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[Tech] [Tech Bot #35] Decoding Processors: How Is 7nm Better Than 10nm And More!

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23:47, Mar-20-2019 | From PC
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Greetings Everyone,

These days we here that SD 855 is a 7nm processor, 845 was a 10 nm processor. But I am sure, some of you might have wondered what is this 7 nm & 10 nm and how is smaller 7 nm better than 10 nm or 14nm. In this 34th edition of Tech Bot, we'll talk about the processor's process size and much more !

Let's Keep Rolling !

Defining Processor "Process" Size

CPUs are made using photolithography, where an image of the CPU is etched onto a piece of silicon. The exact method of how this is done is usually referred to as the process node and is measured by how small the manufacturer can make the transistors.

“Process” is used to describe the fabrication process rather than the computer’s processor. It’s about how the chip gets made, not what it can do. The size of the process node, measured in nanometers, describes the size of a processor’s smallest possible element.

nms.png

The smaller the process, the greater the resolution that can be obtained. As a result, fabricators can make transistors and other components smaller. This means that more transistors can be put into a smaller physical space. This enables some benefits as well as some downsides.

The Smaller: The Better ?

Smaller processes also have a lower capacitance, allowing transistors to turn on and off more quickly while using less energy. And if you’re trying to make a better chip, that’s perfect. The faster a transistor can toggle on and off, the faster it can do work.

A chip with lower dynamic power consumption will drain batteries more slowly, cost less to run, and be more ecologically friendly. Smaller chips are also less expensive to make. Chips are made on circular wafers of silicon, like the one above.

A single wafer will typically contain dozens of processor dies. A smaller process size will create a smaller die size. And if die size is smaller, more dies will fit on a single silicon wafer. This leads to an increase in manufacturing efficiency, reducing fabrication costs. Developing a new process does require major investment, but after that cost is recovered, per-die costs drop significantly.


Any Downsides ?

  • Smaller transistors are harder to make. As transistors shrink, it becomes harder and harder to make chips that run at the highest possible clock speed.
  • Smaller transistors also have greater “leakage.” Leakage is a measurement of how much current a transistor allows through when in the “off” position. This means that as leakage increases, so does the static power consumption or the amount of power a transistor consumes while idle.
  • A smaller process might have a lower yield, resulting in fewer fully functional chips. This can cause production delays and shortages. That makes it harder to recoup the investment required to develop a new process.

Conclusions

Hope with this thread might have helped you know the difference between a 7nm and 10 nm processor. Please feel free to post your thoughts, views in the comments below.


Do post your reviews below & Happy MIUIing !

Source:  MakeTechEasier | Engadget

Regards,
sagarplay

DISCLAIMER: This post takes references from the source mentioned above. This is NOT an exact reproduction from the source's article. The images used in this thread are author's personal inputs.
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This post was edited by 1916894172 at 05:59, Mar-23-2019

Great information, Thanks.
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Very cool and helpful information

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