CPUとGPUの違い

CPUとGPUの違い

Whether used for deep learning applications, massively parallel processing, intensive 3D gaming, or other demanding workloads, today’s systems are expected to perform more tasks than ever before. The central processing unit (CPU) and the graphics processing unit (GPU) have very different roles. Then CPU vs GPU, what are the differences?

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    What is a CPU?

    CPU
    CPU

    A CPU is made up of millions of transistors, can have multiple processing cores, and is often referred to as the brain of the computer. It is an essential component of all modern computing systems because it executes the commands and processes required by the computer and operating system. The CPU is also important in determining how fast programs run, from web browsing to building spreadsheets.

    What is a GPU?

    GPU
    GPU

    A GPU is a processor made up of many smaller, more specialized cores. When a processing task is divided and executed among multiple cores, working together, these cores can deliver powerful performance.

    What is the difference between CPU and GPU?

    CPUs and GPUs have a lot in common. They are both important computing engines. Both are chip-based microprocessors. And, both process data. But CPUs and GPUs have different architectures and are built for different purposes.

    CPUs are suitable for a wide range of workloads, especially those with high latency and performance-per-core requirements. As a powerful execution engine, the CPU focuses its relatively small number of cores on a single task and completes it quickly. This makes it particularly suitable for handling types of work ranging from serial calculations to database operations.

    GPUs were originally developed as ASICs designed to accelerate specific 3D rendering tasks. Over time, these fixed-function engines became more programmable and flexible. Although graphics processing and today’s increasingly visually realistic top-level games are still the primary function of the GPU, at the same time, it has also evolved into a more general-purpose parallel processor capable of handling an increasing number of applications.

    CPU vs GPU (What's the Difference)

    What is integrated graphics?

    Integrated or shared graphics are built into the same chip as the CPU. Some CPUs can have a built-in GPU, eliminating the need to rely on a dedicated or discrete graphics card.

    Integrated Graphics
    Integrated Graphics

    Integrated graphics processors offer several advantages. Integration into the CPU has space, cost and energy efficiency advantages over a discrete graphics processor. They process graphics card-related data and instructions for common tasks such as web browsing, 4K movie streaming, and casual gaming.

    This method is most commonly used in compact and energy-efficient devices such as laptops, tablets, smartphones, and some desktops.

    Accelerating deep learning and artificial intelligence

    Today’s GPUs run an increasing number of workloads, such as deep learning and artificial intelligence (AI). GPUs or other accelerators are suitable for deep learning training using neural network layers or on large data sets such as 2D images.

    The deep learning algorithm is adapted to use GPU accelerated methods. Through acceleration, these algorithms can significantly improve performance and reduce the training time for practical problems to a feasible range.

    CPUs and the software libraries that run on them have evolved over time, and their ability to perform deep learning tasks has greatly improved. For example, in the latest Intel® Xeon® Scalable processors, the deep learning performance of the CPU system can be improved through extensive software optimization work and the addition of dedicated AI hardware such as Intel® Deep Learning Acceleration (Intel® DL Boost).

    For many applications, such as HD image-based, 3D image-based and non-image-based deep learning on language, text and time series data, CPUs can shine. For complex models or deep learning applications (for example, 2D image detection), CPUs can support much larger memory capacities than today’s most powerful GPUs.

    The combination of CPU and GPU and ample RAM provide an excellent testbed for deep learning and artificial intelligence.

    よくある質問-PCBについて

    A CPU is made up of millions of transistors, can have multiple processing cores, and is often referred to as the brain of the computer. It is an essential component of all modern computing systems because it executes the commands and processes required by the computer and operating system. The CPU is also important in determining how fast programs run, from web browsing to building spreadsheets.

    A GPU is a processor made up of many smaller, more specialized cores. When a processing task is divided and executed among multiple cores, working together, these cores can deliver powerful performance.

    The CPU handles all the tasks required for all software on the server to run correctly. A GPU, on the other hand, supports the CPU to perform concurrent calculations.

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