Product Compare

AMD Radeon RX 9070 XT vs AMD Radeon 550X Mobile

GPU GPU
Graphics Card
Release Date Mar 2025 Apr 2018
Generation Navi IV Mobility Radeon
Type Desktop Mobile
Bus Interface PCIe 5.0 x16 PCIe 3.0 x8
Clock Speeds
Base Clock 1660 MHz 1100 MHz
Boost Clock 2970 MHz 1287 MHz
Memory Clock 2518 MHz 1500 MHz
Memory
Memory Size 16GB 4GB
Memory Type GDDR6 GDDR5
Memory Bus 256bit 64bit
Bandwidth 644.6GB/s 48.00GB/s
Render Config
Compute Units 64 10
Shading Units 4096 640
TMUs 256 40
ROPs 128 16
Tensor Cores 128
RT Cores 64
L1 Cache 128 16 KB (per CU)
L2 Cache 8 MB 256 KB
L3 Cache 64 MB
Theoretical Performance
Pixel Rate 380.2 GPixel/s 20.59 GPixel/s
Texture Rate 760.3 GTexel/s 51.48 GTexel/s
FP16 (half) 97.32 TFLOPS 1.647 TFLOPS
FP32 (float) 48.66 TFLOPS 1.647 TFLOPS
FP64 (double) 1.521 TFLOPS 103.0 GFLOPS
Graphics Processor
GPU Name Navi 48 Polaris 23
GPU Variant Navi 48 XTX Polaris 23 MXT
Architecture RDNA 4.0 GCN 4.0
Foundry TSMC GlobalFoundries
Process Size 4 nm 14 nm
Transistors 53.9 billion 2.2 billion
Die Size 357 mm² 103 mm²
Board Design
TDP 304W 50W
Suggested PSU 700 W
Outputs 1x HDMI 2.1b3x DisplayPort 2.1a No outputs
Power Connectors 2x 8-pin None
Graphics Features
DirectX 12 Ultimate (12_2) 12 (12_0)
OpenGL 4.6 4.6
OpenCL 2.2 2.1
Vulkan 1.4 1.2
Shader Model 6.8 6.4