Learn how data transfer speed is measured using MegaTransfers (MT/s) and GigaTransfers (GT/s) ratings. These measurements reflect the actual delivered speed of the bus and channel rather than just the clock frequency.
What are MegaTransfers (MT/s)?
MegaTransfers is a rating of data transfer speed measured in millions of “effective” cycles per second. This rating reflects the actual delivered speed of the bus and channel, rather than just the clock frequency. It is typically stated as “MT/s.” For example, a 400 MHz clock produces 800 MT/sec when time is determined from both the rising and falling edges of the cycle rather than one full cycle.
What are GigaTransfers (GT/s)?
GigaTransfers are the same as MegaTransfers, but on a much larger scale. Instead of a rating in millions of cycles per second, GigaTransfers are rated in billions of cycles per second and are stated as “GT/s.” For example, an 800 MHz clock generates 1.6 GT/sec when the data rate is doubled.
Why do MT/s and GT/s ratings matter?
The MT/s and GT/s ratings matter because they give an accurate representation of the actual data transfer speed rather than just the clock frequency. This is important because it allows for a better understanding of the capabilities of a system’s bus and channel, which can affect overall performance.
Conclusion
Understanding MegaTransfers and GigaTransfers is important for understanding how data transfer speed is measured. The MT/s and GT/s ratings provide an accurate representation of actual data transfer speed rather than just the clock frequency. This information is crucial for determining the capabilities and overall performance of a system’s bus and channel.
FAQ
- What is the difference between MegaTransfers and GigaTransfers? MegaTransfers are rated in millions of cycles per second while GigaTransfers are rated in billions of cycles per second.
- Do MT/s and GT/s ratings affect overall system performance? Yes, these ratings allow for a better understanding of the capabilities of a system’s bus and channel, which can affect overall performance.
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