PC Bottleneck Blog | Free CPU & GPU Bottleneck Calculator Guides

CPU Fan Speed Detection Error: Causes, Fixes & Thermal Safety Explained

Seeing a CPU fan speed detection error at boot? Learn what it means, how to spot real cooling failure vs false alarms, and the safest BIOS and hardware fixes.

December 3, 2025

What Are CUDA Cores? Simple Explanation + Real GPU Examples

You’re shopping for a GPU and everyone keeps screaming about CUDA cores. The RTX 4090 has 16,384. The RTX 4080

December 1, 2025

GPU Fans Not Spinning? Causes, Fixes, and When to Worry (2026 Guide)

GPU fans not spinning? 70% of cases are normal Zero RPM Mode. Learn when it’s safe, when to worry, and step-by-step fixes for RTX 3060, 4070 & AMD cards.

November 30, 2025

APU vs GPU: What’s the Difference & Which Should You Choose?

You’re shopping for your first gaming PC, and someone suggests an APU. Your friend swears by a dedicated GPU. Meanwhile,

November 29, 2025

CPU Overheating Explained: Causes, Fixes, and How to Prevent Heat Damage

Introduction A CPU overheating issue is one of the fastest ways to tank system performance, trigger thermal throttling, and if

November 23, 2025

CPU Cores vs Threads Explained With Benchmarks & Real-World Examples (2025 Guide)

A deep technical guide on CPU cores vs threads. Learn how cores and threads impact gaming FPS, productivity, bottlenecks, and modern CPUs with detailed benchmarks.

November 22, 2025

AMD Ryzen 5 5500X3D Benchmarks: Gaming Performance & Bottleneck Tests

A complete technical analysis of the AMD Ryzen 5 5500X3D benchmarks, covering gaming performance, CPU bottleneck testing, V-Cache benefits, thermals, efficiency, and GPU pairing recommendations.

November 20, 2025

SSD vs NVMe: Speed, Performance, and Gaming Impact Explained

Introduction For years, traditional SATA SSDs were the gold standard for fast storage, offering dramatic improvements over spinning hard drives.

November 19, 2025

Is the core i7 7700K Still Worth It in 2026?

Intel Core i 7700K in 2026: Gaming Performance, Bottlenecks & Modern Benchmarks

Introduction Released in early 2017, the Intel Core i7 7700K was once the king of 4-core gaming CPUs. It launched

November 18, 2025