NVIDIA GeForce RTX 4090 VS NVIDIA GeForce RTX 4080
Both the RTX 4090 and RTX 4080 are built on NVIDIA's Ada Lovelace architecture. This comparison helps you choose between different configurations within the same GPU family.
RTX 4090
📊 Detailed Specifications Comparison
| Specification | RTX 4090 | RTX 4080 | Difference |
|---|---|---|---|
| Architecture & Design | |||
| Architecture | Ada Lovelace | Ada Lovelace | - |
| Process Node | 4nm | 4nm | - |
| Target Market | consumer | consumer | - |
| Form Factor | 3-slot PCIe | 3-slot PCIe | - |
| Memory | |||
| VRAM Capacity | 24GB | 16GB | +50% |
| Memory Type | GDDR6X | GDDR6X | - |
| Memory Bandwidth | 1.01 TB/s | 717 GB/s | +41% |
| Memory Bus | 384-bit | 256-bit | - |
| Compute Units | |||
| CUDA Cores | 16,384 | 9,728 | +68% |
| Tensor Cores | 512 | 304 | +68% |
| Performance (TFLOPS) | |||
| FP32 (Single Precision) | 82.58 TFLOPS | 48.7 TFLOPS | +70% |
| FP16 (Half Precision) | 165.15 TFLOPS | N/A | |
| Power & Connectivity | |||
| TDP (Power) | 450W | 320W | +41% |
| PCIe | PCIe 4.0 x16 | PCIe 4.0 x16 | - |
🎯 Use Case Recommendations
LLM & Large Model Training
NVIDIA GeForce RTX 4090
Higher VRAM capacity and memory bandwidth are critical for training large language models. The RTX 4090 offers 24GB compared to 16GB.
AI Inference
NVIDIA GeForce RTX 4090
For inference workloads, performance per watt matters most. Consider the balance between FP16/INT8 throughput and power consumption.
Budget-Conscious Choice
NVIDIA GeForce RTX 4080
Based on current cloud pricing, the RTX 4080 starts at a lower hourly rate.
NVIDIA GeForce RTX 4090 is Best For:
- Image generation
- AI development
- Enterprise production
NVIDIA GeForce RTX 4080 is Best For:
- Gaming
- AI development
- Budget builds
Frequently Asked Questions
Which GPU is better for AI training: RTX 4090 or RTX 4080?
For AI training, the key factors are VRAM size, memory bandwidth, and tensor core performance. The RTX 4090 offers 24GB of GDDR6X memory with 1.01 TB/s bandwidth, while the RTX 4080 provides 16GB of GDDR6X with 717 GB/s bandwidth. For larger models, the RTX 4090's higher VRAM capacity gives it an advantage.
What is the price difference between RTX 4090 and RTX 4080 in the cloud?
Cloud GPU rental prices vary by provider and region. Based on our data, RTX 4090 starts at $0.20/hour while RTX 4080 starts at $0.15/hour. This represents a 33% price difference.
Can I use RTX 4080 instead of RTX 4090 for my workload?
It depends on your specific requirements. If your model fits within 16GB of VRAM and you don't need the additional throughput of the RTX 4090, the RTX 4080 can be a cost-effective alternative. However, for workloads requiring maximum memory capacity or multi-GPU scaling, the RTX 4090's architecture may be essential.
Ready to rent a GPU?
Compare live pricing across 50+ cloud providers and find the best deal.