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AMD Navi 21

Default
Navi 21
Navi 21 XL
Navi 21 XL
Navi 21 XT
Navi 21 XT
Navi 21 XTX
Navi 21 XTX
Navi 21 KXTX
Navi 21 KXTX
CGI Die Shot
CGI Die Shot
Block Diagram
Block Diagram
AMD's Navi 21 GPU uses the RDNA 2.0 architecture and is made using a 7 nm production process at TSMC. With a die size of 520 mm² and a transistor count of 26,800 million it is a very big chip. Navi 21 supports DirectX 12 Ultimate (Feature Level 12_2). For GPU compute applications, OpenCL version 2.1 can be used. Additionally, the DirectX 12 Ultimate capability guarantees support for hardware-raytracing, variable-rate shading and more, in upcoming video games. It features 5120 shading units, 320 texture mapping units and 128 ROPs. The GPU also contains 80 raytracing acceleration cores.
Further reading: RDNA Whitepaper , RDNA2 ISA

Graphics Processor

Released
Oct 28th, 2020
GPU Name
Navi 21
Codename
Sienna Cichlid
Generation
Navi II
Architecture
RDNA 2.0
Foundry
TSMC
Process Size
7 nm
Transistors
26,800 million
Density
51.5M / mm²
Die Size
520 mm²
Package
BGA-2425

Graphics Features

DirectX
12 Ultimate (12_2)
OpenGL
4.6
OpenCL
2.1
Vulkan
1.3
Shader Model
6.7
WDDM
3.1
GC
10.3.0
Shader ISA
GFX10.3 (gfx1030)
DCN
3.0.0
VCN
3.0.0
SDMA
5.2.0
MP0 / MP1
11.0.7

Render Config

Shading Units
5120
TMUs
320
ROPs
128
Compute Units
80
RT Cores
80
L0 Cache
32 KB per WGP
L1 Cache
128 KB per Array
L2 Cache
4096 KB
L3 Cache
128 MB
Max. TDP
400 W

All RDNA 2.0 GPUs

AMD GPU Architecture History

Graphics cards using the AMD Navi 21 GPU

Name Chip Memory Shaders TMUs ROPs Base Clock Boost Clock Memory Clock
AMD Radeon RX 6900 XT
Navi 21 XTX 16 GB 5120 320 128 1825 MHz 2250 MHz 2000 MHz
AMD Radeon RX 6800 XT
Navi 21 XT 16 GB 4608 288 128 1825 MHz 2250 MHz 2000 MHz
AMD Radeon RX 6800
Navi 21 XL 16 GB 3840 240 96 1700 MHz 2105 MHz 2000 MHz
AMD Radeon RX 6900 XTX
Navi 21 XTXH 16 GB 5120 320 128 2075 MHz 2435 MHz 2250 MHz
AMD Radeon PRO W6800
Navi 21 GL-XL 32 GB 3840 240 96 2075 MHz 2320 MHz 2000 MHz
AMD Radeon Pro W6800X Duo
Navi 21 Pro-XLA 32 GB 3840 240 96 1800 MHz 1967 MHz 2000 MHz
AMD Radeon Pro W6900X
Navi 21 Pro-XTA 32 GB 5120 320 128 1825 MHz 2171 MHz 2000 MHz
AMD Radeon Pro W6800X
Navi 21 Pro-XLA 32 GB 3840 240 96 1800 MHz 2087 MHz 2000 MHz
AMD Radeon PRO V620
Navi 21 XT 32 GB 4608 288 128 1825 MHz 2200 MHz 2000 MHz
AMD Radeon RX 6950 XT
Navi 21 KXTX 16 GB 5120 320 128 1860 MHz 2310 MHz 2250 MHz

Navi 21 GPU Notes

Generation: Navi II
Codename: Sienna Cichlid / Gaming
Ray Tracing Cores: 1st Gen
Infinity Cache: 1st Gen
Graphics/Compute: 10.3.0
Shader ISA: GFX10.3 (gfx1030)
Display Core Next: 3.0.0
Video Core Next: 3.0.0
System DMA: 5.2.0
Platform Security Processor: 11.0.7

Per SIMD32:
- 10 KB Scalar Register File

Per CU:
- 16 KB Vector Data Cache
- 64 KB Local Data Share (GCN-Mode)

Per WGP:
- 16 KB Scalar Data Cache / K Cache
- 32 KB Instruction Cache
- 128 KB Local Data Share
May 2nd, 2024 14:44 EDT change timezone

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