AMD Instinct MI325X vs NVIDIA GeForce RTX 3090
Side-by-side comparison of specifications, performance, and efficiency.
AMD Instinct MI325X
OfficialArchitecture
CDNA 3
Year
2025
VRAM
256 GB
TDP
1.0 kW
NVIDIA GeForce RTX 3090
OfficialArchitecture
Ampere
Year
2020
VRAM
24 GB
TDP
350 W
Specifications
AMD Instinct MI325X NVIDIA GeForce RTX 3090
Architecture
CDNA 3 Ampere
Launch Year
2025 2020
Form Factor
OAM PCIe
VRAM
256 GB24 GB
Memory Bandwidth
6.0 TB/s936 GB/s
TDP
1.0 kW350 W
Process Node
5nm FinFET 8nm
| Spec | AMD Instinct MI325X | NVIDIA GeForce RTX 3090 |
|---|---|---|
| Architecture | CDNA 3 | Ampere |
| Launch Year | 2025 | 2020 |
| Form Factor | OAM | PCIe |
| VRAM | 256 GB | 24 GB |
| Memory Bandwidth | 6.0 TB/s | 936 GB/s |
| TDP | 1.0 kW | 350 W |
| Process Node | 5nm FinFET | 8nm |
Performance (TFLOPS)
AMD Instinct MI325X NVIDIA GeForce RTX 3090
FP64
81.7 TFlops0.6 TFlops
FP32
163.4 TFlops35.6 TFlops
FP16
1307.4 TFlops35.6 TFlops
BF16
1307.4 TFlops35.6 TFlops
FP8
2614.9 TFlops—
INT8
2614.9 TFlops71.2 TFlops
| Precision | AMD Instinct MI325X | NVIDIA GeForce RTX 3090 |
|---|---|---|
| FP64 | 81.7 TFlops | 0.6 TFlops |
| FP32 | 163.4 TFlops | 35.6 TFlops |
| FP16 | 1307.4 TFlops | 35.6 TFlops |
| BF16 | 1307.4 TFlops | 35.6 TFlops |
| FP8 | 2614.9 TFlops | — |
| INT8 | 2614.9 TFlops | 71.2 TFlops |
FLOPS by Precision
Efficiency — TDP vs FP32 Performance
Analysis
Most Efficient
AMD
Instinct MI325X
0.16 TFLOPS/W
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