Nvidia is about to introduce yet another card in the low end, the GF119-based GT 520.
The card packs just 48 CUDA cores and a 64-bit memory bus and it’s clocked at 810MHz and 1610MHz for the GPU and shaders respectively. It should pack 1GB of DDR3 memory running at 1794MHz.
According to some early benchmarks, the card scores 2642P in 3Dmark Vantage and it should cost about $50. Expect to see a lot of passive versions, which might be a good choice for the HTPC crowd.