RTX 4090

Written analysis

RTX 4090 at a glance

The RTX 4090 is based on the Ada Lovelace architecture and is manufactured using the 5 nm process at TSMC. It ships with 24 GB of GDDR6X on a 384-bit bus , about 1 GB/s. Shader count is 16384 across 128 CU/SM. The board interface is PCIe 4.0 x16.

Reference board power is a very high 450 W with 1x 16-pin. PSU sizing must include the CPU and transient load, while the case needs unrestricted intake and exhaust.

VRAM capacity is high-end at 24 GB. That is the class you want for 4K textures, heavy ray tracing, and creator GPU memory loads.

Best fit: Strong 1440p builds, with 4K available when settings or upscaling are adjusted.

Gaming performance

RTX 4090 is a strong gaming GPU, at 82.93% of the dataset’s best 1440p raster performance. This is the 1440p high / ultra class; 4K is usable with some setting trade-offs.

1440p value is 24.9 performance per dollar. You are paying for peak raster performance, not efficiency.