Specifications Compared
| Spec | MI250X | RTX 3080 |
|---|---|---|
| TDP | 560W | 320W |
| VRAM | 128 GB | 10-12 GB |
| CUDA Cores | Not published | 8,704 |
| Memory Type | HBM2e | GDDR6X |
| Architecture | CDNA 2 | Ampere |
| FP16 (dense) | 383 TFLOPS | 59.5 TFLOPS |
| Form Factors | OAM | PCIe |
| INT8 (dense) | 383 TOPS | 238 TOPS |
| Interconnect | Infinity Fabric, PCIe 4.0 | PCIe 4.0 |
| Tensor Cores | Not published | 272 |
| FP32 Performance | 47.9 TFLOPS | 29.8 TFLOPS |
| FP64 Performance | 47.9 TFLOPS | Not published |
| Memory Bandwidth | 3,277 GB/s | 760 GB/s |
| FP16 (with sparsity) | Not published | 119 TFLOPS |
| INT8 (with sparsity) | Not published | 476 TOPS |
Performance Analysis
Dense FP16 performance reaches 383 TFLOPS on the MI250X against 59.5 TFLOPS dense FP16 on the RTX 3080 so the MI250X sustains larger batch sizes during training. FP32 throughput stands at 47.9 TFLOPS on the MI250X versus 29.8 TFLOPS on the RTX 3080 which favors the MI250X for precision sensitive scientific workloads. Memory bandwidth of 3277 GB/s on the MI250X compared with 760 GB/s on the RTX 3080 allows the MI250X to move data for models that exceed the 12 GB limit of the RTX 3080. Dense INT8 figures of 383 TOPS on the MI250X versus 238 TOPS on the RTX 3080 further separate inference throughput when sparsity is not applied.
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.
MI250X
MI250X is not offered on-demand by any provider we track right now. See the MI250X rental page for last-seen listed prices and a price alert.
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.
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When to Choose the MI250X
The MI250X suits workloads that require 128 GB HBM2e capacity and 3277 GB/s bandwidth such as large scale scientific computing. Its 383 TFLOPS dense FP16 rating and Infinity Fabric interconnect support multi GPU scaling beyond the limits of a single 12 GB card.
When to Choose the RTX 3080
The RTX 3080 fits environments constrained to 320 W TDP and PCIe form factor where 59.5 TFLOPS dense FP16 meets smaller model requirements. Its 10 to 12 GB GDDR6X memory and 760 GB/s bandwidth align with consumer scale inference tasks that stay within those bounds.
Use Cases
The MI250X supplies 383 TFLOPS dense FP16 and 128 GB memory that accommodate models larger than the 12 GB limit of the RTX 3080.
Dense INT8 performance of 383 TOPS on the MI250X exceeds 238 TOPS on the RTX 3080 while its bandwidth supports sustained throughput.
The MI250X 3277 GB/s bandwidth and 47.9 TFLOPS FP32 rating enable larger batch fine tuning than the RTX 3080 760 GB/s and 29.8 TFLOPS FP32.
The RTX 3080 320 W TDP and PCIe form factor match consumer deployment where 59.5 TFLOPS dense FP16 suffices for typical image sizes.
The MI250X 47.9 TFLOPS FP32 and 128 GB memory handle large scientific datasets beyond the RTX 3080 29.8 TFLOPS FP32 and 12 GB capacity.
Frequently Asked Questions
What is the FP16 performance difference between MI250X and RTX 3080?▾
The MI250X reaches 383 TFLOPS dense FP16 while the RTX 3080 reaches 59.5 TFLOPS dense FP16.
What TDP values are listed for these GPUs?▾
The MI250X lists 560 W TDP and the RTX 3080 lists 320 W TDP.
Which GPU offers higher memory bandwidth?▾
The MI250X provides 3277 GB/s bandwidth compared with 760 GB/s on the RTX 3080.
Do both GPUs support the same interconnect?▾
The MI250X includes Infinity Fabric while the RTX 3080 uses PCIe 4.0.
What FP32 ratings appear in the specifications?▾
The MI250X lists 47.9 TFLOPS FP32 and the RTX 3080 lists 29.8 TFLOPS FP32.
Which is cheaper to rent, the MI250X or the RTX 3080?▾
Cloud rental prices for both the MI250X and RTX 3080 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 MI250X have compared to the RTX 3080?▾
The MI250X has 128 GB of HBM2e memory. The RTX 3080 has 10 to 12 GB of GDDR6X memory.
Can I find MI250X and RTX 3080 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 MI250X and the RTX 3080?▾
The MI250X uses the CDNA 2 architecture (2021) while the RTX 3080 uses Ampere (2020). The MI250X delivers 6.4x the dense FP16 throughput (383 vs 59.5 TFLOPS, both without sparsity) and 4.3x the memory bandwidth of the RTX 3080.
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Related comparisons
How this page is made
- Specifications come from the NVIDIA, AMD and Intel datasheets for the MI250X and the RTX 3080. 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 MI250XEvery current offer by provider, daily price history and a price alert.
- Rent RTX 3080Every current offer by provider, daily price history and a price alert.
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