NVIDIA GeForce RTX 4090 Max-Q vs AMD Instinct MI300X
GPU Specs Compare
Graphics Card
Release Date
Jan 2023
Dec 2023
Generation
GeForce 40 Mobile
Radeon Instinct
Type
Mobile
Professional
Bus Interface
PCIe 4.0 x16
PCIe 5.0 x16
Clock Speeds
Base Clock
930 MHz
1000 MHz
Boost Clock
1455 MHz
2100 MHz
Memory Clock
1750 MHz
2525 MHz
Memory
Memory Size
16GB
192GB
Memory Type
GDDR6
HBM3
Memory Bus
256bit
8192bit
Bandwidth
448.0GB/s
10.3TB/s
Render Config
SM Count
76
-
Shading Units
9728
19456
TMUs
304
1216
ROPs
112
0
Tensor Cores
304
-
RT Cores
76
-
L1 Cache
128 KB (per SM)
16 KB (per CU)
L2 Cache
64 MB
16 MB
Compute Units
-
304
L3 Cache
-
256 MB
Theoretical Performance
Pixel Rate
163.0 GPixel/s
0 MPixel/s
Texture Rate
442.3 GTexel/s
2553.6 GTexel/s
FP16 (half)
28.31 TFLOPS
653.7 TFLOPS
FP32 (float)
28.31 TFLOPS
81.72 TFLOPS
FP64 (double)
442.3 GFLOPS
81.72 TFLOPS
Graphics Processor
GPU Name
AD103
Aqua Vanjaram
GPU Variant
GN21-X11
-
Architecture
Ada Lovelace
CDNA 3.0
Foundry
TSMC
TSMC
Process Size
4 nm
5 nm
Transistors
45.9 billion
153 billion
Die Size
379 mm²
1017 mm²
Board Design
TDP
80W
750W
Outputs
Portable Device Dependent
No outputs
Power Connectors
None
None
Suggested PSU
-
1150 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
6.7
N/A