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Graphics cards/NVIDIA GeForce RTX 4090 Laptop GPU

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NVIDIA GeForce RTX 4090 Laptop GPU

The NVIDIA GeForce RTX 4090 Laptop GPU is NVIDIA’s Ada Lovelace mobile graphics card with 16 GB of GDDR6 memory and 9,728 shading units.

GeForce RTX 4090 Laptop GPUIllustration

Drawn from this part’s own specifications. No openly-licensed photograph of the NVIDIA GeForce RTX 4090 Laptop GPU exists, so this is an illustration rather than a photograph.

Overview

The NVIDIA GeForce RTX 4090 Laptop GPU is NVIDIA’s Ada Lovelace mobile graphics card with 16 GB of GDDR6 memory and 9,728 shading units. These are the manufacturer’s published figures. They describe what the chip is designed to do, not what your particular machine does with it, and the gap between those two is usually cooling. A boost clock is a ceiling rather than a promise, and how long a graphics card holds it under continuous load is the one thing no specification sheet can tell you.

Specifications

Architecture
Ada Lovelace
Shading units
9,728

Comparable within an architecture. Across vendors or generations it is not a like-for-like count.

Base clock
Not verified
Boost clock
1455 to 2040 MHz
Memory
16 GB
Memory type
GDDR6
Memory bus
256-bit
TDP
80 to 150 W

Board power, not measured draw. A laptop GPU's power is a range the laptop maker chooses within.

Process
Not verified
Launched
2023-02-08

Sources

Each figure, the label its source printed beside it, and the day it was read.

FigureAs printedSourceChecked
ArchitectureAda LovelaceNVIDIA Architecturenvidia.comSpecification page
Shading units9,728NVIDIA CUDA Coresnvidia.comSpecification page
Boost clock1455 to 2040 MHzBoost Clock (MHz)nvidia.comSpecification page
Memory16 GBStandard Memory Confignvidia.comSpecification page
Memory typeGDDR6Standard Memory Confignvidia.comSpecification page
Memory bus256-bitMemory Interface Widthnvidia.comSpecification page
TDP80 to 150 WGPU Subsystem Power (W)nvidia.comSpecification page
Launched2023-02-08GeForce RTX 4090 and 4080 laptops are available beginning February 8thnvidia.comLaunch release

Measured on SystemCheck: not enough runs yet. Run the test to add yours.

Compare

The 6 nearest graphics cards in the same segment, each with a published side-by-side.

Every figure on this sheet is a design target. None of it is a measurement.

Nothing above describes how a graphics card behaves twenty minutes into a sustained workload, which is where two chips with nearly identical specifications routinely diverge. A boost clock is a ceiling the vendor permits, not a rate the chip sustains, and whether it holds depends on the cooling, the case, the power profile and the room. None of those appear on a specification sheet.

We deliberately do not reduce these figures to a single score. A composite invented from specifications would look authoritative and measure nothing, and choosing the weights would be choosing the winner.