Users of the new Intel Core Ultra 200S (Arrow Lake) processors are confronted with an unexpected SSD speed limit. It turned out, when the PCIE 5.0 discs are connected to M.2 slots to the Z890 mother boards, their performance drops by 16% -to 12 GB/s instead of the declared 14 GB/s. The problem does not affect the SSD installed by expansion, for example ASUS HYPER M.2.
Testing with the participation of the Samsung Pro and Micron 4600 showed: On the Z890 platform with the Arrow Lake processor, both discs showed up to 12.3 GB/s. At the same time, the old system with the chipset Z790 (Raptor Lake) achieved the same SSD 14.3 GB/s. Experts from the SSD review have shown that the problem is related to the characteristic of the architecture of the new CPU.
Four PCIE 5.0 lines for M.2 slots in Arrow Lake are not directly connected to the computer core (SOC), but via the I/O -Extender module. This increases delays and reduces the transit. Intel confirmed that the difference in speed depends on the load and the specific SSD, but it is impossible to repair it programmatically – requires a change in the hardware.
Arrow Lake was previously criticized for the delay in games from the previous generation Raptor Lake, which could not be completely eliminated, even after the firmware updates. The current situation with SSD adds questions to the Intel transition to Chiplet architecture. Until now, users who are important with the maximum speed of disks are recommended to use PCIE adapters or previous generations.
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Source: VG Times

Gregory Robert is a sports aficionado and a writer for “Social Bites”. He provides in-depth coverage of the latest sporting events and trends, offering a unique and knowledgeable perspective on the world of sports.