Intel has seen how all the specifications of its chipsets for Alder Lake motherboards have been leaked. The Intel Z690 We already knew it, but it will be in January when we see cheaper motherboards based on Intel chipsets H670, Intel B660 and Intel H610, being the surprise that all of them will be compatible with RAM DDR5 and DDR4, in addition to the interfaces PCI-Express 5.0 (something linked to the CPU itself), so it will depend on the motherboard manufacturer itself to offer the configuration that it deems most convenient for users who are looking for these platforms for a more competitive price.

Secondly, except for Intel H610 motherboards, the rest of the chipsets will allow overclock RAM. The rest of the differences are in the rest of the lines such as PCIe 4.0 or PCIe 3.0, the number and type of USB ports or SATA III ports.

Chipset Z690 H670 B660 H610
Memory DDR5 / DDR4 DDR5 / DDR4 DDR5 / DDR4 DDR5 / DDR4
OC and CPU Yes No No No
OC in Mem Yes Yes Yes No
PCIe 5.0 1×16 / 2×8 1×16 / 2×8 1×16 1×16
PCIe 4.0 1×4 1×4 1×4
DMI 4.0 lines 8 8 4 4
PCIe 4.0 12 12 6 0
PCIe 3.0 16 12 8 8
USB 3 (20 Gbps) 4 2 2 0
USB 3 (10 Gbps) 10 4 4 2
USB 3 (5 Gbps) 10 8 6 4
USB 2.0 14 14 12 10
SATA III 8 8 4 4