Specifications Compared
| Spec | RTX A4000 | RTX A5000 |
|---|---|---|
| TDP | 140W | 230W |
| VRAM | 16-20 GB | 24 GB |
| CUDA Cores | 6,144 | 8,192 |
| Memory Type | GDDR6 | GDDR6 |
| Architecture | Ampere | Ampere |
| Form Factors | PCIe | PCIe |
| Interconnect | PCIe 4.0 | NVLink, PCIe 4.0 |
| Tensor Cores | 192 | 256 |
| FP32 Performance | 19.2 TFLOPS | 27.8 TFLOPS |
| Memory Bandwidth | 448 GB/s | 768 GB/s |
| FP16 (with sparsity) | 153.4 TFLOPS | 222.2 TFLOPS |
Performance Analysis
Sparse FP16 performance reaches 153.4 TFLOPS on the A4000 and 222.2 TFLOPS on the A5000 while dense FP32 performance measures 19.2 TFLOPS on the A4000 and 27.8 TFLOPS on the A5000. The ratio of sparse FP16 to dense FP32 equals eight on each card so the absolute advantage of the A5000 remains consistent across these precisions for both training and inference workloads. Memory bandwidth of 768 GB/s on the A5000 versus 448 GB/s on the A4000 permits larger batch sizes during matrix operations because data movement between memory and compute units occurs at a higher sustained rate.
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 A4000
| Provider | Region | GPUs | Per GPU / hr | Instance / hr | Deploy |
|---|---|---|---|---|---|
| Paperspace | ny2 | 2 | $0.76 | $1.52 | Deploy |
1 provider in stock, 6 offers (cheapest per provider shown). All RTX A4000 offers, price history and alerts
RTX A5000
| Provider | Region | GPUs | Per GPU / hr | Instance / hr | Deploy |
|---|---|---|---|---|---|
| Vast.ai | Romania, RO | 1 | $0.23 | — | Deploy |
| Paperspace | ams1 | 1 | $1.38 | — | Deploy |
2 providers in stock, 9 offers (cheapest per provider shown). All RTX A5000 offers, price history and alerts
Notify me when RTX A4000 drops below a price
One email when the cheapest in-stock on-demand price per GPU-hour falls below your threshold. Cheapest right now: $0.76/GPU-hr.
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 A4000
The A4000 suits environments where power draw must stay at 140 W and where 16 GB to 20 GB of memory meets the working set size. Its lower TDP reduces cooling requirements in dense workstation deployments compared with the 230 W limit of the A5000.
When to Choose the RTX A5000
The A5000 fits workloads that require the full 24 GB memory capacity and 768 GB/s bandwidth to accommodate larger models or higher batch sizes. Its NVLink support further enables multi GPU scaling when single card memory proves insufficient.
Use Cases
The A5000 supplies 24 GB memory and 768 GB/s bandwidth that accommodate larger training batches than the 16 GB to 20 GB and 448 GB/s on the A4000.
Sparse FP16 throughput of 222.2 TFLOPS combined with 24 GB memory on the A5000 supports higher concurrency than 153.4 TFLOPS and 16 GB to 20 GB on the A4000.
Both cards deliver proportional sparse FP16 to dense FP32 ratios so selection depends on whether 24 GB or 16 GB to 20 GB memory satisfies the model size.
The 768 GB/s bandwidth and 24 GB memory on the A5000 allow larger image resolutions and batch counts than the 448 GB/s and 16 GB to 20 GB on the A4000.
Dense FP32 performance of 19.2 TFLOPS at a 140 W TDP on the A4000 meets many simulation needs with lower power draw than the 27.8 TFLOPS at 230 W on the A5000.
Frequently Asked Questions
What is the memory bandwidth difference between these two GPUs?▾
The RTX A4000 reaches 448 GB/s bandwidth whereas the RTX A5000 reaches 768 GB/s bandwidth.
Which GPU offers higher sparse FP16 performance?▾
The RTX A5000 reaches 222.2 TFLOPS with sparsity in FP16 while the RTX A4000 reaches 153.4 TFLOPS with sparsity in FP16.
What are the TDP ratings for the RTX A4000 and RTX A5000?▾
The RTX A4000 lists a TDP of 140 W and the RTX A5000 lists a TDP of 230 W.
Do both GPUs support the same interconnect technologies?▾
Both GPUs support PCIe 4.0 while only the RTX A5000 adds NVLink capability.
How does dense FP32 performance compare between the cards?▾
Dense FP32 performance measures 19.2 TFLOPS on the RTX A4000 and 27.8 TFLOPS on the RTX A5000.
Which is cheaper to rent, the RTX A4000 or the RTX A5000?▾
Cloud rental prices for both the RTX A4000 and RTX A5000 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 A4000 have compared to the RTX A5000?▾
The RTX A4000 has 16 to 20 GB of GDDR6 memory. The RTX A5000 has 24 GB of GDDR6 memory.
Can I find RTX A4000 and RTX A5000 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 A4000 and the RTX A5000?▾
The RTX A4000 uses the Ampere architecture (2021) while the RTX A5000 uses Ampere (2021). The RTX A4000 has 16-20 GB of GDDR6 at 448 GB/s; the RTX A5000 has 24 GB of GDDR6 at 768 GB/s, so the RTX A5000 has 1.7x the memory bandwidth of the RTX A4000.
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 A4000 and the RTX A5000. 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 A4000Every current offer by provider, daily price history and a price alert.
- Rent RTX A5000Every 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.