Intel 800 Series Chipsets without H870-PCH: Detailed table showing (final) specifications.

User X (formerly Twitter) Jaken Intel wants to get the final technical specifications of the Intel 800 series chipsets, and according to its own statement, it assumes that nothing will change in this data before the official launch of the Intel Arrow Lake S platform, including the new LGA1851 socket and new motherboards. In addition to the Z890-PCH, according to its detailed schedule, there will be five more chipsets: W880, Q870, B860 and H810.

If you want to overclock with the Core Ultra 5 245K, Core Ultra 7 265K or even the Core Ultra 9 285K, you should definitely use the Z890 motherboard, because only with this chipset the BCLK is decoupled and the open multiplier in the three K processors mentioned can be adjusted upwards. Minor changes in this area. In a previous leak, it was announced that the Z890 chipset will no longer provide self-sufficient PCIe 3.0 lanes and Jaykihn's table now confirms this. Instead of 20 PCIe 4.0 lanes, there are now 24 lanes and the eight PCIe 3.0 lanes have been eliminated. Together with the LGA1851 processor, a total of 28 PCIe 4.0 lanes and 20 PCIe 5.0 lanes are available for the LGA1851 platform.

As a surprise innovation, the table also mentions up to two Thunderbolt 4 or USB4 (40Gb/s) ports, which can be provided by the LGA1851 processor itself. There are also up to five USB 3.2 Gen2x2 (20Gb/s) ports, ten USB 3.2 Gen2 (10Gb/s) and USB 3.2 Gen1 (5Gb/s) ports, as well as 14 USB 2.0 ports. Intel's W880-PCH is based on the same features as the Z890 chipset, but the CPU OC area is blocked and RAM overclocking remains, just like the B860-PCH. The W880 chipset should receive official ECC support, of course assuming corresponding DDR5 UDIMM ECC modules.

The PCIe 5.0 lane configuration, based on the table, is also interesting. The following modes are available with the Z890, W880, and Q870 chipsets: x16/x4, x8/x8/x4, or x8/x4/x4/x4. In the PCIe branching area, Intel offers significantly more flexible modes, as was the case with the LGA1700 platform. However, it is also unusual not to mention the H870-PCH. As expected, the specifications of the two smaller chipsets in the form of the B860 and H810 are lower and Intel has tightened the restrictions in several areas. As usual, Intel leaves the smallest chipset with a maximum of 1 DPC (DIMM per channel), so that in combination with 64GB modules there is a maximum of 128GB of RAM, while with three larger PCH modules there is up to 256GB of RAM (2 DPC) inside.

To the tweet

If these technical characteristics of the Intel 800 series chipsets are the same, then they are basically a good and modern basis, even if the H870 chipset is (still) missing. In any case, not only new processors are expected in the fall, but also several new motherboards.