Feed: AnandTech
Feed Link: https://www.anandtech.com
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Title: Silicon Motion SM2508 PCIe 5.0 x4 NVMe SSD Controller Set for Mass
Production

Date: Wed, 07 Aug 2024 17:00:00 EDT
Link: https://www.anandtech.com/show/21509/silicon-...

Silicon Motion has been teasing their SM2508 client SSD controller for more
than a year now at various trade shows. The controller is finally set for
mass production, just in time as the mainstream segment of the Gen 5 SSD
market is poised to take off. Silicon Motion expects SSDs based on the SM2508
to be available for purchase by the end of the year.

At FMS 2024, the company was reusing the same information cards seen at
Computex in June. The specifications of the SM2508 from our Computex coverage
are reproduced here.

Silicon Motion NVMe Client SSD Controller Comparison SM2508 SM2264 SM2268XT2
SM2269XT Market Segment High-End Mainstream Manufacturing Process 6nm 12nm
12nm 12nm CPU Cores 4x Cortex R8 4x Cortex R8 2x Cortex R8 2x Cortex R8 Error
Correction 4K+ LDPC 4K LDPC 4K+ LDPC 4K LDPC DRAM DDR4, LPDDR4X DDR4, LPDDR4X
No No Host Interface PCIe 5.0 x4 PCIe 4.0 x4 PCIe 4.0 x4 PCIe 4.0 x4 NVMe
Version NVMe 2.0 NVMe 1.4 NVMe 2.0 NVMe 1.4 NAND Channels, Interface Speed 8
ch,
3600 MT/s 8 ch,
1600 MT/s 4 ch,
3600 MT/s 4 ch,
1600 MT/s Sequential Read 14.5 GB/s 7.5 GB/s 7.4 GB/s 5.1 GB/s Sequential
Write 14 GB/s 7 GB/s 6.7 GB/s 4.8 GB/s 4KB Random Read IOPS 2500k 1300k 1200k
900k 4KB Random Write IOPS 2500k 1200k 1200k 900k

Current Gen 5 SSDs in the consumer client market are currently all based on
Phison's E26 controller. The appearance of newer platform solutions for SSD
vendors is bound to be good from both an end-user pricing and adoption
perspective.

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