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Samsung 950 pro 512 GB vs Intel 750 400 GB

post #1 of 71
Thread Starter 
Which is faster ?
http://www.samsung.c...ifications.html
http://ark.intel.com...Ie-3_0-20nm-MLC

samsung read and write is faster. but intel iops is faster.
for daily usage, gaming and internet browsing or real life world test which is faster ?
post #2 of 71
higher IOPs will give you a much more noticeable difference.

raw sequential speed would hardly give you anything.
your gigabit network can only manage ~120MB/s, your HDDs can only manage 160MB/s, even slower SSDs can only manage 600MB/s.
or simply put, sure either Samsung 950 Pro or Intel 750 would give you over 1500MB/s of sequential speed, but you'd be bottlenecked by everything else in your PC.


on the other hand, IOPs is what affects IO access the most, those 4K read and writes, and also those "lots and lots of small files".
which means higher IOPs would make it so that you can effectively access those files faster, even the fastest 2.5" SSD can only muster ~100MB/s during those file accesses.

Edited by epic1337 - 9/26/15 at 7:14pm
post #3 of 71
Thread Starter 
bump
post #4 of 71
The Samsung 950 Pro is not available as of the date of this post. How could anyone judge which is faster when test results comparing the two SSDs you've asked about don't exist?

Given the usage you listed in your first post, I doubt that you or anyone else could detect any difference between them.

The maximum IO capabilities of good SSDs is rarely used by the majority of their owners. The IOP performance of NVMe SSDs is far beyond what any PC user will ever need. The IOP performance of AHCI SSDs is never used either, the highest queue depth encountered is always single digits, and rarely if ever above five.

Any difference in speed that existed between these two SSDs would be so small that we would be unable to detect it.
post #5 of 71
The Samsung 950 Pro's predecessor, the SM951, has had overheating issues, in which the cards overheat and speeds get throttled back. So we see users removing the labels (which invalidates the warranty) to put heatsinks on.

Now the Samsung 950 Pro is being advertised as including "Dynamic Thermal Throttling (DTT) technology, which controls the temperature of the device to reduce overheating and maintain a high level of sustained performance." Does that mean that they have successfully addressed the overheating problem and these new 950s will be able to maintain the advertised speeds for extended periods without any need for heatsinks?

Has overheating and throttling been a problem with Intel 750s? I haven't seen reports of that, but could have missed them.
post #6 of 71
intel 750s have heatsinks, highest temp with repeated benchmarks on mine has been 35C so far in 25C ambients.
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post #7 of 71
The SM951 didn't even have warranty directly from Samsung, since they were OEM SKU's. Heck many were literally taken from pre-built machines. I would much rather "void" the warranty and put some heatsinks on to prevent any type of catastrophic heat damage (unlikely) versus relying upon a "warranty" that will have me jumping through hoops all the while my computer is not usable. Having said that, "Dynamic Thermal Throttling" reminds me of the initial solutions to overheating Snapdragon 810 chip, and that the speeds just get throttled to meet a certain thermal limit. Again that's just my opinion, as the 950 Pro hasn't even been released yet.
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post #8 of 71
950 Pro should be retail as the naming scheme suggests. Having said that, even if it was cooling itself adequately, I would still put heatsinks on it for longevity and possibly aesthetics even with black solder mask or not.
post #9 of 71
I haven't seen my 750 g past 26*c yet.....it seems to stay at ambient..
Edited by carlhil2 - 10/6/15 at 4:37am
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post #10 of 71
Here's what may be an important point that I haven't seen discussed.

Do Samsung and Intel measure their amounts of space the same way?
Meaning, it looks like 512GB of Samsung gives you a lot more than 400GB of Intel, assuming prices are about the same.
But are those sizes taking factory-overprovisioning into account? If Intels have 512GB but set aside 112GB for overprovision (admittedly a lot, but this example is for the sake of discussion) while Samsungs have 512GB without any factory-overprovisioning, the customer is actually paying for the same amount of storage space.

I raise this point because I know I have been confused in the past about how manufacturers were advertising storage space vs how that storage space was displayed in different operating systems. Playing with megabytes vs mebibytes, for example. You think you are getting one size but then when Windows displays how much space is on the storage device, it's (seemingly) a different number, until you figure out the rules they are following.
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