Thermal Throttling, Conclusion, Pricing, and Final Thoughts
Thermal Throttling
When Samsung announced the 950 PRO, several of you commented on potential thermal throttling due to heat generated in such a small package during heavy use. The following image represents a worst case scenario, with the 950 PRO being sequentially written with zero airflow across it:
As you can see, you would have to write nearly 150GB at over 1.5GB/sec to get a 950 PRO to warm up enough to throttle, and when it does, the throttling is very minor, dropping to only 1.2GB/sec intermittently. The slightest airflow prevents this from happening at all, and even if there was zero airflow, the chances of maxing a 950 PRO out on writes for that long of a burst is extremely unlikely in even the most demanding consumer usage scenario.
Conclusion
PROS
- Best performing M.2 SSD Tested
- Best performing SSD Tested (period)
- Power Consumption is half that of the closest competing NVMe SSD
- M.2 form factor fits in more places (with adapter)
CONS
- Cost/GB higher than competing (slower) SSDs
- M.2 to PCIe adapter card needed for those without M.2
Pricing and Warranty
- 256GB – $199.99 ($0.78/GB)
- 512GB – $349.99 ($0.68/GB)
- 1TB – (early next year with the switch to 48-layer V-NAND)
These are excellent MSRPs given that these are the fastest consumer SSDs we have ever tested. Warranty period is 5 years rated at 200 terabytes written for the 256GB model and 400 TBW for the 512GB.
Final Thoughts
We knew that any VNAND-equipped successor to the Samsung SM951 would be a great product, and Samsung certainly did not disappoint. While not leaps and bounds ahead of the prior generation SSD, the 950 PRO was faster, and more importantly will be available for sale in retail channels starting today! New Latency Percentile testing was able to pinpoint some slight differences between the two available capacities of the 950 PRO, but these are minor and should not sway potential users from the smaller capacity if that is all their budget can support. The Samsung 950 PRO is an outstanding performer that can fit almost anywhere. Highly recommended for anyone with an M.2 equipped system!
Got it installed yesterday,
Got it installed yesterday, clean install from a thumb-drive using rufus and GPT with W10 Threshold 2….plus it activated no problem. This is on a Maxuimas VII Z97 MB with the latest bios installed…about 6 minute on the install. Here’s a couple of links of screenshots using Magician 4.9 (just came out a couple of days) and CystalMark…
http://i822.photobucket.com/albums/zz143/fvbounty/cystal%201.jpg
http://i822.photobucket.com/albums/zz143/fvbounty/samsung%204.9%20first%20run.jpg
Here’s a link to a picture of
Here’s a link to a picture of temps running Cystalmarks….
http://i822.photobucket.com/albums/zz143/fvbounty/HD%20Sentinal3.jpg
After a fruitless week I am
After a fruitless week I am not able to load Windows 7 & boot from my Samsung the Pro 950 M.2 NVMe PCIe 256GB SSD when fitted to my Asus Z170 Deluxe Motherboard (latest BIOS v1302). Using both the Samsung Utilities for the Pro 950 M.2 NVMe PCIe SSD, I can see this device within the Windows 7 environment & know it works, but I just cannot load my W7 OS onto this card.
I have tried using the Windows 7 Rescue Disc, after cloning my W7 OS system onto the Pro 950 card, but this card just does not appear to exist in the DOS environment!
I am waiting for Asus to reply to my plea for help, but I am not hopeful.
I believe the answer is going to be with new BIOS update from American Megatrends, see link:
http://ami.com/news/press-releases/?PressReleaseID=338&/American%20Megatrends%20Announces%20Support%20for%20NVMe%E2%84%A2%20Host%20Interface%20in%20Aptio%C2%AE%20V%20UEFI%20Firmware/
Since Windows 10 includes a
Since Windows 10 includes a native NVMe driver, and can be installed and run for 30 days (without a product key) for free, why not try with that O.S. and see if the Samsung 950 Pro NVMe SSD can succeed at booting, whereas Win 7 was unable to do so. May require certain UEFI bios settings (such as: disabling CSM), as well as a complete wipe of any existing partitions, letting the Win10 installer create fresh ones.
I take it that you know that
I take it that you know that you have to install windows on this SSD with a UEFI bios setup? Also Samsung have released their own NVME driver. You can find it here:
http://www.samsung.com/global/business/semiconductor/minisite/SSD/global/html/support/downloads.html
Allyn,
Great Review.
Allyn,
Great Review.
I’ve got a question about using the 950 Pro M.2 on my new build. I’ve got an MSi Z97M gaming motherboard, it has an M.2 slot (X2 speed) & also supports NVMe in the UEFI/BIOS. Would I benefit from using the 950 Pro M.2 over the 850 EVO M.2 drive.. or would the 950 Pro M.2 be limited by the X2 M.2 slot? I’m looking at either the 256GB 950 Pro or the 500GB 850 EVO, if the Z97 M.2 slot is going to limit the speed of the 950 Pro to that of the 850 EVO, I’ll probably just go with the latter!? I’m still new to the way M.2 works so, thanks for the assistance.
Again, Thanks. Phil B.
Hi Phil B. This reply is
Hi Phil B. This reply is probably a bit late for you. I have both a 500G 850 EVO and 950 Pro in an i7-6700 build (Asus Z170M MOBO). The 950 is blazingly fast on M.2 NVMe with circa 1,500 MB/s write and 2,400 MB/s reads. For single threaded work on a desktop it’s great. Eg copying 1G files is almost sub second. However if you throw lots of work at it Eg a big W10 update it grinds to 100% busy with latencies over 1,000ms. I even got a peak atency of 10,000ms running Performance Test 8. In these circumstances the 850 is faster overall.
I have a “GA-Z97X-SLI” which
I have a “GA-Z97X-SLI” which has entrance to SSD M.2 10 / Gbs, if I buy a Samsung 950 Pro M.2, it will work 100%? with maximum efficiency?
Sadly, no. I also have the
Sadly, no. I also have the same board, and from what I understand, it only supports the first-gen NVMe M.2 drives at full speed. At best, it’ll work at half-speed.
Mind you, that’s according to what the manual says. I e-mailed Gigabyte about that too, and they were only slightly better than completely unhelpful.
So, again, not having actually tried it, I would say yes, but don’t expect it to perform at full capacity, not with this board.