Wednesday, December 21st 2011

AMD Radeon HD 7970 PCB Pictured Clear

Here is the first clear picture of Radeon HD 7970 engineering sample PCB. The final product will feature an all-black PCB color. The picture reveals the PCB to have provision for two 8-pin PCIe power connectors, though on this sample, there are two 6-pin connectors. We've seen other samples using 8 + 6 pin connector arrangements. Unlike earlier thought, the HD 7900 single-GPU reference board very much does use a digital-PWM power design. There appears to be CPL-made single-phase PWM chokes, and Volterra-made regulators. Not all power domains, though, seem to have digital-PWM. We can find a 5+1+1 phase VRM, with some miscellaneous analog power domains.

The GPU package design is nothing like we've seen from AMD. It looks to be slightly larger than that of AMD Cayman. The die is oriented diagonally, with a sturdy brace around it reduce and stabilize the pressure applied by the cooling assembly. There are twelve memory chips around the GPU, as this chip features a 384-bit wide memory interface, to deliver nearly 50% higher memory bandwidth over the previous generation. The card features redundant BIOS, loaded into two separate EEPROM chips that can be toggled using a small 2-way switch located next to the Crossfire connectors. Display connectors include one DVI, one HDMI, and two mini-DP connectors. The second picture below reveals a curvy back-side of the cooling assembly. A nice aesthetic touch with zero function.

Source: PCinLife
Add your own comment

34 Comments on AMD Radeon HD 7970 PCB Pictured Clear

#1
RejZoR
I just hope this fan won't be as rubbish quality as it was on HD5000 series which died nearly instantly. Exhaust coolers are great but the fan quality was just pathetic.
Posted on Reply
#2
AsRock
TPU addict
by: btarunr
Overall, AMD didn't cheap out with component quality, but then it didn't make the PCB exorbitant, either.

Again, the retail reference PCB will be black and have 8+6 pin power inputs. Also, no backplate.
I am just not happy were they put the screw holes around the VRM's as i am sure this is going to encourage more lame VRM cooling solutions like Arctic Cooling do.
Posted on Reply
#3
Wrigleyvillain
PTFO or GTFO
Nice. Looking forward to these.

By the way, I vote for "you jelly" as the most overused and annoying phrase of the year.
Posted on Reply
#4
Casecutter
by: Super XP
So it seems the early adopters are taking it in the airs with hyper inflated prices. It does really suck that people get hosed for their money by overpricing products which should never be overpriced.
Well it is all about what the market will bear that permits the retail/E-tailers to gouge; it's a free market after all. It's folks that say crap like "take my money", "I'm in for two"... blablabla that cause those who receive initial stock to listen to such chatter and have no qualms choking the goose!

With that said, (and as I’ve said) AMD needs to stick to the program when setting the MSRP, if as good as being projected, and the capacity is there, (hope) they should choose taking ground/sales and less about profits per unit. You attract more bees’ using honey, and those may be new sales out of the competitor. Take the fight to Nvidia and their GK104 now!
Posted on Reply
#5
radrok
by: Wrigleyvillain
Nice. Looking forward to these.

By the way, I vote for "you jelly" as the most overused and annoying phrase of the year.
Agreed, could answer to him that I'm buying more than 2 but that would start a wildfire :laugh:

As for the cooling option I'll probably go with Twin Frozr this time
Posted on Reply
#6
theJesus
by: btarunr
The second picture below reveals a curvy back-side of the cooling assembly.
I like curvy back-sides . . . :pimp:
Posted on Reply
#7
Casecutter
by: theJesus
I like curvy back-sides . . .
That's NOT... WWJS
Posted on Reply
#8
theJesus
by: Casecutter
That's NOT... WWJS
But it is WWtJS
Posted on Reply
#9
Steevo
by: Casecutter
That's NOT... WWJS
Jesus hung out with a whore or two and let them give him lap dances and rubbed his feet and shit.
Posted on Reply