The drawback of bus connection is that it slows down the program execution speed, as a outcome of all knowledge transfers use the identical set of lines, and only one information word may be current on the bus at any one time. To help compensate for this, the bus connections are as wide as possible. For instance, a 64-bit bus, working at 100MHz , can transfer 6.four gigabits (6.4×109 bits) per second. The current technology of Intel® CPUs additionally use a number of 64-bit cores in a single chip to enhance performance.