Đánh giá i9 7900x vs i7 8700k năm 2024

- Cpu Intel Core i7 8700k được intel cho ra mắt vào quý 4 năm 2017 để thay thế cpu đang thịnh hành lúc bấy giờ là i7 7700k (4 core 8 threads). Việc intel nâng số nhân cpu của i7 8700k lên thành 6 core 12 thread đã tạo ra làn sóng mới cực hót trên thị trường công nghệ PC 2018. Cpu i7 8700k đã có lúc rất khan hiếm trên thị trường và giá thành thậm chí còn bị đẩy lên cao hơn bình thường.

- Cùng lúc này đối thủ lớn của intel là AMD tung ra thị trường 2 mã cpu là Ryzen 7 2700 và ryzen 7 2700x (8 core 16 threads) và giá thành cạnh tranh với intel đã làm hạ nhiệt cpu i7 8700k của intel xuống. Thậm chí cpu ryzen này của AMD đã chiếm một thị phần rất lớn trên tổng số PC gaming và đồ họa trong năm 2018. - Sau một thời gian ngắn nghiên cứu vào quý 4/2018 intel cho ra mắt CPU i9 9900k được nhồi thêm thành 8 core 16 thread giống cpu Ryzen 7 2700x với tốc độ max tubor rất cao : 3.6 up to 5.0 Ghz. Đây là một câu trả lời rất mạnh mẽ của intel để đáp trả lại AMD và ryzen 2700, 2700x đã hạ nhiệt hoàn toàn từ khi xuất intel i9 9900k. Dù giá thành của i9 9900k cao hơn i7 8700k và ryzen 7 2700x từ 5-6 triệu đồng.

4. Lựa chọn cpu nào để làm video 4k chuyên nghiệp?

- Với những người có tiềm lực kinh mạnh không lăn tăn nhiều đến chi phí Build máy để làm việc thì i9 9900k là một lựa chọn hoàn toàn đúng đắn và sẽ không hối hận với những gì nó mang lại. Tất nhiên việc lựa chọn các linh kiện khác đi kèm cũng hết sức quan trọng và cần phải tính toán sao cho hợp lý.

- Với những người bị giới hạn về kinh tế thì cần phải cân nhắc thật kĩ giữa 2 cpu i9 9900 và i7 8700k. Với giá thành của i9 9900k và hiệu năng nó mang lại có thực sự tốt hơn i7 8700k nhiều không? Có đáng để đầu tư không ? Chúng ta sẽ có một bài test nhanh về khả năng render video 4k của 2 cpu này ngay dưới đây.

5. Cấu hình test render video 4k đi cùng 2 cpu trên :

• Để công bằng thì chúng ta sẽ sử dụng 2 cấu hình gần giống hệt nhau để test :

- CPU i7 8700k + HFS CM 410P

- CPU i9 9900k + HFS CM 610P (Do cpu i9 9900k nóng hơn rất nhiều)

- MAIN Giga Z390 UD

- RAM Gskill 4*16Gb = 64Gb bus 3000

- SSD Samsung 860 Evo 250Gb

- VGA Colofurl GTX 1060 6GD5

- PSU Xigmatek CERBERUS 650w

- CASE Xigmatek Venom

Phần mềm test Render :

CAMTASIA 9 với các video dựng edit sẵn có chèn các hiệu ứng khá nặng và cho render độ phân giải 4k đoạn video.

6. KẾT QUẢ TEST : Chi tiết so sánh render được thể hiện qua video :

Tổng hợp kết quả :

- CPU i7 8700k : 25 phút 05 giây.

- CPU i9 9900k : 22 phút 16 giây.

i9 9900k render nhanh hơn i7 8700k ~ 15% tổng thời gian.

Kết quả trên chỉ là một phần test so sánh sức mạnh cpu. Khi test render 3dmax bằng corona hay vray thì kết quả thì i9 9900k mạnh hơn khá nhiều so với khi render video 4k. Ngoài ra đánh giá tổng quan sức mạnh cpu chúng ta cần test về khả năng dựng hình 3d, dựng hình, edit biên tập video, khả năng chơi game v.v….. Tuy nhiên đối với những người đang chỉ quan tâm với công việc làm video, dựng phim thì hi vọng kết quả trên sẽ giúp ích cho mọi người trong việc Build máy phục vụ công việc của mình.

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.

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 i7-8700 )

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

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

Performance

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.

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.

Some processors come with an unlocked multiplier which makes them easy to overclock, allowing you to gain increased performance in games and other apps.

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

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

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

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

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

Benchmarks

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

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 i7-8700 )

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

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 i7-8700 )

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

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 i7-8700 )

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.

Integrated graphics

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

GPU turbo

∅

Intel Core i9-7900X: Not applicable

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

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

DirectX version

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

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 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.

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

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

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

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.

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

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 i7-8700 )

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 i7-8700 )

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

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.

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 i7-8700 )

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

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

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 i7-8700 )

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

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

NX bit helps protect the computer from malicious attacks.

VFP version

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

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

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