Specifications Compared
| Spec | RTX 4080 | RTX A4000 |
|---|---|---|
| TDP | 320W | 140W |
| VRAM | 16 GB | 16-20 GB |
| CUDA Cores | 9,728 | 6,144 |
| FP8 (dense) | 194.9 TFLOPS | Not published |
| Memory Type | GDDR6X | GDDR6 |
| Architecture | Ada Lovelace | Ampere |
| FP16 (dense) | 97.5 TFLOPS | Not published |
| Form Factors | PCIe | PCIe |
| INT8 (dense) | 389.9 TOPS | Not published |
| Interconnect | PCIe 4.0 | PCIe 4.0 |
| Tensor Cores | 304 | 192 |
| FP32 Performance | 48.7 TFLOPS | 19.2 TFLOPS |
| Memory Bandwidth | 717 GB/s | 448 GB/s |
| FP8 (with sparsity) | 389.8 TFLOPS | Not published |
| FP16 (with sparsity) | 195 TFLOPS | 153.4 TFLOPS |
| INT8 (with sparsity) | 779.8 TOPS | Not published |
Performance Analysis
The RTX 4080 delivers dense FP16 performance of 97.5 TFLOPS against the RTX A4000 sparse FP16 figure of 153.4 TFLOPS so any training workload that requires dense tensor operations favors the higher dense rating on the RTX 4080. Inference tasks that tolerate sparsity can utilize the 195 TFLOPS sparse FP16 on the RTX 4080 or the 153.4 TFLOPS sparse FP16 on the RTX A4000 with the bandwidth gap of 717 GB/s versus 448 GB/s directly limiting maximum batch sizes on the RTX A4000. FP32 throughput at 48.7 TFLOPS on the RTX 4080 compared with 19.2 TFLOPS on the RTX A4000 further widens the gap for precision-sensitive scientific kernels where dense operations dominate.
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 4080
RTX 4080 is not offered on-demand by any provider we track right now. See the RTX 4080 rental page for last-seen listed prices and a price alert.
RTX A4000
| Provider | Region | GPUs | Per GPU / hr | Instance / hr | Deploy |
|---|---|---|---|---|---|
| Paperspace | ny2 | 2 | $0.76 | $1.52 | Deploy |
1 provider in stock, 9 offers (cheapest per provider shown). All RTX A4000 offers, price history and alerts
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When to Choose the RTX 4080
The RTX 4080 suits workloads that demand the 97.5 TFLOPS dense FP16 rating and 717 GB/s bandwidth for larger batch processing in training pipelines. Its 48.7 TFLOPS FP32 rating also supports accelerated scientific computing sessions that exceed the 19.2 TFLOPS limit of the alternative card.
When to Choose the RTX A4000
The RTX A4000 fits power-constrained environments where the 140W TDP rating matters more than peak throughput and where the 153.4 TFLOPS sparse FP16 figure meets inference needs without exceeding thermal budgets. Its 16-20 GB GDDR6 capacity offers flexibility for memory-intensive tasks that stay within the 448 GB/s bandwidth envelope.
Use Cases
The RTX 4080 supplies 97.5 TFLOPS dense FP16 and 48.7 TFLOPS FP32 that exceed the RTX A4000 ratings for sustained training throughput.
The RTX 4080 provides 195 TFLOPS sparse FP16 together with 717 GB/s bandwidth that support higher token rates than the 153.4 TFLOPS sparse FP16 on the RTX A4000.
The RTX 4080 97.5 TFLOPS dense FP16 rating enables faster gradient updates compared with the sparse-only FP16 specification of the RTX A4000.
The RTX 4080 717 GB/s memory bandwidth and 97.5 TFLOPS dense FP16 rating accommodate larger diffusion batches than the 448 GB/s limit on the RTX A4000.
The RTX 4080 48.7 TFLOPS FP32 performance surpasses the 19.2 TFLOPS FP32 rating of the RTX A4000 for dense matrix workloads.
Frequently Asked Questions
What FP32 performance does each GPU deliver?▾
The RTX 4080 reaches 48.7 TFLOPS FP32 while the RTX A4000 reaches 19.2 TFLOPS FP32. This difference directly scales execution time for single-precision scientific kernels.
How does memory bandwidth compare between the two cards?▾
The RTX 4080 provides 717 GB/s bandwidth whereas the RTX A4000 provides 448 GB/s bandwidth. The higher figure on the RTX 4080 permits larger batch sizes during inference and training.
Which GPU offers higher dense FP16 throughput?▾
The RTX 4080 lists 97.5 TFLOPS dense FP16. The RTX A4000 does not publish a dense FP16 value and only specifies 153.4 TFLOPS with sparsity.
What TDP values distinguish the RTX 4080 from the RTX A4000?▾
The RTX 4080 carries a 320W TDP rating while the RTX A4000 carries a 140W TDP rating. Lower power draw on the RTX A4000 suits dense server deployments.
Do both GPUs support the same interconnect standard?▾
Both the RTX 4080 and the RTX A4000 use PCIe 4.0 interconnect. No difference exists in host interface specifications between the two cards.
Which is cheaper to rent, the RTX 4080 or the RTX A4000?▾
Cloud rental prices for both the RTX 4080 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 4080 have compared to the RTX A4000?▾
The RTX 4080 has 16 GB of GDDR6X memory. The RTX A4000 has 16 to 20 GB of GDDR6 memory.
Can I find RTX 4080 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 4080 and the RTX A4000?▾
The RTX 4080 uses the Ada Lovelace architecture (2022) while the RTX A4000 uses Ampere (2021). The RTX 4080 has 16 GB of GDDR6X at 717 GB/s; the RTX A4000 has 16-20 GB of GDDR6 at 448 GB/s, so the RTX 4080 has 1.6x 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 4080 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 4080Every 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.