It's in relation to speed. 533 is slower than 800.
Common speeds for the system bus (motherboard speed) are 1066 MHz, 800 MHz, 533 MHz, and 400 MHz.
The Intel Core 2 Duo uses 400, 533 or 800 Mhz bus speeds, depending on the type.
1600, 1333, 1066, or 800 MHz
BUS speed is used to define how fast data can be copied from one area of the computer to another. The BUS speed can relate to data being moved between memory and the processor, for example. A processor can process at it's peak speed, but the BUS defines how fast the computer can FEED the processor. Two identical processors, one with a 533 mhz FSB and one with an 800 mhz FSB, the 800 mhx FSB will pass data to the processor faster.
computer bus speed FSB starts from 66 MHz to over 800 MHz.
A system bus frequency is 1600 MHz. A CPU frequency is 166 MHz to almost 4GHz.
CPU operates from 166 MHz to more than 3 GHz system can operate from 133 MHz to 400 MHz. CPU is faster than the system bus
333 mhz
200 Mhz
T2330 / T7500 CPU Speed: 1.6 / 2.2 GHz Bus Speed: 533 / 800 GHz Cache Size: 1MB / 4MB Have a look at: http://processorfinder.intel.com/
512MHz and 256 MHz
CPU speed is calculated off of the Front Side Bus (FSB) speed and the CPU Multiplier. Don't confuse HyperTransport (HT) or Quad Data Rate (QDR, aka Quad Pumping) with FSB. HyperTransport and QDR have "replaced" FSB, but they too rely on the FSB. FSB was formerly used as a transport medium for data between the processor, memory and northbridge chipset and is now used more just as a reference clock frequency. FSB * Multiplier = CPU Speed For example, my Sempron 3400+ runs at 2.0 GHz with an 800MHz HyperTransport bus. It runs on a 200 MHz FSB bus and has a multiplier of 10. The HyperTransport multiplier is 4. 200 MHz FSB * 10x Multiplier = 2,000 MHz CPU 200 MHz FSB * 8x HT Multiplier = 800 MHz HyperTransport bus