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Best Diablo IV settings for the NVIDIA GTX 660 (2GB) (2026)

On a NVIDIA GTX 660 (2GB) (paired with a balanced Intel Core i5-8600K-class CPU), Diablo IV runs at roughly 45 FPS at 1080p with our optimized settings — up from about 18FPS with everything maxed. Here's the configuration and what each setting costs.

The NVIDIA GTX 660 (2GB) is a entry-level graphics card with 2GB of VRAM, and Diablo IV is a moderately demanding game. Paired with the Intel Core i5-8600K, it is playable at 1080p — about 45 FPS with FrameCoach's optimized settings, a clear jump from roughly 18 FPS with everything on High.

Across resolutions you can expect around 45 FPS at 1080p and 27 FPS at 1440p, dropping to roughly 15 FPS at 4K. The biggest free win is FSR upscaling — set it to Quality for a large FPS boost at little visual cost.

ResolutionAll-High FPSOptimized FPS
1080p1845
1440p1127
4K615
🚀 Biggest free win: enable FSR (Balanced) — about +55% FPS for a small sharpness trade.
Recommended settings
Upscaling — FSRBalanced+55% FPS
Supports DLSS (RTX), FSR and XeSS. A big GPU-side boost, though Diablo IV is well optimized to begin with.
Shadow QualityLow+10% FPS
Shadow resolution and filtering. High is a clean trade over Ultra.
Screen Space Ambient OcclusionOff+6% FPS
Soft contact shadows. Cheap; Medium is plenty for the top-down view.
Fog QualityLow+6% FPS
Volumetric fog in dungeons and the open world. A low-risk saving.
Reflection QualityLow+6% FPS
Reflections on wet floors and water. Often subtle from the isometric camera.
Clutter / Particle QualityLow+5% FPS
On-screen effects and debris. Lowering smooths busy fights with lots of mobs.
Anti-AliasingLow+5% FPS
Edge smoothing. Medium keeps the image clean cheaply.
Geometric ComplexityLow+5% FPS
Detail on environment and dungeon geometry. High over the top-down camera is plenty.
Shadow Filtering QualityLow+4% FPS
How softly shadow edges blur. Medium is a cheap, clean middle ground.
Water Simulation QualityLow+4% FPS
Ripples and flow on water surfaces. A low-risk saving from the isometric view.
DistortionOff+2% FPS
Heat-haze and magic-warp effects. Nearly free; set to taste.
Texture QualityUltra-1% FPS
Diablo IV is VRAM-hungry — Ultra textures want 10GB+. On 8GB cards, High avoids stutter.
Anisotropic Filtering16xbaseline
Keeps the ground sharp at angles — essentially free, use 16x.

⚡ Fine-tune this for your exact CPU & target FPS →

🎯 Can the NVIDIA GTX 660 (2GB) run Diablo IV? See the verdict →

Diablo IV on other GPUs
Other games on the NVIDIA GTX 660 (2GB)
Frequently asked

What FPS does the NVIDIA GTX 660 (2GB) get in Diablo IV?

With FrameCoach's optimized balanced settings, the NVIDIA GTX 660 (2GB) averages around 45 FPS at 1080p in Diablo IV — up from about 18 FPS with everything on High.

Can the NVIDIA GTX 660 (2GB) run Diablo IV at 1440p?

At 1440p with optimized settings, the NVIDIA GTX 660 (2GB) averages roughly 27 FPS in Diablo IV; turn on upscaling or aim for a locked 60 for the best feel.

What are the best Diablo IV settings for the NVIDIA GTX 660 (2GB)?

Turn on FSR (Balanced), keep ray tracing off for maximum FPS, and ease the heaviest options like Shadow Quality and Screen Space Ambient Occlusion 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.