The Most Stable macOS Version for Late 2012 iMac (GTX 675MX)

Finding the 'Sweet Spot' for 2012 iMac Stability

For a Late 2012 iMac with the GeForce GTX 675MX, the choice of OS depends on your need for graphics acceleration.

Recommended Versions:

1. Most Stable: macOS Monterey (12.7.x). This version provides the best balance of modern app support and performance for the Kepler GPU.
2. OCLP Version: Use OCLP 2.4.1. It has refined patches for the NVIDIA 600 series that prevent the common 'flicker' issues seen in earlier versions.
3. Avoid: We recommend avoiding macOS Sonoma and Sequoia for this specific GPU unless you absolutely need them, as they introduce more UI lag on non-Metal 2 hardware.