Microprocessors Flashcards
What does CPU stand for and what does it do?
Central processing unit, processes all of the input data output, essentially the brain of the computer
When describing CPU what nomenclature should you use?
Make and model. Make: Intel model: i73820
What defines the difference between CPUs
The microarchitecture.
What is one hertz?
One cycle per second
What makes the CPU go?
The system crystal that oscillates at a certain speed on the motherboard. A.k.a. motherboard speed
If the system Crystal can only oscillate at a certain speed how does the CPU go faster?
There is a clock multiplier inside the CPU.
What is the CPU speed calculated in?
Hertz
So how is final CPU speed determined?
Speed of the motherboard and the clock multiplier
What is a multicore processor?
They include more than one CPU on a single physical chip
What is hyper threading?
The ability to make 1 core look like 2, only for Intel.
What is a cache?
Very fast temporary storage on a cpu. It helps with the overall speed of the computer.
What is the benefit of small cache?
It’s faster
What is the benefit of bigger cache?
It can hold more data.
What is the level one cache?
The cache that is physically closest to the CPU. Generally smaller and faster.
What is the difference between a level one and level two cache?
Level two is bigger and slower usually half the speed of level one.
What is the difference in 32-bit and 64-bit processors?
64-bit can handle more ram
What is GPU?
Integrated graphics processing unit. video card that is built into the CPU itself used by Intel.
What do the CPU extensions do?
They add functionality to a processor.
What is virtualization support?
Enables CPUs to more efficiently run virtualized systems
What are the types of CPU sockets?
LGA & PGA
What does PGA stand for
Pin grid array socket. Mainly used by AMD
What is a zif socket
Zero insertion force
What does LGA stand for?
Land grid array, used by Intel
What are the characteristics of LGA 775?
775 lands, First mainstream CPU to use LGA, runs with ddr2, started with pentium 4 and lasted through core 2’s.
What are the characteristics of LGA 1156?
More mainstream systems, 1156 lands, first socket to have a built in North bridge and ddr3 support, core i3, i5, i7.
What are the characteristics of LGA 1366?
For higher end systems, 1366 lands, built in memory controller to talk to ram, could support lots of DDR3, core i7
What are characteristics of LGA 1155?
Replaced the 1156, was the first to have full support of onboard graphics. Core i3 i5 i7
What are the characteristics of the LGA2011?
Started with DDR3 went to DDR4, supported the first systems to stop using PCI. Only pci express
What are the characteristics of LGA 1150
Sports multiple CPUs, started with DDR3 and supports DDR four and supports lots of PCI E devices
What are the characteristics of the AMD socket AM2?
Has 940 pins, Supported DDR2, hyper transport capability
What are the characteristics of the AM3 socket?
941 pins, supported Avalon 2, phenom 2 and ddr3.
What are the characteristics of AM3+?
942 pins Supported Avalon 2 phenom 2 ddr3.
What is APU?
Accelerated processing unit, AMD version of GPU.
What are the characteristics of AMD FM1?
First socket to support APU, 905 pins.
What are the characteristics of FM2?
904 pins, power and speed improvements to the FM1.
What are the characteristics of FM2+?
906 pins more pci express support.
