Lexar NQ790, what's the difference from the Lexar NM790?

[Lpznnn]

I would like to know about the Lexar NQ790, I can't find anything relevant about it. I know it uses the Map1602 as the controller and Longsys... The Lexar NM790 has this same controller and is TLC. Could the NQ790 also be TLC or is it QLC? If anyone could provide information, I would be grateful.

The only image I got of the NQ790 is from a purchase review.

 

[BoggledBeagle]

You mean this info?

Lexar® NQ790 PCIe 4.0 SSD | Lexar

www.lexar.com

It has lower TBW rating than the NM model. (1200 vs 1500)

 

[Lpznnn]

You mean this info?

Lexar® NQ790 PCIe 4.0 SSD | Lexar

www.lexar.com

It has lower TBW rating than the NM model. (1200 vs 1500)

I wanted to know if the NQ790 is TLC or QLC.

 

[BoggledBeagle]

I think you have two indirect pieces of information about it already. The letter Q and lower TBW rating.

 

[Phison]

The difference is mainly in the memory module (NAND). The NQ790 has QLC memory cells (4 bits per cell), while the NM790 uses TLC (3 bits per cell).
In practice, the difference is noticeable when writing large amounts of data to the SSD. With the NM790, the write speed drops to approx. 1500 MB/s while with the NQ790 it drops to approx. 200 MB/s.
You can find a detailed comparison here: https://ssd-tester.com/compare_670_875_Lexar_NM790_1TB_versus_Lexar_NQ790_1TB.html
Also click on "Show test images" below and have a look at the photos of HD Tune Pro.

 

[Wirko]

Of course there's the TPU database too.

Lexar NQ790 2 TB Specs

2 TB, QLC, PCIe 4.0 x4, M.2 2280

www.techpowerup.com

Funny enough, the NQ790 is substantially more expensive than the NM790. Lexar also thinks there's no 4 TB variant, which you can buy on Amazon nevertheless.

 

[VictorTDD]

NM790 is YMTC X3-9070 1Tb TLC, while NQ790 is YMTC X3-9060 512Gb TLC. Yeah, you read that right, both of them are TLC.
However, as some tests have shown, NQ790 is not recommended, because of its underperforming firmware.

 

[Wirko]

NM790 is YMTC X3-9070 1Tb TLC, while NQ790 is YMTC X3-9060 512Gb TLC. Yeah, you read that right, both of them are TLC.
However, as some tests have shown, NQ790 is not recommended, because of its underperforming firmware.

You may be right without TPU database being wrong. SSD manufacturers aren't even expected to always use the same components for their SSDs these days, except in their top models.

@GabrielLP14 More work for you, I'm afraid

 

[GabrielLP14]

NM790 is YMTC X3-9070 1Tb TLC, while NQ790 is YMTC X3-9060 512Gb TLC. Yeah, you read that right, both of them are TLC.
However, as some tests have shown, NQ790 is not recommended, because of its underperforming firmware.

Oh they're using CDT2A (X3-9060)? Interesting, thanks for the feedback. I'll update the DB
Are you 100% sure of that though? Do you have visual proof or reviews?

 

[VictorTDD]

Oh they're using CDT2A (X3-9060)? Interesting, thanks for the feedback. I'll update the DB
Are you 100% sure of that though? Do you have visual proof or reviews?

Exactly speaking, the current version of NQ790 is X3-9060, you can find flashid screenshots (1TB and 2TB) below. BOM changing is quite common for "Retail Client SSDs" nowadays, so Lexar may change its BOM in the future.

 

[GabrielLP14]

Exactly speaking, the current version of NQ790 is X3-9060, you can find flashid screenshots (1TB and 2TB) below. BOM changing is quite common for "Retail Client SSDs" nowadays, so Lexar may change its BOM in the future.


View attachment 355730View attachment 355731

Great to know, thank your for the feedback.
By the way if you need I have some newer information on some 3rd party controller and proprietary controllers that I have confirmed through my friends in the industry who work at these companies. In case you need it, I've messaged you on your PV.

 

[GabrielLP14]

Exactly speaking, the current version of NQ790 is X3-9060, you can find flashid screenshots (1TB and 2TB) below. BOM changing is quite common for "Retail Client SSDs" nowadays, so Lexar may change its BOM in the future.


