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Friday, 10 September 2010 15:40

AMD's upcoming "Barts" XT card pixellized

Written by Slobodan Simic

256-bit memory interface

Right after Cayman and Caicos prototype pictures surfaced, the guys from ChipHell Forums also posted a picture of a prototype Barts XT card, which should end up designated as Radeon HD 6770 unless AMD decides to change its naming scheme at the last minute.

Bear in mind that we are still looking at prototype cards and that the actual retail samples might end up to be a bit different as we are pretty sure that it won't show up in the market with the pixellized cooler. Although the specs are still unknown, it can be seen from pictures that the card need two 6-pin PCI-Express power connectors, has singe Crossfire connector and has two DVI, an HDMI and two mini-DisplayPort connectors.

The card should have a 256-bit memory interface and, according to rumours, an 80% to 100% increase in memory bandwidth when compared to the previous generation.

More here.


Last modified on Friday, 10 September 2010 18:49
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+2 #1 Haberlandt 2010-09-10 16:51
Could that cooler end up as being the reference?
+15 #2 Volks1470 2010-09-10 17:10
now why would a 6770 be using two 6-pin plugs? The current 5770 only uses 1 6-pin plug.
+19 #3 Volks1470 2010-09-10 17:13
looking closer, there now way at all that is the 6700 series. It has to be a 6800 card. The 5700 pcb is significantly shorter with less power connectors.

unless...the 6700 performance will match the 5800 series??
+27 #4 yourma2000 2010-09-10 18:57
Why is there only one crossfire port? my guess is that this is a standard prototype board. We shouldn't make assumptions to what card it my be by looking at stuff like power connectors or number of memory chips, if it's only a 6700 card then why does it have two 6pins? and if it's a 6800 card then why does it only have one crossfire port? It's using typical plain cooling fans & heatsinks, the reference cooling solutions might not yet be finalized.
-32 #5 nforce4max 2010-09-10 21:28
Quoting Volks1470:
now why would a 6770 be using two 6-pin plugs? The current 5770 only uses 1 6-pin plug.

Welcome to Nvidianization, more power, more plugs, more heat. ATI only has the advantage of having a more streamlined shader allowing them to scale up at little cost.
+6 #6 Nox 2010-09-10 23:28
Well, according to other sites the successor of 5770, BARTS will be named 68xx series. The Cayman architecture will be named 69xx with Anchilles at 6990. This is because Barts will be on par or in range of the 5850 and 5870 (XT and Pro) performance wise. I think this information might be correct, hence the dual 6-pins on the card. Taking that into consideration it will be quite interesting how this fall/winter will turn out.
+7 #7 Fud_u 2010-09-11 08:41
So, is "Homer" the almighty hd6970?
0 #8 Nerdmaster 2010-09-15 16:55
I still don't understand why do they need to name 6770 to 6870. Who made up this rumor? The xx90 also was used for a refresh and not a new generation.

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