Specifications Compared
| Spec | RTX 4080 | RTX 5090 |
|---|---|---|
| TDP | 320W | 575W |
| VRAM | 16 GB | 32 GB |
| CUDA Cores | 9,728 | 21,760 |
| FP4 (dense) | Not published | 1,676 TFLOPS |
| FP8 (dense) | 194.9 TFLOPS | 419 TFLOPS |
| Memory Type | GDDR6X | GDDR7 |
| Architecture | Ada Lovelace | Blackwell |
| FP16 (dense) | 97.5 TFLOPS | 209.5 TFLOPS |
| Form Factors | PCIe | PCIe |
| INT8 (dense) | 389.9 TOPS | 838 TOPS |
| Interconnect | PCIe 4.0 | PCIe 5.0 |
| Tensor Cores | 304 | 680 |
| FP32 Performance | 48.7 TFLOPS | 104.8 TFLOPS |
| FP64 Performance | Not published | 1.6 TFLOPS |
| Memory Bandwidth | 717 GB/s | 1,792 GB/s |
| FP4 (with sparsity) | Not published | 3,352 TFLOPS |
| FP8 (with sparsity) | 389.8 TFLOPS | 838 TFLOPS |
| FP16 (with sparsity) | 195 TFLOPS | 419 TFLOPS |
| INT8 (with sparsity) | 779.8 TOPS | 1,676 TOPS |
Performance Analysis
The FP16 dense rating reaches 97.5 TFLOPS on the RTX 4080 and 209.5 TFLOPS on the RTX 5090 so the RTX 5090 delivers more than double the dense FP16 throughput. The FP16 with sparsity rating reaches 195 TFLOPS on the RTX 4080 and 419 TFLOPS on the RTX 5090 so the RTX 5090 again provides more than double the sparse FP16 throughput. Memory bandwidth of 1792 GB/s on the RTX 5090 versus 717 GB/s on the RTX 4080 supports larger batch sizes during training or inference workloads that move substantial tensor data.
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.
Notify me when RTX 4080 drops below a price
One email when the cheapest in-stock on-demand price per GPU-hour falls below your threshold.
QuantaCloud
Comparing providers? We broker across all of them.
Stop tab-switching between pricing pages. Tell us what you need, 16+ GPUs reserved or cluster capacity, and we return one quote at partner rates within 24 hours.
When to Choose the RTX 4080
The RTX 4080 suits workloads that fit within 16 GB VRAM and operate under a 320W TDP limit. Scenarios that prioritize lower power draw over peak throughput select the RTX 4080 because its TDP of 320W is lower than the 575W TDP of the RTX 5090. Users who already own compatible PCIe 4.0 systems may retain the RTX 4080 without immediate need for the higher FP16 dense rating of 209.5 TFLOPS found on the RTX 5090.
When to Choose the RTX 5090
The RTX 5090 suits workloads that require 32 GB VRAM or the 1792 GB/s memory bandwidth for larger batch processing. Systems prepared for PCIe 5.0 interconnect and higher power delivery favor the RTX 5090 when scaling beyond the 16 GB capacity of the RTX 4080.
Use Cases
The RTX 5090 supplies 32 GB VRAM and 209.5 TFLOPS FP16 dense which exceed the 16 GB VRAM and 97.5 TFLOPS FP16 dense of the RTX 4080.
The RTX 5090 supplies 1792 GB/s bandwidth and 419 TFLOPS FP16 with sparsity which exceed the 717 GB/s bandwidth and 195 TFLOPS FP16 with sparsity of the RTX 4080.
The RTX 5090 supplies 32 GB VRAM and 838 TOPS INT8 dense which exceed the 16 GB VRAM and 389.9 TOPS INT8 dense of the RTX 4080.
The RTX 4080 supplies 16 GB VRAM at 320W TDP while the RTX 5090 supplies 32 GB VRAM at 575W TDP so either GPU meets typical image generation requirements.
The RTX 5090 supplies 104.8 TFLOPS FP32 which exceed the 48.7 TFLOPS FP32 of the RTX 4080.
Frequently Asked Questions
What are the FP16 dense ratings?▾
The RTX 4080 reaches 97.5 TFLOPS FP16 dense and the RTX 5090 reaches 209.5 TFLOPS FP16 dense.
What are the memory bandwidth figures?▾
The RTX 4080 reaches 717 GB/s while the RTX 5090 reaches 1792 GB/s.
What TDP values apply to each card?▾
The RTX 4080 lists a TDP of 320W while the RTX 5090 lists a TDP of 575W.
Do the GPUs share the same interconnect generation?▾
The RTX 4080 uses PCIe 4.0 while the RTX 5090 uses PCIe 5.0.
Which is cheaper to rent, the RTX 4080 or the RTX 5090?▾
Cloud rental prices for both the RTX 4080 and RTX 5090 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 5090?▾
The RTX 4080 has 16 GB of GDDR6X memory. The RTX 5090 has 32 GB of GDDR7 memory.
Can I find RTX 4080 and RTX 5090 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 5090?▾
The RTX 4080 uses the Ada Lovelace architecture (2022) while the RTX 5090 uses Blackwell (2025). The RTX 5090 delivers 2.1x the dense FP16 throughput (209.5 vs 97.5 TFLOPS, both without sparsity) and 2.5x 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 5090. 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 5090Every 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.