NVIDIA GeForce RTX 4090 Max-Q vs AMD Radeon RX 6450M
GPU · Specs Compare
Graphics Card
Release Date
Jan 2023
Jan 2023
Generation
GeForce 40 Mobile
Navi Mobile
Type
Mobile
Mobile
Bus Interface
PCIe 4.0 x16
PCIe 4.0 x4
Clock Speeds
Base Clock
930 MHz
2000 MHz
Boost Clock
1455 MHz
2460 MHz
Memory Clock
1750 MHz
2000 MHz
Memory
Memory Size
16GB
4GB
Memory Type
GDDR6
GDDR6
Memory Bus
256bit
64bit
Bandwidth
448.0GB/s
128.0GB/s
Render Config
SM Count
76
—
Shading Units
9728
768
TMUs
304
48
ROPs
112
32
Tensor Cores
304
—
RT Cores
76
12
L1 Cache
128 KB (per SM)
128 KB per Array
L2 Cache
64 MB
1024 KB
Compute Units
—
12
L3 Cache
—
16 MB
Theoretical Performance
Pixel Rate
163.0 GPixel/s
78.72 GPixel/s
Texture Rate
442.3 GTexel/s
118.1 GTexel/s
FP16 (half)
28.31 TFLOPS
7.557 TFLOPS
FP32 (float)
28.31 TFLOPS
3.779 TFLOPS
FP64 (double)
442.3 GFLOPS
236.2 GFLOPS
Graphics Processor
GPU Name
AD103
Navi 24
GPU Variant
GN21-X11
Navi 24 XML
Architecture
Ada Lovelace
RDNA 2.0
Foundry
TSMC
TSMC
Process Size
4 nm
6 nm
Transistors
45.9 billion
5.4 billion
Die Size
379 mm²
107 mm²
Board Design
TDP
80W
50W
Outputs
Portable Device Dependent
Portable Device Dependent
Power Connectors
None
None
Graphics Features
DirectX
12 Ultimate (12_2)
12 Ultimate (12_2)
OpenGL
4.6
4.6
OpenCL
3.0
2.2
Vulkan
1.3
1.3
CUDA
8.9
—
Shader Model
6.7
6.7
▲ Specs Compare
Data sourced from official specifications and benchmark tests.