Great CPU for upgrade from Core 2 duo
I used it to replace a core 2 duo. The gain in speed is significant for heavy operations.
The Q9505S (must have the S!) uses a 45 nm die that makes it run cooler and use a lower voltage and less power.
Check with the recommended CPU list of your motherboard to make sure that it is compatible with this CPU. If it is, don't hesitate, this is one of the best of the Core 2 quad versions.
Verified purchase: YesCondition: Pre-owned