NVIDIA pushed its second-generation Fermi graphics architecture further into the budget realm on Tuesday through the GeForce GTX 550 Ti. Its card costs just $150 and drops below the $250 of the GTX 560 Ti by cutting back on its parallelism It uses 192 processing cores versus the higher-end chipset's 384, a reduced 192-bit memory bus (versus 256-bit) and has half the texture addressing units at 32, although it partly compensates with a higher 900MHz main clock and faster 1.8GHz GDDR5 memory.