Can I Run InternLM 3 on AMD Radeon RX 9070 XT?
作者： Jakub Rusinowski · 最后更新： 2026年9月29日
Yes, comfortably — you'll have ~3.9 GB of headroom running InternLM 3 20B Instruct at Q4_K_M (12.1 GB, ~31 tok/s (est.)) with room for up to 8K context.
See what else this hardware can run →
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AMD Radeon RX 9070 XT Specs
| VRAM | 16 GB |
| Memory Bandwidth | 640 GB/s |
InternLM 3 20B Instruct on the AMD Radeon RX 9070 XT: VRAM by quantization
| Quant | VRAM needed | Fits 16 GB? | Max context | Whole PC |
|---|---|---|---|---|
| F16 | 41.6 GB | ✗ No | — | — |
| Q8_0 | 22.8 GB | ✗ No | — | Build for this |
| Q6_K | 18 GB | ✗ No | — | — |
| Q5_K_M | 15.8 GB | ✓ Yes | 4K | — |
| Q4_K_M | 13.7 GB | ✓ Yes | 8K | Build for this |
| Q3_K_M | 10.1 GB | ✓ Yes | 32K | — |
| Q2_K | 8.2 GB | ✓ Yes | 32K | — |
Assumes a 4K-token context with an f16 KV cache, on an estimated architecture — this model publishes no config we can read. A longer window needs more; a quantized KV cache needs less. “Max context” is the largest window that still fits in 16 GB. Figures are estimates from parameter count, quantization and memory bandwidth — the analyzer lets you tune KV-cache quant and context.
Context costs VRAM too. At Q4_K_M on the AMD Radeon RX 9070 XT: 8K 14.5 GB · 32K 19.2 GB ✗. Past 32K it no longer fits 16 GB — a q8_0 KV cache buys roughly half of that back, which the calculator will price for you.
No compatible GPU? InternLM 3 20B Instruct on 24 GB of system RAM, CPU only: runs.
InternLM 3 Sizes That Fit the AMD Radeon RX 9070 XT
| InternLM 3 20B Instruct | Q4_K_M · 12.1 GB · ~31 tok/s (est.) |
| InternLM 3 8B Instruct | Q4_K_M · 5.3 GB · ~63 tok/s (est.) |
At 2 hrs/day, buying (~$599) beats renting at $0.34/hr after about 2.4 years.
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Cloud rates verified 2026-07 — estimates, and marketplace prices vary. Buying price is GPU MSRP only, not a full PC.
FAQ
Is the AMD Radeon RX 9070 XT enough to run InternLM 3 locally?
Yes, comfortably — you'll have ~3.9 GB of headroom running InternLM 3 20B Instruct at Q4_K_M (12.1 GB, ~31 tok/s (est.)) with room for up to 8K context.
What's the best InternLM 3 size for the AMD Radeon RX 9070 XT?
InternLM 3 20B Instruct at Q4_K_M quantization (12.1 GB), estimated ~31 tokens/sec, up to 8K context.
Every InternLM 3 size on the AMD Radeon RX 9070 XT
| Size | VRAM | Verdict | Speed |
|---|---|---|---|
| InternLM 3 20B Instruct | 12.1 GB | Runs | ~31 tok/s |
| InternLM 3 8B Instruct | 5.3 GB | Runs | ~63 tok/s |
InternLM 3 on Other GPUs
- InternLM 3 on NVIDIA GeForce RTX 5080
- InternLM 3 on NVIDIA GeForce RTX 5070 Ti
- InternLM 3 on NVIDIA GeForce RTX 5060 Ti 16GB
- InternLM 3 on NVIDIA GeForce RTX 4080 Super
- InternLM 3 on NVIDIA GeForce RTX 4080
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VRAM Tier
Troubleshooting
Buying Guide
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