AMD may move away from fixed Compute Units with the arrival of the next generation RDNA3. According to a series of rumors, the flagship Navi 31 chipset is made up of thirty ‘Work Group Processors’ (WGP), which together account for 15,360 separate graphics processing cores.
The rumor originates from the Beyond3D forum . A user by the name of Bondrewd is responding to a previous claim by kopite7kimi, which has recently leaked or predicted truthful information about video cards. Both internet figures apparently agree on the amount of 15,360 cores on the Navi 31 chipset, but Bondrewd shimmers by having more insight into the disappearance of the fixed Compute Units and the overall architecture.
The introduction of WGP clusters seems to match with previous rumors of AMD’s next-generation graphics processors. Around the turn of the year, insiders were already talking about a chiplet design for Navi 31. At the time, it was still about “two chips of 80 Compute Units each” and a total of 10,240 computing cores.
Recently, some uncertainty arose about the memory of the Navi 31 GPU. Twitter insider @greymon55, among others, would speak of a 512MB Infinity Cache — four times the current maximum — and a 256-bit memory bus. Earlier, the same person hinted that the Navi 33 GPU at least does not adopt a chiplet design.
AMD’s Navi 3x generation is likely to kick off in the third or fourth quarter of 2022. It is expected that the RDNA3 generation (and with it the Radeon RX 7000 standard) will switch to 5nm or 6nm processes from chip maker TSMC.
Many of the details are still in the dark — as well as internal information that now turns out to be correct, may change in the coming period.
The previous two RDNA generations have so far stuck to the 7nm process from the same manufacturer, as well as monolithic construction with a few chipsets, instead of multiple chiplets.
Source: Beyond3D
