Thursday, August 29th 2019

AMD Readies Three HEDT Chipsets: TRX40, TRX80, and WRX80

AMD is preparing to surprise Intel with its 3rd generation Ryzen Threadripper processors derived from the "Rome" MCM (codenamed "Castle Peak" for the client-platform), that features up to 64 CPU cores, a monolithic 8-channel DDR4 memory interface, and 128 PCIe gen 4.0 lanes. For the HEDT platform, AMD could reconfigure the I/O controller die for two distinct sub-platforms within HEDT - one targeting gamers/enthusiasts, and another targeting the demographic that buys Xeon W processors, including the W-3175X. The gamer/enthusiast-targeted processor line could feature a monolithic 4-channel DDR4 memory interface, and 64 PCI-Express gen 4.0 lanes from the processor socket, and additional lanes from the chipset; while the workstation-targeted processor line could essentially be EPYCs, with a wider memory bus width and more platform PCIe lanes; while retaining drop-in backwards-compatibility with AMD X399 (at the cost of physically narrower memory and PCIe I/O).

To support this diverse line of processors, AMD is coming up with not one, but three new chipsets: TRX40, TRX80, and WRX80. The TRX40 could have a lighter I/O feature-set (similar to the X570), and probably 4-channel memory on the motherboards. The TRX80 and WRX80 could leverage the full I/O of the "Rome" MCM, with 8-channel memory and more than 64 PCIe lanes. We're not sure what differentiates the TRX80 and WRX80, but we believe motherboards based on the latter will resemble proper workstation boards in form-factors such as SSI, and be made by enterprise motherboard manufacturers such as TYAN. The chipsets made their way to the USB-IF for certification, and were sniffed out by momomo_us. ASUS is ready with its first motherboards based on the TRX40, the Prime TRX40-Pro, and the ROG Strix TRX40-E Gaming.
Source: momomo_us (Twitter)
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51 Comments on AMD Readies Three HEDT Chipsets: TRX40, TRX80, and WRX80

R0H1T, post: 4111897, member: 131092"
That is likely, also the TR2 chips - 2970wx & 2990wx - had 2 CCX to go through a couple of hops IIRC to access memory, they couldn't do it directly. This shouldn't be the case with TR2 & the IO die, not to mention memory support & IF have been enhanced. I'd say up to 32 cores should do just about fine for most tasks, & for higher core counts there'd likely be 8 mem channels.
That is also my thought process that they will be able to have the 2990WX replacement wired just like the 2950X in terms of the memory but the 64 Core will probably be just like the current 2990WX in terms of how it is configured. I am also wondering if the 32 core will be good for gaming if tied directly to the memeory controller for all CCX units..
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