Qwen 3 235B-A22B (MoE) at AWQ 4-bit needs 129.3 GB for its weights and 141.9 GB in total at 8K context with 8 concurrent users. That means it fits on a single AMD MI325X 288GB. Every figure is computed by tokcalc's open-source capacity model.
| GPUs | Total VRAM | VRAM needed | Decode tok/s | Aggregate tok/s | TTFT | Cost / 1M tok | Fits? |
|---|---|---|---|---|---|---|---|
| 1× AMD | 288 GB | 141.9 GB | 283.6 | 3404 | 585.1 ms | $0.2856 | ✓ |
| 2× AMD | 576 GB | 141.9 GB | 482.2 | 11572 | 307.9 ms | $0.1680 | ✓ |
| 4× AMD | 1152 GB | 141.9 GB | 964.4 | 46289 | 168.9 ms | $0.0840 | ✓ |
| 8× AMD | 2304 GB | 141.9 GB | 1929 | 185158 | 99.5 ms | $0.0420 | ✓ |
| Context | Concurrent users | KV per request | Fits? |
|---|---|---|---|
| 4K | 201 | 807.5 MB | ✓ fits |
| 8K | 100 | 1.58 GB | ✓ fits |
| 33K | 25 | 6.31 GB | ✓ fits |
| 66K | 12 | 12.62 GB | ✓ fits |
| 131K | 6 | 25.23 GB | ✓ fits |
| GPU | GPUs | Aggregate tok/s | Cost / 1M tok |
|---|---|---|---|
| RTX 5090 32GB | 8× | 55300 | $0.0201 |
| L40S 48GB | 4× | 6666 | $0.1167 |
| A100 80GB SXM4 | 2× | 3857 | $0.1728 |
| H100 SXM5 80GB | 2× | 6461 | $0.2150 |
| AMD MI300X 192GB | 1× | 3007 | $0.2310 |
| H200 SXM5 141GB | 2× | 9258 | $0.2400 |
Yes. Qwen 3 235B-A22B (MoE) at AWQ 4-bit needs 141.9 GB including the KV cache, and AMD MI325X 288GB has 288 GB — so it fits on a single GPU.
283.6 tokens/sec per stream and 3404 tok/s aggregate with continuous batching at 8 concurrent users. Time to first token is 585.1 ms, and inter-token latency is 3.5 ms.
$0.2856 per 1M output tokens at 1× AMD MI325X 288GB ($3.50/hr). That is the marginal hardware cost — add idle capacity, ops, and egress for the real figure.
129.3 GB for the weights at AWQ 4-bit, plus 12.6 GB of KV cache for 8 concurrent requests at 8K context — 141.9 GB total. Every extra concurrent user at long context costs more, so leave headroom.
It works. Compare $0.2856 per 1M tokens against the alternatives below — the cheapest option that fits the same workload is 8× RTX 5090 32GB at $0.0201, and the fastest is 4× Cerebras CS-3 (WSE-3) at 154298 tok/s.
Same formulas, your context length, concurrency, and quantisation.