We've got a whopper of a Radeon on the line today with the AMD HD 6990, featuring dual Cayman XT based GPUs clocked at 830MHz, 4GB of memory, 5-way Eyefinity support right out of the box, and the audaciously named "AUSUM" (Antilles Unlocking switch for Uber Mode) BIOS switch you can flip right on the card itself to unleash the "Uber Mode", bringing the GPU speeds right up to 880MHz each. That's before doing any overclocking of our own! It's a monster right down to its power consumption of a maximum 450W, so good thing it's got brand new PowerTune on-board power regulation.
The HD 6990 promises to be 67% better in game performance than the NVIDIA GeForce GTX 580, supposedly its closest competitor. Hit our HD 6990 launch review to see if it can stand on a class of its own!
Thread Recap (last 10 posts from newest to oldest)
Mar 12, 11 at 2:53am
Yeah if you unlocked them...even better.
Mar 12, 11 at 2:31am
That or grab three 6950 1gb's for at least $25 less than a 6990 after rebates.
Mar 12, 11 at 1:48am
If you can get two 6970s that perform better for 100$ less then this card then why not do that unless you don't have enough slots for 3 way or 4 way x fire and keep your warranties.
Mar 11, 11 at 5:03am
Thanks for all the comments guys!!
We just learned that AMD will not warranty graphics cards that use the on-board overclocking BIOS switch. A little disappointing to say the least and the review has been updated to reflect this. So, if anyone does get this card it is recommended to leave the BIOS switch in the default position.
..am I the only one concerned about the 256-bit bandwidth?
They've had the 256bit / 512bit ring bus in the past and it sounds like in the case of the 6990 they're using a config of 256x2 for the card. Still it would be nice to see 512x2 addressing 4GB but at least it's not as bad as it could be :/
Mar 11, 11 at 2:14am
Wow, epic card. But...
..am I the only one concerned about the 256-bit bandwidth? Nvidia seems to use 256-bit bandwidth for every 1GB of ram. Maybe it's not that crucial (2900XT had a 512-bit wide memory interface and it wasn't beneficial to its perfomance) but since it's an enthusiast card I expected some kind of improvement on this matter.
It might be the first that can properly run Metro 2033 maxed -- that's more demanding than Crysis.
Mar 09, 11 at 6:44pm
As far as price/ performance goes it's definitely not good but not too far off from the gtx 580. It's about 30% faster at 2560x1600, and if you don't play at that resolution there's litte reason to get this beast of a card, and if it's price were linear to the gtx 580 it would be priced at $650 (only $50 off from msrp) If you OC it with the bios switch it bumps it up to almost 35% faster, linear with $675. It's expensive as hell but relative to other high end cards it's not priced too bad.
For comparison the gtx 580 would be ~$385 if price/performance scaled linearly with the 6970 or gtx 570. Or when compared with the 560ti it would be ~$299. As far as being overpriced goes it's all relative and relatively the 6990 isn't too bad, at least in my opinion.
Mar 09, 11 at 12:18pm
exactly. thats exactly why it is so expensive. no other card can compete with it, so it doesnt have to have any competitive prices. people would still buy this card though, if they want to get as much performance as possible crammed into as small a space as possible.
Mar 09, 11 at 7:27am
What a rip off.699.00 that's a hundred over the hd 5970 when it was released.The only reason it is this high, is the fact that there is no competitive card out there.An extra 2 gigs doesn't cost a hundred dollars.
Mar 09, 11 at 3:17am
$700 though? gosh damn. Someone needs to make a special edition and sell it for $1k.
make the cooler take up 4 slots, all copper, 30 heatpipes and six silent 80 cfm fans.
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