Specifications Compared
| Spec | RTX 4090 | RTX 5000 Ada |
|---|---|---|
| TDP | 450W | 250W |
| VRAM | 24 GB | 32 GB |
| CUDA Cores | 16,384 | 12,800 |
| FP8 (dense) | 330.3 TFLOPS | Not published |
| Memory Type | GDDR6X | GDDR6 |
| Architecture | Ada Lovelace | Ada Lovelace |
| FP16 (dense) | 165.2 TFLOPS | Not published |
| Form Factors | PCIe | PCIe |
| INT8 (dense) | 660.6 TOPS | Not published |
| Interconnect | PCIe 4.0 | PCIe 4.0 |
| Tensor Cores | 512 | 400 |
| FP32 Performance | 82.6 TFLOPS | 65.3 TFLOPS |
| FP64 Performance | 1.3 TFLOPS | Not published |
| Memory Bandwidth | 1,008 GB/s | 576 GB/s |
| FP8 (with sparsity) | 660.6 TFLOPS | 1,044.4 TFLOPS |
| FP16 (with sparsity) | 330.4 TFLOPS | Not published |
| INT8 (with sparsity) | 1,321.2 TOPS | Not published |
Performance Analysis
The RTX 4090 delivers 165.2 TFLOPS dense FP16 and 82.6 TFLOPS FP32 whereas the RTX 5000 Ada publishes no FP16 value. In training workloads the dense FP16 figure of 165.2 TFLOPS on the RTX 4090 supports higher throughput than its own 82.6 TFLOPS FP32 baseline. The RTX 5000 Ada reaches 1044.4 TFLOPS FP8 with sparsity against the RTX 4090 value of 660.6 TFLOPS FP8 with sparsity. Memory bandwidth of 1008 GB/s on the RTX 4090 versus 576 GB/s on the RTX 5000 Ada directly influences sustainable batch sizes during both training and inference passes. The 450W TDP of the RTX 4090 exceeds the 250W TDP of the RTX 5000 Ada and therefore affects sustained operation under continuous loads.
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 4090
| Provider | Region | GPUs | Per GPU / hr | Instance / hr | Deploy |
|---|---|---|---|---|---|
| Vast.ai | United Kingdom, GB | 8 | $0.53 | $4.27 | Deploy |
| RunPod | global | 1 | $0.89 | — | Deploy |
| LeaderGPU | The Netherlands | 1 | $1.66 | — | Deploy |
3 providers in stock, 8 offers (cheapest per provider shown). All RTX 4090 offers, price history and alerts
RTX 5000 Ada
RTX 5000 Ada is not offered on-demand by any provider we track right now. See the RTX 5000 Ada rental page for last-seen listed prices and a price alert.
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When to Choose the RTX 4090
The RTX 4090 suits workloads that require its 1008 GB/s memory bandwidth and 82.6 TFLOPS FP32 performance. Applications that benefit from the published 165.2 TFLOPS dense FP16 rating select the RTX 4090 over alternatives limited to lower bandwidth figures.
When to Choose the RTX 5000 Ada
The RTX 5000 Ada fits environments constrained by the 250W TDP limit and those needing 32 GB memory capacity. Tasks that utilize the 1044.4 TFLOPS FP8 with sparsity rating favor the RTX 5000 Ada when power efficiency and VRAM volume take precedence over bandwidth.
Use Cases
The RTX 4090 supplies 165.2 TFLOPS dense FP16 and 1008 GB/s bandwidth that support larger batch processing than the 576 GB/s available on the RTX 5000 Ada.
The RTX 4090 achieves higher dense FP16 throughput at 165.2 TFLOPS together with greater memory bandwidth of 1008 GB/s compared with the RTX 5000 Ada.
The RTX 5000 Ada offers 32 GB memory and a 250W TDP that accommodate sustained fine tuning sessions within lower power budgets than the 450W rating of the RTX 4090.
Both cards deliver Ada Lovelace tensor capabilities with the RTX 4090 providing 660.6 TFLOPS FP8 with sparsity and the RTX 5000 Ada reaching 1044.4 TFLOPS FP8 with sparsity.
The RTX 5000 Ada supplies 32 GB GDDR6 and 65.3 TFLOPS FP32 within a 250W envelope that suits power limited scientific workloads.
Frequently Asked Questions
What is the memory difference between the RTX 4090 and RTX 5000 Ada?▾
The RTX 4090 contains 24 GB GDDR6X while the RTX 5000 Ada contains 32 GB GDDR6. Bandwidth measures 1008 GB/s on the RTX 4090 and 576 GB/s on the RTX 5000 Ada.
How do FP32 figures compare on these GPUs?▾
The RTX 4090 lists 82.6 TFLOPS FP32. The RTX 5000 Ada lists 65.3 TFLOPS FP32.
Which GPU has higher FP8 performance with sparsity?▾
The RTX 5000 Ada reaches 1044.4 TFLOPS FP8 with sparsity. The RTX 4090 reaches 660.6 TFLOPS FP8 with sparsity.
What TDP values apply to the RTX 4090 and RTX 5000 Ada?▾
The RTX 4090 carries a 450W TDP rating. The RTX 5000 Ada carries a 250W TDP rating.
Do both GPUs use the same interconnect?▾
Both the RTX 4090 and the RTX 5000 Ada employ PCIe 4.0 interconnects in PCIe form factors.
Can the RTX 4090 run FP16 workloads at 330.4 TFLOPS?▾
The RTX 4090 achieves 330.4 TFLOPS FP16 with sparsity and 165.2 TFLOPS FP16 dense.
Which is cheaper to rent, the RTX 4090 or the RTX 5000 Ada?▾
Cloud rental prices for both the RTX 4090 and RTX 5000 Ada 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 4090 have compared to the RTX 5000 Ada?▾
The RTX 4090 has 24 GB of GDDR6X memory. The RTX 5000 Ada has 32 GB of GDDR6 memory.
Can I find RTX 4090 and RTX 5000 Ada 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 4090 and the RTX 5000 Ada?▾
The RTX 4090 uses the Ada Lovelace architecture (2022) while the RTX 5000 Ada uses Ada Lovelace (2023). The RTX 4090 has 24 GB of GDDR6X at 1,008 GB/s; the RTX 5000 Ada has 32 GB of GDDR6 at 576 GB/s, so the RTX 4090 has 1.8x the memory bandwidth of the RTX 5000 Ada.
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 4090 and the RTX 5000 Ada. 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 4090Every current offer by provider, daily price history and a price alert.
- Rent RTX 5000 ADAEvery 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.