Testing Participants
We got our hands on two dual-core Energy Efficient AMD processors. One of them was Athlon 64 X2 4600+ with 65W maximum heat dissipation:
Another one was Athlon 64 X2 3800+ with 35W maximum heat dissipation:
As we have expected, the CPUs differ from their regular brothers by the third symbol in the marking that indicates their type. The diagnostic CPU-Z utility didn抰 reveal any other specific peculiarities of these particular processors, besides the processor Vcore:
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In other words, you cannot really tell the Energy Efficient processors without measuring their electrical and thermal parameters, because they are absolutely the same as the regular CPUs. Just like the common processor models. Energy Efficient Athlon 64 X2 4600+ works at 2.4GHz clock frequency and features 512KB on-die L2 cache, and Athlon 64 X2 3800+ works at 2.0GHz nominal speed and features the same L2 cache.
