For gamers
Great for the first ten minutes. Then the frame rate slides.
A benchmark score is a sprint. A game is an hour. SystemCheck measures what your PC holds once it is hot, and names why it fell.
What the report tells you
Three figures, each with its reading.
CPU decay
%
How much throughput the processor lost between its first five seconds and its last. Under 5% is normal; above 15% the cooling is the limit, not the silicon.
GPU frame pacing
ms
Frame time and its consistency under a calibrated raster load. Stutter shows here as variance before it shows in a game.
The shape
curve
A single step down is a power budget expiring. A steady slide is cooling falling behind. A sawtooth is the machine cycling between the two.
The diagnosis
The shape of the curve, read for your case.
01A single step down
The boost timer ran out and the chip dropped to its sustained power limit. Normal on most desktops; raising the limit needs a BIOS setting, not a fan.
02A steady slide
Heat is winning. Dust, a dried thermal paste, or a case with no exhaust. This is the one a fan curve and a clean-out fix.
03A sawtooth
The machine cools, boosts, hits the limit, drops, repeats. Usually a laptop with an aggressive fan profile or a power limit set too close to the boost.
Every class comes with a stated confidence and the measurement’s own noise floor. How the shape is read
Where a browser stops
What it cannot tell you.
- No frame rate for your game: the GPU stage is a calibrated scene, so the figure compares between runs and machines, not against a game's counter.
- No temperature: no browser exposes a sensor. The curve shows the effect; HWiNFO shows the degrees.
- No exact graphics card model: the browser reports a renderer string and hides the rest on purpose.
Which run
Deep, 8 minutes.
A game session is long. The deep run holds the CPU for three minutes and loops the GPU pass three times, which is what a gaming laptop needs to show its true settled level.
Both kinds are free. The choice is on the set-up screen.
Questions
Asked in these words.
- Why does my FPS drop after a few minutes of playing?
- Almost always one of two things: the processor or graphics card reached a power or temperature limit and stepped its clock down, or something else is now sharing the cores. A sustained-load test separates the two: a limit shows as a curve with a shape, contention shows as noise. The report names which.
- Can a browser test measure gaming performance?
- It measures the thing that decides gaming performance over time, which is how much of its peak a machine holds when hot. It cannot measure a specific game's frame rate; use the game's own counter for that and this test for why the counter fell.
- Should I run on battery or plugged in?
- Plugged in, unless you play on battery. On battery most laptops apply a lower power limit, and the report flags a run on battery so the two are never compared as equals.