water cool anyway.

All i can say is:
if they don't have a VRM issues like the 5970,the cpus can share ram and
the card can over clock as well if not better than the 5970.
Not to mention i would like to see a good scaling between the two cards.

If they have all that then i'll be very happy :-)


____________________________________
no i will not hold my breath

[kalniel]

Are you forgetting powertune? Any restriction on speeds is likely to help keep the card within official ATX? specifications. If you don't care about that just use powertune to remove or raise the restriction and I bet it can clock up quite well

[scaryjim]

I think a decent overclock will require a brave partner to release a special edition with 2 8-pin connectors to supply plenty of power: but frankly 800MHz is a good core clock for a dual GPU card staying within ATX spec.

The memory clock looks a little low, I will be a little surprised if that ends up being the release clock given the controller can obviously do 1250MHz+: I can't imagine pushing the memory from 1125MHz to 1250MHz will use that much extra power, comparatively...

[kalniel]

I think a decent overclock will require a brave partner to release a special edition with 2 8-pin connectors to supply plenty of power

2x8pin is reference as far as I can see.

[scaryjim]

Hmmmm, good spot - I'd only looked briefly at the Sapphire pictures and hadn't picked up on the 2x8pinness of it at first glance.

In that case they must be skirting dangerously close to the 300W max PCIe specs anyway. Still, 2x8pin should ghive enthusiasts a spare 75W to play with if they fiddle with the powertune settings

[danroyle]

this could all of course be a clever ploy by AMD tell there partners to show it but show it underclocked speculation will amass about it not being great Nvidia could get complacent (its happened before)

And bam just before release reviews come out with real clocks card blows expectations out of the water and more people buy it.


IF i worked in P.R thats what i would do.

[CAT-THE-FIFTH]

The card has a dual BIOS:

http://forums.hexus.net/graphics-car...enchmarks.html

One setting has the card slightly underclocked and the other has the card running at higher clockspeeds.