Fortnite · Bad session · 166 FPS · 127 stutters (621 slow frames including 197 freezes) · @Luffyy

Shared session

By @Luffyy

Fortnite

Oct 01, 2026, 01:22 PM · 1h 32min · 19 min gameplay

Detected by: system event · End: the game closed

Key takeaways

Bad session

Stutters cost a noticeable share of the playtime.

127 stutters (621 slow frames including 197 freezes) · 95.7 s lost

Main cause: Game computation. The worst stretch cost 23.2 s of lost frames.

Pace set by the graphics card

The graphics card set the pace on 79% of the frames: the usual situation for an uncapped game.

Performance

FPS, lows and stutter breakdown

Frame timing

19 min active / 92 min total

Average FPS

166

Session average

1% low

Average of the worst 1% of frames

0.1% low

Average of the worst 0.1% of frames

Frame p99

34.1 ms

Time per frame, in the slowest 1%

Median frame time of each slice (ms) over the session. Red dots = slowest frame of a slice, when it clearly breaks from the session’s pace.

Slow frames (621)

95.7 s lost

Game computation269(37.0 s)

Graphics load225(54.4 s)

Not enough RAM5(1.8 s)

Drive loading1(0.1 s)

Breakdown of the first 500 stutters.

System state

CPU, GPU, VRAM averages and temperatures

Game CPU

21%

GPU

53%

CPU temp max

76°

54° on average

GPU temp max

67°

51° on average

Processor · Graphics card over the session, peak of each slice. The dashed lines are the thresholds of the thermal summary.

Advanced sensors (PawnIO driver)

VRM max 45 °CCPU fan max 3,217 RPMGPU fan max 3,010 RPMCPU power avg. 99 WGPU power avg. 96 WHottest core #8 · 80 °C

Measurement conditions

V-Sync: off
Loading hitches excluded: 403
Measurement cost: 0.4% of the processor

Pace set by the graphics card

The graphics card set the pace on 79% of the frames: the usual situation for an uncapped game.

VRAM peak

7.7 GB

Input lag p99

160.7 ms