Amazon Kindle Fire HD 7 – Specifications

Brand name of the company that manufactures the device.

Information about the colors, in which the device is available in the market.

Estimated volume of the device, calculated from the dimensions provided by the manufacturer. Applies for devices in the form of a rectangular parallelepiped.

Information about the weight of the device in different measurement units.

Information about the thickness/depth of the device in different measurement units.

Information about the height, i.e. the vertical side of the device when it is used in its standard orientation.

Information about the width, i.e. the horizontal side of the device when it is used in its standard orientation.

Information about the operating system used by the device as well as its version.

SoC

The SoC integrates different hardware components such as the CPU, GPU, memory, peripherals, interfaces, etc., as well as software for their functioning.

Texas Instruments OMAP 4 4470Process technology

Information about the process technology used in manufacturing the chip. The value in nanometers represents half the distance between elements that make up the CPU.

45 nm

(nanometers)

CPU

CPU is the Central Processing Unit or the processor of a mobile device. Its main function is to interpret and execute instructions contained in software applications.

ARM Cortex-A9CPU bits

The CPU bits are determined by the bit-size of the processor registers, address buses and data buses. 64-bit CPUs provide better performance than 32-bit ones, which on their part perform better than 16-bit processors.

32 bitInstruction set

The instruction set architecture (ISA) is a set of commands used by the software to manage the CPU’s work. Information about the set of instructions the processor can execute.

ARMv7Level 1 cache memory (L1)

The cache memory is used by the processor in order to shorten the time needed to access data and instructions that a frequently used. The L1 (level 1) cache memory has a small volume, but operates faster than the RAM and the rest cache memory levels. If the processor does not find the data needed in L1, it continues to look for it in the L2 cache memory. In some processors the search in L1 and L2 is simultaneous.

32 KB + 32 KB

(kilobytes)

Level 2 cache memory (L2)

The L2 (level 2) cache memory is slower than L1, but has a larger capacity, instead, which allows it to cache more data. Just like L1, it is much faster than the system memory (RAM). If the CPU does not find the data needed in L2, it proceeds to look for them in the L3 cache memory (if there is such) or in the RAM.

1024 KB

(kilobytes)

1 MB

(megabytes)

CPU cores

A CPU core is the processor unit, which executes software instructions. Presently, besides single-core processors, there are dual-core, quad-core, hexa-core and so on multi-core processors. They increase the performance of the device allowing the execution of multiple instructions in parallel.

2CPU frequency

The frequency of the processor describes its clock rate in cycles per second. It is measured in Megahertz (MHz) or Gigahertz (GHz).

1500 MHz

(megahertz)

GPU

GPU is a graphical processing unit, which handles computation for 2D/3D graphics applications. In mobile devices GPU is usually utilized by games, UI, video playback, etc. GPU can also perform computation in applications traditionally handled by the CPU.

PowerVR SGX544RAM capacity

RAM (Random-Access Memory) is used by the operating system and all installed applications. Data in the RAM is lost after the device is turned off or restarted.

1 GB

(gigabytes)

RAM type

Information about the type of RAM used by the device.

LPDDR2RAM channels

Information about the number of RAM channels integrated in the SoC. More channels mean higher data transfer rates.

Double channelRAM frequency

RAM frequency relates directly to the rate of reading/writing from/in the RAM memory.

466 MHz

(megahertz)