In Both sTRX4 and sWRX8 Variants
Taken from TPU … AMD is preparing to launch the Ryzen Threadripper 5000 “Chagall” HEDT processors in August 2021, according to a MoePC report, confirming a rumor from April 2021. These chips will arrive in core-counts of up to 64, spanning two CPU socket types—sTRX4 (Ryzen Threadripper) and sWRX8 (Ryzen Threadripper PRO), and compatible with existing motherboards that run Ryzen 3000 Threadrippers, requiring a UEFI firmware update. Nearly every retail sTRX4 motherboard we’ve come across features USB BIOS Flashback, letting you update the firmware of an off-the-shelf motherboard without needing to install a compatible processor.
What’s new with the Ryzen Threadripper 5000 is the new “Zen 3” CCDs, which place all 8 CPU cores of the die into a single CCX, sharing a unified 32 MB L3 cache. The I/O is identical to the previous generation, with the sTRX4 chips featuring quad-channel DDR4 interface, and sWRX8 ones featuring 8-channel, both with ECC; and up to 88 PCI-Express Gen 4 lanes. AMD also slightly increased the xGMI2 bandwidth to 18 GT/s, from 16 GT/s on the Ryzen Threadripper 3000 series.