Hearthstone · Rough session · 230 FPS · 178 stutters (255 slow frames including 10 freezes) · @Stimi

Shared session

By @Stimi

Hearthstone

Sep 24, 2026, 12:00 AM · 38 min · 35 min gameplay

Very erratic framerate (63% drop) — a serious cause to investigate.

Intel(R) Core(TM) i7-10700K CPU @ 3.80GHz · NVIDIA GeForce RTX 3080 · 31 GB RAM · 2560x1440 · driver 616.64Windowed

Detected by: system event · End: the game closed

Key takeaways

What stands out in this session

Rough session

Very erratic framerate (63% drop) — a serious cause to investigate.

178 stutters (255 slow frames including 10 freezes) · 13.8 s lost

Main cause: Game computation (253 occurrences). The worst stretch cost 2.3 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

35 min active / 38 min total

Average FPS

230

Session average

1% low

Average of the worst 1% of frames

0.1% low

Extreme micro-stutters

Frame p99

8.6 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 (255)

13.8 s lost

Game computation253(13.7 s)

CPU taken over2(0.1 s)

System state

CPU, GPU, VRAM averages and temperatures

Game CPU

19%

GPU

16%

CPU temp max

64°

54° on average

GPU temp max

63°

59° 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 56 °CCPU fan max 851 RPMGPU fan max 1,080 RPMCPU power avg. 87 WGPU power avg. 119 WHottest core #6 · 67 °C

CPU limited

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

VRAM peak

2.4 GB

VRAM evictions

Input lag p99

24.1 ms