Intel Core i7-8700K

Pros

• Strong overclocking potential, with some users reaching 4.9GHz to 5.0GHz.
• Hyper-threading (6 cores/12 threads) provides a smoother experience in multi-threaded tasks compared to i5 models of the same era.
• Still a viable 'cheap' used upgrade for users already on the LGA 1151 platform.
• Reliable performance for 1080p gaming in less demanding titles.

Cons

• Significant bottleneck for modern high-end graphics cards.
• Struggles with modern, CPU-intensive games (e.g., Space Marine 2).
• Used market pricing is often considered poor or 'silly' compared to newer, faster budget CPUs.
• Can run hot when overclocked, sometimes reaching 85C even with high-end air coolers.

Caveats

• Performance is limited by the PCIe 3.0 interface when paired with newer components.
• Requires a Z-series motherboard to utilize its primary advantage: overclocking.
• Often requires delidding or high-end cooling to maintain stable high clock speeds without thermal throttling.

Best for

• Budget-conscious users looking for a used upgrade on an existing 8th/9th gen Intel motherboard.
• 1080p gaming builds using mid-range or older GPUs.
• Users who enjoy manual overclocking and 'silicon lottery' testing.

Avoid if

• You are building a new PC from scratch (modern budget platforms offer better value).
• You plan to use a high-end GPU (RTX 30-series or 40-series and above).
• You play modern, CPU-heavy AAA titles at high refresh rates.