I75820K vs i7 8700k: Intel Core i7-5820K vs i7-8700K

Intel Core i7-5820K vs Intel Core i7-8700K: What is the difference?

46points

Intel Core i7-5820K

59points

Intel Core i7-8700K

Comparison winner

vs

66 facts in comparison

Intel Core i7-5820K

Intel Core i7-8700K

Why is Intel Core i7-5820K better than Intel Core i7-8700K?

• 3MB bigger L3 cache?
  15MBvs12MB
• 25.3GB/s more memory bandwidth?
  68GB/svs42.7GB/s
• 2 more memory channels?
  4vs2
• 0.5MB/core more L3 cache per core?
  2.5MB/corevs2MB/core

Why is Intel Core i7-8700K better than Intel Core i7-5820K?

• 12.12% faster CPU speed?
  6 x 3.7GHzvs6 x 3.3GHz
• 533MHz higher ram speed?
  2666MHzvs2133MHz
• 33.2°C higher maximum operating temperature?
  100°Cvs66.8°C
• 8nm smaller semiconductor size?
  14nmvs22nm
• 1. 1GHz higher turbo clock speed?
  4.7GHzvs3.6GHz
• 45W lower TDP?
  95Wvs140W
• 25.87% higher PassMark result?
  16270vs12926
• Has integrated graphics?

Which are the most popular comparisons?

Intel Core i7-5820K

vs

Intel Core i7-7700K

Intel Core i7-8700K

vs

AMD Ryzen 5 5600X

Intel Core i7-5820K

vs

Intel Core i5-9400F

Intel Core i7-8700K

vs

Intel Core i7-9700K

Intel Core i7-5820K

vs

AMD Ryzen 5 3600

Intel Core i7-8700K

vs

Intel Core i5-9600K

Intel Core i7-5820K

vs

Intel Core i7-5960X

Intel Core i7-8700K

vs

AMD Ryzen 5 3600

Intel Core i7-5820K

vs

Intel Core i7-6700

Intel Core i7-8700K

vs

Intel Core i9-9900K

Intel Core i7-5820K

vs

Intel Core i7-4790K

Intel Core i7-8700K

vs

Intel Core i5-10400

Intel Core i7-5820K

vs

Intel Core i7-6950X

Intel Core i7-8700K

vs

AMD Ryzen 5 5500U

Intel Core i7-5820K

vs

AMD Ryzen 5 5600X

Intel Core i7-8700K

vs

Intel Core i7-13700K

Intel Core i7-5820K

vs

Intel Core i7-6900k

Intel Core i7-8700K

vs

Intel Core i5-12400

Intel Core i7-5820K

vs

AMD Ryzen 7 5800X

Intel Core i7-8700K

vs

AMD Ryzen 5 5600G

Price comparison

Cheap alternatives

User reviews

Overall Rating

Intel Core i7-5820K

0 User reviews

Intel Core i7-5820K

0. 0/10

0 User reviews

Intel Core i7-8700K

1 User reviews

Intel Core i7-8700K

10.0/10

1 User reviews

Features

Value for money

No reviews yet

 

10.0/10

1 votes

Gaming

No reviews yet

 

10.0/10

1 votes

Performance

No reviews yet

 

10.0/10

1 votes

Reliability

No reviews yet

 

10.0/10

1 votes

Energy efficiency

No reviews yet

 

10.0/10

1 votes

Performance

CPU speed

6 x 3.3GHz

6 x 3.7GHz

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

More threads result in faster performance and better multitasking.

turbo clock speed

3.6GHz

4.7GHz

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 i7-5820K

✔Intel Core i7-8700K

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

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

L3 cache

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

L1 cache

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

L2 core

0.25MB/core

0.25MB/core

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

L3 core

2.5MB/core

2MB/core

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

Benchmarks

PassMark result

This benchmark measures the performance of the CPU using multiple threads.

PassMark result (single)

This benchmark measures the performance of the CPU using a single thread.

