Fortnite · Rough session · 155 FPS · 26 stutters (60 slow frames including 11 freezes) · @Luffyy

Shared session

By @Luffyy

Fortnite

Sep 28, 2026, 06:47 PM · 15 min · 4 min gameplay

Detected by: system event · End: the game closed

Key takeaways

Rough session

Stutters cost a noticeable share of the playtime.

26 stutters (60 slow frames including 11 freezes) · 4.7 s lost

Main cause: Game computation. The worst stretch cost 3.2 s of lost frames.

Pace set by the graphics card

The graphics card set the pace on 82% of the frames: the usual situation for an uncapped game.

Performance

FPS, lows and stutter breakdown

Frame timing

4 min active / 15 min total

Average FPS

155

Session average

1% low

Average of the worst 1% of frames

0.1% low

Average of the worst 0.1% of frames

Frame p99

12.5 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 (60)

4.7 s lost

Game computation26(3.4 s)

Graphics load24(1.2 s)

Breakdown of the first 50 stutters.

System state

CPU, GPU, VRAM averages and temperatures

Game CPU

21%

GPU

45%

CPU temp max

72°

57° on average

GPU temp max

65°

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 2,962 RPMGPU fan max 2,994 RPMCPU power avg. 110 WGPU power avg. 97 WHottest core #4 · 72 °C

Measurement conditions

V-Sync: off
Loading hitches excluded: 9
Measurement cost: 0.6% of the processor

Pace set by the graphics card

The graphics card set the pace on 82% of the frames: the usual situation for an uncapped game.

VRAM peak

7.8 GB

Input lag p99

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