AMD192 GB VRAM5,300 GB/s$2.5/hr

Qwen 3 14B on AMD MI300X 192GB: Does It Fit, How Fast, What It Costs

Qwen 3 14B at FP16 needs 28.0 GB for its weights and 38.7 GB in total at 8K context with 8 concurrent users. That means it fits on a single AMD MI300X 192GB. Every figure is computed by tokcalc's open-source capacity model.

Fits?
Yes, 1 GPU
38.7 GB needed / 192 GB available
Decode speed
123.0
tok/s per stream
Aggregate
1476
tok/s @ 8 concurrent
Cost / 1M tokens
$0.4704
1× AMD MI300X 192GB
What changes as you add AMD MI300X 192GBs
Tensor-parallel degree vs VRAM, throughput, and cost. Cost scales linearly with GPU count; decode throughput scales near-linearly too, so cost per token stays roughly flat.
GPUsTotal VRAMVRAM neededDecode tok/sAggregate tok/sTTFTCost / 1M tokFits?
1× AMD192 GB38.7 GB123.01476389.1 ms$0.4704✓
2× AMD384 GB38.7 GB209.25020210.3 ms$0.2767✓
4× AMD768 GB38.7 GB418.320079120.1 ms$0.1383✓
8× AMD1536 GB38.7 GB836.68031875.1 ms$0.0692✓
Concurrency vs context length
On 1× AMD MI300X 192GB at FP16. KV cache scales linearly with context, so this is the number of users your GPUs can actually serve.
ContextConcurrent usersKV per requestFits?
4K244687.2 MB✓ fits
8K1221.34 GB✓ fits
33K305.37 GB✓ fits
66K1510.74 GB✓ fits
131K721.47 GB✓ fits
Other GPUs that run Qwen 3 14B
Same workload, same quantization — ranked by value (tokens per dollar-hour).
GPUGPUsAggregate tok/sCost / 1M tok
RTX 5090 32GB2×1697$0.1637
A100 40GB SXM41×431.8$0.5790
AMD MI325X 288GB1×1671$0.5817
A100 80GB SXM41×557.1$0.5983
Intel Gaudi 3 128GB1×919.3$0.6043
H100 SXM5 80GB1×933.2$0.7441
Frequently asked questions

Can Qwen 3 14B run on AMD MI300X 192GB?

Yes. Qwen 3 14B at FP16 needs 38.7 GB including the KV cache, and AMD MI300X 192GB has 192 GB — so it fits on a single GPU.

How fast is Qwen 3 14B on AMD MI300X 192GB?

123.0 tokens/sec per stream and 1476 tok/s aggregate with continuous batching at 8 concurrent users. Time to first token is 389.1 ms, and inter-token latency is 8.1 ms.

What does Qwen 3 14B on AMD MI300X 192GB cost per million tokens?

$0.4704 per 1M output tokens at 1× AMD MI300X 192GB ($2.50/hr). That is the marginal hardware cost — add idle capacity, ops, and egress for the real figure.

How much VRAM does Qwen 3 14B need on AMD MI300X 192GB?

28.0 GB for the weights at FP16, plus 10.7 GB of KV cache for 8 concurrent requests at 8K context — 38.7 GB total. Every extra concurrent user at long context costs more, so leave headroom.

Is AMD MI300X 192GB the right choice for Qwen 3 14B?

It works. Compare $0.4704 per 1M tokens against the alternatives below — the cheapest option that fits the same workload is 4× RTX 3080 10GB at $0.0772, and the fastest is 1× Cerebras CS-3 (WSE-3) at 5571 tok/s.

Adjust the workload yourself

Same formulas, your context length, concurrency, and quantisation.

Open in calculator