I am quite pleased with my Mac Pro build. My motivation was to run X-Plane 11 Flight Simulator with three 27-in curved monitors. This is what built:
Overall, I am very pleased. Using X-Plane 11 with three monitors on the Mac is quite demanding, and the performance I am getting is good but not steller. I am still looking for ways to fine-tune it. But it's a massive improvement over my previous setup (MacBook Pro driving two monitors and networked Mac mini driving the third monitor).
- Started with a used Mac Pro 4,1 (already upgraded to 5,1) that I got off of Craigslist for $530. It was the dual processor model with 8 GB RAM and 1 TB HDD.
- GPU: I first tried the Radeon Vega 64 (sticking with Radeon so I always have the built-in drivers from Apple). That didn't work out. I had the two on-board mini 6-pin aux power ports connected into one of the 8-pin ports in the GPU and the other 8-pin connector in the GPU powered by two SATA power cables. NOT ENOUGH POWER. I went back to Micro Center and exchanged the 64 for a Vega 56, which works great now with the same power setup. I kept the factory Nvidia 120 card installed so I can quickly get the boot screen if necessary.
- RAM: bought 4x8 RAM good for 1600 MHz. After CPU was upgraded and PRAM reset, it's pushing 1333 MHz as expected.
- CPU: dual Xeon X5690 3.46 MHz 6-core processors. Bought a complete kit of de-lided processors from Ebay and they worked really well. Very easy swap process.
- Storage: kept the 1 TB HDD and added a 6G PCIe card with 500 GB SSD from OWC. Plug-and-play, and pretty darn fast. Boot-up is super quick now.
- Connected 3 AOC 27in curved monitors for a wrap-around immersive feel. It works great.
Overall, I am very pleased. Using X-Plane 11 with three monitors on the Mac is quite demanding, and the performance I am getting is good but not steller. I am still looking for ways to fine-tune it. But it's a massive improvement over my previous setup (MacBook Pro driving two monitors and networked Mac mini driving the third monitor).