Question, Any idea if chipset SATA ports share bandwidth? or each port can perform at its peak even if all saturated at same time, say connecting 6 SATA SSD's and running speed test at same time. Im talking specifically about Intel and to be more specific Z490 and H470 Basically if i plan to get x6 1Tb SATA SSD's will i get their top speed or should i plan to buy an HBA card?
YES. But how the cpu,OS.....handles the speed is another question -------------------------- The HBA can "relieve" your CPU... -------------------------- Each mobo has its own config such as ..... (must refer to motherboard manual) Note also:Some motherboards will even disable 2 SATA ports if you are using M.2 (i think port 5 and 6) ---------------------------------
I just checked,ran 3 different ssd benchmarks on three different sata ssd's I have in my system simultaneously. came out pretty much the same as when testing one at a time z490 aorus elite mobo
Asmedia and Jmicron are the total capacity of the 1 or 2 lanes, and the controllers are usually 2 port each. Intel does not share bandwidth (total throughput only limited by the DMI/PCI link between PCH and CPU), you can hit max drive throughput for DMA transfers on all ports at once. AMD sata, who knows.
Isn't DMI link is just PCIe Gen 3.0 x4, so it should be enough for 6 SATA SSD's Right now i have the SSDs connected to my 5950x that had no SATA ports [it has just 4 native and 2 usless trough ASSmedia gen 2.0 x1 link], so I had to use HBA card but i had no idea it doesn't pass-trough trim. So i want to free my gaming PC back to gaming and move the SSD work to Intel, i have z490 with 6 sata ports, enough for all the SSD, x2 m.2 for two NVMe, boot drive on x4 adapter card to m.2 and the HBA card for Hard drives.