Specifications Compared
| Spec | MI300X | MI325X |
|---|---|---|
| TDP | 750W | 1000W |
| VRAM | 192 GB | 256 GB |
| FP8 (dense) | 2,614.9 TFLOPS | 2,614.9 TFLOPS |
| Memory Type | HBM3 | HBM3e |
| Architecture | CDNA 3 | CDNA 3 |
| FP16 (dense) | 1,307.4 TFLOPS | 1,307.4 TFLOPS |
| Form Factors | OAM | OAM |
| INT8 (dense) | 2,614.9 TOPS | 2,614.9 TOPS |
| Interconnect | Infinity Fabric, PCIe 5.0 | Infinity Fabric, PCIe 5.0 |
| FP32 Performance | 163.4 TFLOPS | 163.4 TFLOPS |
| FP64 Performance | 81.7 TFLOPS | 81.7 TFLOPS |
| Memory Bandwidth | 5,300 GB/s | 6,000 GB/s |
| FP8 (with sparsity) | 5,229.8 TFLOPS | 5,229.8 TFLOPS |
| FP16 (with sparsity) | 2,614.9 TFLOPS | 2,614.9 TFLOPS |
| INT8 (with sparsity) | 5,229.8 TOPS | 5,229.8 TOPS |
Performance Analysis
Dense FP16 performance equals 1307.4 TFLOPS on the MI300X and the MI325X alike so training throughput per GPU stays constant when sparsity remains unused. The FP16 rating with sparsity reaches 2614.9 TFLOPS on each accelerator and the FP8 dense rating also equals 2614.9 TFLOPS. FP32 performance remains fixed at 163.4 TFLOPS across both devices.
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.
MI300X
MI300X is not offered on-demand by any provider we track right now. See the MI300X rental page for last-seen listed prices and a price alert.
MI325X
MI325X is not offered on-demand by any provider we track right now. See the MI325X rental page for last-seen listed prices and a price alert.
Notify me when MI300X drops below a price
One email when the cheapest in-stock on-demand price per GPU-hour falls below your threshold.
QuantaCloud
Comparing providers? We broker across all of them.
Stop tab-switching between pricing pages. Tell us what you need, 16+ GPUs reserved or cluster capacity, and we return one quote at partner rates within 24 hours.
When to Choose the MI300X
The MI300X fits deployments constrained to a 750W TDP ceiling where the 192 GB HBM3 capacity meets model size needs. Its 5300 GB/s bandwidth supports workloads that do not require the additional 700 GB/s offered by the alternative.
When to Choose the MI325X
The MI325X fits deployments that require 256 GB HBM3e capacity to hold larger models or to increase batch sizes at 6000 GB/s bandwidth. Its higher TDP of 1000W accommodates sustained operation under those expanded memory conditions.
Use Cases
The MI325X supplies 256 GB HBM3e memory which exceeds the 192 GB on the MI300X and supports larger training batches at 6000 GB/s bandwidth.
The MI325X delivers 256 GB capacity against 192 GB on the MI300X allowing longer context lengths while maintaining 1307.4 TFLOPS dense FP16.
Both GPUs share identical 1307.4 TFLOPS dense FP16 and 163.4 TFLOPS FP32 ratings so selection depends on whether 192 GB or 256 GB memory meets the workload.
The MI300X operates at a 750W TDP which reduces power draw compared with the 1000W TDP on the MI325X for diffusion workloads that fit in 192 GB.
FP32 performance stays fixed at 163.4 TFLOPS on both the MI300X and MI325X so either device meets requirements when memory fits within 192 GB or 256 GB.
Frequently Asked Questions
How much more memory does the MI325X provide than the MI300X?▾
The MI325X provides 256 GB HBM3e memory while the MI300X provides 192 GB HBM3 memory resulting in a 64 GB increase.
Do the MI300X and MI325X share the same FP16 performance?▾
Both GPUs deliver 1307.4 TFLOPS dense FP16 and 2614.9 TFLOPS FP16 with sparsity so peak rates match exactly.
What is the TDP difference between the two GPUs?▾
The MI300X lists a 750W TDP while the MI325X lists a 1000W TDP creating a 250W increase on the later model.
How does memory bandwidth compare on the MI300X versus the MI325X?▾
Memory bandwidth equals 5300 GB/s on the MI300X and rises to 6000 GB/s on the MI325X for a 700 GB/s gain.
Are the interconnect options identical on both accelerators?▾
Both the MI300X and MI325X use Infinity Fabric together with PCIe 5.0 in the OAM form factor.
Which GPU offers higher INT8 throughput with sparsity?▾
Both GPUs reach 5229.8 TOPS INT8 with sparsity so the rating remains the same across the MI300X and MI325X.
Which is cheaper to rent, the MI300X or the MI325X?▾
Cloud rental prices for both the MI300X and MI325X 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 MI300X have compared to the MI325X?▾
The MI300X has 192 GB of HBM3 memory. The MI325X has 256 GB of HBM3e memory.
Can I find MI300X and MI325X 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 MI300X and the MI325X?▾
The MI300X uses the CDNA 3 architecture (2023) while the MI325X uses CDNA 3 (2024). Both deliver the same dense FP16 throughput (1,307.4 TFLOPS without sparsity), and the MI325X has 1.1x the memory bandwidth of the MI300X.
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 MI300X and the MI325X. 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 MI300XEvery current offer by provider, daily price history and a price alert.
- Rent MI325XEvery 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.