To create ultrabooks with a high level of autonomy, the Core i3 - 4005U processor is intended. The characteristics of this chip, its specifications, as well as possible applications will be considered in this review. Also will be given reviews of owners of mobile computing systems based on this CPU.
Chip generation. Its specifications
The microprocessor model under consideration belongs to the fourth generation of the Core architecture, which has the code name Haswell. Two physical computing modules are part of the i3-4005U. The characteristics of this CPU indicate support for NT technology. Therefore, this semiconductor chip can process four streams of program code simultaneously. The clock frequency of the chip is fixed at 1.7 GHz. Its similar low value is due to the advanced energy efficiency of the processor. It is impossible to somehow change it upwards for the reason that the CPU multiplier and the system bus frequency are fixed by the manufacturer. Nominally, this modification of the microprocessor is designed to be installed in the FCBGA-1168 slot, but some manufacturers of mobile computers soldered this CPU directly to the system board. In the latter case, repair or modernization of the ultrabook becomes impossible.
Memory subsystem. Cache
The integrated dual-channel RAM controller is equipped with i3 - 4005U. Its characteristics indicate that it can address up to 16 GB of RAM format DDR3. The recommended module frequency is 1600 MHz. The chip is also equipped with a cache system of 3 levels. The size of the first of them is 128 Kb, the second is 512 Kb, and the third is 3 Mb. The first two of them can only be used by the computing part of the CPU, and the third one also has access to the integrated video card integrated into the microprocessor.
Graphics core
The integrated graphics card HD Graphics 4400 is part of the Core i3 - 4005U. Its characteristics indicate the presence of 20 computing units. The clock frequency of each of them can vary from 200 to 900 MHz. For processing graphic information , part of the RAM is reserved. The maximum amount of video buffer can be set in the BIOS. The amount of RAM used varies depending on the degree of complexity of the task.
Technology. Energy consumption
Using 22nm technology, the Intel i3-4005U semiconductor crystal was manufactured. The characteristics of this CPU indicate a thermal package of 15 watts. The maximum allowable temperature of this chip is 100 0 C.
Reviews Conclusion
Initially, the Core i3 - 4005U cannot boast a high level of performance. The characteristics of this microprocessor only once again confirm this. But this is not his purpose. This chip is intended for use in computing systems with a high degree of autonomy. This is his key advantage, on which owners of ultrabooks based on such a CPU are focusing. In addition to this, this microprocessor boasts a high degree of energy efficiency. A laptop with such a CPU is excellent for solving problems of entry-level and intermediate levels. But he is not able to implement resource-intensive tasks.