News SiFive Tapes Out First 5nm TSMC RISC-V Chip With 7.2 Gbps HBM3

Kamen Rider Blade

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Dec 2, 2013
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As long as we are still talking about one-bit-per-baud busses, the two are fundamentally interchangeable: each data pin of a 7.2GT/s bus is carrying 7.2Gbps.
While that may be true, shouldn't we try to use the correct unit to represent what's being transferred instead of the more common colloquialism?

This way, moving foreward, more people will start to understand the difference!
 

InvalidError

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While that may be true, shouldn't we try to use the correct unit to represent what's being transferred instead of the more common colloquialism?
Using Gbps is pretty standard for chip manufacturers describing the bandwidth-per-pin/lane density of their interfaces.

GT/s will become awkward when more devices start using PAM4 and higher signaling like GDDR6X has. What is the GT/s rate of 19Gbps GDDR6X? Hint: the correct answer is not 19GT/s since GDDR6X uses PAM4 (2bits/baud) signaling.
 
Jan 16, 2021
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If RISC-V becomes the new king of of raspberry pi, a decade of development will be stretched two decades more.
 

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