Specifications Compared
| Spec | RTX 4090 | RTX A2000 |
|---|---|---|
| TDP | 450W | 70W |
| VRAM | 24 GB | 6-12 GB |
| CUDA Cores | 16,384 | 3,328 |
| FP8 (dense) | 330.3 TFLOPS | Not published |
| Memory Type | GDDR6X | GDDR6 |
| Architecture | Ada Lovelace | Ampere |
| 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 | 104 |
| FP32 Performance | 82.6 TFLOPS | 8 TFLOPS |
| FP64 Performance | 1.3 TFLOPS | Not published |
| Memory Bandwidth | 1,008 GB/s | 288 GB/s |
| FP8 (with sparsity) | 660.6 TFLOPS | Not published |
| FP16 (with sparsity) | 330.4 TFLOPS | 63.9 TFLOPS |
| INT8 (with sparsity) | 1,321.2 TOPS | Not published |
Performance Analysis
The RTX 4090 delivers 165.2 TFLOPS dense FP16 compared to the 63.9 TFLOPS with sparsity on the RTX A2000. The RTX 4090 also provides 330.4 TFLOPS with sparsity for FP16 while the RTX A2000 figure remains limited to the sparsity value of 63.9 TFLOPS. FP32 ratios show the RTX 4090 at 82.6 TFLOPS against 8 TFLOPS on the RTX A2000. Higher memory bandwidth of 1008 GB/s on the RTX 4090 supports larger batch sizes than the 288 GB/s available on the RTX A2000. These dense FP16 figures indicate greater capacity for parallel operations on the RTX 4090 during training and inference phases. The sparsity figures allow direct comparison only where both GPUs publish matching modes.
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 | $0.89 | — | Deploy |
| Vast.ai | Hungary, HU | 1 | $0.93 | — | Deploy |
| LeaderGPU | The Netherlands | 1 | $1.66 | — | Deploy |
3 providers in stock, 7 offers (cheapest per provider shown). All RTX 4090 offers, price history and alerts
RTX A2000
RTX A2000 is not offered on-demand by any provider we track right now. See the RTX A2000 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 24 GB VRAM and 1008 GB/s bandwidth. Scenarios involving dense FP16 at 165.2 TFLOPS benefit from the higher FP32 rating of 82.6 TFLOPS. The 450W TDP accommodates sustained high throughput in environments with adequate power delivery.
When to Choose the RTX A2000
The RTX A2000 fits deployments limited to 70W TDP and 6-12 GB VRAM. Its 8 TFLOPS FP32 rating aligns with lighter tasks that do not demand the 1008 GB/s bandwidth of the RTX 4090. The 288 GB/s bandwidth and sparsity FP16 of 63.9 TFLOPS support compact setups.
Use Cases
The RTX 4090 supplies 24 GB VRAM and 165.2 TFLOPS dense FP16 for handling larger models.
The RTX 4090 provides 1008 GB/s bandwidth and 330.4 TFLOPS FP16 with sparsity to process requests efficiently.
The RTX 4090 delivers 660.6 TFLOPS FP8 dense for image generation tasks.
The RTX A2000 operates at 70W TDP with 8 TFLOPS FP32 for lower power environments.
Frequently Asked Questions
What FP32 performance do the RTX 4090 and RTX A2000 provide?▾
The RTX 4090 reaches 82.6 TFLOPS FP32 and the RTX A2000 reaches 8 TFLOPS FP32.
Which GPU has higher memory bandwidth?▾
The RTX 4090 achieves 1008 GB/s while the RTX A2000 achieves 288 GB/s.
What are the TDP values for the RTX 4090 and RTX A2000?▾
The RTX 4090 lists 450W TDP and the RTX A2000 lists 70W TDP.
How do the FP16 figures differ?▾
The RTX 4090 lists 165.2 TFLOPS dense FP16 and 330.4 TFLOPS with sparsity while the RTX A2000 lists 63.9 TFLOPS with sparsity.
Do both GPUs support the same interconnect?▾
Both the RTX 4090 and RTX A2000 use PCIe 4.0 interconnect in PCIe form factors.
Which is cheaper to rent, the RTX 4090 or the RTX A2000?▾
Cloud rental prices for both the RTX 4090 and RTX A2000 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 A2000?▾
The RTX 4090 has 24 GB of GDDR6X memory. The RTX A2000 has 6 to 12 GB of GDDR6 memory.
Can I find RTX 4090 and RTX A2000 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 A2000?▾
The RTX 4090 uses the Ada Lovelace architecture (2022) while the RTX A2000 uses Ampere (2021). The RTX 4090 has 24 GB of GDDR6X at 1,008 GB/s; the RTX A2000 has 6-12 GB of GDDR6 at 288 GB/s, so the RTX 4090 has 3.5x the memory bandwidth of the RTX A2000.
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 A2000. 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 A2000Every 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.