Superfast 4TB SSD Is Just 9 Cents Per GB: Real Deals

Real Deals
(Image credit: Future)

The larger capacity M.2 SSD drives of 4TB and up always start off being priced in the extreme, like the WD Black SN850X 4TB SSD that launched with a price tag of $699 - giving it a $0.17/GB value. That initial price is hard to swallow, especially when it always looks visibly cheaper to buy multiple smaller drives to make up the same capacity. This is predominantly true with the only major caveat being the amount of available M.2 slots on your motherboard and the performance of those slots.  

Right now, you can pick up the WD Black SN850X 4TB for $379 on Newegg, which brings that cents per gigabyte rating down to $0.09/GB. It's still costly, and more expensive than two separate smaller WD SN850X 2TB drives, but you're paying the extra money for having all the capacity of 4TB in one piece of hardware.

WD Black SN850X 4TB M.2 SSD: now $379 at Newegg

WD Black SN850X 4TB M.2 SSD: now $379 at Newegg
This drive has a massive 4TB of capacity and blazing fast 7,300MB/s read and 6,600MBps write speeds combined with a high endurance TBW of 2400TB. You also get a 5-year warranty. 

Take a look at our results for 3DMark Storage Benchmark and DiskBench testing.

Trace Testing - 3DMark Storage Benchmark

Transfer Rates – DiskBench

This drive is not only one of the fastest SSDs for PCs, but it is also the best SSD for the PS5, too.

We reviewed the WD Black SN850X and were suitably impressed with its excellent performance. Our test results show it ranking almost top in 3DMark tests for gaming performance and also very high in the charts for Transfer Rates using Diskbench. The main negative at the time of review was the price which thankfully has dropped to a much more acceptable level today.

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Stewart Bendle
Deals Writer

Stewart Bendle is a deals and coupon writer at Tom's Hardware. A firm believer in “Bang for the buck” Stewart likes to research the best prices and coupon codes for hardware and build PCs that have a great price for performance ratio.

  • BlahBlahBlahWowza
    Please update this story. When anyone clicks on the link, it takes you to Newegg yes but the price is actually $399.99 USD, and does not include heatsink.
    Reply
  • chalabam
    Is time to benchmark one large M.2 SSD against 2 half size in RAID 0
    Reply
  • USAFRet
    chalabam said:
    Is time to benchmark one large M.2 SSD against 2 half size in RAID 0
    Please elaborate why RAID 0 + SSD is a good thing.
    Details, please....not just "twice as fast".

    Actual user facing performance.
    Reply
  • Amdlova
    Raid 0 on these ssd with desktop cpu will be a disaster. People do raid 0 with nvme ssd when have a 32 core cpu and need tons of data to process. Editing a 8k footage from a Red camera
    Last time i have worked with a red 4k. Lost a day just to take off the data. 3 days to get work done because the storage sucks.
    Reply
  • chalabam
    USAFRet said:
    Please elaborate why RAID 0 + SSD is a good thing.
    That's easy, if you look at the benchmarks you can see that... oh, wait, we need the benchmarks first.
    Amdlova said:
    Raid 0 on these ssd with desktop cpu will be a disaster.
    That's just an opinion. It needs actual benchmarks to know instead of suspecting.

    You can be wrong, or right, but on any case, we need the benchmarks to know how much wrong or right you are.

    And no, you cannot point at older benchmarks with older hardware.
    Reply
  • kyzarvs
    chalabam said:
    Is time to benchmark one large M.2 SSD against 2 half size in RAID 0
    RAID 0 (striping) means increasing the chance of failure for each drive you add. 2x drives have double the chance of a failure of one, 3 drives have triple chance etc. Striping only needs one failure to fubar the whole partition.

    I mean back in the day I had XP on 2x 10k rpm raptors - that was bonkers quick to boot. Not sure I'd notice RAID0 these days on an O/S drive.
    Reply
  • Amdlova
    I want to do raid 0 with intel optane dimm 512gb :) how dumb can be. 2000 us dollar in hardware to show raid 0 can't be good.
    Reply
  • USAFRet
    chalabam said:
    That's easy, if you look at the benchmarks you can see that... oh, wait, we need the benchmarks first.

    That's just an opinion. It needs actual benchmarks to know instead of suspecting.

    You can be wrong, or right, but on any case, we need the benchmarks to know how much wrong or right you are.

    And no, you cannot point at older benchmarks with older hardware.
    I don't know about you, but I use my system for doing things, not looking at artificial benchmark numbers.

    Even in the earliest tests of SSD + RAID 0, the benchmark numbers were huge.
    The actual user facing benefit, not so much.

    Can you point us to any independent test whereby SSD (of any make/model/size) + RAID 0 brings an actual benefit to typical user use cases.

    NOTE: This is NOT counting server farms or big database servers. And again, not simple benchmark numbers.
    Reply
  • jkflipflop98
    That's what he's saying. Unless you can produce some numbers you know as much as anyone else. . . squat.
    Reply
  • USAFRet
    jkflipflop98 said:
    That's what he's saying. Unless you can produce some numbers you know as much as anyone else. . . squat.
    "he" who?
    "you" who?

    To whom are you referring?
    Reply