You can use an amd sempron or an amd athlon II with an am3 socket, but when am3 was released it was meant to be used with the amd phenom line of CPUs. You can use all three: amd sempron, amd athlon II & amd phenom.
Am3 pga
The effective average operating temperature for the AMD Phenom II X4 955 is approximately 47 degrees Celsius or 153 degrees Fahrenheit. However if you purchase and utilize an aftermarket cooling fan, it is possible for you to lower the temperature by as much as 10 degrees Celsius or 50 degrees Fahrenheit. You can cool this processor even further if you install a water cooling system but this requires tremendous computer hardware experience to install.
Its not needed but recommended for better use.
the Phenom II X4 955 is great and affordable
Phenom II X4 955 or PCI-E
The AMD Phenom II X3 720 CPU can operate at up to 73 degrees celsius, but standard operating temperatures will range from 35-42 degrees celsius.
It depends on the CPU, the older ones with a lower amount of cores tend to not work so well on sony vegas. The phenom ii's and the new amd's and intel's tend to do the job, but more cores is better for video editing.
The top three AMD processors are all part of the new Phenom II X6 six-core processor lineup, codenamed "Thuban". They are as follows: (prices quoted are from Newegg.com) Phenom II X6 1100T Black Edition - 3.3 GHz - $269.99 Phenom II X6 1090T Black Edition - 3.2 GHz - $229.99 Phenom II X6 1075T - 3.0 GHz - $199.99 All three have a 125 watt power consumption and run on AMD's Socket AM3.
Intel: - Core i7 - Core i5 - Core 2 Duo AMD: - Athlon II x4 - Phenom II x4 - Opteron
Triple Edit: "Triple?" What does this mean? Triple core? There are Rana processors that are shipped as dual-core but have 3 cores on the die. This means that your answer is wrong. The most common examples are triple-core processors, but not all of them. As for actual examples, Phenom X2-X3 and Athlon X3 processors are famous for having locked cores.
its basicly the same, but without L3, lower speeds