AMD Radeon RX 5500M vs AMD Radeon Instinct MI455X
GPU Specs Compare
Graphics Card
Release Date
Oct 2019
Jul 2026
Generation
Mobility Radeon
Radeon Instinct
Type
Mobile
Desktop
Bus Interface
PCIe 4.0 x8
PCIe 6.0 x16
Clock Speeds
Base Clock
1375 MHz
1000 MHz
Boost Clock
1645 MHz
2400 MHz
Memory Clock
1750 MHz
1900 MHz
Memory
Memory Size
4GB
432GB
Memory Type
GDDR6
HBM4
Memory Bus
128bit
24576bit
Bandwidth
224.0GB/s
23.3TB/s
Render Config
Compute Units
22
256
Shading Units
1408
32768
TMUs
88
1024
ROPs
32
0
L2 Cache
2 MB
192 MB
L1 Cache
-
32 KB (per CU)
Theoretical Performance
Pixel Rate
52.64 GPixel/s
0 MPixel/s
Texture Rate
144.8 GTexel/s
2457.6 GTexel/s
FP16 (half)
9.265 TFLOPS
157.3 TFLOPS
FP32 (float)
4.632 TFLOPS
157.3 TFLOPS
FP64 (double)
289.5 GFLOPS
2.458 TFLOPS
Graphics Processor
GPU Name
Navi 14
MI450 256CU
GPU Variant
Navi 14 XTM
-
Architecture
RDNA 1.0
CDNA 5.0
Foundry
TSMC
TSMC
Process Size
7 nm
2 nm
Transistors
6.4 billion
320 billion
Die Size
158 mm²
Unknown
Board Design
TDP
85W
2300W
Outputs
No outputs
No outputs
Power Connectors
None
None
Suggested PSU
-
2700 W
Graphics Features
DirectX
12 (12_1)
N/A
OpenGL
4.6
N/A
OpenCL
2.1
3.0
Vulkan
1.3
N/A
Shader Model
6.5
N/A