Fortnite · Rough session · 49 FPS · 31 stutters (209 slow frames including 70 freezes) · @Luffyy

Shared session

By @Luffyy

Fortnite

Sep 30, 2026, 03:12 PM · 16 min · 4 min gameplay

Detected by: system event · End: the game closed

Key takeaways

Rough session

Stutters cost a noticeable share of the playtime.

31 stutters (209 slow frames including 70 freezes) · 18.6 s lost

Main cause: Game computation. The worst stretch cost 3.8 s of lost frames.

Balanced

Neither one dominates (47% of the frames limited by the card, 53% by the processor).

Performance

FPS, lows and stutter breakdown

Frame timing

4 min active / 16 min total

Average FPS

Session average

1% low

Average of the worst 1% of frames

0.1% low

Average of the worst 0.1% of frames

Frame p99

78.2 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 (209)

18.6 s lost

Game computation44(5.7 s)

Drive loading3(0.4 s)

Not enough RAM2(0.1 s)

Graphics load1(0.2 s)

Breakdown of the first 50 stutters.

System state

CPU, GPU, VRAM averages and temperatures

Game CPU

15%

GPU

56%

CPU temp max

73°

56° on average

GPU temp max

67°

58° 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 3,053 RPMGPU fan max 2,994 RPMCPU power avg. 101 WGPU power avg. 116 WHottest core #7 · 73 °C

Measurement conditions

V-Sync: off
Loading hitches excluded: 26
Measurement cost: 0.5% of the processor

Balanced

Neither one dominates (47% of the frames limited by the card, 53% by the processor).

VRAM peak

7.9 GB

Input lag p99

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