本帖最后由 animefans_xj 于 2021-11-8 13:42 编辑
这前天晚到今天上午,京东三星红卡促销,512G红卡仅369元(另返800豆),买了一片。
回家测试发现,相较今年618购买的红卡,现在的红卡已更换主控和闪存。
01/外观
外观上两张卡外观一模一样,型号都为MB-MC512H
02/配置
今年早期版本的红卡采用SM2705主控+三星3DV4 64层闪存组合,可用容量相对较小
- Model: Lexar uSD UHS2 RDR
- Fw : 1032
- Size : 488350 MB
- SD Controller: SM2705
- Bank00: 0xec,0x1e,0xd9,0x3f,0x88,0xcb,0xec,0x1e - Samsung 3dv4-64L TLC 16k 512Gb/CE 256Gb/die
- Bank02: 0xec,0x1e,0xd9,0x3f,0x88,0xcb,0xec,0x1e - Samsung 3dv4-64L TLC 16k 512Gb/CE 256Gb/die
- Bank04: 0xec,0x1e,0xd9,0x3f,0x88,0xcb,0xec,0x1e - Samsung 3dv4-64L TLC 16k 512Gb/CE 256Gb/die
- Bank06: 0xec,0x1e,0xd9,0x3f,0x88,0xcb,0xec,0x1e - Samsung 3dv4-64L TLC 16k 512Gb/CE 256Gb/die
- Bank08: 0xec,0x1e,0xd9,0x3f,0x88,0xcb,0xec,0x1e - Samsung 3dv4-64L TLC 16k 512Gb/CE 256Gb/die
- Bank10: 0xec,0x1e,0xd9,0x3f,0x88,0xcb,0xec,0x1e - Samsung 3dv4-64L TLC 16k 512Gb/CE 256Gb/die
- Bank12: 0xec,0x1e,0xd9,0x3f,0x88,0xcb,0xec,0x1e - Samsung 3dv4-64L TLC 16k 512Gb/CE 256Gb/die
- Bank14: 0xec,0x1e,0xd9,0x3f,0x88,0xcb,0xec,0x1e - Samsung 3dv4-64L TLC 16k 512Gb/CE 256Gb/die
复制代码
而现今版本采用SM2706主控+三星3DV5 92层闪存组合,可用容量相对较大
- Model: Lexar uSD UHS2 RDR
- Fw : 1032
- Size : 488954 MB
- SD Controller: SM2706
- Bank00: 0xec,0x1e,0x98,0xbf,0x84,0xcc,0xec,0x1e - Samsung 3dv5-92L TLC 16k 512Gb/CE 512Gb/die
- Bank02: 0xec,0x1e,0x98,0xbf,0x84,0xcc,0xec,0x1e - Samsung 3dv5-92L TLC 16k 512Gb/CE 512Gb/die
- Bank04: 0xec,0x1e,0x98,0xbf,0x84,0xcc,0xec,0x1e - Samsung 3dv5-92L TLC 16k 512Gb/CE 512Gb/die
- Bank06: 0xec,0x1e,0x98,0xbf,0x84,0xcc,0xec,0x1e - Samsung 3dv5-92L TLC 16k 512Gb/CE 512Gb/die
- Bank08: 0xec,0x1e,0x98,0xbf,0x84,0xcc,0xec,0x1e - Samsung 3dv5-92L TLC 16k 512Gb/CE 512Gb/die
- Bank10: 0xec,0x1e,0x98,0xbf,0x84,0xcc,0xec,0x1e - Samsung 3dv5-92L TLC 16k 512Gb/CE 512Gb/die
- Bank12: 0xec,0x1e,0x98,0xbf,0x84,0xcc,0xec,0x1e - Samsung 3dv5-92L TLC 16k 512Gb/CE 512Gb/die
- Bank14: 0xec,0x1e,0x98,0xbf,0x84,0xcc,0xec,0x1e - Samsung 3dv5-92L TLC 16k 512Gb/CE 512Gb/die
复制代码
03/主控解析
主控方面,SM2705与SM2706在性能上并无大的区别,一些宣传写入速度超过90M/S的存储卡采用了DDR200传输模式作为传输的备选模式,但是大多数设备并不支持DDR200,这些存储卡在大多数设备上仍然工作在SDR104甚至是DDR50模式下。不过相较于SM2705,SM2706提升了硬件纠错引擎,纠错方式从可变BCH变为了LDPC,而后者是目前3D TLC对应主控的标准配置。
顺带说一句,前两年贴吧上有个奸商天天在说带勾的红卡是QLC,当时我就想128G能到60M/S以上的速度怎么可能是QLC。现在可以打它脸了吧!
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