I got Mojave running perfectly with an Nvidia GT 740 and ALC888b Audio (Would prefer to use my spare GTX 960) but can confirm that a GT 740 works with Mojave : r/hackintosh
Nvidia GeForce GT 640 for Apple Mac Pro 1GB Displayport 4K 120 Supports Mojave! | eBay
NVIDIA GeForce GT 120 Mac Edition, Computers & Tech, Desktops on Carousell
Fun fact: GT 220 has Mojave support : r/hackintosh
Nvidia GT 120 running Mojave | MacRumors Forums
Make Your Mac Pro Tower Mojave Compatible with a GPU Upgrade
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When will the Nvidia Web Drivers be released for macOS Mojave 10.14 - - Drivers - Linux, Windows, MacOS - NVIDIA Developer Forums
Flashing a MP 4,1 to 5,1 w/ Mojave (NVIDIA GeForce GT 120 512 MB GPU) | MacRumors Forums
New Mac Pro Graphics Cards in Older Mac Pros
OSX Mojave (or 4,1/5,1 just won again!) - MACVIDCARDS.COM
Nvidia Geforce GT 630 2GB für Apple Mac Pro 3.1 - 5.1 | Metal & Mojave | Tronicspot
OSX Mojave (or 4,1/5,1 just won again!) - MACVIDCARDS.COM
APPLE MAC PRO NVIDIA GT120 512MB 原廠顯卡! 現貨.!Mojave 10.14 | Yahoo奇摩拍賣
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NVIDIA GeForce GT 120 Mac Edition, Computers & Tech, Desktops on Carousell
Nvidia GT120 Grafikkarte aus Mac Pro mit Bootscreen in Nordrhein-Westfalen - Viersen | Grafikkarte gebraucht kaufen | eBay Kleinanzeigen ist jetzt Kleinanzeigen
5,1 Mojave no metal gpu : r/macpro
Mac Pro Metal Video Card for Mojave and Up AMD Radeon HD 7950 3GB 5.1 A1289 2009 2010 2011 2012 graphic card DIY Parts replacement Video Cards