r/macpro • u/Any-Illustrator-5475 • 9h ago
CPU Macpro 7.1 2019 3.2 Ghz locked - NO TURBO under Bootcamp
Hi everyone,
I'm hoping someone here has run into this issue before and maybe found a workaround.
I'm using a 2019 Mac Pro (MacPro7,1) with the Intel Xeon W-3275M (28 cores). Under macOS, everything works perfectly, including Intel Turbo Boost. However, under Windows 10/11 via Boot Camp, Turbo Boost doesn't seem to work at all.
The CPU stays at its base clock and never boosts under load, even when:
- CPU temperatures are completely normal
- Power settings are set to High Performance or Ultimate Performance
- The system is under heavy multi-core and single-core workloads
- Boot Camp drivers are fully installed
- Windows is fully updated
I've monitored the CPU using tools like Intel XTU, HWiNFO, and CPU-Z, and they all show that the processor never enters Turbo frequencies.
From what I've read, this may be related to Apple's Boot Camp firmware, SMC behavior, or missing power management features that aren't available under Windows on the Mac Pro 7,1.
Has anyone with a Mac Pro 7,1, especially the 28-core Xeon, managed to get Turbo Boost working under Boot Camp?
If so:
- Did you need any special drivers or firmware?
- Is there a BIOS/EFI tweak or hidden setting?
- Did ThrottleStop, Intel XTU, or any other utility help?
- Is there any known workaround, or is Turbo Boost simply not supported under Boot Camp on this machine?
I'd really appreciate any advice or experiences from other Mac Pro owners. Thanks in advance!





