Can I Run InternLM 3 on Intel Arc B580?
Written by Jakub Rusinowski · Last updated July 12, 2026
Yes, comfortably — InternLM 3 8B Instruct at Q4_K_M needs 6.5 GB at 8K context (5.3 GB weights + 1.2 GB KV cache/overhead), leaving ~5.5 GB of the Intel Arc B580's 12 GB, at ~41 tok/s (est.), with room for up to 32K context.
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Intel Arc B580 Specs
| VRAM | 12 GB |
| Memory Bandwidth | 456 GB/s |
InternLM 3 8B Instruct on the Intel Arc B580: VRAM by quantization
| Quant | VRAM needed | Fits 12 GB? | Max context | Whole PC |
|---|---|---|---|---|
| F16 | 18.8 GB | ✗ No | — | — |
| Q8_0 | 10.6 GB | ✓ Yes | 32K | — |
| Q6_K | 8.4 GB | ✓ Yes | 32K | — |
| Q5_K_M | 7.4 GB | ✓ Yes | 32K | — |
| Q4_K_M | 6.5 GB | ✓ Yes | 32K | — |
| Q3_K_M | 5 GB | ✓ Yes | 32K | — |
| Q2_K | 4.1 GB | ✓ Yes | 32K | — |
Assumes an 8K-token context with an f16 KV cache. A longer window needs more; a quantized KV cache needs less. “Max context” is the largest window that still fits in 12 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 Intel Arc B580: 8K 6.5 GB · 32K 7.7 GB. Every window this model publishes still fits 12 GB.
No compatible GPU? InternLM 3 8B Instruct on 8 GB of system RAM, CPU only: runs.
InternLM 3 Sizes That Fit the Intel Arc B580 (at 8K context)
| InternLM 3 8B Instruct | Q4_K_M · 6.5 GB at 8K context · ~41 tok/s (est.) |
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FAQ
Is the Intel Arc B580 enough to run InternLM 3 locally?
Yes, comfortably — InternLM 3 8B Instruct at Q4_K_M needs 6.5 GB at 8K context (5.3 GB weights + 1.2 GB KV cache/overhead), leaving ~5.5 GB of the Intel Arc B580's 12 GB, at ~41 tok/s (est.), with room for up to 32K context.
What's the best InternLM 3 size for the Intel Arc B580?
InternLM 3 8B Instruct at Q4_K_M quantization needs 6.5 GB at 8K context (5.3 GB weights + 1.2 GB KV cache/overhead), estimated ~41 tokens/sec, up to 32K context.
Every InternLM 3 size on the Intel Arc B580
| Size | VRAM at 8K | Verdict | Speed |
|---|---|---|---|
| InternLM 3 20B Instruct | 14.5 GB | Runs at Q3_K_M | — |
| InternLM 3 8B Instruct | 6.5 GB | Runs | ~41 tok/s |
InternLM 3 on Other GPUs
- InternLM 3 on NVIDIA GeForce RTX 5070
- InternLM 3 on NVIDIA GeForce RTX 4070 Ti
- InternLM 3 on NVIDIA GeForce RTX 4070 Super
- InternLM 3 on NVIDIA GeForce RTX 4070
- InternLM 3 on NVIDIA GeForce RTX 3060 (12GB)
Popular Models on the Intel Arc B580
VRAM Tier
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