Project Zomboid · Rough session · 82 FPS · 192 stutters (932 slow frames including 18 freezes) · @kleiN

Shared session

Project Zomboid

Oct 20, 2026, 04:09 PM · 1h 33min · 79 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.

192 stutters (932 slow frames including 18 freezes) · 35.5 s lost

Main cause: Game computation. The worst stretch cost 2.9 s of lost frames.

Pace set by the processor

The processor set the pace on 63% of the frames: it decides how many frames per second you get, not the graphics card.

Performance

FPS, lows and stutter breakdown

Frame timing

79 min active / 93 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

27.4 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 (932)

35.5 s lost

Game computation500(29.0 s)

Breakdown of the first 500 stutters.

System state

CPU, GPU, VRAM averages and temperatures

Game CPU

20%

GPU

45%

CPU temp max

83°

66° on average

GPU temp max

65°

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 1,476 RPMCPU power avg. 95 WGPU power avg. 159 W

Measurement conditions

V-Sync: off
Loading hitches excluded: 8
Measurement cost: 0.4% of the processor

Pace set by the processor

The processor set the pace on 63% of the frames: it decides how many frames per second you get, not the graphics card.

VRAM peak

13.6 GB

Input lag p99

48.4 ms