AMD Subsequent-Gen RDNA GPUs Would possibly Characteristic 3D Infinity Cache Expertise, MCM GPUs With 3D Stacking

Written by Jeff Lampkin

It seems like AMD is closely investing in stacked cache and chiplet applied sciences for his or her next-gen CPU & GPU designs. Primarily based on a brand new rumor by Greymon55, it seems like after EPYC & Ryzen, AMD shall be bringing stacked 3D Cache design to RDNA within the type of 3D Infinity Cache.

Subsequent-Gen AMD RDNA GPUs Would possibly Characteristic 3D Infinity Cache Expertise – 3D Stacking Cache on MCM GPUs

With RDNA 2, AMD launched its first-generation Infinity Cache structure which is a quick and high-bandwidth on-die cache that the GPU can shortly entry. The prevailing cache designs might be scaled as much as 128 MB capacities and as much as 2 TB/s bandwidth. With next-gen RDNA 3 GPUs, it has been rumored that the GPUs will double the quantity of Infinity cache with Navi 33 anticipated to supply 256 MB and Navi 31 anticipated to supply as much as 512 MB of Infinity Cache.

Watch The AMD ‘Accelerated Information Middle’ Premiere Stay Occasion Right here – Subsequent-Gen EPYC & Intuition Bulletins

The IFC on Navi 31 GPUs shall be cut up between two chips since it’s an MCM design so it is nonetheless 256 MB per chip. The most recent rumors now counsel that the Infinity Cache can be transferring to a 3D stack design. So we aren’t simply getting MCM GPUs with RDNA 3 however there’s additionally a chance of getting stacking know-how on the next-gen chips. So in whole, AMD may have 3D cache know-how on its whole lineup together with Ryzen, EPYC, and Radeon.

AMD can be going to introduce its server aimed CDNA 2 GPUs right now which would be the first to characteristic an MCM know-how. To date, there have been no studies of Infinity Cache on the present CDNA design however it might be doable that future GPUs may embrace the identical cache stacking know-how as bandwidth demand will increase.

AMD RDNA 3 Navi 3X GPU Configurations (Preliminary)

GPU TitleNavi 21Navi 33Navi 32Navi 31
GPU Course of7nm6nm5nm/6nm5nm/6nm
GPU Package dealMonolithicMonolithicMCMMCM
Shader Engines424 (2 per GCD)6 (3 per GCD)
GPU WGPs402040 (20 per GCD)60 (30 per GCD)
SPs Per WGP128256256256
Compute Items (Per Die) 804080
160 (Whole)
240 (Whole)
Cores (Per Die)5120512051207689
Cores (Whole)512051201024015360
Reminiscence Bus256-bit128-bit192-bit256-bit
Reminiscence SortGDDR6GDDR6GDDR6GDDR6
Infinity Cache128 MB256 MB384 MB512 MB
Flagship SKURadeon RX 6900 XTXRadeon RX 7700 XT?Radeon RX 7800 XT?Radeon RX 7900 XT?
LaunchThis fall 2020This fall 2023?This fall 2023?This fall 2023?

The AMD RDNA 3 ‘Navi 3X’ GPU-powered Radeon RX graphics card lineup is anticipated to supply as much as 3x efficiency enchancment over current RDNA 2 choices. It could mark a significant leap ahead for graphics evolution and now that AMD is already onboard with next-gen applied sciences similar to FSR and Raytracing, anticipate a really heated next-gen competitors between the purple and inexperienced groups.

About the author

Jeff Lampkin

Jeff Lampkin was the first writer to have joined He has since then inculcated very effective writing and reviewing culture at GamePolar which rivals have found impossible to imitate. His approach has been to work on the basics while the whole world was focusing on the superstructures.