AMD Radeon 550X Mobile vs NVIDIA RTX PRO 4500 Blackwell Workstation
GPU Specs Compare
Graphics Card
Release Date
Apr 2018
Mar 2025
Generation
Mobility Radeon
Blackwell PRO W
Type
Mobile
Desktop
Bus Interface
PCIe 3.0 x8
PCIe 5.0 x16
Clock Speeds
Base Clock
1100 MHz
1635 MHz
Boost Clock
1287 MHz
2407 MHz
Memory Clock
1500 MHz
1750 MHz
Memory
Memory Size
4GB
32GB
Memory Type
GDDR5
GDDR7
Memory Bus
64bit
256bit
Bandwidth
48.00GB/s
896.0GB/s
Render Config
Compute Units
10
-
Shading Units
640
10496
TMUs
40
328
ROPs
16
112
L1 Cache
16 KB (per CU)
128 KB (per SM)
L2 Cache
256 KB
64 MB
SM Count
-
82
Tensor Cores
-
328
RT Cores
-
82
Theoretical Performance
Pixel Rate
20.59 GPixel/s
269.6 GPixel/s
Texture Rate
51.48 GTexel/s
789.5 GTexel/s
FP16 (half)
1.647 TFLOPS
50.53 TFLOPS
FP32 (float)
1.647 TFLOPS
50.53 TFLOPS
FP64 (double)
103.0 GFLOPS
789.5 GFLOPS
Graphics Processor
GPU Name
Polaris 23
GB203
GPU Variant
Polaris 23 MXT
-
Architecture
GCN 4.0
Blackwell 2.0
Foundry
GlobalFoundries
TSMC
Process Size
14 nm
5 nm
Transistors
2.2 billion
45.6 billion
Die Size
103 mm²
378 mm²
Board Design
TDP
50W
200W
Outputs
No outputs
4x DisplayPort 2.1b
Power Connectors
None
1x 16-pin
Suggested PSU
-
550 W
Graphics Features
DirectX
12 (12_0)
12 Ultimate (12_2)
OpenGL
4.6
4.6
OpenCL
2.1
3.0
Vulkan
1.2
1.4
Shader Model
6.4
6.9
CUDA
-
12.0