(Image credit: Tom's Hardware) (Image credit: Tom's Hardware) The 2TB Corsair MP700 Pro XT is a single-sided drive, which is definitely something we like to see. Some of the drives in this segment, like the Adata XPG Mars 980 Blade, are double-sided, which can complicate drive fit in some systems and make them more difficult to cool. It looks like the 4TB version of the MP700 Pro XT is also single-sided, given that it has the same dimensions as the 1TB and 2TB. Given the power numbers from Corsair, we think this drive will work without a heatsink and should be fine in a laptop, so this single-sided form factor is great.
Speaking of power numbers, the label indicates a 3.3V, 2.4A power rating. This ballparks a peak around 8W, but the drive is rated for 6.5W active draw at 4TB, and the top power state is also 6.5W. This suggests Phison has managed to make an even more efficient controller than SMI’s SM2508, which is quite the accomplishment. It’s certainly an improvement over its older E26, which will make some readers happy.
(Image credit: Tom's Hardware) (Image credit: Tom's Hardware) (Image credit: Tom's Hardware) The MP700 Pro XT has an SSD controller, a single package of DRAM, and two NAND flash packages. Also on the board are Phison’s power management chips. This arrangement is the same as that on the Phison E28 ES, which we previously previewed, and it certainly contributes to its high power efficiency. Other configurations include discrete and on-ASIC power management, and all three arrangements have their pros and cons. The solution used here does take up some PCB space and may add cost to the drive, but there’s no arguing with the results, especially as this is a single-sided drive.
More details on the controller are available in our original preview. The pertinent details are that this is an eight-channel solution that can use newer ONFi/Toggle 5.2, or 3,600 MT/s, flash. Technically, this controller is rated for up to 4,200 MT/s in a four-channel configuration – previously, the Kioxia Exceria used the four-channel E12C variant of the E12/E12S for extra power efficiency – and up to 3,200 MT/s for the full eight channels. This is plenty of bandwidth to saturate the PCIe 5.0 connection. It can also use its choice of DRAM with the MP700 Pro XT, relying on SK hynix LPDDR4X, which is an efficient way to go.
The flash on hand is Kioxia – the “T” in the code points to its Toshiba origin – with 8Tb or 1TB packages using 218-layer TLC. This flash has proven to be excellent in our testing, with the best random read performance on record. The SanDisk WD Black SN8100 is a good example of what this flash can do. We’ve pointed to the agile, four-plane design as one factor for this performance, although it is the architecture as a whole – with sub-planes for responsiveness – that gives it a unique leg up over Micron’s 276-Layer flash on the Crucial T710 . The MP700 Pro XT can also deliver maximum bandwidth thanks to optimizations for the E28 controller.
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Key considerations
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Reference reading
- https://www.tomshardware.com/pc-components/ssds/SPONSORED_LINK_URL
- https://www.tomshardware.com/pc-components/ssds/corsair-mp700-pro-xt-2tb-ssd-review#main
- https://www.tomshardware.com
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