View attachment 355730View attachment 355731

new info i got it for you:

Controller - Microchip/FlashTech NVMe3108 = 6x Corte Cortex-A53
Controller - Silicon Motion SM2270 = Hepta-Core Cortex-R5 @550MHz (Channels 800 MT/s)
Controller - Silicon Motion SM2267XT = Dual Core Cortex-R5 @650MHz
Controller - Silicon Motion SM2267G = Dual Core Cortex-R5 @650MHz
Controller - Silicon Motion SM2264F = Qual Core Cortex-R8 @700MHz
Controller - Silicon Motion SM2267XT = Dual Core Cortex-R5 @650MHz
Controller - Silicon Motion SM2268XT = Dual Core Cortex-R8 @725MHz
Controller - Phison E26 = I heard a rumor it's 1.2GHz at the main Dual-Core Cortex-R5 and 400MHz~500MHz at the secondary N25F
Controller - Intel "SLNQG" = Intel+Broadcom = Sentinel Rock Plus - Quad Core Cortex-A53 @1.65GHz (16 Channels)
Controller - Intel "SLNBX" = Intel+Broadcom = Sentinel Rock - Quad Core Cortex-A53 @1.65GHz (16 Channels)

 

[Stephen.]

new info i got it for you:

Controller - Microchip/FlashTech NVMe3108 = 6x Corte Cortex-A53
Controller - Silicon Motion SM2267XT = Dual Core Cortex-R5 @650MHz
Controller - Silicon Motion SM2267G = Dual Core Cortex-R5 @650MHz
Controller - Silicon Motion SM2264F = Qual Core Cortex-R8 @700MHz
Controller - Silicon Motion SM2267XT = Dual Core Cortex-R5 @650MHz
Controller - Silicon Motion SM2268XT = Dual Core Cortex-R8 @725MHz
Controller - Phison E26 = I heard a rumor it's 1.2GHz at the main Dual-Core Cortex-R5 and 400MHz~500MHz at the secondary N25F
Controller - Intel "SLNQG" = Intel+Broadcom = Sentinel Rock Plus - Quad Core Cortex-A53 @1.65GHz (16 Channels)
Controller - Intel "SLNBX" = Intel+Broadcom = Sentinel Rock - Quad Core Cortex-A53 @1.65GHz (16 Channels)

Thanks for this info, mmmm I'll definitely ask for more if you'll have..

 

[Wirko]

new info i got it for you:

Controller - Microchip/FlashTech NVMe3108 = 6x Corte Cortex-A53
Controller - Silicon Motion SM2267XT = Dual Core Cortex-R5 @650MHz
Controller - Silicon Motion SM2267G = Dual Core Cortex-R5 @650MHz
Controller - Silicon Motion SM2264F = Qual Core Cortex-R8 @700MHz
Controller - Silicon Motion SM2267XT = Dual Core Cortex-R5 @650MHz
Controller - Silicon Motion SM2268XT = Dual Core Cortex-R8 @725MHz
Controller - Phison E26 = I heard a rumor it's 1.2GHz at the main Dual-Core Cortex-R5 and 400MHz~500MHz at the secondary N25F
Controller - Intel "SLNQG" = Intel+Broadcom = Sentinel Rock Plus - Quad Core Cortex-A53 @1.65GHz (16 Channels)
Controller - Intel "SLNBX" = Intel+Broadcom = Sentinel Rock - Quad Core Cortex-A53 @1.65GHz (16 Channels)

Does this mean that any of these controllers can be found inside the NQ790? Including the E26?

 

[Stephen.]

I would like to know about the Lexar NQ790, I can't find anything relevant about it. I know it uses the Map1602 as the controller and Longsys... The Lexar NM790 has this same controller and is TLC. Could the NQ790 also be TLC or is it QLC? If anyone could provide information, I would be grateful.

The only image I got of the NQ790 is from a purchase review.

@VictorTDD has given a comprehensive response

NM790 is YMTC X3-9070 1Tb TLC, while NQ790 is YMTC X3-9060 512Gb TLC. Yeah, you read that right, both of them are TLC.
However, as some tests have shown, NQ790 is not recommended, because of its underperforming firmware.

 

[GabrielLP14]

Does this mean that any of these controllers can be found inside the NQ790? Including the E26?

No, its just an outside topic and for him to add to his database