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Alien: Isolation

Alien: Isolation earns its place by being the light end of the ladder, and by being ruthlessly repeatable. The benchmark is a flythrough you start from the command line - no menu, no input, nobody steering - and it writes its own CSV with a per-scene breakdown and a summary before closing itself. Five scenes, same path every time.

Do not mistake it for a stress test. It is a 2014 engine and it will not trouble a modern GPU: our Steam Machine clears 166 fps at 1440p with the quality knobs up. That is the point of having it. It answers a different question from the heavy titles - not 'can this rig cope', but 'does this rig have real headroom at high refresh', which is exactly what you want to know before putting a machine under a television.

It is also an honest look at how a GPU behaves when the frame times get short. The volumetric lighting scene runs hardest and the shadow scene swings widest, so a rig that averages well but paces badly has nowhere to hide across the five-scene spread.

Recommended settings

Resolution
Not specified
Preset
Not specified
Upscaling
Not specified
Ray tracing
Not specified
Built-in benchmark
No

CPU sensitivity

0.3 - 0 is GPU-bound, 1 is CPU-bound.

DSOGaming's Alien: Isolation PC performance analysis (i7 4930K, GTX 690) is the CPU-scaling source I retrieved and read for this title. It measured a simulated dual-core above 100 fps and the full six-core above 150 fps, and concludes the game 'will not stress either the CPU or the GPU of a modern-day PC system', attributing the light processor load to there being little beyond the Alien's own AI to drive it. Six cores do sit roughly 50 percent ahead of two there, so the game is not thread-blind - but both figures land far above any refresh rate a couch rig targets, which is why 0.3 reads as GPU-bound in practice. Same two caveats as the rest of this era of testing: simulated core counts rather than a real multi-CPU comparison, on 2014 hardware.

Benchmark results

Build / devicePresetUpscalingfps
Valve Steam MachineUltra (SMAA T1x, SSAO Standard)Native166.56 fps Verified built-in benchmark
How we measured this
Scene
Built-in benchmark: benchmark (rigbench alien-isolation)
Passes
3
SteamOS
3.8.24
Proton
10.1000-105
Mesa
26.2.0-devel
Game build
4940658

Native 1080p. Upscaling, VSync, dynamic resolution and ray tracing off. Game Mode, frame limiter off, power profile at maximum. We report the median of 3 passes.

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