Preliminary Information
AMD Athlon™ 64 and AMD Opteron™ Processors
Thermal Design Guide
26633 Rev.
3.03 September
2003
2.6.4.2 High Performance Heatsink Example
When a high performance heatsink is needed to meet thermal or acoustic requirements, other
manufacturing technologies can be used. These technologies combine high-density fin pitches
with thin fins. They may also incorporate copper into the heatsinks. Copper and aluminum are
commonly used together in the same heatsink. Figure 12 shows an example of a heatsink that
would perform better than the low-cost extrusion heatsink The heatsink shown in Figure 12 is
based on high-aspect ratio extrusion manufacturing technology. An example of a high
performance heatsink using a high-density fin technology is shown in Section A.4 on page 64.
Figure 12. High Performance Heatsink with Copper Slug Embedded in the Base
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AMD Athlon™ 64 and AMD Opteron™ Processors Thermal Requirements Chapter 2