I tried both, same result.
Off topic, but since you mentioned JIT. Does the setting work at all for you? I have this OS3.9 setup and I cant spot any difference in usage if I enable JIT or not. Also SysInfo speed tests are the same, about 12 times faster compared to A4000 040/25
It does, also depends of CPU speed setting.
I'd listen to what Broadblues said and get back to him here.