7820X vs 7900x: Intel Core i7-7820X vs i9-7900X

Intel Core i7-7820X vs Intel Core i9-7900X: What is the difference?

53points

Intel Core i7-7820X

56points

Intel Core i9-7900X

Comparison winner

vs

66 facts in comparison

Intel Core i7-7820X

Intel Core i9-7900X

Why is Intel Core i7-7820X better than Intel Core i9-7900X?

  • 8.03% higher Cinebench R20 (single) result?
    498vs461

Why is Intel Core i9-7900X better than Intel Core i7-7820X?

  • 14.58% faster CPU speed?
    10 x 3.3GHzvs8 x 3.6GHz
  • 4 more CPU threads?
    20vs16
  • 2MB bigger L2 cache?
    10MBvs8MB
  • 23.16% higher PassMark result?
    21215vs17226
  • 2.7MB bigger L3 cache?
    13.7MBvs11MB
  • 64KB bigger L1 cache?
    320KBvs256KB
  • 19.64% higher multi-core Geekbench 5 result?
    9928vs8298
  • 11. 6 more performance per watt?
    70.9vs59.3

Which are the most popular comparisons?

Intel Core i7-7820X

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Intel Core i7-7700K

Intel Core i9-7900X

vs

AMD Ryzen 5 5600X

Intel Core i7-7820X

vs

Intel Core i7-7800X

Intel Core i9-7900X

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Intel Core i7-7700K

Intel Core i7-7820X

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Intel Core i7-8700K

Intel Core i9-7900X

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Intel Core i5-12400

Intel Core i7-7820X

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Intel Core i9-10900X

Intel Core i9-7900X

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Intel Pentium G4560

Intel Core i7-7820X

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AMD Ryzen 9 3900X

Intel Core i9-7900X

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Intel Core i9-9900K

Intel Core i7-7820X

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Intel Core i9-7960X

Intel Core i9-7900X

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Intel Core i5-12400F

Intel Core i7-7820X

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AMD Ryzen 5 4680U

Intel Core i9-7900X

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Intel Core i9-10900X

Intel Core i7-7820X

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AMD Ryzen 7 3700X

Intel Core i9-7900X

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AMD Ryzen 5 3600

Intel Core i7-7820X

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AMD Ryzen 9 3950X

Intel Core i9-7900X

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AMD Ryzen Threadripper 1920X

Price comparison

User reviews

Performance

CPU speed

8 x 3. 6GHz

10 x 3.3GHz

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

4.5GHz

4.5GHz

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 i7-7820X

✔Intel Core i9-7900X

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

13.7MB

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

1MB/core

1MB/core

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

L3 core

1.3MB/core

1.3MB/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.

Cinebench R20 (multi) result

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

Cinebench R20 (single) result

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

Geekbench 5 result (multi)

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

Geekbench 5 result (single)

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 i7-7820X)

Unknown. Help us by suggesting a value. (Intel Core i9-7900X)

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 i7-7820X)

Unknown. Help us by suggesting a value. (Intel Core i9-7900X)

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

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 i7-7820X)

Not applicable

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

GPU turbo

Unknown. Help us by suggesting a value. (Intel Core i7-7820X)

Not applicable

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 i7-7820X)

Not applicable

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 i7-7820X)

Not applicable

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 i7-7820X)

Not applicable

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

OpenGL version

Unknown. Help us by suggesting a value. (Intel Core i7-7820X)

Not applicable

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

OpenCL version

Unknown. Help us by suggesting a value. (Intel Core i7-7820X)

Unknown. Help us by suggesting a value. (Intel Core i9-7900X)

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 i7-7820X)

Not applicable

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 i7-7820X)

Not applicable

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

2666MHz

2666MHz

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

maximum memory bandwidth

Unknown. Help us by suggesting a value. (Intel Core i7-7820X)

Unknown. Help us by suggesting a value. (Intel Core i9-7900X)

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 i7-7820X)

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 i7-7820X

✖Intel Core i9-7900X

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 i7-7820X)

Unknown. Help us by suggesting a value. (Intel Core i9-7900X)

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 i7-7820X)

Unknown. Help us by suggesting a value. (Intel Core i9-7900X)

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

Features

uses multithreading

✔Intel Core i7-7820X

✔Intel Core i9-7900X

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 i7-7820X

✔Intel Core i9-7900X

AES is used to speed up encryption and decryption.

Has AVX

✔Intel Core i7-7820X

✔Intel Core i9-7900X

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 i7-7820X

✔Intel Core i9-7900X

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 i7-7820X)

Unknown.