AMD bere čipset Z490 z več (in hitrejšimi) PCIe voznimi pasovi


AMD is reportedly readying a new high-end motherboard chipset positioned higher than even its upcoming X470 chipset, which makes its market debut on April 19. The new Z490 chipset, as it's called, is emerging to be significantly different from X470, and could finally overcome its biggest limitation - downstream PCIe connectivity. While the X470, like its predecessor, puts out just 8 downstream PCIe lanes, which are PCI-Express gen 2.0 at that, the new Z490 will put out a total of 12 PCI-Express gen 3.0 downstream lanes, which will power additional bandwidth-hungry devices, such as additional M.2 slots, external USB 3.1 controllers, 10 GbE controllers, etc. The Z490 was first leaked through a GIGABYTE Aorus internal presentation.

V trenutni izvedbi ima socket AM4 matične plošče skupno 24 pasov PCI-Express gen 3.0 iz AM4 SoC, poleg 6-8 gen 2.0 pasov iz čipov. Iz tega proračuna za SoC je za PEG (PCI-Express Graphics) dodeljenih 16 voznih pasov, 4 pasovi kot čipset vodila (ki povezujejo SoC z naborom čipov), preostali 4 pasovi pa napajajo eno režo 32 Gbps M.2. Dodatni reži M.2 so bodisi gen 2.0, bodisi iz čipovega nižjega proračunskega pasu, bodisi ločeni od proračuna PEG. Z490 to premaga s koreninskim kompleksom PCIe, ki ni samo 50% širši, ampak tudi dvakrat hitrejši s PCI-Express gen 3.0. Videti je, da je preostanek njegovega nabora enak X470. Ni trenutka, kdaj lahko pričakujemo, da se bo Z490 predstavil.
Source: VideoCardz