NVIDIA GeForce RTX 4090 Mobile vs AMD Radeon Instinct MI350X
GPU Specs Compare
Graphics Card
Release Date
Jan 2023
Jun 2025
Generation
GeForce 40 Mobile
Radeon Instinct
Type
Mobile
Professional
Bus Interface
PCIe 4.0 x16
PCIe 5.0 x16
Clock Speeds
Base Clock
1335 MHz
1000 MHz
Boost Clock
1695 MHz
2200 MHz
Memory Clock
2250 MHz
2000 MHz
Memory
Memory Size
16GB
288GB
Memory Type
GDDR6
HBM3e
Memory Bus
256bit
8192bit
Bandwidth
576.0GB/s
8.19TB/s
Render Config
SM Count
76
-
Shading Units
9728
16384
TMUs
304
1024
ROPs
112
0
Tensor Cores
304
1024
RT Cores
76
-
L1 Cache
128 KB (per SM)
16 KB (per CU)
L2 Cache
64 MB
16 MB
Compute Units
-
256
L3 Cache
-
256 MB
Theoretical Performance
Pixel Rate
189.8 GPixel/s
0 MPixel/s
Texture Rate
515.3 GTexel/s
2252.8 GTexel/s
FP16 (half)
32.98 TFLOPS
72.09 TFLOPS
FP32 (float)
32.98 TFLOPS
72.09 TFLOPS
FP64 (double)
515.3 GFLOPS
36.04 TFLOPS
Graphics Processor
GPU Name
AD103
MI350 256CU
GPU Variant
GN21-X11
-
Architecture
Ada Lovelace
CDNA 4.0
Foundry
TSMC
TSMC
Process Size
5 nm
3 nm
Transistors
45.9 billion
185 billion
Die Size
379 mm²
Unknown
Board Design
TDP
120W
1000W
Outputs
Portable Device Dependent
No outputs
Power Connectors
None
None
Suggested PSU
-
1400 W
Graphics Features
DirectX
12 Ultimate (12_2)
N/A
OpenGL
4.6
N/A
OpenCL
3.0
3.0
Vulkan
1.3
N/A
CUDA
8.9
-
Shader Model
6.8
N/A