Mobile Performance Viewer (Runtime HUD Overlay for UE5 PC/Console/Android/IOS)

Videos List: 

How to set everything up

Demo

New Update introducing everything in the version 1.1

Minimalistic Performance Viewer is a drop-in performance monitoring HUD for Unreal Engine 5. Built for developers who need clean, readable stats on screen without the noise, without the setup, and without it falling apart in a packaged build.

Version 1.1 ships with 36 bindable stats across FPS, thread times, GPU info, VRAM, RAM, memory pressure, battery, temperature, and graphics API — all collected from the correct platform APIs and exposed to your UMG layout automatically every tick.

What it monitors

FPS & Frame Timing

• Smoothed FPS with exponential moving average so no jitter
• Raw frame time in milliseconds
• Color-coded Good / Warning / Critical against your target FPS
• Thread Times (requires bAllowStatsInShipping=true in packaged builds)
• Game Thread, Render Thread, GPU time in ms
• Automatic CPU vs GPU bottleneck detection with 10% hysteresis and no per-frame flipping

GPU

• GPU name and vendor detected at startup (NVIDIA, AMD, Intel, Qualcomm/Adreno, ARM/Mali, Apple, Imagination/PowerVR)
• Graphics API: DirectX 11/12, Vulkan, Metal, OpenGL

VRAM / Texture Pool

• Used, Total, and Available : separately bindable
• Desktop (Windows / Mac / Linux): reads real dedicated video memory via RHIGetTextureMemoryStats()
• Mobile (Android / iOS): uses Unreal's managed texture streaming pool : the value that actually drives texture quality, streaming decisions, and OOM kills on mobile

Memory Pressure (new in 1.1)

• Derived 0–1 ratio of texture pool consumed
• Safe / Warning / Critical thresholds
• The most crash-predictive GPU memory metric on mobile and could be more useful than raw MB

System RAM

• Used, Total, and Free : separately bindable
• Dynamic scale from real device total, no hardcoded values

Platform

• Battery level : Android and iOS, auto-hidden on desktop
• Device temperature level : Android, shows N/A elsewhere

How it works

Drop in the HUD Blueprint, create a UMG Widget Blueprint parented to UPerfOverlayWidget, name your text blocks, progress bars, and sparklines using the reserved binding names and everything populates automatically every tick. No Blueprint wiring. No C++ required to get started.

• Text_FPS          Text_FPS_Value
• Text_FrameTime    Text_FrameTime_MS
• Text_GameThread   Text_GameThread_MS
• Text_RenderThread Text_RenderThread_MS
• Text_GPU          Text_GPU_MS
• Text_Bottleneck
• Text_VRAM         Text_VRAM_Used   Text_VRAM_Total   Text_VRAM_Free
• Text_RAM          Text_RAM_Used    Text_RAM_Total    Text_RAM_Free
• Text_MemoryPressure               Text_MemoryPressure_Pct
• Text_GPUName      Text_GPUVendor  Text_GraphicsAPI
• Text_Battery      Text_Temperature
• Bar_VRAM  Bar_RAM  Bar_Battery  Bar_MemoryPressure

Sparkline_FPS  Sparkline_FrameTime  Sparkline_GPU  Sparkline_RAM  Sparkline_VRAM

For custom layouts, override the Blueprint events to format stats your own way: BP_OnFPSUpdated · BP_OnThreadTimesUpdated · BP_OnMemoryUpdated · BP_OnGraphicsInfo · BP_OnPlatformInfo · BP_OnStatsUpdated

Technical highlights

• Pure Runtime plugin : works in Editor, Development, and packaged Shipping builds
• Zero crashes in any config : every unavailable stat returns a safe sentinel and shows N/A, never a misleading zero
• All stats exposed as a single Blueprint struct (FPerfFrameData) : accessible from any Blueprint
• Uses only HAL platform abstraction : no direct Android/iOS headers, NDK cross-compilation works out of the box
• GPU info and Graphics API cached on first tick : zero per-frame overhead for static data
• Toggle, show, or hide the overlay at runtime via Blueprint or C++
• Full documentation and error reporting links included

* Requires bAllowStatsInShipping=true in packaged builds. Degrades gracefully otherwise.

1. Documentation : Github
2. Bug Reports : Github

If this plugin saves you time, an honest review goes a long way, it helps more developers find it and tells me what to improve next.