Does the B660 use DDR4 or DDR5?

B660 boards exist in both DDR4 and DDR5 versions — the chipset supports either, so check the specific board model before buying memory.

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Yes — these are compatible

Does 16GB DDR5 (1x16GB) work with the B660?

Yes — compatible: 16GB DDR5 (1x16GB) with B660. B660 boards ship in DDR4 and DDR5 variants — make sure your specific board is a DDR5 model. Live eBay prices.

✓ Memory compatible

How they line up

Spec

B660

16GB DDR5 (1x16GB)

Socket

LGA1700

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Memory

DDR4 or DDR5 (board variant)

DDR5

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16GB DDR5 (1x16GB)

B660

Common questions

B660 boards ship in DDR4 and DDR5 variants — make sure your specific board is a DDR5 model.