CPU Comparison

Core i7-875K vs Intel Core i7-920

A side-by-side comparison of specs, performance and value. The Intel Core i7-875K is an enthusiast desktop processor launched in May 2010, based on the 45nm Lynnfield architecture. It is notable for being Intel's first 'K-series' processor, featuring a fully unlocked multiplier. Operating at a base frequency of 2.933 GHz and boosting up to 3.6 GHz via Turbo Boost, it offers 4 cores and 8 threads. The unlocked multiplier was a significant shift in Intel's strategy, allowing enthusiasts to easily overclock via multiplier adjustments rather than relying solely on Base Clock (BCLK) tweaks. It utilizes the LGA 1156 socket and integrates a dual-channel DDR3 memory controller and 16 PCIe 2.0 lanes. With a 95W TDP, it shares the same physical characteristics as the i7-870 but with enhanced tuning capabilities. The 875K lacked a stock cooler, emphasizing its enthusiast focus. Although obsolete, it is a historically important CPU that democratized overclocking on the Intel platform.