amd rdna 3 gpus for radeon rx 7000 graphics cards in detail with new navi 31 navi 32 and navi 33
amd rdna 3 gpus for radeon rx 7000 graphics cards in detail with new navi 31 navi 32 and navi 33

The details of AMD’s RDNA 3 GPUs, including the Navi 31, Navi 32, and Navi 33 chips that will power their upcoming Radeon RX 7000 series graphics cards, are covered in great depth by tech publication Angstronomics.

According to previously leaked information found in the Linux patches, there will be at least four RDNA 3 IPs released for the consumer market. These comprise an APU design, Navi 31, Navi 32, and Navi 33.

GFX900VEGA 10GCN 5.0RX VEGA / Radeon Pro
GFX902RAVENRaven Ridge / PicassoGCN 5.0Ryzen 2000/3000(G/GE)
GFX904VEGA 12GCN 5.0Vega Pro 20 (MAC)
GFX906VEGA 20GCN 5.0Radeon VII / Radeon Pro VII
GFX90AAldebaranCDNA 2Instinct MI200
GFX909RENOIRGCN 5.0Ryzen 4000(H/U/G)
GFX1010NAVI 10RDNA 1RX 5700/5600(M/XT)
GFX1012NAVI 14RDNA 1RX 5500 (M/XT)
GFX1030NAVI 21Big Navi / Sienna CichlidRDNA 2RX 6900/6800 Series
GFX1031NAVI 22Navy FlounderRDNA 2RX 6700 Series
GFX1032NAVI 23Dimgrey CavefishRDNA 2RX 6600 Series
GFX1033NAVI 24Beige GobyRDNA 2RX 6500/6400 Series
GFX1033Van GoghAerithRDNA 2Steam Deck
GFX1036 Navi 2XRaphaelRDNA 2Radeon 700M
GFX1100Navi 31Plum BonitoRDNA 3Radeon RX 7000
GFX1101Navi 32 Wheat NasRDNA 3Radeon RX 7000
GFX1102Navi 33 Hotpink BonefishRDNA 3Radeon RX 7000
GFX1103Navi 3XPhoenix / Pink SardineRDNA 3Radeon 700M
GFX1200Navi 4XRDNA 4Radeon RX 8000?

Angstronomics has recently published data on die sizes, GPU setups, and features that could appear in finished retail goods. An intriguing claim made by the tech publication claims that Navi 3X GPU configurations were initially conceptualized in 2019 and then finalized at some point in 2020. These standards have not changed subsequently, although several rumors have identified two different GPU specifications, indicating that AMD may have altered their final designs or that the rumors were untrue. Look at the standard configurations of the Navi 3x “RDNA 3” GPU lineup.

amd rdna 3 navi 3x gpu skus scaled image 01
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AMD revealed that their RDNA 3 GPUs, which feature a significant performance boost, will be released later this year. David Wang, Senior Vice President of Engineering, Radeon Technologies Group, stated that the new GPUs for the Radeon RX 7000 series will provide a 50% increase in performance per watt over the RDNA 2 GPUs now in use. The following are some of the significant RDNA 3 GPU characteristics that AMD will highlight-

  • 5nm Process Node
  • Advanced Chiplet Packaging
  • Rearchitected Compute Unit
  • Optimized Graphics Pipeline
  • Next-Gen AMD Infinity Cache
  • >50% Perf/Watt vs. RDNA 2

Gamers should expect fluid 4K gameplay to be buttery smooth on these graphic cards. With the FidelityFX suite’s support for next-generation FSR, SAS, and SAM, we might see workable 60 FPS at 8K resolution.

AMD Navi 31 “Plum Bonito” GPU Configuration

The Radeon RX 7900 XT graphics card and other next-generation enthusiast cards would be powered by AMD Navi 31 GPU, the top-tier RDNA 3 processor. We’ve heard that AMD would replace its next-generation RDNA 3 GPUs’ compute units with workgroup processors. Dual CU will be housed in each WGP, but there will be four SIMD32 clusters per CU instead of two on each CU in RDNA 2. According to rumors, AMD has the choice of the 6nm die from TSMC or Samsung.

  • AMD Navi 31: 308mm2 GPU Die @5nm, 12288 Cores, 384-bit Bus, 192 MB Infinity Cache.
  • AMD Navi 21: 520mm2 GPU Die @7nm, 5120 Cores, 384-bit Bus, 128 MB Infinity Cache.

According to the most recent information, the AMD Navi 31 GPU with RDNA 3 architecture is anticipated to feature a single GCD with 48 WGPs, 12 SAs, and 6 SEs. There will be a total of 12,288 stream processors distributed as a result. This represents a 2.4x increase in cores above the 5120 SPs found in the Navi 21 GPU. According to reports, the Navi 31 GCD, often known as the GPU, would be packaged on TSMC’s 5nm production node and measure 308mm2.

amd radeon rx graphics image 02

The Navi 31 GPU will also include 6 MCDs, each of which will have a 16 MB Infinity Cache. Additionally, these MCDs are anticipated to include 64-bit (32-bit x 2) memory controllers, giving the device a 384-bit bus interface. There is a 3D-Stacked solution in development that would increase the Infinity Cache with 32 MB (16 MB 0-hi + 16 MB 1-hi) capacity for a total of 192 MB of cache, even though this equates to 96 MB of Infinity Cache, which is less than the 128 MB featured on the current Navi 21 GPUs. With a 50% improvement over the current Navi 21 design, Navi 31 is the first GPU to feature chipset and 3D layered designs. These chipsets, also known as MCDs, will be produced on TSMC’s 6nm production node and have a 37.5mm2 surface area each.

