Xeon E3-1245 v3

The Xeon E3-1245 v3 is a 4-core / 8-thread processor based on the Haswell-WS (2013−2014) architecture, manufactured on a 22 nm process node. It reaches a maximum boost clock of 3.8 GHz from a base frequency of 3.4 GHz— higher boost clocks directly translate to better single-threaded performance and responsiveness in gaming. With a massive 8192 kB (total) L3 cache (3D V-Cache technology), this processor has a significant gaming advantage — the large cache drastically reduces memory latency in game engines., plus 256 kB (per core) of L2 cache and 64 kB (per core) of L1 cache per core. In the PassMark benchmark (a comprehensive multi-threaded test), it scores 7,036, placing it in the Entry Level performance tier as a Legacy generation product. Geekbench 6 single-core (the most relevant metric for gaming FPS) records 1,203, while multi-core reaches 3,820.

The Xeon E3-1245 v3 fits into the LGA1150 socket and supports PCIe 3.0 with 16 total PCIe lanes for expansion cards and storage. It supports DDR3, DDR4 memory at speeds up to DDR3-1600 (faster RAM improves bandwidth-sensitive workloads), with a maximum capacity of 32 GB across 2 channels (dual-channel doubles bandwidth). It supports ECC memory, providing error-correcting capabilities — essential for mission-critical workloads and servers. Integrated graphics: HD Graphics P4600 — allows display output without a dedicated GPU, useful for troubleshooting and light tasks.

Virtualization: VT-x, VT-d — enables running virtual machines efficiently (important for development and server workloads).

The Xeon E3-1245 v3 has a rated TDP (Thermal Design Power) of 84 Watt — this indicates the amount of heat generated under sustained load and determines what cooling solution is needed. No stock cooler is included — you will need to purchase an aftermarket cooler separately. Recommended cooling: Stock.

At an average price of $490, the Xeon E3-1245 v3 delivers 14 PassMark points per dollar. Performance ranking position: #1574 out of all indexed processors.