Crucial is unveiling the latest addition to its Gen5 consumer NVMe SSD lineup today - the T705 PCIe 5.0 M.2 2280 NVMe SSD. It takes over flagship duties from the Crucial T700 released last year. The company has been putting focus on the high-end consumer SSD segment in the last few quarters. The T700 was one of the first to offer more than 12 GBps read speeds, and the T705 being launched today is one of the first drives available for purchase in the 14+ GBps read speeds category.

The Crucial T705 utilizes the same platform as the T700 from last year - Phison's E26 controller with Micron's B58R 232L 3D TLC NAND. The key difference is the B58R NAND operating at 2400 MT/s in the new T705 (compared to the 2000 MT/s in the T700). Micron's 232L NAND process has now matured enough for the company to put out 2400 MT/s versions with enough margins. Similar to the T700, this drive is targeted towards gamers, content creators, and professional users as well as data-heavy AI use-cases.

The move to 2400 MT/s NAND has allowed Crucial to claim an increase in the performance of the drive in all four corners - up to 20% faster random writes, and 18% higher sequential reads. Additionally, Crucial also claims more bandwidth in a similar power window for the new drive.

The T705 is launching in three capacities - 1TB, 2TB, and 4TB. Both heatsink and non-heatsink versions are available. Crucial is also offering a white heatsink limited edition for the 2TB version. This caters to users with white-themed motherboards that are increasingly gaining market presence.

Phison has been pushing DirectStorage optimizations in its high-end controllers, and it is no surprise that the T705 advertises the use of Phison's 'I/O+ Technology' to appeal to gamers. Given its high-performance nature, it is no surprise that the E26 controller needs to be equipped with DRAM for managing the flash translation layer (FTL). Crucial is using Micron LPDDR4 DRAM (1GB / TB of flash) in the T705 for this purpose.

Crucial T705 Gen5 NVMe SSD Specifications
Capacity 1 TB 2 TB 4 TB
Model Numbers CT1000T705SSD3 (Non-Heatsink)
CT1000T705SSD5 (Heatsink)
CT2000T705SSD3 (Non-Heatsink)
CT2000T705SSD5 (Black Heatsink)
CT2000T705SSD5A (White Heatsink)
CT4000T705SSD3 (Non-Heatsink)
CT4000T705SSD5 (Heatsink)
Controller Phison PS5026-E26
NAND Flash Micron B58R 232L 3D TLC NAND at 2400 MT/s
Form-Factor, Interface Double-Sided M.2-2280, PCIe 5.0 x4, NVMe 2.0
Sequential Read 13600 MB/s 14500 MB/s 14100 MB/s
Sequential Write 10200 MB/s 12700 MB/s 12600 MB/s
Random Read IOPS 1.4 M 1.55 M 1.5 M
Random Write IOPS 1.75 M 1.8 M 1.8 M
SLC Caching Dynamic (up to 11% of user capacity)
TCG Opal Encryption Yes
Warranty 5 years
Write Endurance 600 TBW
0.33 DWPD
1200 TBW
0.33 DWPD
2400 TBW
0.33 DWPD
MSRP $240 (24¢/GB) (Non- Heatsink)
$260 (26¢/GB) (Heatsink)
$400 (20¢/GB) (Non- Heatsink)
$440 (22¢/GB) (Black Heatsink)
$484 (24.2¢/GB) (White Heatsink)
$714 (17.85¢/GB) (Non- Heatsink)
$730 (18.25¢/GB) (Heatsink)

Crucial is confident that the supplied passive heatsink is enough to keep the T705 from heavy throttling under extended use. The firmware throttling kicks in at 81C and protective shutdown at 90C. Flash pricing is not quite as low as it was last year, and the 2400 MT/s flash allows Micron / Crucial to place a premium on the product. At the 4TB capacity point, the drive can be purchased for as low as 18¢/GB, but the traditional 1TB and 2TB ones go for 20 - 26 ¢/GB depending on the heatsink option.

There are a number of Gen5 consumer SSDs slated to appear in the market over the next few months using the same 2400 MT/s B58R 3D TLC NAND and Phison's E26 controller (Sabrent's Rocket 5 is one such drive). The Crucial / Micron vertical integration on the NAND front may offer some advantage for the T705 when it comes to the pricing aspect against such SSDs. That said, the Gen5 consumer SSD market is still in its infancy with only one mass market (Phison E26) controller in the picture. The rise in consumer demand for these high-performance SSDs may coincide with other vendors such as Innogrit (with their IG5666) and Silicon Motion (with their SM2508) gaining traction. Currently, Crucial / Micron (with their Phison partnership) is the only Tier-1 vendor with a high-performance consumer Gen5 SSD portfolio, and the T705 cements their leadership position in the category further.

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  • SanX - Monday, February 26, 2024 - link

    I have several WD Black SN850X and one Sabrient all with peak 7.5GB/s speed. They show that speed only if I use read from them and write to them using my numeric code. Only ones I saw copy file speeds 3GB/ s which eventually dropped to 1.5. All files are very large. Definitely PCIe5 would help to get speeds higher but they don't look like ready for prime time with such overheating. Copy speeds also are far from claimed peak even if in your case you got surprizing numbers. Are Samsung NVMe reliable? I read all these years that it's something always wrong with them (fake rumors?)
  • goatfajitas - Tuesday, February 27, 2024 - link

    Yeah, you arent going to get that speed, but faster is still faster to a point, then you start losing "bang for the buck" . I did notice a decent difference going from a high end PCIe3 SSD to PCIe4 SSD, but not sure the same noticeable difference will show itself on PCIe5 drives.

    Yeah, Samsung SSD are reliable. They make a ton of products some are crap, but their LCD's, memory, flash are all good.
  • AgentAnon - Sunday, May 12, 2024 - link

    Other way around is true. PCIe 4 to PCIe 5 is a bigger jump than PCIe 3 to PCIe 4 in terms of speed (+7GB/s maximum bandwidth as opposed to +3.5GB/s maximum bandwidth). You can even see it with DirectStorage when running it off of a gen 5 SSD RAID 0 array (something Windows 11 recently added support for).
  • AgentAnon - Sunday, May 12, 2024 - link

    With the Phison E26 controller these SSDs are fine with just motherboard heat sinks. They're more than ready for primetime.

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