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Call of Duty 4 with DLSS 5 on PS3 Emulator (RTX4090) 3000 FPS!

In-depth RPCS3 benchmark of Call of Duty 4: Modern Warfare running in 4K HDR. Side-by-side performance analysis comparing DLSS 5 ON vs OFF on high-end

Call of Duty 4 PS3 Emulator (RPCS3): DLSS 5 ON vs OFF Benchmark

Running seventh-generation console titles via emulation has always been CPU-heavy, but pushing internal render resolutions to 4K introduces distinct GPU bottlenecks and edge-shimmering artifacts. In this test, we run Call of Duty 4: Modern Warfare (2007) on the RPCS3 PlayStation 3 Emulator powered by an NVIDIA GeForce RTX 4090, comparing native 4K output against reconstructed rendering using DLSS 5 Neural Reconstruction in 4K 60FPS HDR.

The Challenge of Emulating CoD 4 at 4K

The original PlayStation 3 release of Modern Warfare targeted a native sub-720p resolution (1024x600) with minimal anti-aliasing. Upscaling through RPCS3 sharpens 3D geometry effectively, but it also accentuates specular crawl, shimmering power lines, and noisy alpha textures on chain-link fences.

Call of Duty 4 Modern Warfare RPCS3 PS3 emulator DLSS 5 ON vs OFF benchmark 4K comparison

DLSS OFF: Native 4K internal resolution

Call of Duty 4 RPCS3 native 4K gameplay with DLSS OFF showing alpha edge aliasing

DLSS 5 ON: Quality mode reconstruction

DLSS 5 Visual Resolve & Frame Times

Toggling DLSS 5 transforms temporal stability:

  • Edge Reconstruction: Fine details across weapon sights and wire fences resolve cleanly without the pixelated stair-stepping seen in native scaling.
  • Alpha Transparency Cleaning: Alpha-blended smoke and dust clouds render with reduced temporal noise, maintaining color depth across high dynamic range (HDR) scenes.
  • Frame Delivery: While the RTX 4090 handles native 4K comfortably, DLSS 5 stabilizes frame times during heavy airstrikes, eliminating micro-stutters.
Call of Duty 4 RPCS3 DLSS 5 ON quality mode reconstructed 4K 60FPS HDR gameplay


Call of Duty 4 RPCS3 200 percent zoom crop comparison foliage aliasing and weapon reticle edge stability200% zoom crop highlighting foliage aliasing and weapon reticle edge stability.

Benchmark Summary

Configuration Internal Resolution Target FPS Frame Time Stability Visual Artifacts
Native RPCS3 (DLSS OFF) 3840x2160 60 FPS Minor variance in explosions Heavy shimmering on alpha edges
DLSS 5 ON (Quality) Dynamic 4K Target 60 FPS Locked Flat, stable frame times Clean edges, minimal shimmer

Verdict

Integrating DLSS 5 into RPCS3 provides a noticeable leap in clarity for titles like Call of Duty 4. It smooths jagged edges and clears up the heavy shimmering characteristic of early PS3 releases, making it the definitive way to experience Modern Warfare on modern PC hardware.