If you’re looking to pre-order Apple’s new Studio Display XDR monitor today but have an older Mac, beware of some potential issues. According to the compatibility list spotted by Apple Insider, the new display will only work at 60Hz and not at its full 120Hz refresh rate on some older and less powerful Silicon models. Moreover, support for older Intel Macs isn’t mentioned at all for either the Studio Display XDR or cheaper Studio Display.

All Apple Silicon Macs will work with both monitors, including those with the oldest M1 chips, according to the support pages. However, the compatibility list for the Studio Display XDR includes this nugget: “Mac models with M1, M1 Pro, M1 Max, M1 Ultra, M2, and M3 support Studio Display XDR at up to 60Hz. All other Studio Display XDR features are supported.” So even if you have a hotrod M1 Ultra-based Mac, the Studio Display XDR’s refresh rate is capped at 60Hz — despite the fact that the chip can drive third-party monitors at 120Hz.

Similarly, only the iPad Pro M5 supports the Studio Display XDR at 120Hz, with all other compatible models (in the iPad Pro and iPad Air family) limited to 60Hz.

Intel Mac support isn’t mentioned at all in the compatibility list for either display, though they may function in some limited manner when connected. Intel Macs just received their last new OS update with macOS Tahoe (and only three more years of security updates), but it’s still surprising that they’re not compatible with Apple’s latest monitors.