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Can the AMD Radeon RX 7900 XT run Qwen3.8 27B?

Radeon RX 7900 XT × Qwen3.8 27B8K context
YesRuns fully on the GPU
Memory at Q4_K_M18 GB of 20 GB
Weights 16.9 GBKV cache 0.5 GBRuntime 0.6 GB
QuantQ4_K_MGood, most popular
Speed~28tokens per second
Max context37Ktokens that fit at Q4_K_M
  1. FP16
  2. Q8_0
  3. Q6_K
  4. Q5_K_M
  5. Q4_K_M
  6. Q3_K_M
  7. Q2_K

Yes. The AMD Radeon RX 7900 XT can run Qwen3.8 27B fully in VRAM at Q4_K_M (good, most popular), using about 18 GB of the 20 GB available, at roughly 28 tokens/second.

Try other context lengths

Run it with Ollama

With Ollama installed, one command downloads and starts Qwen3.8 27B:

ollama run qwen3.8:27b

Ollama's default download is Q4_K_M (about 18 GB here). That is also the best quant that fits.

New to this? Step-by-step setup for the Radeon RX 7900 XT

Run it in the cloud

No AMD Radeon RX 7900 XT? Run Qwen3.8 27B in the cloud.

Rent a cloud GPU by the hour. No upfront cost, stop any time.

Rent a GPU on RunPodRent a GPU on Vast.ai

Memory needed by quantization

At 8,192 tokens of context. The black line marks the 20 GB the AMD Radeon RX 7900 XT can use.

QuantQualityMemoryFits?Speed
FP16Full quality56.7 GBToo big—
Q8_0Near-lossless30.7 GBToo big—
Q6_KExcellent23.9 GBToo big—
Q5_K_MVery good20.9 GBToo big—
Q4_K_MGood, most popular18 GBFits~28 tok/s
Q3_K_MNoticeably degraded14.7 GBFits~35 tok/s
Q2_KHeavily degraded11.6 GBFits~46 tok/s

Measured speed from real Radeon RX 7900 XT owners

Tokens per second that people measured on their own AMD Radeon RX 7900 XT, next to our estimate.

No one has measured Qwen3.8 27B on the AMD Radeon RX 7900 XT yet. The speeds above are estimates. Run the benchmark and yours becomes the first real number on this page.

Have a Radeon RX 7900 XT? Add your real speed

One command times Qwen3.8 27B in your own Ollama, shows you exactly what it would send, and asks before sending anything. No sign-up, no personal data.

macOS and Linux

curl -fsSL https://gpufit.dev/bench.sh | sh -s -- qwen3.8:27b

Windows (PowerShell)

$env:GPUFIT_MODEL="qwen3.8:27b"; irm https://gpufit.dev/bench.ps1 | iex

How the benchmark works

GPUs that run Qwen3.8 27B comfortably

Models that run well on the AMD Radeon RX 7900 XT

Frequently asked questions

Can AMD Radeon RX 7900 XT run Qwen3.8 27B?

Yes. The AMD Radeon RX 7900 XT can run Qwen3.8 27B fully in VRAM at Q4_K_M (good, most popular), using about 18 GB of the 20 GB available, at roughly 28 tokens/second.

How much VRAM does Qwen3.8 27B need?

About 18 GB at Q4_K_M with 8,192 tokens of context, and about 56.7 GB at full FP16 precision.

How fast is Qwen3.8 27B on the AMD Radeon RX 7900 XT?

Roughly 28 tokens per second at Q4_K_M, estimated from the AMD Radeon RX 7900 XT's 800 GB/s memory bandwidth.