Project Zomboid · Rough session · 110 FPS · 400 stutters (1045 slow frames including 37 freezes) · @kleiN

Shared session

Project Zomboid

Oct 18, 2026, 03:47 PM · 5h 28min · 208 min gameplay

AMD Ryzen 7 9800X3D 8-Core Processor · MSI GeForce RTX 4080 Ventus 3X OC 16GB · 46 GB RAM · 2560x1440 · driver 617.14Exclusive fullscreen

Detected by: system event · End: the game closed

Key takeaways

Rough session

Stutters cost a noticeable share of the playtime.

400 stutters (1045 slow frames including 37 freezes) · 36.2 s lost

Main cause: Game computation. The worst stretch cost 3.1 s of lost frames.

Pace set by the graphics card

The graphics card set the pace on 71% of the frames: the usual situation for an uncapped game.

Performance

FPS, lows and stutter breakdown

Frame timing

208 min active / 328 min total

Average FPS

110

Session average

1% low

Average of the worst 1% of frames

0.1% low

Average of the worst 0.1% of frames

Frame p99

21.6 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 (1045)

36.2 s lost

Game computation450(22.1 s)

Drive loading34(2.6 s)

Not enough RAM7(0.7 s)

Graphics load7(0.3 s)

CPU taken over2(0.1 s)

Breakdown of the first 500 stutters.

System state

CPU, GPU, VRAM averages and temperatures

Game CPU

16%

GPU

40%

CPU temp max

82°

64° on average

GPU temp max

69°

57° 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 54 °CCPU fan max 4,240 RPMGPU fan max 1,762 RPMCPU power avg. 86 WGPU power avg. 135 W

Measurement conditions

V-Sync: off
Loading hitches excluded: 32
Measurement cost: 1.4% of the processor

Pace set by the graphics card

The graphics card set the pace on 71% of the frames: the usual situation for an uncapped game.

VRAM peak

14.2 GB

Input lag p99

43.0 ms