AMD Radeon 550X Mobile vs NVIDIA GeForce RTX 4090 Mobile
GPU · Specs Compare
Graphics Card
Release Date
Apr 2018
Jan 2023
Generation
Mobility Radeon
GeForce 40 Mobile
Type
Mobile
Mobile
Bus Interface
PCIe 3.0 x8
PCIe 4.0 x16
Clock Speeds
Base Clock
1100 MHz
1335 MHz
Boost Clock
1287 MHz
1695 MHz
Memory Clock
1500 MHz
2250 MHz
Memory
Memory Size
4GB
16GB
Memory Type
GDDR5
GDDR6
Memory Bus
64bit
256bit
Bandwidth
48.00GB/s
576.0GB/s
Render Config
Compute Units
10
—
Shading Units
640
9728
TMUs
40
304
ROPs
16
112
L1 Cache
16 KB (per CU)
128 KB (per SM)
L2 Cache
256 KB
64 MB
SM Count
—
76
Tensor Cores
—
304
RT Cores
—
76
Theoretical Performance
Pixel Rate
20.59 GPixel/s
189.8 GPixel/s
Texture Rate
51.48 GTexel/s
515.3 GTexel/s
FP16 (half)
1.647 TFLOPS
32.98 TFLOPS
FP32 (float)
1.647 TFLOPS
32.98 TFLOPS
FP64 (double)
103.0 GFLOPS
515.3 GFLOPS
Graphics Processor
GPU Name
Polaris 23
AD103
GPU Variant
Polaris 23 MXT
GN21-X11
Architecture
GCN 4.0
Ada Lovelace
Foundry
GlobalFoundries
TSMC
Process Size
14 nm
5 nm
Transistors
2.2 billion
45.9 billion
Die Size
103 mm²
379 mm²
Board Design
TDP
50W
120W
Outputs
No outputs
Portable Device Dependent
Power Connectors
None
None
Graphics Features
DirectX
12 (12_0)
12 Ultimate (12_2)
OpenGL
4.6
4.6
OpenCL
2.1
3.0
Vulkan
1.2
1.3
Shader Model
6.4
6.8
CUDA
—
8.9
▲ Specs Compare
Data sourced from official specifications and benchmark tests.