Geekbench 5 result (multi)

Unknown. Help us by suggesting a value. (Intel Core i7-5820K)

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

Geekbench 5 is a cross-platform benchmark that measures a processor’s multi-core performance. (Source: Primate Labs, 2023)

Cinebench R20 (multi) result

Unknown. Help us by suggesting a value. (Intel Core i7-5820K)

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

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 i7-5820K)

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

Cinebench R20 is a benchmark tool that measures a CPU’s single-core performance by rendering a 3D scene.

Geekbench 5 result (single)

Unknown. Help us by suggesting a value. (Intel Core i7-5820K)

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

Geekbench 5 is a cross-platform benchmark that measures a processor’s single-core performance. (Source: Primate Labs, 2023)

Blender (bmw27) result

Unknown. Help us by suggesting a value. (Intel Core i7-5820K)

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

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.

Blender (classroom) result

Unknown. Help us by suggesting a value. (Intel Core i7-5820K)

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

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

performance per watt

Unknown. Help us by suggesting a value. (Intel Core i7-5820K)

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

This means the CPU is more efficient, giving a greater amount of performance for each watt of power used.

Integrated graphics

GPU clock speed

Unknown. Help us by suggesting a value. (Intel Core i7-5820K)

350MHz

The graphics processing unit (GPU) has a higher clock speed.

GPU turbo

Unknown. Help us by suggesting a value. (Intel Core i7-5820K)

1200MHz

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 i7-5820K)

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

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

supported displays

Unknown. Help us by suggesting a value. (Intel Core i7-5820K)

Using multiple displays you can create a larger workspace, making it easier to work across multiple apps.

DirectX version

Unknown. Help us by suggesting a value. (Intel Core i7-5820K)

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

OpenGL version

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

OpenCL version

Unknown. Help us by suggesting a value. (Intel Core i7-5820K)

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

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 i7-5820K)

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

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 i7-5820K)

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

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

2133MHz

2666MHz

It can support faster memory, which will give quicker system performance.

maximum memory bandwidth

68GB/s

42.7GB/s

This is the maximum rate that data can be read from or stored into memory.

DDR memory version

Unknown. Help us by suggesting a value. (Intel Core i7-5820K)

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.

memory channels

More memory channels increases the speed of data transfer between the memory and the CPU.

maximum memory amount

The maximum amount of memory (RAM) supported.

bus transfer rate

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

Supports ECC memory

✖Intel Core i7-5820K

✖Intel Core i7-8700K

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 i7-5820K)

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

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 i7-5820K)

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

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

Features

uses multithreading

✔Intel Core i7-5820K

✔Intel Core i7-8700K

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.

Has AES

✔Intel Core i7-5820K

✔Intel Core i7-8700K

AES is used to speed up encryption and decryption.

Has AVX

✔Intel Core i7-5820K

✔Intel Core i7-8700K

AVX is used to help speed up calculations in multimedia, scientific and financial apps, as well as improving Linux RAID software performance.

SSE version

SSE is used to speed up multimedia tasks such as editing an image or adjusting audio volume. Each new version contains new instructions and improvements.

Has F16C

✔Intel Core i7-5820K

✔Intel Core i7-8700K

F16C is used to speed up tasks such as adjusting the contrast of an image or adjusting volume.

bits executed at a time

Unknown. Help us by suggesting a value. (Intel Core i7-5820K)

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

NEON provides acceleration for media processing, such as listening to MP3s.

Has MMX

✔Intel Core i7-5820K

✔Intel Core i7-8700K

MMX is used to speed up tasks such as adjusting the contrast of an image or adjusting volume.

