Specifications Compared
| Spec | RTX A4000 | RTX A6000 |
|---|---|---|
| TDP | 140W | 300W |
| VRAM | 16-20 GB | 48 GB |
| CUDA Cores | 6,144 | 10,752 |
| Memory Type | GDDR6 | GDDR6 |
| Architecture | Ampere | Ampere |
| FP16 (dense) | Not published | 154.8 TFLOPS |
| Form Factors | PCIe | PCIe |
| INT8 (dense) | Not published | 309.7 TOPS |
| Interconnect | PCIe 4.0 | NVLink, PCIe 4.0 |
| Tensor Cores | 192 | 336 |
| FP32 Performance | 19.2 TFLOPS | 38.7 TFLOPS |
| Memory Bandwidth | 448 GB/s | 768 GB/s |
| FP16 (with sparsity) | 153.4 TFLOPS | 309.6 TFLOPS |
| INT8 (with sparsity) | Not published | 619.4 TOPS |
Performance Analysis
FP16 performance with sparsity measures 153.4 TFLOPS on the RTX A4000 and 309.6 TFLOPS on the RTX A6000 while dense FP16 reaches 154.8 TFLOPS on the A6000 alone. The gap in these figures shows the A6000 processes larger training and inference workloads when sparsity applies and the A4000 matches dense FP16 levels only through sparsity techniques. Memory bandwidth at 448 GB/s versus 768 GB/s limits batch sizes on the A4000 during data heavy operations relative to the A6000.
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 A6000
| Provider | Region | GPUs | Per GPU / hr | Instance / hr | Deploy |
|---|---|---|---|---|---|
| LeaderGPU | The Netherlands | 8 | $0.44 | $3.54 | Deploy |
| QuantaCloud | us-midwest-2 | 2 | $0.48 | $0.96 | Deploy |
| Hyperstack | CANADA-1 | 1 | $0.50 | — | Deploy |
| Massed Compute | us-central-2 | 2 | $0.55 | $1.10 | Deploy |
| RunPod | global | 1 | $0.59 | — | Deploy |
6 providers in stock, 51 offers (cheapest per provider shown). All RTX A6000 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 RTX A4000 fits power limited environments because its TDP reaches only 140W. Tasks that operate within 16-20 GB VRAM and require 19.2 TFLOPS FP32 gain efficiency without the 300W draw of higher capacity cards.
When to Choose the RTX A6000
The RTX A6000 handles memory intensive operations through its 48 GB VRAM and 768 GB/s bandwidth. FP32 throughput of 38.7 TFLOPS combined with NVLink support enables larger scale workloads than the A4000 configuration allows.
Use Cases
The RTX A6000 supplies 48 GB VRAM and 38.7 TFLOPS FP32 which accommodate larger models than the 16-20 GB and 19.2 TFLOPS on the A4000.
Dense FP16 at 154.8 TFLOPS and 768 GB/s bandwidth on the A6000 support higher throughput than the sparsity dependent 153.4 TFLOPS and 448 GB/s on the A4000.
The A6000 48 GB capacity and 309.6 TFLOPS FP16 with sparsity enable bigger fine tuning batches compared to A4000 limits.
The RTX A4000 140W TDP and 16-20 GB VRAM suffice for standard image generation at lower power than the 300W A6000.
FP32 performance of 38.7 TFLOPS and NVLink on the A6000 accelerate scientific simulations beyond A4000 capabilities.
Frequently Asked Questions
What are the FP32 performance numbers?▾
The RTX A4000 reaches 19.2 TFLOPS FP32 and the RTX A6000 reaches 38.7 TFLOPS FP32.
Which GPU has higher memory bandwidth?▾
The RTX A6000 provides 768 GB/s bandwidth compared to 448 GB/s on the RTX A4000.
What FP16 figures are listed for each card?▾
The RTX A4000 lists 153.4 TFLOPS FP16 with sparsity while the RTX A6000 lists 154.8 TFLOPS dense FP16 and 309.6 TFLOPS FP16 with sparsity.
How do the TDP ratings compare?▾
The RTX A4000 TDP is 140W and the RTX A6000 TDP is 300W.
Does the A6000 support NVLink?▾
The RTX A6000 supports NVLink interconnects in addition to PCIe 4.0 while the A4000 supports only PCIe 4.0.
Which is cheaper to rent, the RTX A4000 or the RTX A6000?▾
Cloud rental prices for both the RTX A4000 and RTX A6000 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 A6000?▾
The RTX A4000 has 16 to 20 GB of GDDR6 memory. The RTX A6000 has 48 GB of GDDR6 memory.
Can I find RTX A4000 and RTX A6000 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 A6000?▾
The RTX A4000 uses the Ampere architecture (2021) while the RTX A6000 uses Ampere (2020). The RTX A4000 has 16-20 GB of GDDR6 at 448 GB/s; the RTX A6000 has 48 GB of GDDR6 at 768 GB/s, so the RTX A6000 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 A6000. 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 A6000Every 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.