The latest details of AMD's mid-range Navi 33 GPU based on the RDNA 3 architecture that will power the Radeon RX 7700 XT graphics card have been detailed by Moore's Law is Dead in his latest video.

AMD Radeon RX 7700 XT Graphics Card To Utilize Navi 33 RDNA 3 GPU With Equal To 6900 XT Rasterization, Faster in Raytracing And Higher Efficiency Than NVIDIA Lovelace

The AMD RDNA 3 GPU lineup will consist of both monolithic and multi-chiplet solutions. The Navi 33 GPU is considered a mid-range chip and is an optimization of the Navi 21 GPU on the newer RDNA 3 architecture. It is based on a 6nm monolithic design and should measure between 360-460mm2. That's an 11 to 30 percent reduction in die area compared to the Navi 21 GPU which is powering the high-end Radeon RX 6000 lineup and features a die size of 520mm2. Key features of the Navi 33 GPU are going to be:

TSMC 6nm process node (Monolithic GPU design)RDNA 3 graphics core (Increased clocks/efficiency)8 GB GDDR6 Memory Optimized Across a 128-bit busFaster GDDR6 Memory SpeedsRasterization Performance Equal or Greater Than RX 6900 XTRay tracing Performance Greater Than RX 6900 XT

AMD RDNA 3 Navi 33 GPUs For Radeon RX 7700 Series

The AMD Navi 33 GPU will start the monolithic segment within the RDNA 3 family. The GPU will feature a single die. The die is very similar to the flagship Navi 21 GPU and is expected to utilize a 6nm process node for fabrication.

AMD Navi 33 GPU Architectural Design 'Rumored'

The Navi 33 GCD is expected to feature 2 Shader Engines and each Shader Engine has 2 Shader Arrays (2 per SE / 4 in total). Each Shader Array was previously expected to be composed of 5 WGPs (10 per SE / 20 total) and each WGP features 8 SIMD32 units with 32 ALUs (40 SIMD32 per SA / 80 per SE / 160 total). These SIMD32 units combine to make up 5120 cores which is the same core count as the RX 6900 XT (Navi 21 XTX GPU).

A preliminary block diagram of AMD's next-gen RDNA 3 based Navi 33 GPU that will power the flagship Radeon RX 7600 XT graphics card. (Image Credits: Olrak)

However, based on the new numbers, the RDNA 3 Navi 33 GPU will feature a total of 16 WGPs or 4096 cores. Now we don't know if this is the particular configuration of the chip itself that's been updated or the new Radeon RX 7000 cards will feature a cut-down configuration of the Navi 33 chips with 1 WGP disabled in each Shader Array. It is stated that a lot of structures of RDNA 3 are larger, smaller, or entirely different than RDNA 3 which makes the architecture a brand new design rather than an RDNA 2 revision.

Navi 33 is essentially going to be a Navi 23 replacement on the GFX11 architecture and we know that Navi 23 only features 2048 cores, half the amount that's allegedly featured on Navi 33. The Navi 23 GPU has been featured on the Radeon RX 6600 series cards so one can assume that Navi 33 will power AMD's RX 7600 series lineup unless AMD wants to move their lineup one tier up with Navi 31 powering RX 7900 series, Navi 32 powering RX 7800 series & Navi 33 powering RX 7700 series. The RX 7600 lineup and below would end up being based on the refreshed 6nm RDNA 2 GPUs as reported here.

AMD RDNA 3 Navi 3X GPU Configurations (Preliminary)