Flux

A tiny Windows monitor for your graphics card's memory: how much is in use, which apps are holding it, and a ✕ to end one and get it back.

Download Flux.exe v1.5 · 18 Oct 2026 One portable file. No install, no admin.
The Flux window: VRAM 8.9 of 15.9 GB with a sparkline, GPU load, GPU temperature, network, free and shared memory, CPU and RAM on the left, and the apps using video memory on the right, each with a bar and a cross to end it
The real window, fed made-up numbers.

What it shows

VRAM, out of the real total

Video memory in use against your card's true capacity (the figure Windows' WMI reports stops at 4 GB), the session's peak, and memory the driver holds that no app owns.

Who's holding it

Every app using video memory, biggest first, with a search box. The ✕ ends one: it asks first and checks it's still the same process; system processes get a lock instead.

Leak hunter

An amber ↑ marks an app whose VRAM keeps climbing. A sudden jump saves a list of every process, and a log every minute feeds an in-app report of peaks and climbs.

A small task manager

Switch the list to CPU, RAM, network or disk to see who's busy there. Click a card on the left to jump to its list. Only the per-app network view needs administrator rights.

Load and temperatures

GPU load and its busiest engines, power draw, core, hot-spot and memory temperature, clocks and fan speed, and your total download and upload.

Stays out of the way

Ctrl+Alt+V shows or hides it from anywhere. Pin it on top, or shrink it to a one-line strip. When VRAM passes your limit it pops up a note and beeps.

One list, five views

VRAM, CPU, RAM, NET or DISK: the switch above the list changes what it counts, always busiest first, and the header shows how many apps and their total. Or fold the whole window into one line.

The one-line mini strip: 9.0 of 15.9 GB, 56 percent, GPU 68 percent, 61 degrees
The mini strip: memory, GPU load and temperature in one line.
Flux with the process list switched to CPU, apps sorted by CPU use
The CPU view, also made-up data.

Download

  1. Download Flux.exe (17 MB).
  2. Run it. There's nothing to install; put it anywhere. If Windows SmartScreen warns about the unsigned file: More info → Run anyway.

Windows 10 or 11, any AMD, NVIDIA or Intel graphics card: memory and load come from Windows' own GPU counters. Temperatures, clocks and fan come from a bundled LibreHardwareMonitor running in a separate process (made on an AMD card); if no sensor answers, that card just hides. Settings and the log live in %LOCALAPPDATA%\Flux. From source: python vram_monitor.py (Python 3 with Tkinter; temperatures also need pythonnet).

Latest update

v1.5

A redesign and temperature alerts

Flux now has the same window design as Prisma and Mixtape, and it can warn you about GPU temperature and hot-spot temperature as well as VRAM. Just replace your old Flux.exe; your settings and leak log carry over.

Release notes · 18 Oct 2026