Specifications Compared
| Spec | A100 | RTX 4080 |
|---|---|---|
| TDP | 400W | 320W |
| VRAM | 40-80 GB | 16 GB |
| CUDA Cores | 6,912 | 9,728 |
| FP8 (dense) | Not published | 194.9 TFLOPS |
| Memory Type | HBM2e | GDDR6X |
| Architecture | Ampere | Ada Lovelace |
| FP16 (dense) | 312 TFLOPS | 97.5 TFLOPS |
| Form Factors | SXM4, PCIe | PCIe |
| INT8 (dense) | 624 TOPS | 389.9 TOPS |
| Interconnect | NVLink, PCIe 4.0, InfiniBand | PCIe 4.0 |
| Tensor Cores | 432 | 304 |
| FP32 Performance | 19.5 TFLOPS | 48.7 TFLOPS |
| FP64 Performance | 9.7 TFLOPS | Not published |
| Memory Bandwidth | 2,039 GB/s | 717 GB/s |
| FP8 (with sparsity) | Not published | 389.8 TFLOPS |
| FP16 (with sparsity) | 624 TFLOPS | 195 TFLOPS |
| INT8 (with sparsity) | 1,248 TOPS | 779.8 TOPS |
Performance Analysis
The A100 delivers 312 TFLOPS dense FP16 while the RTX 4080 delivers 97.5 TFLOPS dense FP16. This gap indicates the A100 processes dense FP16 operations more than three times faster than the RTX 4080 for training workloads that rely on dense FP16. The RTX 4080 reaches 48.7 TFLOPS FP32 compared with 19.5 TFLOPS FP32 on the A100 so FP32 heavy tasks favor the RTX 4080. Memory bandwidth of 2039 GB/s on the A100 versus 717 GB/s on the RTX 4080 permits larger batch sizes during training or inference on the A100. The A100 also provides 624 TOPS dense INT8 against 389.9 TOPS dense INT8 on the RTX 4080 which affects quantized inference throughput when both figures remain dense.
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.
A100
| Provider | Region | GPUs | Per GPU / hr | Instance / hr | Deploy |
|---|---|---|---|---|---|
| LeaderGPU | The Netherlands | 8 | $0.68 | $5.42 | Deploy |
| Vast.ai | Czechia, CZ | 1 | $0.73 | — | Deploy |
| ThunderCompute | USA | 1 | $1.09 | — | Deploy |
| Hyperstack | CANADA-1 | 2 | $1.35 | $2.70 | Deploy |
| Massed Compute | us-central-3 | 2 | $1.35 | $2.70 | Deploy |
11 providers in stock, 47 offers (cheapest per provider shown). All A100 offers, price history and alerts
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.
Notify me when A100 drops below a price
One email when the cheapest in-stock on-demand price per GPU-hour falls below your threshold. Cheapest right now: $0.68/GPU-hr.
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When to Choose the A100
The A100 suits LLM training and fine tuning because its 40 to 80 GB VRAM capacity and 2039 GB/s bandwidth support large models that exceed 16 GB limits. Its 312 TFLOPS dense FP16 and NVLink interconnect further enable distributed training across multiple units where high memory and interconnect matter most.
When to Choose the RTX 4080
The RTX 4080 suits Stable Diffusion and certain inference tasks because its 48.7 TFLOPS FP32 and 194.9 TFLOPS dense FP8 provide advantages in precision formats unavailable on the A100. Its 320W TDP also reduces power draw relative to the 400W TDP of the A100 in single GPU consumer setups.
Use Cases
The A100 supplies 312 TFLOPS dense FP16 and 40 to 80 GB VRAM which exceed the RTX 4080 limits for large model training.
The A100 provides 624 TOPS dense INT8 and 2039 GB/s bandwidth which support higher throughput on quantized models than the RTX 4080.
The A100 offers 312 TFLOPS dense FP16 along with high memory capacity that accommodates fine tuning of models beyond 16 GB.
The RTX 4080 reaches 48.7 TFLOPS FP32 and 194.9 TFLOPS dense FP8 which benefit diffusion workloads that use those precisions.
The A100 delivers 2039 GB/s memory bandwidth and 19.5 TFLOPS FP32 which align with bandwidth intensive scientific simulations.
Frequently Asked Questions
How does FP16 performance compare between the A100 and RTX 4080?▾
The A100 achieves 312 TFLOPS dense FP16 while the RTX 4080 achieves 97.5 TFLOPS dense FP16. The A100 also reaches 624 TFLOPS with sparsity compared with 195 TFLOPS with sparsity on the RTX 4080.
What memory configurations distinguish the A100 from the RTX 4080?▾
The A100 provides 40 to 80 GB HBM2e VRAM with 2039 GB/s bandwidth. The RTX 4080 provides 16 GB GDDR6X VRAM with 717 GB/s bandwidth.
Which GPU offers higher FP32 throughput?▾
The RTX 4080 delivers 48.7 TFLOPS FP32. The A100 delivers 19.5 TFLOPS FP32.
How do TDP values differ between the two GPUs?▾
The A100 lists a 400W TDP. The RTX 4080 lists a 320W TDP.
What interconnect options exist on each GPU?▾
The A100 supports NVLink, PCIe 4.0, and InfiniBand. The RTX 4080 supports only PCIe 4.0.
How do INT8 figures compare when kept dense?▾
The A100 reaches 624 TOPS dense INT8. The RTX 4080 reaches 389.9 TOPS dense INT8.
Which is cheaper to rent, the A100 or the RTX 4080?▾
Cloud rental prices for both the A100 and RTX 4080 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 A100 have compared to the RTX 4080?▾
The A100 has 40 to 80 GB of HBM2e memory. The RTX 4080 has 16 GB of GDDR6X memory.
Can I find A100 and RTX 4080 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 A100 and the RTX 4080?▾
The A100 uses the Ampere architecture (2020) while the RTX 4080 uses Ada Lovelace (2022). The A100 delivers 3.2x the dense FP16 throughput (312 vs 97.5 TFLOPS, both without sparsity) and 2.8x the memory bandwidth of the RTX 4080.
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 A100 and the RTX 4080. 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 A100Every current offer by provider, daily price history and a price alert.
- Rent RTX 4080Every 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.