PC Hardware Cheat Sheet

Updated 2026-04-28

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PC hardware encompasses the physical components that work together to form a functional computer system, ranging from core processing units and storage devices to peripherals and cooling solutions. Understanding these components is essential for building, upgrading, troubleshooting, and maintaining computers across consumer, gaming, and professional workstation applications. Whether selecting compatible parts for a custom build or diagnosing performance issues, knowing how motherboards, processors, memory, and other hardware interact enables informed decisions that balance performance, reliability, and cost. Modern PC hardware in 2026 continues to evolve with faster interfaces (PCIe 5.0, DDR5-8400+), AI-accelerated rendering (DLSS 4, FSR 4), ATX 3.1 power standards, and AMD's 2nd Gen 3D V-Cache technology — all shaping how systems are built and optimized today.

What This Cheat Sheet Covers

This topic spans 25 focused tables and 167 indexed concepts. Below is a complete table-by-table outline of this topic, spanning foundational concepts through advanced details.

Table 1: Core Processing ComponentsTable 2: Motherboards and ChipsetsTable 3: Memory (RAM)Table 4: Storage DevicesTable 5: Power Supply Units (PSUs)Table 6: Cooling SolutionsTable 7: Computer CasesTable 8: Expansion Cards and InterfacesTable 9: Connectors and CablesTable 10: Firmware and BIOS/UEFITable 11: Monitors and DisplaysTable 12: PeripheralsTable 13: Diagnostic and Monitoring ToolsTable 14: Networking HardwareTable 15: Audio HardwareTable 16: Compatibility and PlanningTable 17: Overclocking and Performance TuningTable 18: Cable Management and AirflowTable 19: Maintenance and LongevityTable 20: Workstation-Specific HardwareTable 21: Advanced Storage ConfigurationsTable 22: Specialized ComponentsTable 23: ESD Protection and SafetyTable 24: Benchmarking and TestingTable 25: AI-Accelerated Rendering

Table 1: Core Processing Components

Component	Example	Description
CPU (Central Processing Unit)	`AMD Ryzen 9 9950X3D2` `Intel Core Ultra 9 285K`	• The main processor executing instructions • characterized by core count, clock speed, and architecture (Zen 5, Arrow Lake).
GPU (Graphics Processing Unit)	`NVIDIA RTX 5090 32GB GDDR7` `AMD RX 9070 XT 16GB GDDR6`	• Dedicated processor for rendering graphics and parallel compute • critical for gaming, 3D rendering, and local AI workloads.
CPU Socket	`AM5 (AMD Ryzen 7000/9000)` `LGA 1851 (Intel Arrow Lake)`	• Physical interface connecting CPU to motherboard • must match exactly between processor and board — no cross-compatibility.
VRAM (Video Memory)	`32GB GDDR7 (RTX 5090)` `16GB GDDR6 (RX 9070 XT)`	• Dedicated memory on GPU for textures and frame buffers • more VRAM enables higher resolutions and AI model capacity.
Integrated Graphics (iGPU)	`Intel Arc Graphics (Core Ultra)` `AMD Radeon 890M`	• GPU built into the CPU die • sufficient for display output and light tasks, not for gaming or rendering.

Table 1: Core Processing Components

Component	Example	Description
CPU (Central Processing Unit)	`AMD Ryzen 9 9950X3D2` `Intel Core Ultra 9 285K`	• The main processor executing instructions • characterized by core count, clock speed, and architecture (Zen 5, Arrow Lake).
GPU (Graphics Processing Unit)	`NVIDIA RTX 5090 32GB GDDR7` `AMD RX 9070 XT 16GB GDDR6`	• Dedicated processor for rendering graphics and parallel compute • critical for gaming, 3D rendering, and local AI workloads.
CPU Socket	`AM5 (AMD Ryzen 7000/9000)` `LGA 1851 (Intel Arrow Lake)`	• Physical interface connecting CPU to motherboard • must match exactly between processor and board — no cross-compatibility.
VRAM (Video Memory)	`32GB GDDR7 (RTX 5090)` `16GB GDDR6 (RX 9070 XT)`	• Dedicated memory on GPU for textures and frame buffers • more VRAM enables higher resolutions and AI model capacity.
Integrated Graphics (iGPU)	`Intel Arc Graphics (Core Ultra)` `AMD Radeon 890M`	• GPU built into the CPU die • sufficient for display output and light tasks, not for gaming or rendering.