Intel Core i9-9900K vs Intel Core i7-6700K

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CPU comparison with benchmarks

-VS-

CPU lineage

Intel Core i9-9900K or Intel Core i9-9900K – which processor offers superior performance? In this comparison, we examine disparities and assess which of these two CPUs outperforms the other. We delve into technical specifications and benchmark outcomes.
The Intel Core i9-9900K features 8 processor cores and has the capability to manage 16 threads concurrently.
It was released in Q4/2018 and belongs to the 9 generation of the Intel Core i9 series.
To use the Intel Core i9-9900K, you'll need a motherboard with a LGA 1151-2 socket.
The Intel Core i7-6700K features 4 processor cores and has the capability to manage 8 threads concurrently.
It was released in Q3/2015 and belongs to the 6 generation of the Intel Core i7 series.
To use the Intel Core i7-6700K, you'll need a motherboard with a LGA 1151 socket.
Intel Core i 9000 Group Intel Core i 6000
9 Generation 6
Desktop / Server Segment Desktop / Server
Intel Core i9-9900K Name Intel Core i7-6700K
Intel Core i9 Family Intel Core i7
 
 

CPU Cores and Base Frequency

The Intel Core i9-9900K has 8 CPU cores and can calculate 16 threads in parallel.
The clock frequency of the Intel Core i9-9900K is 3.6 GHz
and turbo frequency for one core is 5.0 GHz.
The number of CPU cores greatly affects the speed of the processor and is an important performance indicator.
The Intel Core i7-6700K has 4 CPU cores and can calculate 8 threads in parallel.
The clock frequency of the Intel Core i7-6700K is 4.0 GHz
and turbo frequency for one core is 4.2 GHz.
16 Threads 8
8x Cores 4x
8 CPU Cores 4
normal Core architecture normal
Yes Hyperthreading Yes
Yes Overclocking Yes
5.0 GHz Turbo Frequency (1 core) 4.2 GHz
3.6 GHz Frequency 4.0 GHz
4.7 GHz Turbo Frequency (all cores) 4.0 GHz
 
 

Internal Graphics

The Intel Core i9-9900K has integrated graphics, called iGPU for short.
Specifically, the Intel Core i9-9900K uses the Intel UHD Graphics 630, which has 192 texture shaders
and 24 execution units.
The iGPU uses the system's main memory as graphics memory and sits on the processor's die.
The Intel Core i7-6700K has integrated graphics, called iGPU for short.
Specifically, the Intel Core i7-6700K uses the Intel HD Graphics 530, which has 192 texture shaders
192 Shaders 192
Q4/2017 Release date Q3/2015
14 nm Technology 14 nm
12 Direct X 12
64.0 GB Max. GPU Memory 32.0 GB
-- Max. displays --
24 Execution units 24
0.35 GHz GPU frequency 0.35 GHz
9.5 Generation 9
1.2 GHz GPU (Turbo) 1.15 GHz
Intel UHD Graphics 630 GPU name Intel HD Graphics 530
 
 

Artificial Intelligence and Machine Learning

-- AI specifications --
-- AI hardware --
 
 

Hardware codec support

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.
Decode / Encode VP8 Decode / Encode
Decode VC-1 Decode
Decode / Encode JPEG Decode / Encode
No AV1 No
Decode / Encode h265 / HEVC (8 bit) Decode / Encode
Decode / Encode AVC Decode / Encode
Decode / Encode h264 Decode / Encode
Decode / Encode VP9 Decode
Decode / Encode h265 / HEVC (10 bit) Decode
 
 

Memory & PCIe

The processor supports a maximum memory capacity of 128.0 GB distributed across 2 memory channels. It offers a peak memory bandwidth of 39.5 GB/s. Both the type and quantity of memory can have a substantial impact on the overall system performance.
The processor supports a maximum memory capacity of 64.0 GB distributed across 2 memory channels. It offers a peak memory bandwidth of 34.1 GB/s. Both the type and quantity of memory can have a substantial impact on the overall system performance.
pci PCIe pci
Yes AES-NI Yes
DDR4-2666 Memory type DDR4-2133, DDR3-1866
No ECC No
128.0 GB Max. Memory 64.0 GB
2 Memory channels 2
39.5 GB/s Bandwidth 34.1 GB/s
 
 

Thermal Management

The processor has a thermal design power (TDP) of 95 W watts.
TDP indicates the cooling solution needed to effectively manage the processor's heat. It generally provides an approximate indication of the actual power consumption of the CPU itself.
The processor has a thermal design power (TDP) of 91 W watts.
95 W TDP (PL1 / PBP) 91 W
100 °C Tjunction max --
 
 

