Side-by-side GPU comparison: specs, memory, compute performance, and live cloud pricing.
Verdict
MI350X has 96 GB more VRAM, making it better suited for large models and long context windows. For compute-bound workloads like training, MI350X delivers 1.9× higher FP16 throughput. MI350X supports a broader range of models (671 vs 659 from this catalog), giving more flexibility.
Specifications
| MI300X | MI350X | |
|---|---|---|
| VRAM | 192 GB | 288 GB |
| VRAM Type | HBM3 | HBM3e |
| Memory Bandwidth | 5.3 TB/s | 8.0 TB/s |
| FP16 Performance | 1307 TFLOPS | 2500 TFLOPS |
| Manufacturer | AMD | AMD |
| FP8 Support | Yes | Yes |
| FP4 Support | No | Yes |
Price / Performance
Based on cheapest single-GPU on-demand pricing. Lower $/TFLOP = better compute value; lower $/GB = better memory value.
| MI300X | MI350X | |
|---|---|---|
| $/hr (cheapest) | $1.99 | — |
| $/TFLOP (compute value) | $0.0015 | — |
| $/GB VRAM (memory value) | $0.0104 | — |
Cloud Pricing
Cheapest on-demand price per provider (single GPU).
Model Compatibility
Models from the catalog that fit on each GPU, grouped by required precision.
MI300X (659 models)
MI350X (671 models)
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Pricing data refreshed hourly · Last updated April 11, 2026 · Browse all comparisons