Project Zomboid · Rough session · 81 FPS · 261 stutters (576 slow frames including 22 freezes) · @kleiN

Shared session

Project Zomboid

Oct 19, 2026, 04:49 PM · 4h 13min · 196 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.

261 stutters (576 slow frames including 22 freezes) · 31.1 s lost

Main cause: Game computation. The worst stretch cost 4.2 s of lost frames.

Pace set by the processor

The processor set the pace on 71% of the frames: it decides how many frames per second you get, not the graphics card.

Performance

FPS, lows and stutter breakdown

Frame timing

196 min active / 253 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

24.3 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 (576)

31.1 s lost

Game computation499(29.4 s)

Drive loading1(0.0 s)

Breakdown of the first 500 stutters.

System state

CPU, GPU, VRAM averages and temperatures

Game CPU

16%

GPU

44%

CPU temp max

82°

66° on average

GPU temp max

66°

56° 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 53 °CCPU fan max 4,240 RPMGPU fan max 1,431 RPMCPU power avg. 93 WGPU power avg. 148 W

Measurement conditions

V-Sync: off
Loading hitches excluded: 38
Measurement cost: 0.4% of the processor

Pace set by the processor

The processor set the pace on 71% of the frames: it decides how many frames per second you get, not the graphics card.

VRAM peak

14.1 GB

Input lag p99

65.0 ms