How can I determine if my older Pentium 4 processor has SSE3 support?
You can download and run the utility below to determine if your Pentium IV processor does support SSE3.
Please go to:
Download the CPU-Z utility and it will show what is supported by your processor.
When you launch CPU-Z, on the first screen there is a field that is labeled “Instructions”. Next to “Instructions” will list what is supported by your processor. If supported it will say “SSE (1, 2, 3)” If you see a 3 in paranthesis that indicates your processor does support SSE3.
Older computers do not always have support for SSE3. For more information about SSE3 support, please click here.