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, 132 flashcards. 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

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Table 1: Core Processing Components

The brains of any build live here — the CPU and GPU and the silicon that feeds them. These rows show how cores, clock speed, cache (including AMD's 3D V-Cache), VRAM, and the newer Tensor and AI accelerators each pull their weight for gaming, rendering, and on-device AI.

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.
CPU Cache	`L1: 64 KB/core` `L3: 32–96 MB shared`	• High-speed on-die memory for frequently accessed data • larger caches reduce latency and improve game frame rates.
3D V-Cache (X3D Technology)	`Ryzen 9 9950X3D2: 208 MB cache` `Ryzen 7 9850X3D: 128 MB cache`	• AMD technology stacking extra L3 cache directly onto (2nd Gen: beneath) the CPU cores • dramatically boosts gaming frame rates by reducing main-memory accesses.
CUDA Cores / Stream Processors	`RTX 5090: 21,760 CUDA cores` `RX 9070 XT: 4,096 SPs`	• Parallel compute units within a GPU • higher counts improve rendering and compute throughput.
Tensor Cores / AI Accelerators	`RTX 50: 5th-gen Tensor Cores` `Ryzen AI: NPU up to 50 TOPS`	• Dedicated hardware for AI inference • powers DLSS upscaling, frame generation, and on-device LLM tasks on modern GPUs and CPUs.

Table 2: Motherboards and Chipsets

The motherboard is the backbone every other part plugs into, and its form factor, chipset, and slot layout quietly cap what your build can ever become. The chipset and VRM rows matter most — they decide how much overclocking and how many high-speed devices the board can actually support.

Component	Example	Description
Motherboard Form Factor	`ATX (305×244 mm)` `Mini-ITX (170×170 mm)`	• Physical size and mounting standard • determines case compatibility and expansion slot count.

The rest of this section is part of the full cheat sheet

Table 3: Memory (RAM)

RAM speed and timings matter more than most people expect — especially for gaming on Ryzen. These rows walk through the DDR5 versus DDR4 split, why channels and CAS latency change real-world performance, and how XMP, EXPO, and ECC fit in.

Type	Example	Description
DDR5 RAM	`32 GB DDR5-6000 CL30` `64 GB DDR5-8000 CL38`	• Current mainstream standard • offers higher bandwidth (up to 8400+ MT/s) and improved power efficiency over DDR4.

The rest of this section is part of the full cheat sheet

Table 4: Storage Devices

Storage is a balancing act between speed, capacity, and cost, and knowing where each type lands saves real money. The rows run from blazing PCIe 5.0 NVMe drives down to bulk-archival hard disks, with a useful reality check along the way: PCIe 4.0 NVMe is often the smarter buy for gaming since the load-time gap over PCIe 5.0 is tiny.

Type	Example	Description
NVMe SSD (M.2 PCIe 5.0)	`WD Black SN8100 2 TB (14.5 GB/s)` `Samsung 9100 Pro 4 TB`	• Fastest consumer storage using PCIe 5.0 lanes • up to 14.5 GB/s sequential read, ideal for OS, games, and content editing.

The rest of this section is part of the full cheat sheet

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.
CPU Cache	`L1: 64 KB/core` `L3: 32–96 MB shared`	• High-speed on-die memory for frequently accessed data • larger caches reduce latency and improve game frame rates.
3D V-Cache (X3D Technology)	`Ryzen 9 9950X3D2: 208 MB cache` `Ryzen 7 9850X3D: 128 MB cache`	• AMD technology stacking extra L3 cache directly onto (2nd Gen: beneath) the CPU cores • dramatically boosts gaming frame rates by reducing main-memory accesses.
CUDA Cores / Stream Processors	`RTX 5090: 21,760 CUDA cores` `RX 9070 XT: 4,096 SPs`	• Parallel compute units within a GPU • higher counts improve rendering and compute throughput.
Tensor Cores / AI Accelerators	`RTX 50: 5th-gen Tensor Cores` `Ryzen AI: NPU up to 50 TOPS`	• Dedicated hardware for AI inference • powers DLSS upscaling, frame generation, and on-device LLM tasks on modern GPUs and CPUs.

Table 2: Motherboards and Chipsets

Component	Example	Description
Motherboard Form Factor	`ATX (305×244 mm)` `Mini-ITX (170×170 mm)`	• Physical size and mounting standard • determines case compatibility and expansion slot count.

Table 3: Memory (RAM)

Type	Example	Description
DDR5 RAM	`32 GB DDR5-6000 CL30` `64 GB DDR5-8000 CL38`	• Current mainstream standard • offers higher bandwidth (up to 8400+ MT/s) and improved power efficiency over DDR4.

Table 4: Storage Devices

Type	Example	Description
NVMe SSD (M.2 PCIe 5.0)	`WD Black SN8100 2 TB (14.5 GB/s)` `Samsung 9100 Pro 4 TB`	• Fastest consumer storage using PCIe 5.0 lanes • up to 14.5 GB/s sequential read, ideal for OS, games, and content editing.