LG says the TX is based on an ultra-low voltage Pentium M 753 clocked to 1.2GHz. It's got a 400MHz frontside bus speed, but there's 1GB of 533MHz DDR 2 memory on board. The 12.1in, 1280 x 800 display is driven by an Nvidia GeForce 7300 with 64MB of graphics RAM, though its TurboCache supports allows it to take up to 172MB of main memory too.