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NVIDIA GeForce RTX 4090 Laptop GPU vs NVIDIA GeForce RTX 5090 Laptop GPU: Comparison

NVIDIA GeForce RTX 4090 Laptop GPU and NVIDIA GeForce RTX 5090 Laptop GPU separate most on vram: NVIDIA GeForce RTX 4090 Laptop GPU at 16 GB, NVIDIA GeForce RTX 5090 Laptop GPU at 24 GB, 33% in favour of NVIDIA GeForce RTX 5090 Laptop GPU. Boost Clock splits them by another 15%, again favouring NVIDIA GeForce RTX 5090 Laptop GPU. They match on 7 other specifications, including gpu brand, board partner and tier.

NVIDIA GeForce RTX 4090 Laptop GPU
NVIDIANVIDIA GeForce RTX 4090 Laptop GPU
NVIDIA GeForce RTX 5090 Laptop GPU
NVIDIANVIDIA GeForce RTX 5090 Laptop GPU

Specs

Specification
NVIDIA GeForce RTX 4090 Laptop GPU
NVIDIA GeForce RTX 4090 Laptop GPU
NVIDIA GeForce RTX 5090 Laptop GPU
NVIDIA GeForce RTX 5090 Laptop GPU
GPU BrandNVIDIANVIDIA
SeriesGeForce RTX 40GeForce RTX 50
Board PartnerOEM (varies by laptop model)OEM (varies by laptop model)
VRAM16 GB-33%24 GB
TierFlagshipFlagship
Memory TypeGDDR6GDDR7
Boost Clock2040 MHz-15%2407 MHz
Ray Tracing Supporttruetrue
TDP175 W175 W
ArchitectureAda Lovelace (AD103)Blackwell (GB203)
Slot WidthN/A (mobile GPU, soldered to laptop motherboard)N/A (mobile GPU, soldered to laptop motherboard)
CUDA Cores972810496
Configurable TGP Range150-175W150-175W
Upscaling / Frame GenDLSS 3 with Frame GenerationDLSS 4 with Multi Frame Generation

Verdict

NVIDIA GeForce RTX 4090 Laptop GPU

8 / 10 Expert Rating

Still a genuinely fast mobile GPU, and a smart buy at a discount now that Blackwell laptops have taken over the flagship spot.

NVIDIA GeForce RTX 5090 Laptop GPU

8.7 / 10 Expert Rating

The fastest mobile GPU available, but it needs a $4,000+ chassis with serious cooling to hit its rated clocks.

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