Intel CPU 功耗大全
阿新 • • 發佈：2019-02-08
- Vmax is the maximum non-operating (failure) voltage.
- Regarding the chip's wattage numbers, Intel states: "The [Thermal Design Power] numbers ... reflect Intel's recommended design point and are not indicative of the maximum power the processor can dissipate under worst case conditions."
- If the on-Die thermal probe reaches approximately 135° C (its catastrophic temperature), the CPU will automatically shut down and "the system bus signal THERMTRIP# will go active and stay active until the processor has cooled down and a RESET# has been initiated."
- Core voltage varies with the amount of amperage being pulled by the CPU. Which is why the Prestonia's VID voltage (1.5v) is actually higher than it's maximum rated voltage (the chip will never actually be run at its VID voltage except under no-load conditions).
- Max Processor Power for the Xeon MP is the "maximum thermal power that can be dissipated by the processor through the integrated heat spreader."
- In Sep 2002, electrical numbers for the 2.6 and 2.8GHz Prestonia chips changed. Not sure why. Voltage limits were adjusted slightly downward. Amperage went up. Wattage decreased and max Tcase went up.
- Tcase for the Nocona CPUs is the thermal solution design point (Tcase_maxB), though the TCC on the chip will not allow the processor to exceed Tcase_maxA.
- For Tulsa chips Icc_Max is based on Vcc_Max loadline.