AMD Phenom II X4 945 Quad-Core Desktop Processor — 3.0 GHz

Officially original AMD Phenom II X4 945 CPU designed for desktop systems, engineered for Socket AM2+/AM3 with 938-pin compatibility. Built on a 45nm process, this quad-core processor runs at a steady 3.0 GHz, delivering capable multitasking and responsive performance for everyday tasks, multimedia, and lighter gaming on compatible motherboards.

• Core count and frequency: 4 cores at 3.0 GHz for solid multi-threaded performance
• L3 cache: 6 MB of on-die L3 cache to help improve throughput in multi-threaded workloads
• Power profile: 95 W TDP
• Process technology: 45 nm for a balance of efficiency and performance
• Socket compatibility: Socket AM2+/AM3
• Memory support: DDR2-1066 and DDR3-1333 compatible memory configurations
• Packaging: No retail packaging included
• Launch date: 2010

Why this CPU stands out

The Phenom II X4 945 combines legacy socket versatility with modern multi-core performance. It’s particularly appealing for users upgrading older AM2+/AM3 builds who want a four-core boost without replacing the motherboard. The 45nm design packs efficient performance for everyday computing, casual content creation, and multi-task workloads, while the 6 MB of L3 cache helps smooth out complex tasks that benefit from larger on-die storage. With support for both DDR2 and DDR3 memory on compatible boards, this processor offers flexible memory options to fit existing or planned system configurations.

Ideal use cases

• Upgrade for older desktop builds that use AM2+/AM3 sockets, delivering a noticeable improvement in multi-threaded tasks
• Budget-friendly multitasking machine for web browsing, office applications, photo editing, and light content creation
• Retro or mid-range gaming setup on compatible platforms, paired with a suitable GPU and motherboard

Compatibility and setup tips

Before installation, verify that your motherboard supports the Phenom II X4 945 and that the BIOS is updated to recognize this CPU. The processor is designed for Socket AM2+/AM3 and can leverage both DDR2-1066 and DDR3-1333 memory configurations on supported boards. Since packaging is not included, ensure you have a compatible heatsink and mounting hardware, and apply proper thermal paste for reliable operation. As a used component, performance and clock stability may vary slightly between individual units.