Sunday, December 16th 2007
ATI R680 PCB Design and Cooling Early Pics
Here are some leaked pictures from ATI R680, courtesy of ChipHell. What you'll see on the PCB are 2x RV670XT GPUs and one PLX chip for communication between the two cores. All the sixteen memory chips (8 on the front and 8 on the back side) are missing from the board, probably because of the early development stage (that's not a finished product). Source said the card is using 0.7ns GDDR4 memory.
Source:
ChipHell
77 Comments on ATI R680 PCB Design and Cooling Early Pics
So much for fitting that into my mini tower with my micro-atx mobo.
I think ATI can be allowed that one
Looks interesting for sure, but I'm waiting to see what the actual product is capable of.
:toast:
Hope it come with 1 or 2 Gb of GDDR4:banghead:
NVidia's best cards have two SLI bridge extensions. This card being the best one from ATI has only one. The AMD Spider got pwned even before it took off.:laugh:
Where the hell are the memory banks??? Please don't tell me it's going to be AMD Cockroach (an evolution from HyperMemory + AMD's weird naming shemes).:roll:
EDIT: the card still is in the development stage and so no memory banks. I guess you can make a guess on how it performs right now.
1. Take two HD3870 cards, strip them across a x8,x8 lane Crossfire on a board like the Gigabyte GA-790X-DS4. Voila! benchmarks ready. I really don't think the PCI Express lane arbiter made by PLX does anything but to assign tasks for the GPUs. Well, that's what arbiters are meant for.
2x RV680 cards === 4x HD3870
AMD Crossfire X === Good as dead.
ThePLX chip is unknown for the RV670 x2 but we do know that the HD 2600 X2 used a PLX PEX 8547 which is a Multi-Purpose, PCI Express Express Lane Switch. This chip has a latency of 110ns (x16 to x16), uses 48 lanes and 3 port PCI Express Switch. Here is a review of the HD 2600 X2 here. My only issue with this review is that AA should have been used. Using only AF only tells 1/2 the story at higher resolution. Here is another review
If a guess was made, the PLX chip on the RV670 x2 should be a gen 2 also using 48 lanes which would make it a PEX 8648 but there is still no confirmation on this yet. Only time will tell if this is true or not. Ultimately this video card will be very dependent on how profiled and tuned for multi-GPU usage each game is. This can be worrisome if you look at past CF and SLI gaming compatibility.
Increase ROP count!!!
^ An acronym that ATi got blind at.
@EastCoastHandle
Dude, just because I used a non-technical term "arbiter" doesn't mean I was getting to something other than what you highlighted. Contextually the word arbiter means switch. PLX is not the only company that made these for the HD2000 X2. Some cards even used one made by IDT.
This killed 3dfx.
EXACTLY MY FRIEND
This is exactly what 3DFX went thru before it collapsed. The AMD ATi merger had a lot of its top Canadian engineers quit to protest the merger. Look what it lead to.
BTW, this is the IDT switch I was talking about
ATI is doomed and no new cards for 2008 wtf ugg