Twitter is a well-used social platform when it comes to rumors and leaks. Generally, it is the private profiles that you deal with. This time around, however, it was the head of Intel who inadvertently posted an image that revealed details of what would likely be Thunderbolt 5. It was deleted shortly after, but saved by other things. Anandtic.
The photo was taken at an Intel research center and there is a poster titled “80G PHY Technology” on the wall. This means that Intel is running on a physical layer (PHY) for a bandwidth of 80 Gbps. This means that Thunderbolt 5 in such a case will double 40 Gbps as the current Thunderbolt 4 . port specified for.
In the second line you can read “USB 80G is targeted to support the current USB-C ecosystem”. Since the introduction of Thunderbolt 3, USB Type-C connectors have been used and based on the label, it looks like it’s planned for the next generation as well. They also noted that the speeds will be achieved with a new technology called “PAM-3”. PAM stands for Pulse Amplitude Modulation and is a coding technique. PAM-3 will allow more bits to be transmitted per cycle than current NRZ ciphers, but without the increased complexity, it requires the already existing PAM-4 variant.
What else you can read”[…] The N6 test chip that focus on the new PHY technology works […] Promising results emerge.” TSMC has a node called N6 but when the first word is missing, it could be an acronym for something completely different. From the rest of the sentence, the technology appears to be working in a lab setting with promising results.
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