The source claims that a 288 MB (16 MB 0-Hi + 16 MB 1-Hi + 16 MB 2-Hi) MCD package was originally intended but was abandoned for cost-benefit considerations. There are rumors of a scaled-down Navi 31 GPU, which will have 42 WGPs or 10,752 cores, 5 MCDs for 80MB Infinite Cache, and a 320-bit bus interface.

As a result, there will be a higher power draw, and AMD appears to have confirmed this. However, their array of next-generation graphics cards will still be more energy-efficient than what NVIDIA has to offer, despite having higher power usage. For a >2x performance increase, the AMD Radeon RX 6950 XT already has a TBP of 335W. The revised triple-fan cooling design, a little bit bigger than the one presently in use, is expected to remain on the cards, along with its dual 8-pin connector input for power.

AMD Navi 32 “Wheat Nas” GPU Configuration-

One of the two MCM GPUs in the RDNA 3 range is the AMD Navi 32 GPU, known by the codename “Wheat Nas.” The GPU will have four MCDs and one GCD (Graphics Compute Dies) (Multi-Cache Die). While each MCD will remain the same size at 37.5mm2, the GPU or GCD is claimed to measure 200mm2.

  • AMD Navi 32: 200mm2 GPU Die, 7680 Cores, 256-bit Bus, 64 MB Infinity Cache
  • AMD Navi 22: 335mm2 GPU Die @7nm, 192-bit Bus, 2560 Cores, and 96 MB Infinity Cache
amd radeon rx graphics 7000 1440p image 01

The GCD will have three shader engines, each of which has six shader arrays (18 in total). The GPU will have 60 compute units, or 30 WGP, for a total of 7680 cores. This adds up to more than half as many cores as the Navi 31 flagship.

Additionally, each MCD should have two memory connect links (32-bit). A 256-bit bus interface provides a total of 8 32-bit memory controllers available. Each MCD will continue to have a 16 MB 0-Hi capacity, but there does not appear to be a 1-Hi option, so the chip will only have a 64 MB maximum number of configurations. According to reports, the Navi 32 GPU will debut in 2023 and become a top mobile processor and a mid-tier desktop chip. Since we would have Phoenix Range and Dragon Range laptops with Zen 4 cores available by then, it makes sense that the GPU would be released first for the mobile segment and might be unveiled at CES 2023.

AMD Navi 33 “Hotpink Bonefish” GPU Configuration-

The monolithic part of the RDNA 3 family will begin with the AMD Navi 33 GPU, sometimes known as “Hotpink Bonefish.” A single die will be present in the GPU. The device, expected to be fabricated using a 6nm production node and have a die size of 203mm2, is extremely comparable to the flagship Navi 21 GPU.

  • AMD Navi 33: 4096 Cores, 128-bit Bus, 32 MB Infinity Cache, 335mm2 GPU Die @6nm
  • AMD Navi 23: 2048 Cores, 128-bit Bus, 32 MB Infinity Cache, 237mm2 GPU Die @7nm
amd radeon rx graphics 7000 1080p image 01

The Navi 33 GCD is anticipated to include two Shader Engines, each containing two Shader Arrays (two per SE, for a total of four). This amounts to 16 WGPs or 32 Compute Units, more than the Radeon RX 6800 “Navi 21 XL” GPU’s 4096 cores. A 128-bit wide bus and 32 MB of Infinity Cache, the same quantity as the Navi 23 GPU, will be included in the GPU’s packaging. The Navi 33 processors, like the Navi 32 GPUs, will primarily focus on the mobile portfolio. Early graphics performance will place them ahead of the Intel Arc Alchemist series at less than half as much and consume less power.

The source also discusses two additional capabilities available on AMD RDNA 3 Navi 3x GPUs for Radeon RX 7000 series graphics cards.

According to sources, the flagship Navi 31 GPU will be on sale first, followed by the Navi 32 and Navi 33 GPUs in the AMD Radeon RX 7000 “RDNA 3” GPU portfolio based on the Nav 3x GPUs.

AMD RDNA 3 Navi 3X GPU Configurations

CodenameSienna CichlidHotpink BonefishWheat NasPlum BonitoTBD
GPU Process7nm6nm5nm/6nm5nm/6nm5nm/6nm
GPU PackageMonolithicMonolithicMCM (1 GCD + 4 MCD)MCM (1 GCD + 6 MCD)MCM (TBD)
GPU Die Size520mm2203mm2 (Only GCD)200mm2 (Only GCD)
425mm2 (with MCDs)
308mm2 (Only GCD)
533mm2 (with MCDs)
Shader Engines42468
GPU WGPs4016304864
SPs Per WGP128256256256256
Compute Units (Per Die)80326096128 (per GPU)
256 (Total)
Cores (Per Die)512040967680122888192
Cores (Total)5120409676801228816,384
Memory Bus256-bit128-bit256-bit384-bit384-bit x2?
Memory CapacityUp To 16 GBUp To 8 GBUp To 16 GBUp To 24 GBUp To 32 GB
Memory Speed16-18 GbpsTBDTBD20 GbpsTBD
Memory Bandwidth512-576 GB/sTBDTBD960 GB/sTBD
Infinity Cache128 MB32 MB64 MB96/192 MBTBD
Flagship SKURadeon RX 6900 XTXRadeon RX 7600 XT?Radeon RX 7800 XT?
Radeon RX 7700 XT?
Radeon RX 7900 XT?Radeon Pro
LaunchQ4 2020Q4 2022?Q4 2022?Q4 2022?2023?


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