Unrealeditorfortnite · Rough session · 71 FPS · 15 stutters (64 slow frames including 40 freezes) · @Luffyy

Shared session

By @Luffyy

Unrealeditorfortnite

Sep 28, 2026, 09:51 AM · 38 min · 2 min gameplay

Detected by: frame radar · End: the game closed

Key takeaways

Rough session

Stutters cost a noticeable share of the playtime.

15 stutters (64 slow frames including 40 freezes) · 17.0 s lost

Main cause: Game computation. The worst stretch cost 4.6 s of lost frames. 88% happened in the first ten minutes: the signature of shader compilation, which will not happen again on this game.

Pace set by the processor

The processor set the pace on 65% of the frames: it decides how many frames per second you get, not the graphics card.

Performance

FPS, lows and stutter breakdown

Frame timing

2 min active / 38 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

40.9 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 (64)

17.0 s lost

Game computation39(10.5 s)

Graphics load11(5.2 s)

Breakdown of the first 50 stutters.

System state

CPU, GPU, VRAM averages and temperatures

Game CPU

GPU

21%

CPU temp max

71°

49° on average

GPU temp max

63°

46° 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 42 °CCPU fan max 2,857 RPMGPU fan max 2,452 RPMCPU power avg. 70 WGPU power avg. 72 WHottest core #6 · 70 °C

Measurement conditions

V-Sync: off
Loading hitches excluded: 22
Measurement cost: 0.3% of the processor

Pace set by the processor

The processor set the pace on 65% of the frames: it decides how many frames per second you get, not the graphics card.

VRAM peak

7.0 GB

Input lag p99

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