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Intel Core i9-11900K vs Intel Core i9-7900X

Intel Core i9-11900K on Amazon USA
Intel Core i9-7900X on Amazon USA

Comparison of the technical characteristics between the processors, with the Intel Core i9-11900K on one side and the Intel Core i9-7900X on the other side. The first is dedicated to the desktop sector, It has 8 cores, 16 threads, a maximum frequency of 5.3GHz. The second is used on the desktop segment, it has a total of 10 cores, 20 threads, its turbo frequency is set to 4.3 GHz. The following table also compares the lithography, the number of transistors (if indicated), the amount of cache memory, the maximum RAM memory capacity, the type of memory accepted, the release date, the maximum number of PCIe lanes, the values ​​obtained in Geekbench 4 and Cinebench R15.


Processor Intel Core i9-11900K Intel Core i9-7900X
Market Desktop Desktop
Family Rocket Lake Skylake-X
Part number(s), S-Spec Core i9-11900K BX80673I97900X,
Release date Q1 2021 Q2 2017
Lithography 14 nm+++ 14 nm+
Transistors - 3,800,000,000
Cores 8 10
Threads 16 20
Base frequency 3.4 GHz 3.3 GHz
Turbo frequency 5.3 GHz 4.3 GHz
Bus speed 8 GT/s 8 GT/s
Cache memory 16 MB 13.75 MB
Max memory capacity 128 GB 128 GB
Memory types DDR4-3200 DDR4-2666
Max # of memory channels 2 4
Max memory bandwidth 45.8 GB/s 85 GB/s
Max PCIe lanes 20 44
TDP 125 W 140 W
GPU integrated graphics Intel UHD Graphics 630 (Rocket Lake) None
GPU execution units 24 -
GPU shading units 192 -
GPU base clock rate 350 MHz -
GPU max clock rate 1200 MHz -
Socket LGA1200 LGA2066
CPU-Z single thread 708 462
CPU-Z multi thread 6,443 5,534
Cinebench R15 single thread 245 192
Cinebench R15 multi-thread 2,140 2,162
Cinebench R20 single thread 604 450
Cinebench R20 multi-thread 5,748 5,180
PassMark single thread 3,754 2,550
PassMark CPU Mark 28,072 21,720
Geekbench 5 single core
1,808 1,123
Geekbench 5 multi-core
9,914 9,979

We can better compare what are the technical differences between the two processors. The processor Intel Core i9-7900X has a larger number of cores, the maximum frequency of Intel Core i9-11900K is greater, that the PDT of Intel Core i9-11900K is lower. The Intel Core i9-11900K was designed earlier.

Performances :

Performance comparison between the two processors, for this we consider the results generated on benchmark software such as Geekbench 4.

CPU-Z - Multi-thread & single thread score
Intel Core i9-11900K#ad 708
Intel Core i9-7900X#ad 462

In single core, the difference is 53%. In multi-core, the differential gap is 16%.

CPU-Z is a system information software that provides the name of the processor, its model number, the codename, the cache levels, the package, the process. It can also gives data about the mainboard, the memory. It makes real time measurement, with finally a benchmark for the single thread, as well as for the multi thread.

Cinebench R15 - Multi-thread & single thread score
Intel Core i9-7900X#ad 192
Intel Core i9-11900K#ad 245

In single core, the difference is 28%. In multi-core, the difference in terms of gap is 1%.

Cinebench R15 evaluates the performance of CPU calculations by restoring a photorealistic 3D scene. The scene has 2,000 objects, 300,000 polygons, uses sharp and fuzzy reflections, bright areas, shadows, procedural shaders, antialiasing, and so on. The faster the rendering of the scene is created, the more powerful the PC is, with a high number of points.

Cinebench R20 - Multi-thread & single thread score
Intel Core i9-11900K#ad 604
Intel Core i9-7900X#ad 450

In single core, the difference is 34%. In multi-core, the differential gap is 11%.

Cinebench R20 is a multi-platform test software which allows to evaluate the hardware capacities of a device such as a computer, a tablet, a server. This version of Cinebench takes into account recent developments in processors with multiple cores and the latest improvements in rendering techniques. The evaluation is ultimately even more relevant.

PassMark - CPU Mark & single thread
Intel Core i9-11900K#ad 3,754
Intel Core i9-7900X#ad 2,550

In single core, the difference is 47%. In multi-core, the differential gap is 29%.

PassMark is a benchmarking software that performs several performance tests including prime numbers, integers, floating point, compression, physics, extended instructions, encoding, sorting. The higher the score is, the higher is the device capacity.

On Windows:

Geekbench 5 - Multi-core & single core score - Windows
Intel Core i9-7900X#ad 1,123
Intel Core i9-11900K#ad 1,808

In single core, the difference is 61%. In multi-core, the difference in terms of gap is 1%.

Geekbench 5 is a software for measuring the performance of a computer system, for fixed devices, mobile devices, servers. This platform makes it possible to better compare the power of the CPU, the computing power and to compare it with similar or totally different systems. Geekbench 5 includes new workloads that represent work tasks and applications that we can find in reality.


Intel Core i9-11900K AMD equivalentIntel Core i9-7900X AMD equivalent

See also:

Intel Core i9-11900Intel Core i9-11900T © 2021 - Privacy policy - Advertising policy


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