Specifications Compared
| Spec | RTX 3090 | RTX 4000 Ada |
|---|---|---|
| TDP | 350W | 130W |
| VRAM | 24 GB | 20 GB |
| CUDA Cores | 10,496 | 6,144 |
| Memory Type | GDDR6X | GDDR6 |
| Architecture | Ampere | Ada Lovelace |
| FP16 (dense) | 71 TFLOPS | Not published |
| Form Factors | PCIe | PCIe |
| INT8 (dense) | 284 TOPS | Not published |
| Interconnect | NVLink, PCIe 4.0 | PCIe 4.0 |
| Tensor Cores | 328 | 192 |
| FP32 Performance | 35.6 TFLOPS | 26.7 TFLOPS |
| Memory Bandwidth | 936 GB/s | 360 GB/s |
| FP8 (with sparsity) | Not published | 427.6 TFLOPS |
| FP16 (with sparsity) | 142 TFLOPS | Not published |
| INT8 (with sparsity) | 568 TOPS | Not published |
Performance Analysis
The RTX 3090 delivers 71 TFLOPS dense FP16 and 35.6 TFLOPS FP32 whereas the RTX 4000 Ada lists only 26.7 TFLOPS FP32. This dense FP16 advantage on the RTX 3090 supports faster matrix operations in training loops than the RTX 4000 Ada can achieve with its published figures. Memory bandwidth of 936 GB/s on the RTX 3090 permits larger batch sizes than the 360 GB/s available on the RTX 4000 Ada. The RTX 4000 Ada reports 427.6 TFLOPS FP8 with sparsity which remains unavailable for direct comparison against the RTX 3090 because no FP8 figure appears for that model.
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 3090
| Provider | Region | GPUs | Per GPU / hr | Instance / hr | Deploy |
|---|---|---|---|---|---|
| Vast.ai | Finland, FI | 4 | $0.27 | $1.07 | Deploy |
| LeaderGPU | The Netherlands | 8 | $0.29 | $2.29 | Deploy |
2 providers in stock, 10 offers (cheapest per provider shown). All RTX 3090 offers, price history and alerts
RTX 4000 Ada
RTX 4000 Ada is not offered on-demand by any provider we track right now. See the RTX 4000 Ada rental page for last-seen listed prices and a price alert.
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One email when the cheapest in-stock on-demand price per GPU-hour falls below your threshold. Cheapest right now: $0.27/GPU-hr.
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When to Choose the RTX 3090
The RTX 3090 suits workloads that require 24 GB VRAM and 936 GB/s bandwidth to accommodate large models or high resolution data sets. Its 71 TFLOPS dense FP16 and 284 TOPS dense INT8 further accelerate operations that exceed the published limits of the RTX 4000 Ada. The 35.6 TFLOPS FP32 rating also exceeds the 26.7 TFLOPS FP32 of the RTX 4000 Ada for precision sensitive tasks.
When to Choose the RTX 4000 Ada
The RTX 4000 Ada fits environments constrained by a 130W TDP where the 350W TDP of the RTX 3090 would exceed power or cooling limits. Its 427.6 TFLOPS FP8 with sparsity provides a published path for quantized inference that the RTX 3090 does not list. The PCIe only interconnect on the RTX 4000 Ada aligns with systems that lack NVLink support.
Use Cases
The RTX 3090 supplies 24 GB VRAM and 71 TFLOPS dense FP16 that exceed the published limits of the RTX 4000 Ada.
The RTX 4000 Ada operates at 130W TDP and lists 427.6 TFLOPS FP8 with sparsity for efficient quantized workloads.
The RTX 3090 provides 936 GB/s bandwidth and 24 GB VRAM that support larger fine tuning batches than the 360 GB/s on the RTX 4000 Ada.
The RTX 4000 Ada runs at 130W TDP and 26.7 TFLOPS FP32 for sustained workloads where power limits matter more than peak throughput.
Frequently Asked Questions
What are the FP32 ratings for these GPUs?▾
The RTX 3090 lists 35.6 TFLOPS FP32 and the RTX 4000 Ada lists 26.7 TFLOPS FP32.
Which GPU has higher memory bandwidth?▾
The RTX 3090 reaches 936 GB/s while the RTX 4000 Ada reaches 360 GB/s.
What is the TDP of the RTX 3090 compared with the RTX 4000 Ada?▾
The RTX 3090 carries a 350W TDP and the RTX 4000 Ada carries a 130W TDP.
Does the RTX 3090 support NVLink?▾
The RTX 3090 includes NVLink interconnect while the RTX 4000 Ada uses PCIe 4.0 only.
What sparse FP8 performance does the RTX 4000 Ada publish?▾
The RTX 4000 Ada publishes 427.6 TFLOPS FP8 with sparsity and the RTX 3090 does not list an FP8 figure.
Which is cheaper to rent, the RTX 3090 or the RTX 4000 Ada?▾
Cloud rental prices for both the RTX 3090 and RTX 4000 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 3090 have compared to the RTX 4000 Ada?▾
The RTX 3090 has 24 GB of GDDR6X memory. The RTX 4000 Ada has 20 GB of GDDR6 memory.
Can I find RTX 3090 and RTX 4000 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 3090 and the RTX 4000 Ada?▾
The RTX 3090 uses the Ampere architecture (2020) while the RTX 4000 Ada uses Ada Lovelace (2023). The RTX 3090 has 24 GB of GDDR6X at 936 GB/s; the RTX 4000 Ada has 20 GB of GDDR6 at 360 GB/s, so the RTX 3090 has 2.6x the memory bandwidth of the RTX 4000 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 3090 and the RTX 4000 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 3090Every current offer by provider, daily price history and a price alert.
- Rent RTX 4000 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.