Intel Core i7-5960X vs Intel Core i7-6900K

Comparison of technical characteristics between computer processors, with the Intel Core i7-6900K on one hand, and the Intel Core i7-5960X on the other hand. The first has a total of 8 cores, 16 threads, a maximum frequency of 3.7 GHz, a thermal design power of 140 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 i7-6900K
Family Haswell E Broadwell E
Part number(s), S-Spec CM8064801547964,
Release date Q3 2014 Q2 2016
Lithography 22 nm 14 nm
Transistors 2,600,000,000 3,200,000,000
Cores 8 8
Threads 16 16
Base frequency 3.0 GHz 3.2 GHz
Turbo frequency 3.5 GHz 3.7 GHz
Cache 20 MB 20 MB
Max memory size 64 GB 128 GB
Memory types DDR4 1600/1866/2133 DDR4 2400/2133
Max PCIe lanes 40 40
TDP 140 W 140 W
Socket LGA 2011-3 LGA 2011-3
Cinebench R15 single-thread 140 148
Cinebench R15 multi-thread 1,393 1,590
PassMark single thread 1,995 2,190
PassMark CPU Mark 15,950 17,685
Geekbench 4 single-core 4,683 4,703
Geekbench 4 multi-core 29,083 29,367
Rating 4.3 / 5 4 / 5
Number of reviews 149 51
Price $559 $1,022
Amazon Intel Core i7-5960X Intel Core i7-6900K
Ebay Intel Core i7-5960X Intel Core i7-6900K

We can better compare what are the technical differences between the two processors. We see that the two processors have an equivalent number of cores, that the turbo frequency of the Intel Core i7-6900K is bigger, that their respective TDPs are of the same order identical. The Intel Core i7-6900K 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 i7-6900K  4 703
 29 367
Intel Core i7-5960X  4 683
 29 083

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 0%. In multi-core, the difference in terms of gap is 1%.


Processeur PassMark – CPU Mark & single thread
Intel Core i7-6900K  2,190
Intel Core i7-5960X  1,995

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 10% in single-core. On the multi-core side, the gap is 11%.

Cinebench R15:

Processeur Cinebench R15 – Score
Intel Core i7-6900K  148
Intel Core i7-5960X  140

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 6% in single-core. On the multi-core side, the gap reaches 14%.