The Intel Core 2 Extreme QX9300 was a mobile processor with 4 cores, launched in August 2008. It is part of the Core 2 Extreme lineup, using the Penryn QC XE architecture with Socket P. To further increase overall system performance, up to two Core 2 Extreme QX9300 CPUs can work together in a multi-processor (SMP) configuration. Core 2 Extreme QX9300 has 6 MB of L2 cache and operates at 2.534 GHz. Intel is making the Core 2 Extreme QX9300 on a 45 nm production node, the transistor count is unknown. You may freely adjust the unlocked multiplier on Core 2 Extreme QX9300, which simplifies overclocking greatly, as you can easily dial in any overclocking frequency.
With a TDP of 45 W, the Core 2 Extreme QX9300 consumes typical power levels for a modern PC.
Hardware virtualization is available on the Core 2 Extreme QX9300, which greatly improves virtual machine performance.