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AMD vs Intel
Transcript of AMD vs Intel
Clock Rate: Measured in Hz (Ghz, Mhz) meaning cycles per second. Calculated by Back Side Bus speed X Multiplier
Front Side Bus: Connects the I/O to the rest of the computer.
Cores: How many "processors" are in the CPU.
Threads: How many threads each core can handle at a time.
Cache: (L1-L2-L3) How much internal memory the CPU has to hold information. VS Advanced Micro Devices
Founded in 1969
Originally built RAM chips
Second largest producer of microprocessors
Only significant rival to Intel INTegrated ELectronics
Founded in 1968 - Originally built RAM chips
Worlds largest producer of microprocessors WHAT IS A CPU? 3 parts ALU CU Control Unit:
Fetches, decodes, manages execution and then stores results (1) Arithmetic Logic Unit
Digital Circuit which performs Arithmetic and Logical operations (2) The Central Processing Unit is the "brain"
of a computer.
It executes all commands and performs all the calculations. Proprietary Technologies Intel: Hyper-Threading
Allows an underutilized core to act as two cores.
Turbo-boost: Allows an underutilized core to over-clock the active core AMD:
"AMD is pursuing a dedication to openness rather than proprietary technology[.]" (3)
AMD does make use of "HyperTransport" technology Common Terms AMD FX-4100 Intel i3-2100 3.6Ghz
3.8Ghz Turbo (unlocked multiplier)
L1 cache 128 KB (code) / 64 KB (data)
L2 cache 4096 KB
L3 cache 8192 KB 3.1Ghz
L1 cache 64 KB (code) / 64 KB (data)
L2 cache 512 KB
L3 cache 3072 KB 32 nm architecture 32 nm
architecture The Low Down: Both are budget chips ($109-$119)
Small cache sizes
Both have same architecture and comparable frequency The Deal Breakers: Hyper-Threading vs Unlocked multiplier
2 cores vs 4 cores
L2 cache 2 x 256 kb vs. 2 x 2Mb
L3 cache 3 Mb vs. 8 Mb Program specific tuning The Final Verdict: When run at ultra preset, the i3 is the obvious victor Which would you choose? A) Central Programming Unit B) Control Processing Unit
C) Computer Processor Unit D) Computer Power User
E) Central Processing Unit Which Parts make up a CPU? A) HTT & Multiplier & Transistors
B) Core & Pins & Socket
C) ALU & CU & I/O
D) Logic Processor & Arithmetic Processor & Cache
E) Transistors & Bits & Front Side Bus Die size: The size in nm
Transistor: An electronic "switch." Can decide between on or off (1 or 0)
Pipeline: Breaks an instruction into smaller pieces to be processed by the CPU.
Instructions Per Cycle:
How many theoretical
instructions the CPU will
perform per clock cycle History of CPU's Intel 8086 - 1978 16 bit Gave rise to the X86 architecture
Intel 80386 - 1985 32 bit Most home PC's in the late 90's
Intel Pentium - 1993 32 bit, Superscalar (multiple instructions)
Intel Pentium 4 - 2004 64 bit processor
Intel Ivy Bridge - AMD Bulldozer - 2011 64 bit 32um - Modern "Top of the line" A History of Architectures Intel 8086 - 1978 16 bit 3μm Established the X86 design.
Intel "386" - 1985 32 bit 1μm Most home PC's in the late 80's used the 386
Intel Pentium - 1993 32 bit 800nm First "Superscalar" processor
Intel Pentium 4 (Prescott) - 2004 64 bit 90nm Hyper-Threading
Intel "Ivy Bridge" + AMD "Bulldozer" 2012 64 bit 32nm The latest available lines of processors 32nm = 0.032μm IPC 24 bits per thread vs. 22 bits when single core, 16 bits otherwise Which would you choose? Decide what is important to you. Bigger numbers are not always better. Consider your system as a whole. Upgradablility Budget The Contenders! Jimmy Bright and Chris McNeil Common Technologies Low power idle
Intel - Enhanced Intel SpeedStep Technology
AMD - PowerNow! I/O Manages data and instructions entering and leaving the processor Common Terms