AMD Instinct MI300X vs NVIDIA GeForce RTX 4090 Mobile
GPU · Specs Compare
Graphics Card
Release Date
Dec 2023
Jan 2023
Generation
Radeon Instinct
GeForce 40 Mobile
Type
Professional
Mobile
Bus Interface
PCIe 5.0 x16
PCIe 4.0 x16
Clock Speeds
Base Clock
1000 MHz
1335 MHz
Boost Clock
2100 MHz
1695 MHz
Memory Clock
2525 MHz
2250 MHz
Memory
Memory Size
192GB
16GB
Memory Type
HBM3
GDDR6
Memory Bus
8192bit
256bit
Bandwidth
10.3TB/s
576.0GB/s
Render Config
Compute Units
304
—
Shading Units
19456
9728
TMUs
1216
304
ROPs
0
112
L1 Cache
16 KB (per CU)
128 KB (per SM)
L2 Cache
16 MB
64 MB
L3 Cache
256 MB
—
SM Count
—
76
Tensor Cores
—
304
RT Cores
—
76
Theoretical Performance
Pixel Rate
0 MPixel/s
189.8 GPixel/s
Texture Rate
2553.6 GTexel/s
515.3 GTexel/s
FP16 (half)
653.7 TFLOPS
32.98 TFLOPS
FP32 (float)
81.72 TFLOPS
32.98 TFLOPS
FP64 (double)
81.72 TFLOPS
515.3 GFLOPS
Graphics Processor
GPU Name
Aqua Vanjaram
AD103
Architecture
CDNA 3.0
Ada Lovelace
Foundry
TSMC
TSMC
Process Size
5 nm
5 nm
Transistors
153 billion
45.9 billion
Die Size
1017 mm²
379 mm²
GPU Variant
—
GN21-X11
Board Design
TDP
750W
120W
Suggested PSU
1150 W
—
Outputs
No outputs
Portable Device Dependent
Power Connectors
None
None
Graphics Features
DirectX
N/A
12 Ultimate (12_2)
OpenGL
N/A
4.6
OpenCL
3.0
3.0
Vulkan
N/A
1.3
Shader Model
N/A
6.8
CUDA
—
8.9
▲ Specs Compare
Data sourced from official specifications and benchmark tests.