A100 SXM4 80GB vs RTX 4090
Compare NVIDIA A100 SXM4 80GB and NVIDIA RTX 4090 specs, performance, and cloud pricing
A100 SXM4 80GB
80GB
From $1.10/hr
RTX 4090
24GB
From $0.370/hr
Architecture
Ampere
vs Ada Lovelace
FP16 Gap
7.5x
A100 SXM4 80GB leads
| Specification | A100 SXM4 80GB | RTX 4090 |
|---|---|---|
| VRAM | 80 GB | 24 GB |
| VRAM Type | HBM2e | GDDR6X |
| FP16 TFLOPS | 624 TFLOPS | 83 TFLOPS |
| FP8 TFLOPS | N/A | 166 TFLOPS |
| Memory Bandwidth | 2.0 TB/s | 1.0 TB/s |
| TDP | 400W | 450W |
| Interconnect | NVLink 3 | None |
| Architecture | Ampere | Ada Lovelace |
Price Comparison
| Metric | A100 SXM4 80GB | RTX 4090 |
|---|---|---|
| Cheapest On-Demand | $1.10/hr | $0.370/hr |
| Cheapest Spot | $0.760/hr | $0.280/hr |
| Providers Available | 6 | 3 |
Verdict
Best for Training
NVIDIA A100 SXM4 80GB
624 TFLOPS FP16 with 80GB VRAM
Best Value
NVIDIA A100 SXM4 80GB
567 TFLOPS per $/hr
Best for Inference
NVIDIA A100 SXM4 80GB
624 TFLOPS FP8/FP16
Use-Case Recommendations
Large-Scale Training
Training LLMs and large multi-modal models
Winner
A100 SXM4 80GB
624 TFLOPS FP16 with 80GB HBM2e provides the best training throughput.
Inference at Scale
Deploying models in production for real-time inference
Winner
A100 SXM4 80GB
624 TFLOPS FP8/FP16 gives superior inference throughput.
Budget-Conscious Workloads
Getting the best performance per dollar
Winner
A100 SXM4 80GB
Starting at $1.10/hr delivers the best TFLOPS per dollar.