This week Silicon Motion Technology Corporation announced its new portfolio of PCIe 4.0 NVMe 1.4 controller solutions. The controllers will be aimed at performance, mainstream and value SSD applications and consist of SM2264 for performance, SM2267 for mainstream and SM2267XT for value DRAM-less client SSDs. The higher performance controller comes with speed claims of 7.4GB/s read and 6.8GB/s write.
This week Silicon Motion Technology Corporation announced its new portfolio of PCIe 4.0 NVMe 1.4 controller solutions. The controllers will be aimed at performance, mainstream and value SSD applications and consist of SM2264 for performance, SM2267 for mainstream and SM2267XT for value DRAM-less client SSDs. The higher performance controller comes with speed claims of 7.4GB/s read and 6.8GB/s write.
PCIe 4.0 promises even faster speeds for NVMe storage and we’ve already seen it in our lab. Silicon Motion’s new controller family is states as being designed from the ground up with PCIe Gen4 technology and innovative hardware features especially optimized for true Gen4 performance at low power consumption, advanced error correction as well as data path and EMI protections. While they didn’t give us names, Silicon Motion stated that ten of the leading NAND makers and SSD OEMs use their Gen 4 controllers with both 3D TLC and QLC NAND.
The SM2264 is the performance-oriented controller. This controller features a quad-core ARM R8 CPU with four lanes of 16Gb/s PCIe data flow and supports eight NAND channels with up to 1,600 MT/s per channel. The controller is based on 12nm process technology and is the one to hit the above quoted speeds as well as 1 million IOPS. The quad-core ARM R8 CPU is said to offer high multithreaded performance to handle mixed workload operations required by emerging storage applications. Aside from high performance storage, the SM2264 is ideal for automotive storage with built-in SR-IOV capabilities.
For the mainstream and value customers, Silicon Motion also has the SM2267 Gen 4×4 Lanes, 4 NAND Channel and SM2267XT Gen4x4 Lanes, 4 NAND Channels, DRAM-less. Both of the controllers feature four 16Gb/s lanes of PCIe and four NAND channels with up to 1,200 MT/s per channel, delivering an impressive 3,900/3,500 MB/s sequential read/write performance.
Key Specs:
| SM2267XT | SM2267 | SM2264 | |
| Host Interface | PCIe Gen4 x4 | PCIe Gen4 x4 | PCIe Gen4 x4 |
| PCIe Protocol | NVMe 1.4 | NVMe 1.4 | NVMe 1.4 |
| NAND Flash Channel | 4 | 4 | 8 |
| CE/Channel | 4 | 8 | 8 |
| DRAM | No DRAM | Yes | Yes |
| Max. Performance | |||
| Seq. Read | 3,900 MB/s | 3,900 MB/s | 7,400 MB/s |
| Seq. Write | 3,500 MB/s | 3,500 MB/s | 6,800 MB/s |
| Random Read | 500K IOPS (HMB) 200K IOPS (no HMB) |
500K IOPS | 1,000K IOPS |
| Random Write | 500K IOPS | 500K IOPS | 1,000K IOPS |
Availability
The SM2264 is currently sampling to leading customers. The SM2267 and SM2267XT have entered volume production.
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