Intel Core i7-5960X vs Intel Core i5-8600K

Comparison of technical characteristics between computer processors, with the Intel Core i5-8600K on one hand, and the Intel Core i7-5960X on the other hand. The first has a total of 6 cores, 6 threads, a maximum frequency of 4.3 GHz, a thermal design power of 95 W. The second has 8 cores, 16 threads, its turbo frequency reaches 3.5 GHz, its TDP is set to 140 W. The following table also allows us to compare the lithography, the number of transistors (if indicated), the amount of cache memory, the maximum RAM memory capacity, the type of memory accepted, the launch date, the maximum number of PCIe lines , the values obtained in Geekbench 4 and Cinebench R15, as well as the price.


Processor Intel Core i7-5960X Intel Core i5-8600K
Family Haswell E Coffee Lake
Part number(s), S-Spec CM8064801547964,
Release date Q3 2014 Q4 2017
Lithography 22 nm 14 nm++
Transistors 2,600,000,000
Cores 8 6
Threads 16 6
Base frequency 3.0 GHz 3.6 GHz
Turbo frequency 3.5 GHz 4.3 GHz
Cache 20 MB 9 MB
Max memory size 64 GB 64 GB
Memory types DDR4 1600/1866/2133 DDR4-2666
Max PCIe lanes 40 16
TDP 140 W 95 W
Socket LGA 2011-3 LGA 1151
Cinebench R15 single-thread 140 179
Cinebench R15 multi-thread 1,393 1,038
PassMark single thread 1,995 2,515
PassMark CPU Mark 15,950 12,765
Geekbench 4 single-core 4,683 5,559
Geekbench 4 multi-core 29,083 20,351
Rating 4.3 / 5 4.7 / 5
Number of reviews 149 1,941
Price $559 $260
Amazon Intel Core i7-5960X Intel Core i5-8600K
Ebay Intel Core i7-5960X Intel Core i5-8600K

We can better compare what are the technical differences between the two processors. The processor Intel Core i7-5960X has more cores, that the turbo frequency of the Intel Core i5-8600K is bigger, that the heat dissipation power of the Intel Core i5-8600K is smaller. The Intel Core i5-8600K was launched more recently.

Note: prices can change over time. They are not updated regularly. Shipping costs have not been integrated.

Performance comparison between the two processors, for this we consider the following benchmarking softwares: Geekbench 4, PassMark and Cinebench R15.

Geekbench 4:

Processeur Geekbench 4 – Score multi-core & single-core – Windows 64-bit
Intel Core i7-5960X  4 683
 29 083
Intel Core i5-8600K  5 559
 20 351

Geekbench 4 is a complete benchmark platform with several types of tests, including data compression, image encryption, AES encryption, SQL encoding, HTML rendering, PDF rendering, Matrix calculation, Fast Fourier Transformation, 3D object simulation, photo editing, memory testing. This allows us to better visualize the respective power of these two chips. For each result, we took an average of 250 values on the famous benchmark software.

On the single-core side, the difference is 19%. In multi-core, the differential gap is 43%.


Processeur PassMark – CPU Mark & single thread
Intel Core i7-5960X  1,995
Intel Core i5-8600K  2,515

PassMark is a benchmarking software that performs several tests including prime numbers, integers, floating point, compression, physics, extended instructions, encryption, sorting. Higher is the score, bigger is the power of the computer.

On PassMark, there is a difference of 26% in single-core. On the multi-core side, the gap is 25%.

Cinebench R15:

Processeur Cinebench R15 – Score
Intel Core i7-5960X  140
Intel Core i5-8600K  179

Cinebench R15 allows to evaluate the performance of a CPU by rendering a photorealistic 3D scene. The scene has 2,000 objects, 300,000 polygons, antialiasing, uses sharp and fuzzy reflections, bright areas, procedural shaders, shadows, etc. Faster is the rendering of the scene created, more powerful is the PC, with a high number of points.

On this software, there is a difference of 28% in single-core. On the multi-core side, the gap reaches 34%.