Twitter leaker Greymon55 corrected the memory connection data previously mentioned for the upcoming RDNA3 GPUs Navi 31 and 32. So Navi 31 should use a 384-bit bus instead of a 256-bit bus. Another leak also revealed new alleged findings on the construction of Navi 31.
The rumors about AMD’s next GPU generation with RDNA3 architecture are currently spreading. Because the well-known Twitter leaker Greymon55 now claims that the memory connections of the GPUs Navi 31 and 32 should differ from the values rumored some time ago. While Navi 31 was said to have 256 bits, Greymon55 now corrects the value upwards to 384 bits. According to the leaker, the memory connection for Navi 32 is also incorrect. Here it should not be 192 bits, but 256 bits.
This supposed new data would also be accompanied by a change in the memory transfer rate. Assuming that all graphics cards of the RDNA3 architecture have at least GDDR6 memory with a speed of 18 Gbit/s, a memory transfer rate of 864 GB/s would be achieved for Navi 31, which Infinity Cache does not take into account. Navi 32 would get 576 GB/s, while Navi 33 would stay at 288 GB/s.
Also changes to the MCM design?
Not only Greymon55 seems to know the latest information about AMD’s RDNA3 GPUs, but also the Reddit community “AMDGPU”, whose Twitter account also leaked unconfirmed data on the design and construction of the Navi 31. The RDNA3 flagship is said to have a Graphics Compute Die (GCD) and six Memory Compute Die (MCD). This would make Navi 31’s MCM design different from previous speculation.
Appropriate: Radeon RX 7000 Rumor: Leaker names code names for Navi 31 and identifier for Navi 41
Because the Graphics Compute Die would keep its monolithic format in 5nm and thus would not exist twice, while the multi-chip component would only affect the L3 / Infinity cache subsystem of the GPU. The AMDGPU Twitter account has created its own representation of the structure of the Navi 31 GPU:
Navi31 GPU build from “AMDGPU”
Source: AMDGPU
Meanwhile, the new RDNA3 graphics cards from AMD are expected in autumn of this year – September is considered the latest. There is still some time until then, which rumors are known to be impossible to ignore. Only the official release of the Radeon RX 7000 cards can confirm whether the numerous assumptions, which, as in this case, are revised once, hit the mark.
Source: Greymon55 and AMDGPU via Videocardz
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