Project Zomboid · Rough session · 78 FPS · 11 stutters (30 slow frames including 9 freezes) · @kleiN

Shared session

Project Zomboid

Oct 18, 2026, 02:55 AM · 25 min · 10 min gameplay

AMD Ryzen 7 9800X3D 8-Core Processor · MSI GeForce RTX 4080 Ventus 3X OC 16GB · 46 GB RAM · 1080x1920 · driver 617.14Exclusive fullscreen

Detected by: system event · End: the game closed

Key takeaways

Rough session

Stutters cost a noticeable share of the playtime.

11 stutters (30 slow frames including 9 freezes) · 4.6 s lost

Main cause: Game computation (25 occurrences). The worst stretch cost 2.0 s of lost frames.

Pace set by the processor

The processor set the pace on 99% of the frames: it decides how many frames per second you get, not the graphics card.

Performance

FPS, lows and stutter breakdown

Frame timing

10 min active / 25 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

19.2 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 (30)

4.6 s lost

Game computation25(4.1 s)

Drive loading5(1.1 s)

System state

CPU, GPU, VRAM averages and temperatures

Game CPU

11%

GPU

25%

CPU temp max

81°

59° on average

GPU temp max

62°

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 51 °CCPU fan max 4,255 RPMGPU fan max 1,137 RPMCPU power avg. 83 WGPU power avg. 68 W

Measurement conditions

V-Sync: off
Loading hitches excluded: 7
Measurement cost: 0.5% of the processor

Pace set by the processor

The processor set the pace on 99% of the frames: it decides how many frames per second you get, not the graphics card.

VRAM peak

9.6 GB

Input lag p99

199.0 ms