As we inch closer to the early-April launch of AMD's newest graphics card, the Radeon HD 4890, pictures of the said card by various AMD partners are piling up. Among all the usual reference-design cards we have seen so far, that virtually every partner is working on, we have learned that ASUS is working on something bigger. The company already has a reference-design card in the works, and another one that is set to eye the top-spot in the range of HD 4890 cards that will hit the market. The company is designing a non-reference design accelerator that concentrates on a superior power design, and higher clock-speeds. We do not know what the company plans to call it, whether it joins the elite MATRIX series, or a "TOP" model under its general lineup, but the odds are tilting in favour of it featuring in the MATRIX lineup, the reasons you will soon know. Pictured below is its PCB, a list of some of the most notable features follows: 100% digital PWM design - something the reference PCB features too, but enhanced by a small design change by ASUS The 6+2 phase power circuit is controlled by two independent VRM controller chips, the vGPU can be controlled by software, and can be set up to 1.4 V with the included software An 8-pin PCI-E power input replaces one of two 6-pin inputs on the reference model. This is said to add electrical stability and increase overclocking headroom ASUS added the industry's highest-quality voltage regulation thanks to the Fujitsu high-density ML capacitor, that facilitates the lowest ESR, and is best suited for digital PWM circuits (the cleanest power makes it to the GPU) The GPU is expected to be clocked above 900 MHz, with the GDDR5 memory at 1000 MHz (4.00 GHz effective) It will feature a non-reference high-performance cooler, which doesn't want to be pictured yet With this on offer, the card could be one of the more expensive ones in its series. The reference-design card is expected to be priced at US $249.99, for the know.