Z1 Battle Royale (H1Z1) · Bad session · 400 FPS · 34 stutters (127 slow frames including 47 freezes) · @Teuf

Shared session

By @Teuf

Z1 Battle Royale (H1Z1)

Sep 24, 2026, 05:12 AM · 38 min · 34 min gameplay

Unstable framerate (58% drop): noticeable, frequent stutters.

Detected by: system event · End: the game closed

Key takeaways

Bad session

Unstable framerate (58% drop): noticeable, frequent stutters.

34 stutters (127 slow frames including 47 freezes) · 26.6 s lost

Main cause: Game computation. The worst stretch cost 7.5 s of lost frames. 87% happened in the first ten minutes: the signature of shader compilation, which will not happen again on this game.

CPU limited

The processor was the limit on 93% of the frames, not the graphics card.

Performance

FPS, lows and stutter breakdown

Frame timing

34 min active / 38 min total

Average FPS

400

Session average

1% low

167

Average of the worst 1% of frames

0.1% low

Extreme micro-stutters

Frame p99

4.5 ms

Time per frame, in the slowest 1%

Time of each frame (ms) over the session. Red dots = frames that clearly break from the session’s pace.

Slow frames (127)

26.6 s lost

Game computation50(10.7 s)

Breakdown of the first 50 stutters.

System state

CPU, GPU, VRAM averages and temperatures

Game CPU

11%

GPU

46%

CPU temp max

78°

65° on average

GPU temp max

62°

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)

GPU fan max 1,536 RPMCPU power avg. 132 WGPU power avg. 254 W

CPU limited

The processor was the limit on 93% of the frames, not the graphics card.

VRAM peak

5.1 GB

VRAM evictions

Input lag p99

12.8 ms