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Thunderbolt 5 (Probably) is Leaked, with Max. Speed of 80Gbps and PAM-3 Protocol

KokodayoCN

Intel's EVP&GM accidently leaked information about Thunderbolt 5.

 

EVP&GM of Intel’s Client Computing GroupGregory Bryant, visited a lab in Israel on Aug. 1 and posted a tweet, but clearly he did not check the picture carefully since it seems like the picture contains information about Thunderbolt 5.

 

Original Tweet (Gregory M Bryant (@gregorymbryant) August 1, 2021):

Quote

 

Day 1 with the @intel Israel team in the books. Great views…incredible opp to see @GetThunderbolt innovation …a validation lab tour and time with the team…can’t wait to see what tomorrow brings! pic.twitter.com/GKOddA6TNi

 

 

P.S. By the time this news is posted on LTT Forum, the original post has already modified, and the most important picture was removed.

 

Photo of Thunderbolt 5 Showcase - AnandTech

Picture source: AnandTech

 

On the poster, it says 80G PHY Technology, which means the new Thunderbolt 5 will have a max. speed of 80Gbps, which is twice of Thunderbolt 4's speed. Thunderbolt 5 will keep using Type-C and downwards compatible. Also, on the poster, it says "… will be based on a novel PAM-3 modulation technology", which means in order to support a higher bandwidth, the Thunderbolt 5 will use PAM-3 as its protocol. On the final line the poster mentions the N6 test chip, which supports this new PHY technology seems to be able to demonstrate a promising result. On the screen it might be a showcase for showing Thunderbolt 5's speed, probably on a PC running the N6 chip (probably a TSMC chip).

 

Overall, in the world where Thunderbolt 4 is not universal yet, Thunderbolt 5 is already on the way.

 

Source:

Intel Executive Posts Thunderbolt 5 Photo then Deletes It: 80 Gbps and PAM-3

https://www.anandtech.com/show/16858/intel-executive-posts-thunderbolt-5-photo-80-gbps-and-pam3-then-deletes-it

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12 minutes ago, Smith ZHOU said:

PAM-3

In case you're like me and you're wondering what nonsense PAM-3 is, here's a chart:

 

image.png.8c6a904e7201847755a67ec70f7b5403.png

 

Spoiler: they use two symbols to get three bits.

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Network:

Spoiler
                           ┌─────────────── Office/Rack ────────────────────────────────────────────────────────────────────────────┐
Google Fiber Webpass ────── UniFi Security Gateway ─── UniFi Switch 8-60W ─┬─ UniFi Switch Flex XG ═╦═ Veda (Proxmox Virtual Switch)
(500Mbps↑/500Mbps↓)                             UniFi CloudKey Gen2 (PoE) ─┴─ Veda (IPMI)           ╠═ Veda-NAS (HW Passthrough NIC)
╔═══════════════════════════════════════════════════════════════════════════════════════════════════╩═ Narrative (Asus USB 2.5G NIC)
║ ┌────── Closet ──────┐   ┌─────────────── Bedroom ──────────────────────────────────────────────────────┐
╚═ UniFi Switch Flex XG ═╤═ UniFi Switch Flex XG ═╦═ Byarlant
   (PoE)                 │                        ╠═ Narrative (Cable Matters USB-PD 2.5G Ethernet Dongle)
                         │                        ╚═ Jesta Cannon*
                         │ ┌─────────────── Media Center ──────────────────────────────────┐
Notes:                   └─ UniFi Switch 8 ─────────┬─ UniFi Access Point nanoHD (PoE)
═══ is Multi-Gigabit                                ├─ Sony Playstation 4 
─── is Gigabit                                      ├─ Pioneer VSX-S520
* = cable passed to Bedroom from Media Center       ├─ Sony XR65A80K (Google TV)
** = cable passed from Media Center to Bedroom      └─ Work Laptop** (Startech USB-PD Dock)

 

Retired/Other:

Spoiler

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TrueNAS Server (La Vie en Rose): Xeon E3-1241v3 | Supermicro X10SLL-F | Corsair H60 | 32GB Micron DDR3L ECC 1600MHz | 1x Kingston 16GB SSD / Crucial MX500 500GB

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