The processor appears to support 64-bit addressing but only single channel memory. More important will be the motherboard and available drivers. The motherboard may not support more than 2Gb so a 64-bit OS is a waste. A six year old processor is antique by todays standards. It would probably make a good word processor, web browser and email client but I wouldn't expect it to run any current software with high processor demands. While it is pretty speedy, it's a single core/thread processor with limited throughput.