NVIDIA RTX 4090vsNVIDIA L40S
NVIDIA RTX 4090 vs NVIDIA L40S: Specs, Benchmarks & Cloud Pricing
Full technical comparison of NVIDIA RTX 4090 and NVIDIA L40S — VRAM, memory bandwidth, FP16 TFLOPS, TDP, and live cloud pricing across all providers. Updated July 2026.
Technical Specifications
Spec
NVIDIA RTX 4090
NVIDIA L40S
Architecture
Ada Lovelace
Ada Lovelace
VRAM
24 GB GDDR6X
48 GB GDDR6
Memory bandwidth
1,008 GB/s
864 GB/s
FP16 performance
165 TFLOPS
362 TFLOPS
TDP
450 W
350 W
NVLink support
No
No
Release year
2022
2023
Green = better value for that metric.
NVIDIA RTX 4090
The RTX 4090 is the most cost-effective consumer GPU for AI workloads. At $0.40–$0.80/hr on GPU clouds, it's ideal for fine-tuning and small-model inference.
Best For
- Fine-tuning
- Small model inference
- Cost-effective compute
NVIDIA L40S
The L40S is NVIDIA's inference-optimized Ada Lovelace GPU. 48GB GDDR6 and 362 TFLOPS FP16 make it a strong choice for production inference at lower cost than H100.
Best For
- Inference
- Video AI
- Multi-modal workloads