The GeForce GTX 780 6 GB Strix isn't the only graphics card in the Strix series from ASUS, the company also launched one based on the Radeon R9 280, armed with 3 GB of memory (model: STRIX-R9280-OC-3GD5). The card appears to feature the same exact DirectCU II based cooling solution as the one on the GTX 780 Strix, and likely a similar PCB to the R9 280 DirectCU II series. The cooler offers 0 dBA cooling when the GPU is running at temperatures below 65 °C, and begins to spool up only beyond that. So handling most desktop and mild 3D loads should be completely quiet. The card also offers a factory OC. The GPU is clocked at 980 MHz, and the memory at 5.20 GHz, compared to reference clocks of 823 MHz core and 5.00 GHz memory. Based on the 28 nm "Tahiti" silicon, the Radeon R9 280 offers 1,792 GCN stream processors, 112 TMUs, 32 ROPs, and a 384-bit wide GDDR5 memory interface. APIs supported include DirectX 11.2 (feature level 11_2), OpenGL 4.4 and AMD Mantle. ASUS didn't reveal pricing.