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AMD Instinct MI210 vs AMD Radeon RX 6900 XT: Comparison
AMD Instinct MI210 and AMD Radeon RX 6900 XT separate most on memory bus width: AMD Instinct MI210 at 4096 bit, AMD Radeon RX 6900 XT at 256 bit, 94% in favour of AMD Instinct MI210. VRAM splits them by another 75%, again favouring AMD Instinct MI210. They match on gpu brand, tdp and card length.
Specs
| Specification |  |  |
|---|---|---|
| GPU Brand | AMD | AMD |
| Series | Instinct MI200 | Radeon RX 6000 |
| Board Partner | AMD Reference (PCIe dual-slot card, data center/OEM only) | Reference |
| VRAM | 64 GB | 16 GB-75% |
| Tier | Datacenter / AI Accelerator | Flagship |
| Memory Type | HBM2E | GDDR6 |
| Boost Clock | 1700 MHz-24% | 2250 MHz |
| Ray Tracing Support | false | Yes |
| TDP | 300 W | 300 W |
| Architecture | CDNA 2 (single Graphics Compute Die) | RDNA 2 |
| Card Length | 267 mm | 267 mm |
| Slot Width | 2 (dual-slot, passive cooling for server airflow) | 2.5 |
| Memory Bus Width | 4096 bit | 256 bit-94% |
| Memory Bandwidth | 1600 GB/s | 512 GB/s-68% |
| Launch Date | 2022-03 | 2020-12-08 |
Verdict
AMD Instinct MI210
7.3 / 10 Expert Rating
A practical, PCIe-slot-friendly way to get CDNA 2 compute into a standard server, useful for smaller HPC and AI deployments, but clearly the entry point of its generation next to the dual-die MI250X and now well behind the MI300 series.
AMD Radeon RX 6900 XT
9 / 10 Expert Rating
A solid flagship pick if its price and 16GB VRAM allocation match your target resolution.