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Intel Core i9-11900K vs Dual AMD EPYC 7742

Intel Core i9-11900K on Amazon USA
Dual AMD EPYC 7742 on Amazon USA

Comparison of the technical characteristics between the processors, with the Intel Core i9-11900K on one side and the Dual AMD EPYC 7742 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 server segment, it has a total of 64 cores, 128 threads, its turbo frequency is set to 3.4 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 Dual AMD EPYC 7742
Market Desktop Server
Family Rocket Lake Zen 2
Part number(s), S-Spec Core i9-11900K 100-000000053,
Release date Q1 2021 Q3 2019
Lithography 14 nm+++ 7 nm
Transistors - 79,080,000,000
Cores 8 128
Threads 16 256
Base frequency 3.4 GHz 2.3 GHz
Turbo frequency 5.3 GHz 3.4 GHz
Cache memory 16 MB 512 MB
Max memory capacity 128 GB 8 TB
Memory types DDR4-3200 DDR4-3200
Max # of memory channels 2 16
Max memory bandwidth 45.8 GB/s 381.4 GB/s
Max PCIe lanes 20 256
TDP 125 W 450 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 SP3, LGA-4094
CPU-Z single thread 708 408
CPU-Z multi thread 6,443 26,692
Cinebench R15 single thread 245 145
Cinebench R15 multi-thread 2,140 11,332
Cinebench R20 single thread 604 395
Cinebench R20 multi-thread 5,748 29,937
PassMark single thread 3,754 2,310
PassMark CPU Mark 28,072 55,580
(Windows | Linux)
Geekbench 5 single core
1,808 935
(Windows | Linux)
Geekbench 5 multi-core
9,914 30,139

We can better compare what are the technical differences between the two processors. The processor Dual AMD EPYC 7742 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
Dual AMD EPYC 7742#ad 408
Intel Core i9-11900K#ad 708

In single core, the difference is 74%. In multi-core, the difference in terms of gap is 314%.

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
Dual AMD EPYC 7742#ad 145
Intel Core i9-11900K#ad 245

In single core, the difference is 69%. In multi-core, the difference in terms of gap is 430%.

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
Dual AMD EPYC 7742#ad 395
Intel Core i9-11900K#ad 604

In single core, the difference is 53%. In multi-core, the difference in terms of gap is 421%.

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
Dual AMD EPYC 7742#ad 2,310
Intel Core i9-11900K#ad 3,754

In single core, the difference is 63%. In multi-core, the difference in terms of gap is 98%.

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
Dual AMD EPYC 7742#ad 993
Intel Core i9-11900K#ad 1,808

In single core, the difference is 82%. In multi-core, the difference in terms of gap is 66%.

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 equivalentDual AMD EPYC 7742 Intel equivalent

See also:

Intel Core i9-11900Intel Core i9-11900T

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