AMD Navi 3X RDNA3 GPU household highlighted in new fan-made renders

AMD Navi 33 may be greater than some would possibly anticipate

Over at Wild_C‘s Twitter one can discover stunning renders of the Navi 3X GPU household. 

AMD Navi 3X GPU Household, Supply: @Wild_C

These renders usually are not solely primarily based on the most recent info resembling AMD confirming six MCD’s for Navi 31, but in addition designed to be considerably throughout the identical scale. As we all know, AMD is engaged on a minimum of three Navi 3X GPUs for its Radeon 7000 sequence. Two of which shall be primarily based on a chiplet design with GCD (Graphics Core/Compute Die) and MCD (Reminiscence Advanced/Compute Dies). Which means that design and measurement approximation are a bit harder than earlier than.

It isn’t but confirmed how giant Navi 3X GPUs shall be, nonetheless, lately rumor of Navi 31 GCD measurement has added some variables for hypothesis and educated guesses. Wild_C got here up with the next die sizes, which as he says, are only a tough approximation.

I ought to most likely checklist the die sizes used as nicely:

Navi33 = 20.5 * 19.5 = 400mm²
Navi31/32 MCD = 4.68 * 9.36 = 44mm²
Navi32 GCD = 13.1 * 20.1 = 263mm²
Navi31 GCD = 13.1 * 28.2 = 369mm²
Navi32 Complete = 439mm²
Navi31 Complete = 633mm²

Don’t anticipate these to be actual although

— Wild_C (@_wildc) July 21, 2022

AMD Navi 31 is the flagship GPU primarily based on RDNA3 structure, that includes as many as 48 WorkGroup Processors (WGP) and as much as 12288 Stream Processors. It’s designed to help six MCDs sitting proper beside the GPU, which is considerably comparable strategy to GPUs with Excessive Bandwidth Reminiscence. AMD has been pioneering such designs for a very long time now (Fiji, Vega), however right here reminiscence will not be situated on the GPU package deal, however the controllers and Infinity Cache are. This GPU would have a GCD die measurement inside 350 to 370 mm², which counsel that the total GPU (not package deal) may be someplace in between 590 and 630 mm².

AMD Navi 3X GPU Household, Supply: @Wild_C

AMD Navi 32 is similar to Navi 31, besides it has fewer MCDs and fewer cores. This chip ought to supply as much as 32 WGPs and as much as 8192 Stream Processors. It’s anticipated to be round 440 mm² giant, from this 260 mm² is simply the GCD alone.

The slowest RDNA3 GPU often known as Navi 33 wouldn’t be a lot smaller than Navi 32. Nevertheless not like the earlier chips, this one will not be primarily based on chiplets however on an old style monolithic design. Moreover, it isn’t utilizing TSMC 5nm course of however solely 6nm. What this basically means is the GPU may be cheaper to make (no superior packaging required), however the design Graphics Advanced or Infinity Cache to be fused collectively. All that makes the GPU bigger.

AMD RDNA3 structure needs to be revealed within the fourth quarter this yr. It’s believed that Navi 31 would be the first GPU to take shed its cowl adopted by Navi 32 and Navi 33 later.

Supply: Wild_C