CUDA Core

CUDA cores are tiny calculators in a GPU that perform math operations like A × B + C.

GA102 Chip

The GA102 is the GPU chip used in RTX 3080, 3080 Ti, 3090, and 3090 Ti graphics cards.

VRAM

GDDR6X SDRAM is the video memory used in the RTX 3090 to store textures, models, and 3D data.

Memory Bus

The 24 GDDR6X chips in RTX 3090 communicate over a 384-bit bus transferring 1.15 TB/s.

PAM Signaling

Modern GPU memory uses multi-level voltage signaling (PAM-4 for GDDR6X, PAM-3 for GDDR7) to increase speed and efficiency.

Voltage Regulator

The VRM converts 12V from the power connector to ~1.1V for the GPU.

Cooling System

Heatsinks, heat pipes, and fans remove heat generated by the GPU and memory.