Hearthstone

Sep 21, 2026, 06:55 PM · 30 min · 17 min gameplay

Unstable framerate (58% 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

Rough session

Unstable framerate (58% drop) — stutters are noticeable and frequent.

42 stutters (75 slow frames including 11 freezes) · 6.0 s lost

Main cause: Game computation (72 occurrences). The worst stretch cost 2.7 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

17 min active / 30 min total

Average FPS

321

Session average

1% low

135

Average of the worst 1% of frames

0.1% low

Extreme micro-stutters

Frame p99

5.3 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 (75)

6.0 s lost

Game computation72(5.9 s)

CPU taken over2(0.1 s)

Drive loading1(0.0 s)

System state

CPU, GPU, VRAM averages and temperatures

Game CPU

19%

GPU

17%

CPU temp max

62°

52° on average

GPU temp max

59°

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 55 °CCPU fan max 846 RPMGPU fan max 1,003 RPMCPU power avg. 79 WGPU power avg. 114 WHottest core #2 · 62 °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

2.6 GB

VRAM evictions

Input lag p99

8.2 ms