PID: 30430 Rev 3.51 March 2006
AMD Athlon™ 64 Processor Power and Thermal Data Sheet
Notes:
1. Tcase max is the maximum case temperature specification which is a physical value in degrees Celsius. This value
is programmed into Rev D and later processors. Refer to the appropriate functional data sheet, and the
THERMTRIP Status Register in the BIOS and Kernel Developer’s Guide for AMD Athlon™ 64 and
AMD Opteron™ Processors, order# 26094.
2. Tcontrol max (maximum control temperature) is a non physical temperature on an arbitrary scale that can be used
for system thermal management policies. Tcontrol max represents the value at which the processor has reached
Tcase max when measuring the thermal diode with a dual sourcing current temperature sensor. Refer to the
appropriate functional data sheet, and the THERMTRIP Status Register in the BIOS and Kernel Developer’s
Guide for AMD Athlon™ 64 and AMD Opteron™ Processors, order# 26094.
3. The VID_VDD voltage is the VID[4:0] requested VDD supply level. Refer to the appropriate functional data
sheet for details.
4. Thermal Design Power (TDP) is measured under the conditions of Tcase Max, IDD Max, and VDD=VID_VDD,
and include all power dissipated on-die from VDD, VDDIO, VLDT, VTT, and VDDA.
5. Assumes Tcase max, max P-state VID_VDD, clock divider set to 32.
6. Assumes 50°C, min P-state VID_VDD, clock divider set to 32.
7. Assumes 35°C, VDD, VDDA, and VLDT supplies are off, VDDIO and VTT are powered, memory in self-
refresh mode and DDR SDRAM interface tri-stated except CKE pins. Refer to the appropriate functional data
sheet for complete VDDIO and VTT power supply specifications.
8. Thermal Design Power dissipated by the processor VDDIO, VTT, VLDT, and VDDA power planes only.
9. Thermal Design Power dissipated by the processor VDDIO and VTT power planes only.
10. Refer to the AMD Athlon™ 64 Processor Desktop Power Roadmap, order #26882, for IDD Max and Thermal
Design Power requirements for future processor revisions.
11. Implementation of this P-state is optional in BIOS.
12. Assumes VDDIO = 2.6 V and VTT = VDDIO / 2. Refer to the appropriate functional data sheet for complete
VDDIO and VTT power supply specifications.
13. Tcase max is programmed during device manufacturing with part-specific values for Rev E and later processors,
and can be any valid Tcase max value in the range specified for the corresponding OPN.
14 Thermal Design Power (TDP) and IDD max for Rev E and later processors are the limits at the highest Tcase max
in the specified range for the corresponding OPN. Products will conform to the TDP and IDD Max limits at all
valid voltages. The relationship of Tcase max and Thermal Profile to TDP for a specific device is defined in
Table 44.
15 Thermal Design Power (TDP) specifications for dual core processors assume equivalent P-states (Voltage and
frequency) and equivalent Tcase conditions for both cores. Refer to the BIOS and Kernel Developer’s Guide for
AMD Athlon™ 64 and AMD Opteron™ Processors, order# 26094, for details on P-state operation for dual core
processors.
16 IDDC1 specifications for dual core processors assume equivalent Voltage, clock divisor, and Tcase conditions for
both cores.
AMD Athlon™ 64 X2 Dual Core Processor
94
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