Although consumer-grade products can’t compete with enterprise-grade products, it is important to know that PCIe 5.0 x4 can provide 16GB/s theoretical bandwidth and 15.75GB/s actual effective bandwidth.

At the same time, Qunar PS5026-E26 main control supports eight channels of 2400MT/s NAND flash memory, and the nominal read/write speed can reach 13GB/s and 12GB/s.

When the first PCIe 4.0 SSDs came up, they were able to run at around 7GB/s, which is not far from the theoretical bandwidth of PCIe 4.0 x4 8GB/s.

It turns out that the problem lies in the NAND flash memory, the existing 176-layer stacked flash memory, the interface speed stays at 1600MT/s, completely unable to feed the bandwidth of PCIe 5.0 x4, 10GB/s is already their limit speed.

Of course, some manufacturers have previewed upgraded versions but still can only run up to 12GB / s.

The good news is that Micron has announced 232 layers of flash memory, SK Hynix has achieved 238 layers, and China’s Changjiang Storage is also expected to rush to 232 layers, plus 2400MT/s interface speed, they are all perfect partners for PCIe 5.0, but will not start mass production until the end of this year one after another.

Therefore, if you are a high-performance enthusiast and want to experience the extreme speed of PCIe 5.0 SSDs, it is better to wait for a while, and it is estimated that around the middle of next year is the time to get on board.

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Now, an article released by Gigabyte explains the problem, saying that the current E26 master chip can achieve a super-fast read speed of 10 GB/s with 3D-TLC flash memory with a bandwidth of 2400MT/s. In addition, the R&D team continues to verify the new generation of materials and NAND flash memory particles, which further improves the overall performance, and the read speed can reach more than 12 GB/s.

Corsair’s overseas website announced the new MP700 PCIe 5.0 SSD, coming to AMD AM5 platform, with the same speed of up to 10GB / s. This means that the PCIe 5.0 SSD that will be launched next month along with the Rex 7000 processor may be up to 10GB / s.

For reference, initial models of PCIe 4.0 can reach 5GB/s, while current flagship models can reach over 7GB/s, such as Samsung’s new flagship SSD 990 PRO with sequential read speeds of up to 7450 MB/s.

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512GB and 256GB M2 MacBook Air 5GB Tests

The Verge also used Blackmagic’s Disk Speed Test app to test the M2 MacBook Air base model (8GB of RAM and 256GB of storage) with SSD write speeds 15-30% slower than the 512GB model (which Apple sent for review); read speeds were 40-50% slower.

512GB M1 MacBook Air 5GB Test

256GB Intel MacBook Pro 5GB Test

The results aren’t surprising, as the base M2 MacBook Air features a single NAND chip, while the M1 model and 512GB M2 model both have two NAND chips, doubling performance.

Dan Seifert, the editor of The Verge, then took a closer look at the M2 MacBook Air and found that the slower SSD speeds affected a range of everyday tasks, including file transfers, and that using the SSD as temporary memory (Swap memory) also reduced overall performance.

The post Basic M2 MacBook Air hands-on test: SSD reads 40-50% slower appeared first on TechGoing.

The Steam Deck team has conducted extensive testing on both sizes of SSDs and determined that there is no impact on game performance.”

“SSD performance is currently determined by factors unrelated to PCIe bandwidth. In extremely uncommon cases, differences in read/write speed caps may have a small impact on file transfer speeds, but OS performance, load times, game performance and game responsiveness are the same between the X2 and X4 SSDs.”

Valve’s new strategy to improve productivity seems to be working, as last week Valve announced that it will significantly ramp up shipments of the Steam Deck. Buying components from different suppliers will also speed up the shipment of the Steam Deck.

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