M.2 960 Evo SSD or 850 Evo?

Badelhas

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Oct 4, 2011
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Hello guys.

I own a Asus P8Z68-V Pro motherboard and a Intel 2500k CPU, overclocked to 4.4ghz. Yes, it's 5 year old but to be honest I didn't yet really feel the need to upgrade since the last 5 CPU generations were small performance upgrades, and this one still seems to be working great. I blame AMD for that of course, it's the lack of competition that makes Intel not even try to revolutionize the market.
Here's the link for my motherboard specs: https://www.asus.com/Motherboa...

I've been using a 120gb Vertex 3 Sata drive and it works great but the lack of space is annoying. Doom 2016 game, for instance, is 50gb alone so I had to put it on the HDD drive and the loading time takes forever.
I know that my PCIe is only 1.0 x4 but I could buy a PCIe 3.0 x4 to M.2 adapter for cheap and it would be retro compatible, even if working at lower speeds. Is there a PCIe 2.0 x16 (graphic card length)with to M.2 adapter?
Would I notice any real world difference if I upgrade from my Vertex 3 to a Samsung 960 Evo M.2 SSD with my current setup (with the adapter of course), or should I just buy a 500gb sata Samsung 850 Evo SSD?
And I if go the 850 Evo way, will I notice any performance difference at all?
Thanks :)

Cheers