Hearthstone · Bad session · 309 FPS · 65 stutters (103 slow frames including 15 freezes) · @Stimi

Shared session

Hearthstone

Sep 22, 2026, 04:37 PM · 22 min · 20 min gameplay

Unstable framerate (59% drop) — stutters are noticeable and frequent.

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

Detected by: system event · End: the game closed

Key takeaways

What stands out in this session

Bad session

Unstable framerate (59% drop) — stutters are noticeable and frequent.

65 stutters (103 slow frames including 15 freezes) · 14.0 s lost

Main cause: Game computation (95 occurrences). The worst stretch cost 4.5 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

20 min active / 22 min total

Average FPS

309

Session average

1% low

126

Average of the worst 1% of frames

0.1% low

Extreme micro-stutters

Frame p99

5.6 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 (103)

14.0 s lost

Game computation95(10.7 s)

Drive loading7(3.2 s)

CPU taken over1(0.0 s)

System state

CPU, GPU, VRAM averages and temperatures

Game CPU

20%

GPU

17%

CPU temp max

62°

51° on average

GPU temp max

56°

55° 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 833 RPMGPU fan max 1,004 RPMCPU power avg. 78 WGPU power avg. 115 WHottest core #4 · 63 °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

2.2 GB

VRAM evictions

Input lag p99

7.7 ms