NVIDIA GeForce RTX 5080 Mobile vs AMD Radeon RX 550X Mobile
GPU Specs Compare
Graphics Card
Release Date
Apr 2025
Apr 2018
Generation
GeForce 50 Mobile
Mobility Radeon
Type
Mobile
Mobile
Bus Interface
PCIe 5.0 x16
PCIe 3.0 x8
Clock Speeds
Base Clock
975 MHz
1100 MHz
Boost Clock
1500 MHz
1176 MHz
Memory Clock
1750 MHz
1500 MHz
Memory
Memory Size
16GB
2GB
Memory Type
GDDR7
GDDR5
Memory Bus
256bit
64bit
Bandwidth
896.0GB/s
48.00GB/s
Render Config
SM Count
60
-
Shading Units
7680
640
TMUs
240
40
ROPs
96
16
Tensor Cores
240
-
RT Cores
60
-
L1 Cache
128 KB (per SM)
16 KB (per CU)
L2 Cache
64 MB
512 KB
Compute Units
-
10
Theoretical Performance
Pixel Rate
144.0 GPixel/s
18.82 GPixel/s
Texture Rate
360.0 GTexel/s
47.04 GTexel/s
FP16 (half)
23.04 TFLOPS
1.505 TFLOPS
FP32 (float)
23.04 TFLOPS
1.505 TFLOPS
FP64 (double)
360.0 GFLOPS
94.08 GFLOPS
Graphics Processor
GPU Name
GB203
Polaris 23
Architecture
Blackwell 2.0
GCN 4.0
Foundry
TSMC
GlobalFoundries
Process Size
5 nm
14 nm
Transistors
45.6 billion
2.2 billion
Die Size
378 mm²
103 mm²
GPU Variant
-
Polaris 23 MXT
Board Design
TDP
80W
50W
Suggested PSU
550 W
-
Outputs
Portable Device Dependent
No outputs
Power Connectors
None
None
Graphics Features
DirectX
12 Ultimate (12_2)
12 (12_0)
OpenGL
4.6
4.6
OpenCL
3.0
2.1
Vulkan
1.4
1.2
CUDA
12.0
-
Shader Model
6.8
6.4