PC Build & Hardware Calculator Toolkit
TweakGearPro sizes your PSU, checks your bottleneck, and estimates build cost with eight free in-browser calculators — no sign-up, no data sent anywhere. AI Overviews can describe a PSU formula; they can't size your build. Do it here, with your exact parts.
Browse hardware — CPU, GPU, SSD, PSU, RAM, Cooler & Monitor →
Pick a calculator
Every tool is client-side and instant. Figures are estimates based on typical component specs — verify with your build before buying.
PSU Wattage Calculator
Add up CPU, GPU, and system power, apply headroom, and get a recommended PSU wattage.
Open calculator →PerformancePC Bottleneck Estimator
Match a CPU tier and GPU tier at your resolution for a rough balance verdict.
Open calculator →BuildBuild Cost (TCO) Estimator
Amortize parts and peripherals, add electricity, and see a true monthly cost.
Open calculator →ReferenceMonitor Hz → FPS Reference
Understand refresh rate vs frame rate and check if your FPS keeps up.
Open calculator →ReferenceUnit Converter
Convert storage (GB↔TB) and data rates (Mbps↔MB/s) in one place.
Open calculator →PowerPC Power Draw Estimator
Estimate idle and load wattage, annual energy, and a suggested PSU size.
Open calculator →PerformanceGPU VRAM Recommendation
Get a suggested minimum VRAM for gaming, video, or ML by workload.
Open calculator →PowerThermal Headroom
Compare CPU TDP against cooler rating to see overclocking headroom.
Open calculator →BuildBuild Compatibility Check (go-no-go)
Will the CPU fit the board, the GPU fit the case, and the PSU cope? Three quick fit checks.
Open calculator →PerformanceFPS Budget Builder
Plan a target-FPS build by allocating your frame budget across CPU, GPU, and settings.
Open calculator →ReferenceMonitor PPI Calculator
See pixel density for any size and resolution to pick a sharp gaming panel.
Open calculator →Browse the hardware library
Every part has its own profile with official specs, a relative-performance estimate, build-compatibility guidance, generational notes and a printable tuning sheet. Start from the highest-ranked parts:
Ryzen 7 9800X3D
CPU · 2024 · tier 100/100
Specs & tuning →Ryzen 9 9950X3D
CPU · 2025 · tier 100/100
Specs & tuning →Ryzen 7 9800X3D (2025 refresh)
CPU · 2025 · tier 100/100
Specs & tuning →Threadripper 7980X
CPU · 2023 · tier 100/100
Specs & tuning →GeForce RTX 5090
Desktop GPU · 2025 · tier 100/100
Specs & tuning →B200 SXM 192GB
AI GPU · 2025 · tier 100/100
Specs & tuning →GB200 NVL72
AI GPU · 2025 · tier 100/100
Specs & tuning →Crucial T705 2TB
SSD · 2024 · tier 100/100
Specs & tuning →More free gaming tools
Part of a focused set of gaming utilities — no account required.
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