GTA 6 will be one of the most demanding open-world games on PC, and the RTX 4090 remains a top-tier card for it. SA gamers planning a build around it should set realistic frame-rate expectations and tune settings for the ray-traced streaming engine Rockstar is using.

Quick Answer

On an RTX 4090, GTA 6 is expected to run around 60-80 fps at 4K on High to Very High settings with DLSS Quality enabled, and 90-120 fps at 1440p. The card's 24GB of VRAM comfortably handles the game's high-resolution texture streaming, so the main tuning levers are ray tracing and DLSS mode rather than VRAM.

Settings That Move the Needle

GTA 6's heavy ray-traced lighting and dense city streaming are the biggest performance costs. On an RTX 4090, dropping ray tracing from Ultra to High recovers 15-25 fps with little visible difference in motion. DLSS Quality is essentially free performance at 4K, lifting frames 30-40% while keeping the image sharp. Texture quality can stay maxed thanks to the 24GB VRAM buffer, which avoids the streaming stutter that hits 8-10GB cards in busy areas.

Pair the RTX 4090 with at least a Ryzen 7 9800X3D or Core i7, since GTA 6's dense NPC and traffic simulation leans hard on the CPU in the city core.

Building Around an RTX 4090 for GTA 6

A strong RTX 4090 GTA 6 rig wants 32GB of DDR5, a fast Gen4 or Gen5 NVMe SSD for the game's heavy streaming demands, and a 850W ATX 3.1 PSU. The SSD matters more than usual here: GTA 6's UE5-style asset streaming punishes slow storage with texture pop-in, so a Gen4 NVMe at 7,000 MB/s is the floor.

FAQ

What FPS will GTA 6 get on an RTX 4090?

Expect roughly 60-80 fps at 4K High to Very High with DLSS Quality, and 90-120 fps at 1440p. The 24GB VRAM buffer prevents texture-streaming stutter that affects smaller cards in the dense city.

Do I need a fast SSD for GTA 6 on an RTX 4090?

Yes. GTA 6's heavy asset streaming punishes slow storage with texture pop-in, so a Gen4 NVMe SSD at 7,000 MB/s is the practical floor. A SATA drive will cause noticeable stutter in busy areas.

What CPU should pair with an RTX 4090 for GTA 6?

A Ryzen 7 9800X3D or Core i7-class chip. GTA 6's dense traffic and NPC simulation is CPU-heavy in the city core, so a strong gaming CPU prevents the RTX 4090 from being held back.

TIP

Quality and drop ray tracing from Ultra to High to gain 15-25 fps with almost no visible loss, then keep textures maxed since the RTX 4090's 24GB buffer handles GTA 6's streaming with ease.