Minecraft (Java) · Bad session · 136 FPS · 1049 stutters (1352 slow frames including 119 freezes) · @kleiN

Shared session

By @kleiN

Minecraft (Java)

Sep 22, 2026, 12:59 AM · 10h 1min · 188 min gameplay

Unstable framerate (48% drop) — stutters are noticeable and frequent.

AMD Ryzen 7 9800X3D 8-Core Processor · NVIDIA GeForce RTX 4080 · 46 GB RAM · 2560x1440 · driver 616.64Windowed

Detected by: process scan · End: the game closed

Key takeaways

What stands out in this session

Bad session

Unstable framerate (48% drop) — stutters are noticeable and frequent.

1049 stutters (1352 slow frames including 119 freezes) · 96.7 s lost

Main cause: Game computation. The worst stretch cost 16.8 s of lost frames.

CPU limited

The processor did most of the work on 100% of the frames: it is the limit, not the graphics card.

Performance

FPS, lows and stutter breakdown

Frame timing

188 min active / 601 min total

Average FPS

136

Session average

1% low

Average of the worst 1% of frames

0.1% low

Extreme micro-stutters

Frame p99

13.0 ms

Time per frame, in the slowest 1%

Time of each frame (ms) over the session — higher = longer frame. Red dots = frames that clearly break away from the pace of this session.

Slow frames (1352)

96.7 s lost

Game computation454(25.4 s)

Not enough RAM23(2.7 s)

Drive loading23(1.8 s)

Breakdown computed on the first 500 stutters reported by the app.

System state

CPU, GPU, VRAM averages and temperatures

Game CPU

GPU

20%

CPU temp max

73°

50° on average

GPU temp max

64°

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 51 °CCPU fan max 4,123 RPMGPU fan max 1,289 RPMCPU power avg. 55 WGPU power avg. 48 W

CPU limited

The processor did most of the work on 100% of the frames: it is the limit, not the graphics card.

VRAM peak

7.6 GB

VRAM evictions

Input lag p99

27.9 ms