Intel Core i7-8700K vs Intel Core i9-9900K: What is the difference?
48points

Intel Core i7-8700K

53points

Intel Core i9-9900K

Comparison winner
Intel Core i9-9900K
vs
vs

63 facts in comparison

Intel Core i7-8700K vs Intel Core i9-9900K

Intel Core i7-8700K
Intel Core i9-9900K

Why is Intel Core i7-8700K better than Intel Core i9-9900K?

Why is Intel Core i9-9900K better than Intel Core i7-8700K?

  • 29.73% faster CPU speed
    ?

    8 x 3.6 GHzvs6 x 3.7 GHz
  • 4 threads more CPU threads
    ?

    16 threadsvs12 threads
  • 0.3GHz higher turbo clock speed
    ?

    5GHzvs4.7GHz
  • 34.28% higher PassMark result
    ?

    18351vs13666
  • 0.5 MB bigger L2 cache
    ?

    2 MBvs1.5 MB
  • 4 MB bigger L3 cache
    ?

    16 MBvs12 MB
  • 128 KB bigger L1 cache
    ?

    512 KBvs384 KB
  • 7.28% higher PassMark result (single)
    ?

    2933vs2734

Price comparison

Intel Core i9-9900K

Intel Core i9-9900K Desktop Processor 8 Cores up to 5.0GHz Unlocked LGA1151 300 Series 95W (BX806849900K)...Intel Core i9-9900K Desktop Processor 8 Cores up to 5.0GHz Unlocked LGA1151 300 Series 95W (BX806849900K)
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New Original Intel Core i9-9900K BOX Desktop Processor 8-Cores up to 5.0 GHz Turbo unlocked LGA1151 300 S...New Original Intel Core i9-9900K BOX Desktop Processor 8-Cores up to 5.0 GHz Turbo unlocked LGA1151 300 Series 95W i9 9900K CPU
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Intel Core i9 9900K Processor with Thermal Grease i9 9th Generation CPU i9 9900 with Thermal Paste PC Par...Intel Core i9 9900K Processor with Thermal Grease i9 9th Generation CPU i9 9900 with Thermal Paste PC Parts 2 Years Warranty
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Cheap alternatives

User reviews

Overall rating

Intel Core i7-8700K
9.7
3 User reviews
Intel Core i7-8700K
9.7/10
3 User reviews
Intel Core i9-9900K
9.0
5 User reviews
Intel Core i9-9900K
9.0/10
5 User reviews

Features

Value for money

10.0/10
3 votes
8.8/10
5 votes

Gaming

9.0/10
3 votes
9.4/10
5 votes

Performance

9.0/10
3 votes
9.6/10
5 votes

Reliability

9.3/10
3 votes
9.2/10
5 votes

Energy efficiency

9.0/10
3 votes
9.0/10
5 votes

Comments

bb

bb

2 years ago

10 / 10

Very good, got it for 120€

bb

bb

2 years ago

10 / 10

1 users found this helpful
OKoMe

OKoMe

2 months ago

9 / 10

Just right for light gamers or those who do only light game work.

OKoMe

OKoMe

2 months ago

9 / 10

In an environment with i7-8700k, RX590, 16G RAM, WXGA60FPS, I did not feel any stress.

Pros

  • Good value for money.
  • Still capable.

Cons

  • It may struggle with high settings and high quality.
1 users found this helpful
Brian S

Brian S

11 months ago

10 / 10

Handles everything.

Brian S

Brian S

11 months ago

10 / 10

I play heavy performance games like Starcraft2 on full settings, Space engineers, and KSP. With this CPU I NEVER have lag and always get snappy performance. Slightly energy consuming but the best performance imaginable.

Pros

  • Snappy performance
  • Handles all PC stress tests I throw at it
  • Lots of threads
  • More turbo than you will ever need
  • Never lags
  • Great for gamers
  • Give more than you even have to pay

Cons

  • Energy consumption slightly high
  • Not completely reliable. Has randome glitches
0 users found this helpful

General info

Type

Desktop

Desktop

The market that the CPU is designed for.
CPU socket

LGA 1151

LGA 1151

The CPU socket/s supported.
Chipset

Z390, Z370, Q370, H370, B365, B360, H310

B365, Z390, Q370, H370, B360, H310, Z370

The motherboard chipset/s supported.
Has integrated graphics
Intel Core i7-8700K
Intel Core i9-9900K
With integrated graphics you don’t need to buy a separate graphics card.
Small semiconductors provide better performance and reduced power consumption. Chipsets with a higher number of transistors, semiconductor components of electronic devices, offer more computational power. A small form factor allows more transistors to fit on a chip, therefore increasing its performance.
The thermal design power (TDP) is the maximum amount of power the cooling system needs to dissipate. A lower TDP typically means that it consumes less power.
CPU temperature

