Friday, September 10th 2010

AMD ''Barts'' XT Prototype Pictured

After recent photo exposés of the Cayman XT (Radeon HD 5870 successor) and Caicos (Radeon HD 5400 series successor), the third, juicy set of pictures exposes the XT variant of Barts reference board (Radeon HD 5770 successor), which will likely go on to become Radeon HD 6770.

While the specifications of the GPU are not known, what we can tell from the pictures is that the card is powered by two 6-pin power connectors, uses 4+1 phase digital PWM circuitry, and looks to have a 256-bit wide memory interface for a near 80~100% increase in memory bandwidth compared to the previous generation. Display outputs include two DVI, one HDMI, and two mini-DisplayPort. There is one CrossFire connector for 2-way CrossFire support. AMD will kickstart its next-generation Radeon graphics series launches later this year. Don't mind the puny looking GPU-cooler, AMD uses it on prototypes. The actual cooler's outline is drawn on the PCB.
Source: ChipHell
Add your own comment

54 Comments on AMD ''Barts'' XT Prototype Pictured

That GPU Cooler :respect: Plus 2 x 6-pin PCI-e Connector :D
Looks nice though.
Posted on Reply
btarunr said:
I didn't count uncore, so yeah, 4+1+1.
There either is no uncore "vDDCI" VRM at all or the config is 4+1+1+1.
From this distance those chokes do look like Cooperbussmann single-phase PWM.
What you are referring to is only a type of SMT inductors that are made by many a company. Though, I cannot recall ever seeing one from CPL (Cooper Bussmann). Anyways, they can be coupled with nigh any type of regulators and Volterra's "digital" chippery is only one possibility. But what gives away the VRMs are not Volterra are the components around the heatsink covered regulators and the proverbial inductors.
Posted on Reply
cheezburger said:
it was proved to be hoax.
Welcome news, but...
Posted on Reply
Let get some links please :)
Posted on Reply