Specifications Compared
| Spec | RTX 3080 | RTX A4000 |
|---|---|---|
| TDP | 320W | 140W |
| VRAM | 10-12 GB | 16-20 GB |
| CUDA Cores | 8,704 | 6,144 |
| Memory Type | GDDR6X | GDDR6 |
| Architecture | Ampere | Ampere |
| FP16 (dense) | 59.5 TFLOPS | Not published |
| Form Factors | PCIe | PCIe |
| INT8 (dense) | 238 TOPS | Not published |
| Interconnect | PCIe 4.0 | PCIe 4.0 |
| Tensor Cores | 272 | 192 |
| FP32 Performance | 29.8 TFLOPS | 19.2 TFLOPS |
| Memory Bandwidth | 760 GB/s | 448 GB/s |
| FP16 (with sparsity) | 119 TFLOPS | 153.4 TFLOPS |
| INT8 (with sparsity) | 476 TOPS | Not published |
Performance Analysis
The RTX 3080 achieves a dense FP16 figure of 59.5 TFLOPS that is exactly double its 29.8 TFLOPS FP32 rating while the RTX A4000 lists only a sparse FP16 figure of 153.4 TFLOPS. Sparse FP16 performance on the RTX 3080 stands at 119 TFLOPS so the RTX A4000 holds a 153.4 to 119 advantage in that matched category. Memory bandwidth of 760 GB/s on the RTX 3080 exceeds the 448 GB/s on the RTX A4000 by a ratio of 1.7 to 1 and therefore supports larger batch sizes in memory bound operations. The 320W TDP of the RTX 3080 versus the 140W TDP of the RTX A4000 further separates sustained throughput expectations under identical cooling conditions.
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 3080
RTX 3080 is not offered on-demand by any provider we track right now. See the RTX 3080 rental page for last-seen listed prices and a price alert.
RTX A4000
| Provider | Region | GPUs | Per GPU / hr | Instance / hr | Deploy |
|---|---|---|---|---|---|
| Hyperstack | NORWAY-1 | 1 | $0.15 | — | Deploy |
| Paperspace | ca1 | 1 | $0.76 | — | Deploy |
2 providers in stock, 10 offers (cheapest per provider shown). All RTX A4000 offers, price history and alerts
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When to Choose the RTX 3080
The RTX 3080 suits workloads that require the 760 GB/s bandwidth or the 29.8 TFLOPS FP32 rating. Its dense FP16 rating of 59.5 TFLOPS also provides a documented baseline for precision sensitive tasks where the RTX A4000 supplies no equivalent dense number.
When to Choose the RTX A4000
The RTX A4000 suits workloads that require the 16-20 GB memory capacity or the 140W TDP rating. Its sparse FP16 rating of 153.4 TFLOPS exceeds the 119 TFLOPS sparse FP16 rating of the RTX 3080 and therefore favors sparsity enabled inference paths.
Use Cases
The RTX A4000 provides 16-20 GB memory that exceeds the 10-12 GB on the RTX 3080 and therefore accommodates larger model states.
The RTX 3080 supplies 760 GB/s bandwidth that exceeds the 448 GB/s on the RTX A4000 and therefore sustains higher token throughput.
Both cards share PCIe 4.0 interconnect and Ampere architecture so either meets basic fine tuning requirements at their listed FP32 ratings.
The RTX 3080 delivers 29.8 TFLOPS FP32 that exceeds the 19.2 TFLOPS FP32 on the RTX A4000 and therefore accelerates image generation steps.
The RTX A4000 operates at a 140W TDP that is less than half the 320W TDP of the RTX 3080 and therefore reduces power draw in long running simulations.
Frequently Asked Questions
What is the memory difference between RTX 3080 and RTX A4000?▾
The RTX 3080 contains 10-12 GB GDDR6X memory while the RTX A4000 contains 16-20 GB GDDR6 memory. This capacity gap directly affects maximum model size.
How does bandwidth compare on these two Ampere GPUs?▾
The RTX 3080 reaches 760 GB/s memory bandwidth while the RTX A4000 reaches 448 GB/s memory bandwidth. The higher figure supports larger batch sizes during training or inference.
Which card has higher FP32 performance?▾
The RTX 3080 lists 29.8 TFLOPS FP32 while the RTX A4000 lists 19.2 TFLOPS FP32. The 29.8 figure therefore provides greater throughput in single precision workloads.
What are the TDP values for each GPU?▾
The RTX 3080 carries a 320W TDP and the RTX A4000 carries a 140W TDP. Lower power draw on the RTX A4000 reduces cooling and electricity requirements.
Do both GPUs support the same interconnect?▾
Both the RTX 3080 and the RTX A4000 use PCIe 4.0 interconnect in PCIe form factor. Data transfer rates between host and device remain equivalent on this standard.
Which is cheaper to rent, the RTX 3080 or the RTX A4000?▾
Cloud rental prices for both the RTX 3080 and RTX A4000 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 3080 have compared to the RTX A4000?▾
The RTX 3080 has 10 to 12 GB of GDDR6X memory. The RTX A4000 has 16 to 20 GB of GDDR6 memory.
Can I find RTX 3080 and RTX A4000 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 3080 and the RTX A4000?▾
The RTX 3080 uses the Ampere architecture (2020) while the RTX A4000 uses Ampere (2021). The RTX 3080 has 10-12 GB of GDDR6X at 760 GB/s; the RTX A4000 has 16-20 GB of GDDR6 at 448 GB/s, so the RTX 3080 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 3080 and the RTX A4000. 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 3080Every current offer by provider, daily price history and a price alert.
- Rent RTX A4000Every 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.