Project Zomboid · Clean session · 100 FPS · 44 stutters (93 slow frames including 13 freezes) · @kleiN

Shared session

Project Zomboid

Oct 23, 2026, 09:29 PM · 40 min · 27 min gameplay

AMD Ryzen 7 9800X3D 8-Core Processor · MSI GeForce RTX 4080 Ventus 3X OC 16GB · 46 GB RAM · 2560x1440 · driver 621.01Exclusive fullscreen

Detected by: system event · End: the game closed

Key takeaways

Smooth session

The time lost to stutters stays below the threshold.

44 stutters (93 slow frames including 13 freezes) · 6.9 s lost

Main cause: Game computation (83 occurrences). The worst stretch cost 1.8 s of lost frames.

Pace set by the graphics card

The graphics card set the pace on 70% of the frames: the usual situation for an uncapped game.

Performance

FPS, lows and stutter breakdown

Frame timing

27 min active / 40 min total

Average FPS

100

Session average

1% low

Average of the worst 1% of frames

0.1% low

Average of the worst 0.1% of frames

Frame p99

21.4 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 (93)

6.9 s lost

Game computation83(7.3 s)

Drive loading8(0.6 s)

Not enough RAM2(0.2 s)

System state

CPU, GPU, VRAM averages and temperatures

Game CPU

16%

GPU

42%

CPU temp max

78°

59° on average

GPU temp max

68°

54° 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 4,240 RPMGPU fan max 1,503 RPMCPU power avg. 83 WGPU power avg. 149 W

Measurement conditions

V-Sync: off
Loading hitches excluded: 14
Measurement cost: 0.4% of the processor

Pace set by the graphics card

The graphics card set the pace on 70% of the frames: the usual situation for an uncapped game.

VRAM peak

11.7 GB

Input lag p99

47.0 ms