The market for people buying an expensive CPU and using it for gaming at 1080p is likely to be very slim. What 1080p does is give a good indication of the CPU’s raw gaming performance as GPU power is sufficient to push frame rates to a level where the CPU and memory limitations can be observed.
We supplement the 1080p gaming results with a pair of games tested at 1440P and 4K. We chose Ghost Recon Wildlands and GTA V as they are computationally-heavy, open-world games with good built-in benchmarks.
Ghost Recon Wildlands
We run the built-in benchmark using a 1440P and 4K resolution and the same settings as the 1080p test (Very High preset).
Grand Theft Auto V
We run the built-in benchmark using a 1440P and 4K resolution and the same settings as the 1080p test (generally Maximum quality settings including Advanced Graphics).
1440P and 4K Gaming Performance Overview:
Even with the resolutions increased, the Kaby Lake and Kaby Lake-X Core i7 CPUs maintain their positions atop the charts. If you are a high-resolution gamer, the Core i7-7740X is a good CPU for your system. However, it does not offer a noticeable performance advantage over the i7-7700K and its cheaper LGA 1151 platform.
4K60 gamers are spoilt with choice when it comes to purchasing a CPU. There’s little performance difference between all of the chips on display at this resolution where GPU horsepower is in high demand. Kaby Lake-X is up there amongst the fastest options at 4K but it isn’t necessarily the best choice if you also want to stream gameplay at the same time.