3 (Samsung, hynix, micron), but it's all the same tech for ddr4 and they perform within margain of error unless you get Samsung bdie, but that shit's spendy.

Well that's the 3 biggies. But for ex. here's DDR3's list of IC manufacturer's for Corsair...

1.X Qimonda 64/128Mx8
1.1X Qimonda 256x8
1.2X Qimonda 512Mx8
2.X Elpida 64/128Mx8
2.1X Elpida 256Mx8
2.2X Elpida 512Mx8
3.X Micron 128Mx8
3.1X Micron 256Mx8
3.2X Micron 512Mx8
4.X Samsung 128Mx8
4.1X Samsung 256Mx8
4.2X Samsung 512Mx8
5.X Hynix 128Mx8
5.1X Hynix 256Mx8
5.2X Hynix 512Mx8
6.X Promos 128Mx8
6.1X Promos 256Mx8
6.2X Promos 512Mx8
7.X (PSC) 128Mx8
7.1X (PSC) 256Mx8
7.2X (PSC) 512Mx8
8.X Nanya 128Mx8
8.1X Nanya 256Mx8
8.2X Nanya 512Mx8
9.X Winbond A1-Die 128MX8
9.1X Winbond 256Mx8
9.2X Winbond 512Mx8



/e Looks like the same companies still make the DDR4 RAM IC chips too.

https://www.statista.com/statistics/271726/global-market-share-held-by-dram-chip-vendors-since-2010/


I bought my Corsair Dominator Platinum DDR3 sticks in 2013 and I got one set with Micron and the other set with Nanya. Point is, the highest market share for Nanya in 2013 was 4.9% yet I still managed to get a set made by them... in Corsair's top of the line RAM sets. Both sets were ordered at the same time, and both came from Newegg.

This post was edited by Ghot on Oct 29 2018 08:27am

Damn, guess I was misinformed on that. I still stand by the statement that you won't notice a difference between different companies at the same spec.