Specifications Compared
| Spec | A100 SXM4 80GB | MI300X |
|---|---|---|
| TDP | 400W | 750W |
| VRAM | 80 GB | 192 GB |
| CUDA Cores | 6,912 | Not published |
| FP8 (dense) | Not published | 2,614.9 TFLOPS |
| Memory Type | HBM2e | HBM3 |
| Architecture | Ampere | CDNA 3 |
| FP16 (dense) | 312 TFLOPS | 1,307.4 TFLOPS |
| Form Factors | SXM4 | OAM |
| INT8 (dense) | 624 TOPS | 2,614.9 TOPS |
| Interconnect | NVLink, PCIe 4.0, InfiniBand | Infinity Fabric, PCIe 5.0 |
| Tensor Cores | 432 | Not published |
| FP32 Performance | 19.5 TFLOPS | 163.4 TFLOPS |
| FP64 Performance | 9.7 TFLOPS | 81.7 TFLOPS |
| Memory Bandwidth | 2,039 GB/s | 5,300 GB/s |
| FP8 (with sparsity) | Not published | 5,229.8 TFLOPS |
| FP16 (with sparsity) | 624 TFLOPS | 2,614.9 TFLOPS |
| INT8 (with sparsity) | 1,248 TOPS | 5,229.8 TOPS |
Performance Analysis
The MI300X variant delivers FP16 dense throughput of 1307.4 TFLOPS compared to the A100 variant FP16 dense throughput of 312 TFLOPS while the MI300X FP16 figure with sparsity reaches 2614.9 TFLOPS against the A100 FP16 figure with sparsity of 624 TFLOPS. This FP16 dense to FP16 dense ratio indicates the MI300X variant supports larger model training and inference workloads than the A100 variant. Memory bandwidth of 5300 GB per second shared across MI300X variants enables larger batch sizes than the 2039 GB per second bandwidth shared across A100 variants during both training and inference operations.
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 SXM4 80GB
| 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 | 2 | $1.09 | $2.18 | Deploy |
| Hyperstack | CANADA-1 | 1 | $1.35 | — | Deploy |
| Massed Compute | us-central-2 | 1 | $1.38 | — | Deploy |
11 providers in stock, 39 offers (cheapest per provider shown). All A100 SXM4 80GB offers, price history and alerts
MI300X
1 provider in stock, 1 offer. All MI300X offers, price history and alerts
Notify me when A100 SXM4 80GB drops below a price
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When to Choose the A100 SXM4 80GB
The A100 SXM4 80GB variant suits environments that require SXM4 form factor compatibility with existing NVLink clusters and 400 W TDP limits. Organizations running workloads that fit within 80 GB HBM2e memory and that value PCIe 4.0 or InfiniBand interconnects select this variant for established infrastructure.
When to Choose the MI300X
The MI300X variant fits deployments that need 192 GB HBM3 memory capacity and OAM form factor support with Infinity Fabric connectivity.
Use Cases
The MI300X variant supplies 192 GB HBM3 memory and 1307.4 TFLOPS FP16 dense throughput that accommodate larger models than the A100 SXM4 80GB variant 80 GB capacity and 312 TFLOPS FP16 dense throughput.
The MI300X variant 5300 GB per second memory bandwidth shared by the family supports higher throughput inference than the A100 variant 2039 GB per second bandwidth.
Both variants handle fine tuning tasks with the A100 variant 80 GB HBM2e memory sufficient for many models and the MI300X variant 192 GB HBM3 memory available for larger ones.
The A100 SXM4 80GB variant SXM4 form factor and 400 W TDP integrate readily into existing graphics rendering clusters that match its 312 TFLOPS FP16 dense performance.
The MI300X variant 163.4 TFLOPS FP32 throughput and 5300 GB per second bandwidth exceed the A100 variant 19.5 TFLOPS FP32 throughput and 2039 GB per second bandwidth for compute intensive simulations.
Frequently Asked Questions
How do the FP16 dense figures compare between the two GPUs?▾
The A100 variant achieves 312 TFLOPS FP16 dense throughput and the MI300X variant achieves 1307.4 TFLOPS FP16 dense throughput. Both figures represent dense performance without sparsity.
What TDP values apply to each GPU family?▾
The A100 family including the SXM4 80GB variant operates at 400 W TDP while the MI300X family operates at 750 W TDP. These TDP ratings apply across all variants in each family.
What memory bandwidth is shared by variants in each family?▾
The A100 family shares 2039 GB per second memory bandwidth while the MI300X family shares 5300 GB per second memory bandwidth. These bandwidth values apply to every variant within the respective families.
Which is cheaper to rent, the A100 SXM4 80GB or the MI300X?▾
Cloud rental prices for both the A100 SXM4 80GB and MI300X 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 SXM4 80GB have compared to the MI300X?▾
The A100 SXM4 80GB has 80 GB of HBM2e memory. The MI300X has 192 GB of HBM3 memory.
Can I find A100 SXM4 80GB and MI300X 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 SXM4 80GB and the MI300X?▾
The A100 SXM4 80GB uses the Ampere architecture (2020) while the MI300X uses CDNA 3 (2023). The MI300X delivers 4.2x the dense FP16 throughput (1,307.4 vs 312 TFLOPS, both without sparsity) and 2.6x the memory bandwidth of the A100 SXM4 80GB.
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 SXM4 80GB and the MI300X. 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 MI300XEvery 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.