On a AMD Radeon 660M (iGPU) (paired with a balanced Intel Core i5-8600K-class CPU), Marathon runs at roughly 25 FPS at 1080p with our optimized settings — up from about 11FPS with everything maxed. Here's the configuration and what each setting costs.
The AMD Radeon 660M (iGPU) is a entry-level graphics card with 2GB of VRAM, and Marathon is a demanding, graphically heavy game. Paired with the Intel Core i5-8600K, it is a real challenge at 1080p — about 25 FPSwith FrameCoach's optimized settings, a clear jump from roughly 11 FPS with everything on High.
Across resolutions you can expect around 25 FPS at 1080p and 15 FPS at 1440p, dropping to roughly 8 FPS at 4K. With only 2GB of VRAM, keep textures a notch below max in Marathon at higher resolutions to avoid stutter. The biggest free win is FSR upscaling — set it to Quality for a large FPS boost at little visual cost.
| Resolution | All-High FPS | Optimized FPS |
|---|---|---|
| 1080p | 11 | 25 |
| 1440p | 6 | 15 |
| 4K | 4 | 8 |
⚡ Fine-tune this for your exact CPU & target FPS →
With FrameCoach's optimized balanced settings, the AMD Radeon 660M (iGPU) averages around 25 FPS at 1080p in Marathon — up from about 11 FPS with everything on High.
At 1440p with optimized settings, the AMD Radeon 660M (iGPU) averages roughly 15 FPS in Marathon; turn on upscaling or aim for a locked 60 for the best feel.
Turn on FSR (Balanced), keep ray tracing off for maximum FPS, and ease the heaviest options like Shadow Quality and View Distance down a notch. The full per-setting breakdown is above.
FPS figures are estimates from a generalized model (hardware tier × game load × per-setting weights), not live benchmarks — real performance varies by scene, drivers and game version.