100 °C

100 °C

If the CPU exceeds the maximum operating temperature then problems such as random resets can occur.
Peripheral Component Interconnect Express (PCIe) is a high-speed interface standard for connecting components, such as graphics cards and SSDs, to a motherboard. Newer versions can support more bandwidth and deliver better performance.
number of transistors

Unknown. Help us by suggesting a value. (Intel Core i7-8700K)

Unknown. Help us by suggesting a value. (Intel Core i9-9900K)

A higher transistor count generally indicates a newer, more powerful processor.

Performance

CPU speed

6 x 3.7 GHz

8 x 3.6 GHz

The CPU speed indicates how many processing cycles per second can be executed by a CPU, considering all of its cores (processing units). It is calculated by adding the clock rates of each core or, in the case of multi-core processors employing different microarchitectures, of each group of cores.
CPU threads

12 threads

16 threads

More threads result in faster performance and better multitasking.
When the CPU is running below its limitations, it can boost to a higher clock speed in order to give increased performance.
Has an unlocked multiplier
Intel Core i7-8700K
Intel Core i9-9900K
Some processors come with an unlocked multiplier which makes them easy to overclock, allowing you to gain increased performance in games and other apps.
L2 cache

1.5 MB

2 MB

A larger L2 cache results in faster CPU and system-wide performance.
L3 cache

12 MB

16 MB

A larger L3 cache results in faster CPU and system-wide performance.
L1 cache

384 KB

512 KB

A larger L1 cache results in faster CPU and system-wide performance.
L2 core

0.25 MB/core

0.25 MB/core

More data can be stored in the L2 cache for access by each core of the CPU.
L3 core

2 MB/core

2 MB/core

More data can be stored in the L3 cache for access by each core of the CPU.

Benchmarks

PassMark result

13666

18351

This benchmark measures the performance of the CPU using multiple threads.
This benchmark measures the performance of the CPU using a single thread.
Cinebench R20 (multi) result

Unknown. Help us by suggesting a value. (Intel Core i7-8700K)

4995

Cinebench R20 is a benchmark tool that measures a CPU's multi-core performance by rendering a 3D scene.
Cinebench R20 (single) result

Unknown. Help us by suggesting a value. (Intel Core i7-8700K)

518

Cinebench R20 is a benchmark tool that measures a CPU's single-core performance by rendering a 3D scene.
Geekbench 6 is a cross-platform benchmark that measures a processor's multi-core performance. (Source: Primate Labs, 2024)
Geekbench 6 is a cross-platform benchmark that measures a processor's single-core performance. (Source: Primate Labs, 2024)
Geekbench 5 result (multi)

Unknown. Help us by suggesting a value. (Intel Core i7-8700K)

Unknown. Help us by suggesting a value. (Intel Core i9-9900K)

Geekbench 5 is a cross-platform benchmark that measures a processor's multi-core performance. (Source: Primate Labs, 2024)
Geekbench 5 result (single)

Unknown. Help us by suggesting a value. (Intel Core i7-8700K)

Unknown. Help us by suggesting a value. (Intel Core i9-9900K)

Geekbench 5 is a cross-platform benchmark that measures a processor's single-core performance. (Source: Primate Labs, 2024)
Blender (bmw27) result

Unknown. Help us by suggesting a value. (Intel Core i7-8700K)

164.2 seconds

The Blender (bmw27) benchmark measures the performance of a processor by rendering a 3D scene. More powerful processors can render the scene in less time.

Integrated graphics

GPU clock speed

350 MHz

350 MHz

The clock speed of the graphics processing unit (GPU).
GPU turbo

1200 MHz

1200 MHz

When the GPU is running below its limitations, it can boost to a higher clock speed in order to give increased performance.
GPU execution units

Unknown. Help us by suggesting a value. (Intel Core i7-8700K)

24

A graphics processing unit (GPU) with a greater number of execution units can deliver better graphics.
DirectX version

DirectX 12

DirectX 12

DirectX is used in video games, with newer versions supporting better graphics and features. The latest version is DirectX 12 Ultimate, which includes support for ray tracing, mesh shaders, and variable rate shading (VRS).
Using multiple displays you can create a larger workspace, making it easier to work across multiple apps.
OpenGL is used in games, with newer versions supporting better graphics.
OpenCL version

Unknown. Help us by suggesting a value. (Intel Core i7-8700K)

3

Some apps use OpenCL to apply the power of the graphics processing unit (GPU) for non-graphical computing. Newer versions introduce more functionality and better performance.
texture mapping units (TMUs)

Unknown. Help us by suggesting a value. (Intel Core i7-8700K)

24

TMUs take textures and map them to the geometry of a 3D scene. More TMUs will typically mean that texture information is processed faster.
render output units (ROPs)

Unknown. Help us by suggesting a value. (Intel Core i7-8700K)

3

The ROPs are responsible for some of the final steps of the rendering process, writing the final pixel data to memory and carrying out other tasks such as anti-aliasing to improve the look of graphics.

