Specifications Compared
| Spec | RTX 4090 | RTX 6000 Ada |
|---|---|---|
| TDP | 450W | 300W |
| VRAM | 24 GB | 48 GB |
| CUDA Cores | 16,384 | 18,176 |
| FP8 (dense) | 330.3 TFLOPS | 728.5 TFLOPS |
| Memory Type | GDDR6X | GDDR6 |
| Architecture | Ada Lovelace | Ada Lovelace |
| FP16 (dense) | 165.2 TFLOPS | 364 TFLOPS |
| Form Factors | PCIe | PCIe |
| INT8 (dense) | 660.6 TOPS | 728.5 TOPS |
| Interconnect | PCIe 4.0 | PCIe 4.0 |
| Tensor Cores | 512 | 568 |
| FP32 Performance | 82.6 TFLOPS | 91.1 TFLOPS |
| FP64 Performance | 1.3 TFLOPS | Not published |
| Memory Bandwidth | 1,008 GB/s | 960 GB/s |
| FP8 (with sparsity) | 660.6 TFLOPS | 1,457 TFLOPS |
| FP16 (with sparsity) | 330.4 TFLOPS | 728 TFLOPS |
| INT8 (with sparsity) | 1,321.2 TOPS | 1,457 TOPS |
Performance Analysis
Dense FP16 performance stands at 165.2 TFLOPS for the RTX 4090 and 364 TFLOPS for the RTX 6000 Ada. The same dense FP16 figures produce a ratio of 364 to 165.2 that favors the RTX 6000 Ada by more than two times. FP16 performance with sparsity reaches 330.4 TFLOPS on the RTX 4090 against 728 TFLOPS on the RTX 6000 Ada. The FP16 with sparsity ratio therefore remains greater than two times in favor of the RTX 6000 Ada. FP32 throughput of 91.1 TFLOPS on the RTX 6000 Ada exceeds the 82.6 TFLOPS of the RTX 4090. Higher memory capacity of 48 GB on the RTX 6000 Ada supports larger batch sizes than the 24 GB capacity of the RTX 4090 despite the modest bandwidth advantage of 1008 GB/s versus 960 GB/s.
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 |
|---|---|---|---|---|---|
| RunPod | global | 1 | $0.74 | — | Deploy |
| LeaderGPU | The Netherlands | 1 | $1.04 | — | Deploy |
2 providers in stock, 5 offers (cheapest per provider shown). All RTX 4090 offers, price history and alerts
RTX 6000 Ada
| Provider | Region | GPUs | Per GPU / hr | Instance / hr | Deploy |
|---|---|---|---|---|---|
| QuantaCloud | us-midwest-1 | 4 | $0.78 | $3.11 | Deploy |
| Massed Compute | us-central-3 | 1 | $0.79 | — | Deploy |
| RunPod | global | 1 | $0.84 | — | Deploy |
| LeaderGPU | The Netherlands | 8 | $1.20 | $9.60 | Deploy |
| DigitalOcean | Toronto 1 | 1 | $1.57 | — | Deploy |
5 providers in stock, 15 offers (cheapest per provider shown). All RTX 6000 Ada offers, price history and alerts
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When to Choose the RTX 4090
The RTX 4090 suits workloads that place primary emphasis on memory bandwidth of 1008 GB/s. Scenarios limited by the 450W TDP ceiling may still select the RTX 4090 when the 24 GB GDDR6X capacity meets exact requirements.
When to Choose the RTX 6000 Ada
The RTX 6000 Ada fits tasks that require the 48 GB memory capacity together with dense FP16 throughput of 364 TFLOPS. Lower TDP of 300W makes the RTX 6000 Ada preferable when power limits constrain deployment of the 450W RTX 4090.
Use Cases
The RTX 6000 Ada supplies 48 GB memory and dense FP16 performance of 364 TFLOPS that exceed the 24 GB and 165.2 TFLOPS of the RTX 4090.
Dense FP16 throughput of 364 TFLOPS and 48 GB capacity on the RTX 6000 Ada enable larger inference batches than the RTX 4090 specifications allow.
The RTX 6000 Ada provides 48 GB memory together with FP32 performance of 91.1 TFLOPS that surpass the RTX 4090 figures.
Memory bandwidth of 1008 GB/s on the RTX 4090 exceeds the 960 GB/s rating of the RTX 6000 Ada for image generation pipelines.
FP32 performance of 91.1 TFLOPS on the RTX 6000 Ada combined with 48 GB memory exceeds the RTX 4090 specifications.
Frequently Asked Questions
How does FP32 performance compare between these two GPUs?▾
FP32 performance measures 82.6 TFLOPS on the RTX 4090 and 91.1 TFLOPS on the RTX 6000 Ada.
Which GPU offers higher dense FP16 throughput?▾
The RTX 6000 Ada delivers dense FP16 performance of 364 TFLOPS compared with 165.2 TFLOPS on the RTX 4090.
What TDP values apply to the RTX 4090 and RTX 6000 Ada?▾
TDP equals 450W for the RTX 4090 and 300W for the RTX 6000 Ada.
Do both GPUs share the same interconnect?▾
Both the RTX 4090 and RTX 6000 Ada use the PCIe 4.0 interconnect.
Which GPU has greater memory bandwidth?▾
The RTX 4090 reaches memory bandwidth of 1008 GB/s while the RTX 6000 Ada reaches 960 GB/s.
Which is cheaper to rent, the RTX 4090 or the RTX 6000 Ada?▾
Cloud rental prices for both the RTX 4090 and RTX 6000 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 6000 Ada?▾
The RTX 4090 has 24 GB of GDDR6X memory. The RTX 6000 Ada has 48 GB of GDDR6 memory.
Can I find RTX 4090 and RTX 6000 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 6000 Ada?▾
The RTX 4090 uses the Ada Lovelace architecture (2022) while the RTX 6000 Ada uses Ada Lovelace (2022). The RTX 6000 Ada delivers 2.2x the dense FP16 throughput (364 vs 165.2 TFLOPS, both without sparsity) while the RTX 4090 has 1.1x the memory bandwidth of the RTX 6000 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 6000 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 6000 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.