AMD Radeon RX 9070 XT

Official identity

Card

AMD Radeon RX 9070 XT

gfx

gfx1201

Published VRAM

16 GB

Hardware label, not a bench

ROCm matrix

Official

Same LLVM target as the R9700, half the VRAM. Official on 10.0 / 10.1.

Cited support row: ROCm 10.1.0 compatibility matrix and Linux system requirements. We do not invent a support claim past that listing. AMD product page: RX 9070 XT.

HSA_OVERRIDE: Not needed on current 10.x.

What fits on this card (256K context)

Shopper verdict at 4K, then follow the pair page for 32K and full context. Q4 and up. No printed prices.

What fits in VRAM

Qwen3.6-35B-A3B on llama.cpp, f16 KV, one GPU. Q6 / Q5 / Q4 rows are calculator estimates. UD-Q3_K_XL is a labeled estimate (Hugging Face listing for Qwen3.6-35B-A3B-UD-Q3_K_XL.gguf (16.8 GB)) — not a local desktop run. Speed stays not measured. Change quant or context in the calculator.

Weights notes: Q6_K — Estimate: total_params × 6.56 bpw (nominal GGUF Q6_K; UD-Q6_K_XL uses the same bucket) / 8. Active params do not shrink the file. Q5_K_M — Hugging Face listing for Qwen3.6-35B-A3B-UD-Q5_K_XL.gguf (26.6 GB). Converted 26.6 × 10⁹ bytes → GiB. Not measured VRAM. Q4_K_M — Estimate: total_params × 4.85 bpw (nominal GGUF Q4_K_M) / 8. Active params do not shrink the file. UD-Q3_K_XL — Hugging Face listing for Qwen3.6-35B-A3B-UD-Q3_K_XL.gguf (16.8 GB). Converted 16.8 × 10⁹ bytes → GiB. Not measured VRAM.

System RAM

Minimum system RAM needed and RAM needed at full context for Qwen3.6-35B-A3B on llama.cpp at Q4_K_M, 32K selected and the model’s full context. Estimate until a first-party amdai-bench/run@1 card exists for this SKU. Rounded up to a real DIMM kit.

llama.cpp-first stack

1. Step 1

   llama.cpp first

   Vulkan is the consumer default on this site. HIP when rocminfo lists gfx1201. Ollama and vLLM are not the house path for this card.

2. Step 2

   Same gfx1201 family as the R9700

   gfx1201 is the same LLVM target as the measured 32 GB R9700. Install the gfx1201 ROCm family package. Do not mix a gfx110x 7900 install onto this card.

3. Step 3

   When 16 GB is enough

   Size Qwen3.6-35B-A3B on the calculator. House 35B Q4–Q6 files do not fit this VRAM — expect RAM offload or a lighter listed Q3 file, both estimates. Buy the R9700 when you want those Q4+ files in VRAM at long context.

4. Step 4

   Setup, then Stack Lab doctor

   First-run setup is Ubuntu. Open Stack Lab doctor for the gfx1201 install family. House daily and Flash profiles are R9700 / local desktop — they do not apply to this 16 GB card. Packages are not published yet.

Compare with…

Head-to-head pages use the same VRAM, bandwidth, and calculator fit already on the sheets. Q3 is a labeled estimate. No invented prices. RX 9070 XT against the other published sheets:

• Compare GPUs
• vs R9700
• vs RX 7800 XT
• vs RX 7900 GRE
• vs RX 7900 XTX
• vs RX 9060 XT
• vs RX 9070
• vs Strix Halo

Also: PRO W6800 · PRO W7700 · PRO W7800 · PRO W7900 · RX 6700 XT · RX 6800 XT · RX 6950 XT · RX 7600 · RX 7600 XT · RX 7700 XT · RX 7900 XT · RX 9070 GRE