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2TB Samsung 860 EVO 2.5" SATA III Solid State Drive

$230
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Several Retailers has 2TB Samsung 860 EVO 2.5" SATA III Solid State Drive (MZ-76E2T0B/AM) on sale for $229.99. Shipping is free. Thanks Rei
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Editor's Notes & Price Research

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Edited November 18, 2019 at 11:02 AM by
Amazon [amazon.com] lowered the price of the Samsung 860 EVO 2TB 2.5 inch SSD from $299.99 down to $229.99 ($70 savings).

Alternatively these other retailers also lowered the price on it for the holidays:

Newegg [newegg.com] $229.99
B&H [bhphotovideo.com] $229.99
Best Buy [bestbuy.com] $229.99
Adorama [adorama.com] $229.99
Samsung [samsung.com] $229.99

Edit: If you need an external SSD the 2TB Samsung T5 External SSD is also on sale for only $20 higher (which is about what an external enclosure would end up costing you anyway).
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Created 11-18-2019 at 01:22 AM by Rei
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Last Edited by usernamistaken November 18, 2019 at 11:29 PM
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There's very little real-world speed difference between NVMe and SATA SSDs. The problem is storage speeds are measured in MB/s. That's the inverse of how people perceive speed - how many seconds they have to wait for an operation to complete. When you invert MB/s to get sec/MB, you find that the huge jump from 500 MB/s to 2 GB/s is actually a tiny improvement. e.g. Say you need to read 1 GB of data. How long do you need to wait?

125 MB/s HDD = 8 sec
250 MB/s SATA 2 SSD = 4 sec (4 sec improvement from previous)
500 MB/s SATA 3 SSD = 2 sec (2 sec improvement)
1 GB/s 1st gen PCIe SSD = 1 sec (1 sec improvement)
2 GB/s NVMe SSD = 0.5 sec (0.5 sec improvement)

Notice how every time MB/s doubles, the reduction in wait time is only half the reduction from the previous doubling? As MB/s becomes bigger, its benefit becomes smaller. Or put another way, the bigger MB/s is, the less difference it makes.

On top of this, small file speeds are still below the SATA 3 speed limit of 500 MB/s. The 4k speeds on SSDs right now top out at about 150 MB/s write, 70 MB/s read. With about 70 MB/s write and 30 MB/s read being more typical of budget drives (both SATA and NVMe). This has huge implications for wait time.

Say you need to read 1 GB of sequential data, and 200 MB of small file data. Which is faster? A NVMe SSD with 2 GB/s sequential speeds and 35 MB/s 4k speeds? Or a SATA SSD with 500 MB/s sequential speeds and 50 MB/s 4k speeds? Obviously the NVMe SSD, right? You're reading 5x more sequential data where the NVMe SSD is 4x faster. While the SATA SSD is only 1.4x faster at4k speeds. So obviously the NVMe SSD must be faster, right?


NVMe: (1 GB) / (2 GB/sec) + (200 MB) / (35 MB/s) = 0.5 sec + 5.7 sec = 6.2 sec
SATA: (1 GB) / (500 GB/sec) + (200 MB / 50 MB/s) = 2 sec + 4 sec = 6 sec

Surprise! The SATA SSDis faster. It's MB/s being the inverse of wait time messing things up again. The huge GB/s sequential speed actually make a tiny difference (only 1.5 sec faster reading 1 GB of data), while the 4k speeds (35-50 MB/s to read just 200 MB of data) dominate the wait time (4-5.7 sec).

For most people, this means a good SATA SSD will provide better performance than a cheap mediocre NVMe SSD. The better SATA SSDs like the 860 EVO hit 50 MB/s reading and 150 MB/s writing 4k files. While the worse (but still more expensive) NVMe SSDs I've seen only hit 30 MB/s reads and 70 MB/s writes.

tl;dr - If you want a good SSD (and aren't doing video editing), ignore the sequential speeds. Judge the drive primarily on its 4k speeds or IOPS, and buy the cheapest one with the highest 4k speeds or IOPS. If it's a NVMe SSD, great. If it's a SATA SSD, don't be put off by it being "older" technology. The SATA 3 interface is still faster than SSDs at small file read/writes, which is where the bulk of your wait time will be. The SATA 860 EVO is one of the best SSDs you can get in terms of real-world performance per $, beating out many if not most NVMe SSDs.

(The same problem exists with measuring car fuel consumption in MPG, which is actually the inverse of fuel consumption. It means that switching from a old 14 MPG SUV to a newer 20 MPG SUV ("only" a 6 MPG improvement) actually saves more gas per mile than switching from a 25 MPG sedan to a 50 MPG hybrid (a "massive" 25 MPG improvement). The SUV upgrade saves you 2.14 gallons per 100 miles traveled, while the hybrid upgrade saves only 2 gallons per 100 miles. Because the bigger MPG gets, the less difference it makes. The rest of the world measures fuel economy in liters per 100 km to avoid this problem.)
18 Helpful?
Just as an FYI it's $218 through Samsung epp
10 Helpful?
It may get a little lower, but they could also get to a point where they say it's sold out. Lowest price it's ever been on Amazon. Here's a thought... BestBuy has extended returns available thru Jan 14th. Buy it from them, return it if a lower price shows up. Ties up some of your money but if you can handle that it's the best of both worlds.
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11-18-2019 at 05:20 AM
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#5
Which shop do you guys like the most? Adorama, B&H, Newegg, Samsung ?

those are the ones that dont charge taxes for some people.
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#6
Quote from guest2011
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Need 1TB
Cut it in half or look at one of the 25 other ssd deals posted in the last two days?
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11-18-2019 at 05:41 AM
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#8
Quote from Rei
:
Which shop do you guys like the most? Adorama, B&H, Newegg, Samsung ?

those are the ones that dont charge taxes for some people.
B&H don't charge sales tax for me but all the others do
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#9
Anyone know of any Discount codes currently available for any of the retailers with this price reduction?
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Quote from guest2011
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Need 1TB
Black Friday for the 1TB. $110 at Best Buy.
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#11
Quote from oh_dannyboy
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Need to get this down to $200 before I'll pull the trigger. Hopefully there's some BF deals coming up.

LMAOLMAOLMAO $70 off and your still hoping for a bigger discount? check out that Keepa price history graph that I put in the original post it shows the 1 year price history and the 90 day + 180 day price average.

Quote from TVM925
:
B&H don't charge sales tax for me but all the others do

I might get two from B&H too, ive never shopped at Adorama or Samsung's Shop before and I heard that Newegg is starting to charge taxes now. All the other shops charge taxes for me too which is like $16 per drive.
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Last edited by Rei November 18, 2019 at 06:03 AM.
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Quote from oh_dannyboy
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Need to get this down to $200 before I'll pull the trigger. Hopefully there's some BF deals coming up.
It may get a little lower, but they could also get to a point where they say it's sold out. Lowest price it's ever been on Amazon. Here's a thought... BestBuy has extended returns available thru Jan 14th. Buy it from them, return it if a lower price shows up. Ties up some of your money but if you can handle that it's the best of both worlds.
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#13
With a little filler you can stack with the Best Buy $30 off $300 Amex offer if you have it on one of your cards.
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#14
Just as an FYI it's $218 through Samsung epp
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#15
Ugh, I'm torn, buy this now or wait to see if 2tb MX500 goes lower for BF. Even without a sale, the MX500 is still less right now, but it's close enough I'd prob go for the Sammy... Hmmm.....
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