Wbmw:
You are using the wrong document. Yours covers the AM2 versions while my 3500+ is a 939 package. The A64 3500+ CPU of mine uses the following thermal data sheet:
amd.com
This has been updated many times and currently is at rev 3.51. In the original, TDP was the maximum thermal dissipation power. In this version they changed the name, but not the conditions it uses.
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.
That they are now going to a lesser definition to remove some of the perceived power differences, is a decision I can understand, but not agree with. They still keep that no processor of AMD's will exceed their specified thermal design power, a claim Intel does not make. Thus AMD's may be a tighter upper bound constraint than the 40340 TDP, but it is still a strict upper bound. Intel won't guarantee that.
The way that they (Intel) slip it in is that given a HSF that will push the CPU to the TMA2 trip point at the specified TDP and the BIOS enabled TMA2, then and only them, will the TDP be a strict upper bound. No one would design it that way, including Intel with the HSF they include in their retail CPU packages.
As I said, a marketing dodge.
My CPU is on page 25 labeled "ADA3500DAA4BW". I have a max Tcase on thermal profile B of 59C (50W). The family has a TDPmax of 67W, so mine dissipates about 3/4ths of what the family can.
Pete |
