Intel Core i7-5820K vs Intel Core i5-1235U

Core i7-5820K vs Core i5-1235U benchmarks

In our benchmarks, the Core i7-5820K beats the Core i5-1235U in overall performance. Despite this, the Core i5-1235U has the advantage in our gaming benchmark.

With info from our database, we find that the Core i5-1235U has significantly more cores with 10 cores whereas the Core i7-5820K has 6 cores. But they both have the same number of threads. With our hardware info, we find that the Core i7-5820K has a significantly higher clock speed than the Core i5-1235U. Despite this, the Core i5-1235U has a slightly higher turbo speed. The Core i5-1235U outputs less heat than Core i7-5820K thanks to a significantly lower TDP. This measures the amount of heat they output and can be used to estimate power consumption.

The more cores a CPU has, the better the overall performance will be in parallel workloads such as multitasking. Many CPUs have more threads than cores, this means that each physical core is split into multiple logical cores, making them more efficient. Indeed, the Core i7-5820K has more threads than cores. Each physical core is split into multiple threads.