AMD Radeon RX 7400 vs AMD Radeon RX 550 Mobile
GPU Specs Compare
Graphics Card
Release Date
Aug 2025
Jul 2017
Generation
Navi III
Mobility Radeon
Type
Desktop
Mobile
Bus Interface
PCIe 4.0 x8
PCIe 3.0 x8
Clock Speeds
Base Clock
1452 MHz
1100 MHz
Boost Clock
2300 MHz
1287 MHz
Memory Clock
2250 MHz
1500 MHz
Memory
Memory Size
8GB
2GB
Memory Type
GDDR6
GDDR5
Memory Bus
128bit
128bit
Bandwidth
288.0GB/s
96.00GB/s
Render Config
Compute Units
28
10
Shading Units
1792
640
TMUs
112
40
ROPs
64
16
RT Cores
28
-
L1 Cache
128 KB per Array
16 KB (per CU)
L2 Cache
2 MB
512 KB
L3 Cache
64 MB
-
Theoretical Performance
Pixel Rate
147.2 GPixel/s
20.59 GPixel/s
Texture Rate
257.6 GTexel/s
51.48 GTexel/s
FP16 (half)
32.97 TFLOPS
1.647 TFLOPS
FP32 (float)
16.49 TFLOPS
1.647 TFLOPS
FP64 (double)
515.2 GFLOPS
103.0 GFLOPS
Graphics Processor
GPU Name
Navi 33
Lexa
GPU Variant
Navi 33
Lexa PRO(215-0904018)
Architecture
RDNA 3.0
GCN 4.0
Foundry
TSMC
GlobalFoundries
Process Size
6 nm
14 nm
Transistors
13.3 billion
2.2 billion
Die Size
204 mm²
103 mm²
Board Design
TDP
43W
50W
Suggested PSU
200 W
-
Outputs
1x HDMI 2.1a3x DisplayPort 2.1
No outputs
Power Connectors
1x 6-pin
None
Graphics Features
DirectX
12 Ultimate (12_2)
12 (12_0)
OpenGL
4.6
4.6
OpenCL
2.2
2.1
Vulkan
1.3
1.2
Shader Model
6.8
6.4