Has TrustZone

✖Intel Core i7-5820K

✖Intel Core i7-8700K

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 i7-5820K)

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

The CPU can decode more instructions per clock (IPC), meaning that the CPU performs better

Price comparison

Which are the best CPUs?

i7-5820K vs i7-8700K — Red Dead Redemption 2 with GTX 1080 Ti Benchmarks 1080p, 1440p, Ultrawide, 4K Comparison

GTX 1080 Ti with

Intel Core i7-5820K @ 3. 30GHz

Red Dead Redemption 2

GTX 1080 Ti with

Intel Core i7-8700K @ 3.70GHz

---

i7-5820K
i7-8700K

Multi-Thread Performance

12994 Pts

15970 Pts

Single-Thread Performance

2021 Pts

2703 Pts

Red Dead Redemption 2

i7-5820K vs i7-8700K in Red Dead Redemption 2 using GTX 1080 Ti — CPU Performance comparison at Ultra, High, Medium, and Low Quality Settings with 1080p, 1440p, Ultrawide, 4K resolutions

i7-5820K
i7-8700K

---

Ultra Quality

Resolution	Frames Per Second
1080p	53.7 FPS
1080p	63.5 FPS
1440p	43.9 FPS
1440p	50.3 FPS
2160p	27.9 FPS
2160p	32.0 FPS
w1440p	38.4 FPS
w1440p	44. 0 FPS

High Quality

Resolution	Frames Per Second
1080p	93.0 FPS
1080p	107.3 FPS
1440p	78.2 FPS
1440p	87.9 FPS
2160p	52.9 FPS
2160p	59.5 FPS
w1440p	69.7 FPS
w1440p	78.4 FPS

Medium Quality

Resolution	Frames Per Second
1080p	132.2 FPS
1080p	151.0 FPS
1440p	112.5 FPS
1440p	125.5 FPS
2160p	77.8 FPS
2160p	87.1 FPS
w1440p	101. 0 FPS
w1440p	112.7 FPS

Low Quality

Resolution	Frames Per Second
1080p	210.7 FPS
1080p	238.6 FPS
1440p	181.1 FPS
1440p	200.7 FPS
2160p	127.8 FPS
2160p	142.1 FPS
w1440p	163.6 FPS
w1440p	181.4 FPS

i7-5820K

• The i7-5820K has higher Level 3 Cache. This is useful when you have substantial multiprocessing workloads, many computationally intense simultaneous processes. More likely on a server, less on a personally used computer for interactive desktop workloads.

i7-8700K

• For some games, a cpu with a higher clock speed, or in a technical name IPC (Instructions per clock), has better results than other CPU’s with higher core count and lower core speed.
• The i7-8700K is more power efficient and generates less heat.
• The i7-8700K has a higher turbo clock boost. Turbo Boost is a CPU feature that will run CPU clock speed faster than its base clock, if certain conditions are present. It will enable older software that runs on fewer cores, to perform better on newer hardware. Since games are software too, it is also applicable to them.
• The i7-8700K has a smaller process size. The faster a transistor can toggle on and off, the faster it can do work. And transistors that turn on and off with less energy are more efficient, reducing the operating power, or “dynamic power consumption,” required by a processor.

Compare i7-5820K vs i7-8700K specifications

i7-5820K vs i7-8700K Architecture

	i7-5820K	i7-8700K
Codename	Haswell-E	Coffee Lake
Generation	Core i7 (Haswell EE)	Core i7 (Coffee Lake)
Market	Desktop	Desktop
Memory Support	DDR4	DDR4
Part#	SR20S	SR3QR
Production Status	Active	Active
Released	Sep 2014	Oct 2017

i7-5820K vs i7-8700K Cache

	i7-5820K	i7-8700K
Cache L1	64K (per core)	64K (per core)
Cache L2	256K (per core)	256K (per core)
Cache L3	15MB (shared)	12MB (shared)

i7-5820K vs i7-8700K Cores

	i7-5820K	i7-8700K
# of Cores	6	6
# of Threads	12	12
Integrated Graphics	N/A	UHD Graphics 630
SMP # CPUs	1	1

i7-5820K vs i7-8700K Features

	i7-5820K	i7-8700K
	MMX SSE SSE2 SSE3 SSSE3 SSE4.