How to understand CPU working frequency

Q: Intel Celeron D330 2.66Ghz His frequency is 2660MHz Fsb:533mhz, so his name is 2.66G? And, the frequency of AMD Sempron 2800 (mh:1600mhz
FSB (Mhz:800mhz

What do you mean, 2800 in that name? is the working frequency 2.8g?

A: AMD is different from Intel's logo, 2,800 is a PR value, 1600 is its actual frequency. 533 and 800 are front-end buses, which connect the computer microprocessor to the memory chip and the device that communicates with it. The front-end bus is responsible for connecting the CPU to the main memory, and the front-end bus (FSB) frequency directly affects the CPU and memory data exchange speed. The maximum bandwidth of the data transfer depends on the width and frequency of the simultaneous transmission, that is, the data bandwidth = (bus frequency x Data bit width)/8. At present, the CPU front-end bus frequency 266MHz, 333MHz, 400MHz, 533MHz, 800MHz, etc., the higher the front-end bus frequency, representing the CPU and memory data transfer between the larger, more fully play the function of the CPU.

FSB and front-end bus frequency difference and connection is: the speed of the front-end bus refers to the actual speed of the data transfer, FSB this is the CPU and the motherboard synchronization between the speed of operation. Most of the time the front-end speed is greater than the CPU FSB, and the exponential relationship.