Memory

RAM speed (max)

2666 MHz

2666 MHz

The maximum speed of RAM that is supported by the CPU.
maximum memory bandwidth

42.7 GB/s

41.6 GB/s

This is the maximum rate that data can be read from or stored into memory.
DDR (Double Data Rate) memory is the most common type of RAM. Newer versions of DDR memory support higher maximum speeds and are more energy-efficient.
More memory channels increases the speed of data transfer between the memory and the CPU.
The maximum amount of memory (RAM) supported.
bus transfer rate

8 GT/s

8 GT/s

The bus is responsible for transferring data between different components of a computer or device.
Supports ECC memory
Intel Core i7-8700K
Intel Core i9-9900K
Error-correcting code memory can detect and correct data corruption. It is used when is it essential to avoid corruption, such as scientific computing or when running a server.
eMMC version

Unknown. Help us by suggesting a value. (Intel Core i7-8700K)

Unknown. Help us by suggesting a value. (Intel Core i9-9900K)

A higher version of eMMC allows faster memory interfaces, having a positive effect on the performance of a device. For example, when transferring files from your computer to the internal storage over USB.
bus speed

Unknown. Help us by suggesting a value. (Intel Core i7-8700K)

Unknown. Help us by suggesting a value. (Intel Core i9-9900K)

The bus is responsible for transferring data between different components of a computer or device.

Features

instruction sets

SSE 4.2, SSE 4.1, AVX, AES, FMA3, F16C, MMX

SSE 4.2, SSE 4.1, AVX, AES, FMA3, F16C, MMX

Instruction sets are sets of codes that the CPU runs for certain functions.
uses multithreading
Intel Core i7-8700K
Intel Core i9-9900K
Multithreading technology (such as Intel's Hyperthreading or AMD's Simultaneous Multithreading) provides increased performance by splitting each of the processor's physical cores into virtual cores, also known as threads. This way, each core can run two instruction streams at once.
bits executed at a time

Unknown. Help us by suggesting a value. (Intel Core i7-8700K)

Unknown. Help us by suggesting a value. (Intel Core i9-9900K)

NEON provides acceleration for media processing, such as listening to MP3s.
Has TrustZone
Intel Core i7-8700K
Intel Core i9-9900K
A technology integrated into the processor to secure the device for use with features such as mobile payments and streaming video using digital rights management (DRM).
front-end width

Unknown. Help us by suggesting a value. (Intel Core i7-8700K)

Unknown. Help us by suggesting a value. (Intel Core i9-9900K)

The CPU can decode more instructions per clock (IPC), meaning that the CPU performs better
Has NX bit
Intel Core i7-8700K
Intel Core i9-9900K
NX bit helps protect the computer from malicious attacks.
VFP version

Unknown. Help us by suggesting a value. (Intel Core i7-8700K)

Unknown. Help us by suggesting a value. (Intel Core i9-9900K)

Vector Floating-Point (VFP) is used by the processor to deliver increased performance in areas such as digital imaging.

Miscellaneous

DirectX is used in games, with newer versions supporting better graphics.

Price comparison

Intel Core i9-9900K

Intel Core i9-9900K Desktop Processor 8 Cores up to 5.0GHz Unlocked LGA1151 300 Series 95W (BX806849900K)...Intel Core i9-9900K Desktop Processor 8 Cores up to 5.0GHz Unlocked LGA1151 300 Series 95W (BX806849900K)
amazon logo
New Original Intel Core i9-9900K BOX Desktop Processor 8-Cores up to 5.0 GHz Turbo unlocked LGA1151 300 S...New Original Intel Core i9-9900K BOX Desktop Processor 8-Cores up to 5.0 GHz Turbo unlocked LGA1151 300 Series 95W i9 9900K CPU
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Intel Core i9 9900K Processor with Thermal Grease i9 9th Generation CPU i9 9900 with Thermal Paste PC Par...Intel Core i9 9900K Processor with Thermal Grease i9 9th Generation CPU i9 9900 with Thermal Paste PC Parts 2 Years Warranty
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