Question 1

What's the difference between this 980 1tb ssd and the 970 evo 1tb?

Accepted Answer

tl;dr - the 980 runs cooler, since it's not got that DRAM cache, and it will write 20GB a whopping .6 seconds slower than the 970 EVO Plus and 1.3 seconds faster than the 970 EVO.   980 is hands-down the SSD to pick.  Details to follow if you're interested:

tl;you're STILL going to read?  OK, here ya go:

Here's a rundown on how you would perceive the speed difference between the 970 EVO and the 980.  At these verified _maximum_ transfer rates - if you are writing a 20 GB file okay?  WRITING a 20GB file (assuming the source drive is not a bottleneck, i.e. is equivalent for both), the _theoretical_ elapsed time for the different SSDs is:

The 980                  will write that 20GB in ~6.7 seconds (at 3000 MB/s)
The 970 EVO Plus will write that 20GB in ~6.1 seconds (at 3300 MB/s)
The 970 EVO         will write that 20GB in ~8 seconds (at 2500 MB/s)

Which is to say that the differences would normally not be perceived.  When considering that the 980, without the DRAM, is generating less heat - which matters - I would definitely go with the 980 for better heat management and a $20 savings over the 970 EVO Plus  (2021-05-16 prices).   You're only losing .6 seconds for those frequent huge file writes, heh.

20 GB is easily 3 to 5 full-length videos, in HD, or more - in under 7 seconds!  Crazy.

Yep, go with the 980 with lower heat and wave goodbye to the .6 seconds... Ehh, probably not enough time to wave - wink goodbye. ;-)

As far as downloads - I cannot conceive of a situation where these SSDs will have ANY effect upon the speed. Period.  Even on a super-fast broadband connection, the network is going to be the bottleneck.  We are not quite getting multiple GB/s on typical broadband service.  Typically, even a SATA drive at 550 MB/s will surpass most broadband download speeds, substantially even - most of the time.

My .02 and change.

Yeah - the cooler-running 980 would be my pick.  The 980 wasn't available when I got the 970 EVO at $135, and the Plus was $170 back then.  At that time, I reasoned that the fully ONE WHOLE SECOND SLOWER for that 20GB file was something I could probably live with.  Samsung is doing really well - consistently at the top.

Sorry so verbose.

Question 2

What is the difference between 970 evo plus vs 980 ssd?

Accepted Answer

From what I have read, 970 has built in cache and 980 doesn't.  However, 980 being newer has other features. In real everyday performance, I cannot see a difference. I have 2 computers with same motherboard chipset and processors. One boots to a 970 the other to a 980. Equal performance in my opinion. I would get whichever is the best price. Hope this helps.

Question 3

I have older asrock z370 pro4 motherboard, it says it supports ultra m2 ssd, but not sure if nvme is supported? do nvme drives need different m2 slot?

Accepted Answer

According to the specs on your motherboard:   
2 x Ultra M.2 Sockets (M2_1 and M2_2), supports M Key type 2230/2242/2260/2280 M.2 SATA3 6.0 Gb/s module and M.2 PCI Express module up to Gen3 x4 (32 Gb/s) *Supports NVMe SSD as boot disks

This is key type 2280 so it will work for you

Question 4

Is the ssd compatible with amd ryzen ™ 7 3750h (um700 minisforum)?

Accepted Answer

you need to check with your laptop official website

ASIN	B08V7GT6F3
Best Sellers Rank	156,148 in Computers & Accessories ( See Top 100 in Computers & Accessories ) 741 in Internal Solid State Drives
Box Contents	SSD Drive
Brand Name	Samsung
Cache Memory Installed Size	500
Color	black
Compatible Devices	[Desktop, Laptop]
Customer Package Type	Standard Packaging
Customer Reviews	4.8 4.8 out of 5 stars (4,927)
Data Transfer Rate	3100 Megabits Per Second
Digital Storage Capacity	500 GB
Form Factor	M2
Hard Disk Description	M.2 NVMe Internal Solid State Drive
Hard Disk Form Factor	2.21 Centimetres
Hard Disk Interface	NVMe
Hard-Drive Size	500 GB
Hardware Connectivity	Solid State Drive
Installation Type	Internal Hard Drive
Item Type Name	Internal SSD
Item Weight	0.02 Pounds
Manufacturer	Samsung
Manufacturer Part Number	MZ-V8V500B/AM
Media Speed	375 Megabytes per second
Model Name	SAMSUNG 980 SSD
Model Number	MZ-V8V500BW/AM
Network Connectivity Technology	PCIe
Number of Items	1
Read Speed	3100 Megabytes Per Second
Specific Uses For Product	Gaming
UPC	887276437200
Unit Count	1.0 count

Samsung (MZ-V8V500B/AM 980 SSD 500GB - M.2 NVMe Interface Internal Solid State Drive with V-NAND Technology

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