Specifications Compared
| Spec | RTX 4080 | RTX 4090 |
|---|---|---|
| TDP | 320W | 450W |
| VRAM | 16 GB | 24 GB |
| CUDA Cores | 9,728 | 16,384 |
| FP8 (dense) | 194.9 TFLOPS | 330.3 TFLOPS |
| Memory Type | GDDR6X | GDDR6X |
| Architecture | Ada Lovelace | Ada Lovelace |
| FP16 (dense) | 97.5 TFLOPS | 165.2 TFLOPS |
| Form Factors | PCIe | PCIe |
| INT8 (dense) | 389.9 TOPS | 660.6 TOPS |
| Interconnect | PCIe 4.0 | PCIe 4.0 |
| Tensor Cores | 304 | 512 |
| FP32 Performance | 48.7 TFLOPS | 82.6 TFLOPS |
| FP64 Performance | Not published | 1.3 TFLOPS |
| Memory Bandwidth | 717 GB/s | 1,008 GB/s |
| FP8 (with sparsity) | 389.8 TFLOPS | 660.6 TFLOPS |
| FP16 (with sparsity) | 195 TFLOPS | 330.4 TFLOPS |
| INT8 (with sparsity) | 779.8 TOPS | 1,321.2 TOPS |
Performance Analysis
The FP16 dense rating reaches 97.5 TFLOPS on the RTX 4080 and 165.2 TFLOPS on the RTX 4090. The FP16 with sparsity rating reaches 195 TFLOPS on the RTX 4080 and 330.4 TFLOPS on the RTX 4090. This gap indicates that the RTX 4090 completes matrix operations in training and inference at a higher rate when dense FP16 or FP16 with sparsity is applied. Memory bandwidth of 1008 GB/s on the RTX 4090 versus 717 GB/s on the RTX 4080 supports larger batch sizes during data movement. FP32 throughput of 82.6 TFLOPS on the RTX 4090 versus 48.7 TFLOPS on the RTX 4080 further widens the advantage for precision sensitive tasks.
Current On-Demand Offers
Cheapest secure on-demand offer per provider that is reported in stock right now, per GPU per hour; multi-GPU instances show the whole-instance price alongside. Deploy opens the DeployGPU console for providers on the platform, otherwise the provider's own site. Stock is rechecked every minute.
RTX 4080
RTX 4080 is not offered on-demand by any provider we track right now. See the RTX 4080 rental page for last-seen listed prices and a price alert.
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When to Choose the RTX 4080
The RTX 4080 suits environments where power limits constrain deployment. Its 320 W TDP allows sustained operation in systems with lower cooling capacity. The 16 GB memory capacity meets requirements for inference workloads that process moderate model sizes without exceeding available VRAM.
When to Choose the RTX 4090
The RTX 4090 suits workloads that require 24 GB of memory and 1008 GB/s bandwidth. Its 165.2 TFLOPS dense FP16 rating accelerates large batch inference compared with the 97.5 TFLOPS dense FP16 rating of the RTX 4080. Higher FP32 performance of 82.6 TFLOPS also benefits scientific computing tasks.
Use Cases
The RTX 4090 supplies 24 GB memory and 165.2 TFLOPS dense FP16 to handle larger training batches than the 16 GB and 97.5 TFLOPS dense FP16 of the RTX 4080.
The RTX 4090 supplies 1008 GB/s bandwidth and 330.3 TFLOPS dense FP8 to sustain higher token throughput than the 717 GB/s and 194.9 TFLOPS dense FP8 of the RTX 4080.
The RTX 4090 supplies 24 GB memory and 660.6 TOPS dense INT8 to support fine tuning of models that exceed the 16 GB capacity of the RTX 4080.
The RTX 4090 supplies 24 GB memory and 82.6 TFLOPS FP32 to generate higher resolution images than the 16 GB and 48.7 TFLOPS FP32 of the RTX 4080.
The RTX 4090 supplies 82.6 TFLOPS FP32 and 1008 GB/s bandwidth to accelerate simulations that benefit from greater memory and compute than the RTX 4080 provides.
Frequently Asked Questions
What is the memory difference between RTX 4080 and RTX 4090?▾
The RTX 4080 contains 16 GB of GDDR6X memory. The RTX 4090 contains 24 GB of GDDR6X memory.
How does FP32 performance compare on these GPUs?▾
The RTX 4080 delivers 48.7 TFLOPS FP32. The RTX 4090 delivers 82.6 TFLOPS FP32.
Which GPU has higher memory bandwidth?▾
The RTX 4090 reaches 1008 GB/s memory bandwidth. The RTX 4080 reaches 717 GB/s memory bandwidth.
What are the TDP values for each card?▾
The RTX 4080 has a TDP of 320 W. The RTX 4090 has a TDP of 450 W.
How do dense FP16 figures differ?▾
The RTX 4080 provides 97.5 TFLOPS dense FP16. The RTX 4090 provides 165.2 TFLOPS dense FP16.
Do both GPUs use the same interconnect?▾
Both the RTX 4080 and RTX 4090 use PCIe 4.0 interconnect.
Which is cheaper to rent, the RTX 4080 or the RTX 4090?▾
Cloud rental prices for both the RTX 4080 and RTX 4090 vary by provider, configuration, and availability. This page shows live pricing from 25+ providers updated every 60 seconds. Scroll to the Live Cloud Pricing section to compare current rates.
How much VRAM does the RTX 4080 have compared to the RTX 4090?▾
The RTX 4080 has 16 GB of GDDR6X memory. The RTX 4090 has 24 GB of GDDR6X memory.
Can I find RTX 4080 and RTX 4090 GPUs available to rent right now?▾
Yes. This page shows real-time availability across 25+ cloud GPU providers. The Live Cloud Pricing section displays only in-stock offers with current pricing.
What is the main difference between the RTX 4080 and the RTX 4090?▾
The RTX 4080 uses the Ada Lovelace architecture (2022) while the RTX 4090 uses Ada Lovelace (2022). The RTX 4090 delivers 1.7x the dense FP16 throughput (165.2 vs 97.5 TFLOPS, both without sparsity) and 1.4x the memory bandwidth of the RTX 4080.
Rent these GPUs
Each GPU page lists every current on-demand offer by provider, per GPU-hour, updated every minute.
Related comparisons
How this page is made
- Specifications come from the NVIDIA, AMD and Intel datasheets for the RTX 4080 and the RTX 4090. Dense and sparse throughput are listed separately.
- Prices and availability are live: every offer shown is an in-stock, on-demand listing from a provider we track, rechecked every minute.
- The written comparison (overview, performance notes, when to choose each card, verdict, use cases and FAQ) was drafted with an AI model from the specification table above and passed an automated check that rejects any figure not in that table. It was last generated on . It contains no prices; those are always read live.
- Read how we collect the data, or report an error on this page.
Next steps
- Rent RTX 4080Every current offer by provider, daily price history and a price alert.
- Rent RTX 4090Every current offer by provider, daily price history and a price alert.
- GPU price indexHow on-demand prices for the major GPUs have moved, updated daily.
- All GPUsEvery GPU we track, with current lows and provider counts.