In this CPU comparison, we compare the Intel Core i9-11900K and the Intel Core i7-11700K and use benchmarks to check which processor is faster.
We compare the Intel Core i9-11900K 8 core processor released in Q1/2021 with the Intel Core i7-11700K which has 8 CPU cores and was introduced in Q1/2021.
The Intel Core i9-11900K is a 8 core processor with a clock frequency of 3.50 GHz (5.30 GHz). The processor can compute 16 threads at the same time. The Intel Core i7-11700K clocks with 3.60 GHz (5.00 GHz), has 8 CPU cores and can calculate 16 threads in parallel.
Processors with the support of artificial intelligence (AI) and machine learning (ML) can process many calculations, especially audio, image and video processing, much faster than classic processors. Algorithms for ML improve their performance the more data they have collected via software. ML tasks can be processed up to 10,000 times faster than with a classic processor.
Graphics (iGPU) integrated into the processor not only enable image output without having to rely on a dedicated graphics solution, but can also efficiently accelerate video playback.
A photo or video codec that is accelerated in hardware can greatly accelerate the working speed of a processor and extend the battery life of notebooks or smartphones when playing videos.
Up to 128 GB of memory in a maximum of 2 memory channels is supported by the Intel Core i9-11900K, while the Intel Core i7-11700K supports a maximum of 128 GB of memory with a maximum memory bandwidth of 51.2 GB/s enabled.
The Intel Core i9-11900K has a TDP of 125 W. The TDP of the Intel Core i7-11700K is 125 W. System integrators use the TDP of the processor as a guide when dimensioning the cooling solution.
The Intel Core i9-11900K has 20.00 MB cache and is manufactured in 14 nm. The cache of Intel Core i7-11700K is at 20.00 MB. The processor is manufactured in 14 nm.
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Cinebench R23 is the successor of Cinebench R20 and is also based on the Cinema 4 Suite. Cinema 4 is a worldwide used software to create 3D forms. The single-core test only uses one CPU core, the amount of cores or hyperthreading ability doesn't count.
Cinebench R23 is the successor of Cinebench R20 and is also based on the Cinema 4 Suite. Cinema 4 is a worldwide used software to create 3D forms. The multi-core test involves all CPU cores and taks a big advantage of hyperthreading.
Geekbench 5 is a cross plattform benchmark that heavily uses the systems memory. A fast memory will push the result a lot. The single-core test only uses one CPU core, the amount of cores or hyperthreading ability doesn't count.
Geekbench 5 is a cross plattform benchmark that heavily uses the systems memory. A fast memory will push the result a lot. The multi-core test involves all CPU cores and taks a big advantage of hyperthreading.
Geekbench 6 is a benchmark for modern computers, notebooks and smartphones. What is new is an optimized utilization of newer CPU architectures, e.g. based on the big.LITTLE concept and combining CPU cores of different sizes. The single-core benchmark only evaluates the performance of the fastest CPU core, the number of CPU cores in a processor is irrelevant here.
Geekbench 6 is a benchmark for modern computers, notebooks and smartphones. What is new is an optimized utilization of newer CPU architectures, e.g. based on the big.LITTLE concept and combining CPU cores of different sizes. The multi-core benchmark evaluates the performance of all of the processor's CPU cores. Virtual thread improvements such as AMD SMT or Intel's Hyper-Threading have a positive impact on the benchmark result.
Cinebench R20 is the successor of Cinebench R15 and is also based on the Cinema 4 Suite. Cinema 4 is a worldwide used software to create 3D forms. The single-core test only uses one CPU core, the amount of cores or hyperthreading ability doesn't count.
Cinebench R20 is the successor of Cinebench R15 and is also based on the Cinema 4 Suite. Cinema 4 is a worldwide used software to create 3D forms. The multi-core test involves all CPU cores and taks a big advantage of hyperthreading.
The theoretical computing performance of the internal graphics unit of the processor with simple accuracy (32 bit) in GFLOPS. GFLOPS indicates how many billion floating point operations the iGPU can perform per second.
In the Blender Benchmark 3.1, the scenes "monster", "junkshop" and "classroom" are rendered and the time required by the system is measured. In our benchmark we test the CPU and not the graphics card. Blender 3.1 was presented as a standalone version in March 2022.
Some of the CPUs listed below have been benchmarked by CPU-monkey. However the majority of CPUs have not been tested and the results have been estimated by a CPU-monkey’s secret proprietary formula. As such they do not accurately reflect the actual Passmark CPU mark values and are not endorsed by PassMark Software Pty Ltd.
The CPU-Z benchmark measures a processor's performance by measuring the time it takes the system to complete all benchmark calculations. The faster the benchmark is completed, the higher the score.
The CPU-Z benchmark measures a processor's performance by measuring the time it takes the system to complete all benchmark calculations. The faster the benchmark is completed, the higher the score.
The Cinebench 2024 benchmark is based on the Redshift rendering engine, which is also used in Maxon's 3D program Cinema 4D. The benchmark runs are each 10 minutes long to test whether the processor is limited by its heat generation.
The Multi-Core test of the Cinebench 2024 benchmark uses all cpu cores to render using the Redshift rendering engine, which is also used in Maxons Cinema 4D. The benchmark run is 10 minutes long to test whether the processor is limited by its heat generation.
Cinebench R15 is the successor of Cinebench 11.5 and is also based on the Cinema 4 Suite. Cinema 4 is a worldwide used software to create 3D forms. The single-core test only uses one CPU core, the amount of cores or hyperthreading ability doesn't count.
Cinebench R15 is the successor of Cinebench 11.5 and is also based on the Cinema 4 Suite. Cinema 4 is a worldwide used software to create 3D forms. The multi-core test involves all CPU cores and taks a big advantage of hyperthreading.
In terms of performance, processors of the Core i7 family have seldom been so close to the processors of the Core i9 family as in the 11th generation. You can quickly see this when you compare the performance in benchmarks of the Intel Core i9-11900K against the Intel Core i7-11700K. This is because Intel no longer defines 10 cores as a maximum in the 11th generation of the Core i desktop processors, but only 8.
The Intel Core i9-11900K therefore only has 8 CPU cores and thus 2 less than its direct predecessor. The Intel Core i7-11700K remains like its predecessor with 8 CPU cores.
Since the base clock of the Intel Core i7-11700K only differs by 100 MHz from that of the Intel Core i9-11900K (3.4 GHz to 3.5 GHz), and the turbo frequencies are very similar (200-300 MHz deviation in favor of the Core i9), in the end there is only a very small increase in performance for the Intel Core i9-11900K. This is around 2-3 percent compared to the Intel Core i7.
The iGPU (internal graphics) of the two processors is also identical. An Intel Iris Xe Graphics 32 (Rocket Lake S) with 32 execution units (a maximum of 96 units would be possible in the largest expansion stage) and 256 shaders is used. With a computing power of around 0.7 TFLOPS, the graphics card is not even suitable for older games. It is positive that the new AV1 video codec can be decoded in hardware by the iGPU, which significantly reduces the system load when watching AV1-encoded videos.
Both desktop processors can address a maximum of 128 GB of DDR4-3200 RAM. Two memory channels (dual-channel mode) are supported in a maximum of 4 working memory modules. The memory's ECC error correction function is not supported.
The processors support PCIe 4.0, whereby the Intel Core i9 has 20 internal lines and the Intel Core i7 has only 16 lines. So if you want to connect a fast PCIe 4.0 x4 M.2 SSD to the system, you should pay attention to a suitable mainboard chipset with the Intel Core i7.