Silicon power A55 vs S55 difference?

[berniehernandez800]

I cant find a difference between the 2 ssd. The only thing I can see is that the A55 holds a bit more gb for a small increase in price. If anyone can tell me which one is better it'll be greatly appreciated.

A55: https://www.amazon.com/gp/aw/d/B075RJS55D/ref=psdcmw_1292116011_rv_t1_B01M61OWRI

S55:
https://www.amazon.com/Silicon-Power-240GB-Internal-SP240GBSS3S55S25AC/dp/B06XRD1R9T

 

[Aeacus]

Specs,
S55: https://www.silicon-power.com/web/product-1
A55: https://www.silicon-power.com/web/product-Ace_A55

And yes, the only diff between the two you linked is that A55 is 240GB while S55 is 256GB.

I'd go with 256GB one since you'll get a bit more space (16GB) with it.

 

[fry178]

@Aeacus
?
glad you took the time to read the info

1.the A55 is 256GB

https://smile.amazon.com/dp/B075RJS55D/?coliid=I1D8YTGL86ZXCR&colid=2DSDNRT3KLLAR&ref_=lv_ov_lig_dp_it&th=1

2.S55 is the same drive but slim (S xx)

 

[Aeacus]

@Aeacus
?
glad you took the time to read the info

1.the A55 is 256GB

https://smile.amazon.com/dp/B075RJS55D/?coliid=I1D8YTGL86ZXCR&colid=2DSDNRT3KLLAR&ref_=lv_ov_lig_dp_it&th=1

2.S55 is the same drive but slim (S xx)

I see that i made a typo in my reply where i stated A55 having capacity of 240GB while in fact it has 256GB of capacity. My bad.

Still, my above statement stays true where i say that: A55 and S55 are different drives since only the capacity is different. S55 has capacity of 240GB while A55 has capacity of 256GB. Everything else are same between the two drives.

Also, the "S" in S55 doesn't stand for "slim" since both drives have the same dimensions: 100.0mm x 69.9mm x 7.0mm. Your 2nd statement would only stand true if A55 would have thickness of 9.5mm (older 2.5" SSDs) which it hasn't.

 

[fry178]

thats what i thought

my fault, just went with info from silicon power (they list it at SLIM), not looking at the actual size..

https://www.bilder-hochladen.net/i/m47g-2-f072.jpg

 

[bgrt]

The A55 uses explicityly 3D TLC NAND while the S55 only specifies TLC, which usually means it's 2D TLC. However another review site opened up the S55 and found 3D TLC inside. If that's the case then it probably only differs by the manufacturer of the NAND and controller.

 

[fry178]

still a crappy drive compared to lets say crucial/ocz/corsair/samsung.
got a 256 A55, and performance is worse than any 30/60/120gb drive i had, incl the S60 (60gb).
already low read and writes drop further after only 2-3 GB, when other brands with same setup can do around 10-30GB before
dropping in speed.

if its "free" or nothing else you can get, sure.
otherwise take a different drive from above mentioned brands.

 

[Aeacus]

If you want good performance then Samsung 850 Evo is great SSD to go for (got 500GB drive in my Haswell build).
If you want even better performance while you have M.2 slot on your MoBo then M.2 NVMe SSD is for you, like Samsung 960 Evo (got 500GB drive in my Skylake build).
But if you don't have much money and like to get best price to performance ratio then nothing beats Crucial MX500 series (also got it in my Skylake build with a drive size of 1TB),
MX500, pcpp: https://pcpartpicker.com/products/compare/h3tQzy,4mkj4D,ft8j4D,nF8j4D/
850 Evo, pcpp: https://pcpartpicker.com/products/compare/FrH48d,3kL7YJ,9Q7CmG/
960 Evo, pcpp: https://pcpartpicker.com/products/compare/ZNBrxr,Ykbkcf,4cyxFT/

 

[fry178]

best part that the MX500 has, or vector 150/180, is its backup power (internal), so even if power goes out/you dont have a ups,
prevents corruption of data.

for the samsungs i would get the 860/970 instead. never, and usually cheaper as well.

 

[Aeacus]

for the samsungs i would get the 860/970 instead. never, and usually cheaper as well.

While 860 Evo is newer and usually cheaper than 850 Evo, it also has slightly lower performance,
comparison: http://ssd.userbenchmark.com/Compare/Samsung-850-Evo-500GB-vs-Samsung-860-Evo-500GB/3477vsm428560
Even MX500 has slightly better performance than 860 Evo while costing the same,
comparison: http://ssd.userbenchmark.com/Compare/Crucial-MX500-500GB-vs-Samsung-860-Evo-500GB/m418385vsm428560
pcpp: https://pcpartpicker.com/products/compare/FrH48d,ft8j4D,6yKcCJ/

As far as 960 Evo goes, at the time of my purchase, 970 Evo wasn't released yet. My choice was between 960 Evo (retail drive) and SM961 (OEM drive). Picked the retail drive for better compatibility.

If all you care is speed then fastest NVMe drive is Intel 900P Optane but it's PCI-E drive. For fastest M.2 NVMe drive, you're looking towards Samsung 970 Pro,
comparison: http://ssd.userbenchmark.com/Compare/Intel-900P-Optane-NVMe-PCIe-480GB-vs-Samsung-970-Pro-NVMe-PCIe-M2-512GB/m375784vsm498971

 

[fry178]

not only, but most ppl still have to shell out the money, so having something not just 10$ cheaper, while performance (in real world desktop environment)
is the same, i would go for price..


sure at the time "you" bought it, but when a newer/faster drive is already out (nvme) i would at least include it,
even you might not gotten one.

another thing: smart info is pretty limited on those SP drives.
roughly half to a third of what others offer, incl important stuff like amount of writes (drive/nand)