Technical details

The Intel Core i9-9900K is manufactured using a 14 nm process.
A smaller manufacturing process indicates a more contemporary and energy-efficient CPU.
In total, this processor boasts a generous 16.0 MB cache.
A substantial cache can significantly enhance the processor's performance, particularly in scenarios like gaming.
The Intel Core i7-6700K is manufactured using a 14 nm process.
In total, this processor boasts a generous 8.0 MB cache.
Q4/2018 Release date Q3/2015
VT-x, VT-x EPT, VT-d Virtualization VT-x, VT-x EPT, VT-d
SSE4.1, SSE4.2, AVX2 ISA extensions SSE4.1, SSE4.2, AVX2
14 nm Technology 14 nm
Monolithic Chip design Monolithic
650 $ Release price 420 $
Coffee Lake S Refresh Architecture Skylake S
16.0 MB L3-Cache 8.0 MB
Windows 10, Linux, Windows 11 Operating systems Windows 10, Linux
Technical data sheet Documents Technical data sheet
x86-64 (64 bit) Instruction set (ISA) x86-64 (64 bit)
-- Part Number --
LGA 1151-2 Socket LGA 1151
0 bytes L2-Cache 0 bytes
 
 

Benchmarks

Geekbench 3, 64bit (Multi-Core)

Intel Core i9-9900K
8C 16T @ 3.6 GHz
35769
35769
Intel Core i7-6700K
4C 8T @ 4.0 GHz
17028
17028

Cinebench R23 (Multi-Core)

Intel Core i9-9900K
8C 16T @ 3.6 GHz
12812
12812
Intel Core i7-6700K
4C 8T @ 4.0 GHz
5640
5640

V-Ray CPU-Render Benchmark

Intel Core i9-9900K
8C 16T @ 3.6 GHz
9155
9155
Intel Core i7-6700K
4C 8T @ 4.0 GHz
4407
4407

Geekbench 5, 64bit (Multi-Core)

Intel Core i9-9900K
8C 16T @ 3.6 GHz
8779
8779
Intel Core i7-6700K
4C 8T @ 4.0 GHz
4459
4459

Geekbench 6 (Multi-Core)

Intel Core i9-9900K
8C 16T @ 3.6 GHz
8182
8182
Intel Core i7-6700K
4C 8T @ 4.0 GHz
4665
4665

Geekbench 3, 64bit (Single-Core)

Intel Core i9-9900K
8C 16T @ 3.6 GHz
6250
6250
Intel Core i7-6700K
4C 8T @ 4.0 GHz
4757
4757

CPU-Z Benchmark 17 (Multi-Core)

Intel Core i9-9900K
8C 16T @ 3.6 GHz
5502
5502
Intel Core i7-6700K
4C 8T @ 4.0 GHz
2313
2313

Cinebench R20 (Multi-Core)

Intel Core i9-9900K
8C 16T @ 3.6 GHz
4995
4995
Intel Core i7-6700K
4C 8T @ 4.0 GHz
2059
2059

Cinebench R15 (Multi-Core)

Intel Core i9-9900K
8C 16T @ 3.6 GHz
2245
2245
Intel Core i7-6700K
4C 8T @ 4.0 GHz
888
888

Geekbench 6 (Single-Core)

Intel Core i9-9900K
8C 16T @ 3.6 GHz
1650
1650
Intel Core i7-6700K
4C 8T @ 4.0 GHz
1347
1347

Geekbench 5, 64bit (Single-Core)

Intel Core i9-9900K
8C 16T @ 3.6 GHz
1342
1342
Intel Core i7-6700K
4C 8T @ 4.0 GHz
1151
1151

Cinebench R23 (Single-Core)

Intel Core i9-9900K
8C 16T @ 3.6 GHz
1294
1294
Intel Core i7-6700K
4C 8T @ 4.0 GHz
1124
1124

Cinebench R20 (Single-Core)

Intel Core i9-9900K
8C 16T @ 3.6 GHz
518
518
Intel Core i7-6700K
4C 8T @ 4.0 GHz
421
421

Blender 2.81 (bmw27)

Intel Core i7-6700K
4C 8T @ 4.0 GHz
369.3
369.3
Intel Core i9-9900K
8C 16T @ 3.6 GHz
163.8
163.8

Cinebench R15 (Single-Core)

Intel Core i9-9900K
8C 16T @ 3.6 GHz
219
219
Intel Core i7-6700K
4C 8T @ 4.0 GHz
180
180

Blender 3.1 Benchmark

Intel Core i9-9900K
8C 16T @ 3.6 GHz
171
171
Intel Core i7-6700K
4C 8T @ 4.0 GHz
82
82