CPU Facts — CyberGrind

Fetch-Decode-Execute Cycle

01 — FETCH

CPU reads the next instruction from RAM using the Program Counter register.

02 — DECODE

Control Unit interprets the instruction and prepares the appropriate CPU components.

03 — EXECUTE

ALU or FPU carries out the operation. Result stored in a register or written back to RAM.

      Repeats billions of times per second. Modern CPUs use pipelining — the next instruction begins before the previous one finishes, enabling parallel execution.
    

Architecture Types

⚡ x86 / x64

Desktops, laptops, servers
Complex Instruction Set (CISC)
64-bit data width (modern)
High performance, higher power and heat
Manufactured by Intel and AMD

📱 ARM

Smartphones, tablets, embedded systems
Reduced Instruction Set (RISC)
Smaller die, less heat generated
Battery-optimized, lower power draw
Apple, Qualcomm, Samsung, NVIDIA

CPU Brand Lineup

Brand	Series	Tier
AMD	Athlon	Budget / Entry
AMD	Ryzen 3	Entry
AMD	Ryzen 5	Mid-Range
AMD	Ryzen 7 / 9	High-End
AMD	Threadripper	Extreme Workstation
AMD	EPYC	Server
Intel	Celeron / Atom	Budget / Ultra-Low Power
Intel	Core i3	Entry
Intel	Core i5	Mid-Range
Intel	Core i7 / i9	High-End
Intel	Xeon	Server / Workstation

Multi-Core Architecture

      Chip-level Multiprocessing (CMP) integrates multiple processor cores onto a single chip.
      Each core runs its own fetch-execute cycle independently. The OS scheduler assigns threads to cores,
      enabling parallel workloads without raising clock speed. More cost-effective than multi-socket SMP setups.
    

⚠ ESD Safety

Always unplug the computer before opening the case and use an anti-static wrist strap when handling CPUs and RAM. Electrostatic discharge can permanently damage sensitive components.

Central Processing Unit Facts & Architecture

01 — FETCH

02 — DECODE

03 — EXECUTE

⚡ x86 / x64

📱 ARM