Intel Arc A770 16GB vs Intel Arc B580

For running models locally, priced in India. At 8k context the first runs 14 models fully in memory, the second 13.

In short

The Intel Arc A770 16GB has more memory for models: 16 GB against 12 GB. At 8k context the Intel Arc A770 16GB runs 14 of the models we track fully in memory and the Intel Arc B580 13; only the Intel Arc A770 16GB holds gpt-oss 20B. On the models both run fully in memory, the Intel Arc A770 16GB is about 1.2× as fast as the Intel Arc B580 (estimated, median across models).

Updated . Speeds are estimates; how they are worked out.

Specifications

SpecIntel Arc A770 16GBIntel Arc B580
GPUArc A770 16GBArc B580
Memory16 GB GDDR612 GB GDDR6
Memory bus256-bit192-bit
Memory bandwidth560 GB/s456 GB/s
FP16 compute131 TFLOPS116.5 TFLOPS
SoftwareSYCL / oneAPISYCL / oneAPI
Board power225 W190 W
PCIe generationGen 4Gen 4
PCIe lanesx16x8

What each runs

Estimated decode speed with the most precise quant that fits each one est.

ModelIntel Arc A770 16GBIntel Arc B580
gpt-oss 20B59tok/sMXFP4offload
Gemma 4 12B21tok/sQ8_022tok/sQ6_K
Qwen 3.5 9B28tok/sQ8_023tok/sQ8_0
Ministral 3 14B23tok/sQ6_K21tok/sQ5_K_M
Qwen3 14B21tok/sQ6_K22tok/sQ4_K_M
DeepSeek R1 0528 Qwen3 8B28tok/sQ8_023tok/sQ8_0
Qwen3 8B28tok/sQ8_023tok/sQ8_0
Phi-4 14B20tok/sQ6_K22tok/sQ4_K_M
Qwen 3.5 4B58tok/sQ8_048tok/sQ8_0
Ministral 3 8B28tok/sQ8_022tok/sQ8_0
Granite 4.2 8B26tok/sQ8_021tok/sQ8_0
Gemma 4 E4B33tok/sQ8_027tok/sQ8_0
LFM2.5 8B-A1B105tok/sQ8_086tok/sQ8_0
Llama 3.1 8B37tok/sQ6_K30tok/sQ6_K
Qwen 3.8 27Boffloadoffload
Qwen 3.5 122B-A10Boffloadwon't run
Qwen 3.6 27Boffloadoffload
Gemma 4 31Boffloadoffload
Mistral Small 4 119Boffloadwon't run
Qwen 3.6 35B-A3Boffloadoffload
Qwen 3.5 27Boffloadoffload
Gemma 4 26B-A4Boffloadoffload
Qwen 3.5 35B-A3Boffloadoffload
GLM 4.7 Flashoffloadoffload
Devstral Small 2 24Boffloadoffload
Nemotron 3.5 Lightning 30B-A3Boffloadoffload
Qwen3 Coder 30B-A3Boffloadoffload
Kimi Linear 48B-A3Boffloadoffload
Qwen3 32Boffloadoffload
Mistral Small 3.2 24Boffloadoffload
Gemma 3 27Boffloadoffload
DeepSeek R1 Distill Qwen 32Boffloadoffload
DeepSeek V4 Flashwon't runwon't run
GLM 5.3 Flashwon't runwon't run
Qwen 3.8 Flash Nextwon't runwon't run
MiniMax M2.7won't runwon't run
Nemotron 3 Super 120B-A12Bwon't runwon't run
Qwen3 Coder Nextwon't runwon't run
gpt-oss 120Bwon't runwon't run
GLM 4.5 Airwon't runwon't run
Qwen3 Next 80B-A3Bwon't runwon't run
Llama 3.3 70Bwon't runwon't run

Questions

Which is better for local AI, the Intel Arc A770 16GB or the Intel Arc B580?
Choose the Intel Arc A770 16GB to run bigger models. Choose the Intel Arc A770 16GB for speed.
Which can run bigger models, the Intel Arc A770 16GB or the Intel Arc B580?
At 8k context the Intel Arc A770 16GB runs 14 of the models we track fully in memory and the Intel Arc B580 13; only the Intel Arc A770 16GB holds gpt-oss 20B.
Which is faster for local AI, the Intel Arc A770 16GB or the Intel Arc B580?
On the models both run fully in memory, the Intel Arc A770 16GB is about 1.2× as fast as the Intel Arc B580 (estimated, median across models).

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