Quadro FX 3450 is a professional GPU whose purpose is for professional applications such as Adobe Photoshop and video editing software.
It's based on the NV41 GL Chip offering 12 Pixel Shaders. Compared to Quadro FX 3400 it features less Pixel Shaders but they are higher clocked and the memory bandwidth is considerably higher to the 1000MHz memory clock. Its performance, should be a little higher but still on level with the predecessor though consuming less power, due to the lower amount of Pixel Shaders.