So sánh chip cortex-a8 và apple a8

Chip Apple A9 là bộ vi xử lý lõi kép mới nhất của Apple

Apple A9 là thế hệ chip xử lý 64-bit thứ ba của "Táo Khuyết" và họ vẫn trung thành với kiến trúc lõi kép trên thế hệ CPU mới nhất này. Chip Apple A9 sở hữu 2 nhân hoạt động, với tốc độ được tăng từ 1,4 GHz trên Apple A8 lên thành 1,8 GHz.

So sánh chip cortex-a8 và apple a8
Ngoài ra, thế hệ chip A9 được sản xuất trên tiến trình 14nm FinFET tiên tiến nhất hiện nay của Samsung (Chip Apple A9 do Samsung sản xuất), hỗ trợ 2 GB RAM LPDDR4. Trong khi đó, chip Apple A8 được sản xuất trên tiến trình chỉ 20nm và hỗ trợ 1GB RAM mà thôi! Nhờ vậy, vi xử lý Apple A9 sẽ cho hiệu năng cao hơn, đồng thời tiết kiệm năng lượng hơn so với người tiền nhiệm Apple A8 vốn đã được đánh giá rất cao.

Hiệu năng của chip Apple A9 vượt xa chip Apple A8

Xét trên tổng hiệu năng hoạt động của CPU, Chipset Apple A9 nhanh hơn 70% so với A8, còn về các tác vụ đồ họa (GPU), nó nhanh hơn 90%. Ngoài ra, khi so sánh chip Apple A9 với các loại vi xử lý cho máy tính để bàn sử dụng chip Intel Skylake, hiệu năng của nó được coi là “nhanh hơn 80% số máy tính xách tay được bán ra trong vòng 12 tháng qua”. [caption id="" align="aligncenter" width="480"]

So sánh chip cortex-a8 và apple a8
Điểm hiệu năng của iPhone 6 Plus, iPhone 6S, iPhone 6S Plus so với các đối thủ Android[/caption] Ngoài ra, Apple A9 còn được trang bị bộ vi xử lý chuyện động mới nhất (chip M9). Loại chip này cũng sở hữu một co-processor mới, giúp iPhone trở nên thông minh hơn nhờ khả năng phán đoán chuyển động của người dùng. Ví dụ, bạn có thể kích hoạt Siri chỉ bằng cách nói “Hey Siri” kể cả khi máy đang ở chế độ khóa. Người dùng iPhone vẫn có thể tự hào bởi hiệu năng của iPhone nói chung và iPhone 6S Plus nói riêng không hề thua kém bất kì một đối thủ nào trên thị trường di động hiện nay mặc dù chip Apple A9 chỉ là chip lõi kép.

A 32-bit operating system can only support up to 4GB of RAM. 64-bit allows more than 4GB, giving increased performance. It also allows you to run 64-bit apps.

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

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

The fifth-generation wireless technology delivers higher speeds and lower latency than the previous, fourth-generation tech.

GPU turbo

Unknown. Help us by suggesting a value. (Apple A8)

Unknown. Help us by suggesting a value. (Qualcomm Snapdragon 625)

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

OpenGL ES is used for games on mobile devices such as smartphones. Newer versions support better graphics.

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.

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.

Using big.LITTLE technology, a chip can switch between two sets of processor cores to maximize performance and battery life. For example, when playing a game the more powerful cores will be used to increase performance, whereas checking email will use the less powerful cores to maximize battery life.

Heterogeneous Multi-Processing (HMP) is a more advanced version of big.LITTLE technology. In this setup, a processor can utilize all cores at the same time, or just a single core for low-intensity tasks. This can provide powerful performance or increased battery life respectively.

turbo clock speed

Unknown. Help us by suggesting a value. (Apple A8)

Unknown. Help us by suggesting a value. (Qualcomm Snapdragon 625)

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

L2 cache

Unknown. Help us by suggesting a value. (Apple A8)

Unknown. Help us by suggesting a value. (Qualcomm Snapdragon 625)

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

L1 cache

Unknown. Help us by suggesting a value. (Apple A8)

Unknown. Help us by suggesting a value. (Qualcomm Snapdragon 625)

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

clock multiplier

Unknown. Help us by suggesting a value. (Apple A8)

Unknown. Help us by suggesting a value. (Qualcomm Snapdragon 625)

The clock multiplier controls the speed of the CPU.

L3 cache

Unknown. Help us by suggesting a value. (Apple A8)

Unknown. Help us by suggesting a value. (Qualcomm Snapdragon 625)

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

Memory

RAM speed

Unknown. Help us by suggesting a value. (Apple A8)

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

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.

maximum memory amount

Unknown. Help us by suggesting a value. (Apple A8)

Unknown. Help us by suggesting a value. (Qualcomm Snapdragon 625)

The maximum amount of memory (RAM) supported.

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

memory channels

Unknown. Help us by suggesting a value. (Qualcomm Snapdragon 625)

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

eMMC version

Unknown. Help us by suggesting a value. (Apple A8)

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.

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.

Features

The system on a chip (SoC) has an integrated LTE cellular chip. LTE is capable of downloading at faster speeds than older, 3G technology.

The download speed is a measurement of the internet connection bandwidth, representing the maximum data transfer rate at which a device can access online content.

upload speed

Unknown. Help us by suggesting a value. (Apple A8)

The upload speed is a measurement of the internet connection bandwidth, representing the maximum data transfer rate at which a device can send information to a server or another device.

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).

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.

NX bit helps protect the computer from malicious attacks.

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

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

front-end width

Unknown. Help us by suggesting a value. (Qualcomm Snapdragon 625)

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

Benchmarks

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

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

PassMark result

Unknown. Help us by suggesting a value. (Apple A8)

Unknown. Help us by suggesting a value. (Qualcomm Snapdragon 625)

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

PassMark result (single)

Unknown. Help us by suggesting a value. (Apple A8)

Unknown. Help us by suggesting a value. (Qualcomm Snapdragon 625)

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

PassMark result (overclocked)

Unknown. Help us by suggesting a value. (Apple A8)

Unknown. Help us by suggesting a value. (Qualcomm Snapdragon 625)

This benchmark measures the performance of the CPU when it is overclocked.

Miscellaneous

Bluetooth is a wireless technology standard that allows data transfers between devices placed in close proximity, using short-wavelength, ultra-high frequency radio waves. Newer versions provide faster data transfers.