picksbycard
October 7, 2026No. 158
Arc B580 ยท 12GB GDDR6

Can the Arc B580 run Qwen2.5-VL 7B Instruct?

Fits comfortably at Q4_K_M.

Qwen2.5-VL 7B Instruct is 8.29B parameters. At Q4_K_M the weights are about 4.6 GiB; with the 1.5 GiB runtime reserve that is 6.1 GiB against the card's 12GB, leaving about 5.9 GiB for context.

All three quants

12GB card
QuantWeightsWith reserveVerdictHeadroom
Q4_K_Mthe everyday quant4.6 GiB6.1 GiBFits comfortably5.9 GiB
Q8_0near-lossless8.2 GiB9.7 GiBFits comfortably2.3 GiB
FP16full weights15.4 GiB16.9 GiBOnly with CPU offloadshort 4.9 GiB

Verdict rules: fits comfortably when weights plus reserve sit within 85% of VRAM; tight when they fit with little left for context; CPU offload when they exceed VRAM by up to 2x (runs, slowly, with layers in system RAM); no beyond that. The KV cache per token depends on the model's architecture and is not modelled here.

The numbers for this pairing

At Q4_K_M the weights take about 4.6 GiB; with the 1.5 GiB we set aside for the runtime that is 6.1 of the card's 12 GB, leaving about 5.9 GB for the context cache.

The highest-quality version that fits entirely in memory is Q8_0.

The cheapest card on our list that runs it comfortably at Q4 is the Arc B570 at about $260, against about $330 for this card.

At about $330, this card costs roughly $27 per GB of VRAM.

Running it at its full 190 W board power for 4 hours a day would use about 23 kWh a month, about $4.20 at the US average residential rate of 18.4 cents per kWh (2026-05); real use sits below that ceiling.

Prices are the lowest current listings our tracker saw on Oct 7, 2026, since averages include premium variants; launch prices are marked where we have no listing.

Good match. Get the card.

The Arc B580 clears Qwen2.5-VL 7B Instruct at Q4_K_M and at Q8_0. Live listings below; this page was rebuilt 2026-10-07.

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About the model

Qwen2.5-VL 7B Instruct by Alibaba Qwen: 32,768-token native context, text + vision, released 2025 under the Apache-2.0. Model card →

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