GPU Wiki

GeForce RTX 4080 vs GeForce RTX 4090

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Key Differences

  • No game was measured on every one of these cards on one shared test system, so there is no speed comparison to make.
  • RTX 4090 has the most memory: 24 GB against 16 GB.
  • RTX 4090 has the most memory bandwidth: 1,010 GB/s against 716.8 GB/s.
  • RTX 4080 draws the least power: 320 W against 450 W.
Spec GeForce RTX 4080 GeForce RTX 4090
Overview
Product name NVIDIA GeForce RTX 4080 NVIDIA GeForce RTX 4090
Market price $2,089 Cheapest in stock · US · New retail Gigabyte Gaming OC · Amazon US · checked 8 hours ago $4,395 Last price seen · US · New retail MSI Gaming X Trio · Newegg US · last seen 2 weeks ago, not in stock now
Architecture Ada Lovelace Ada Lovelace
Generation / family GeForce RTX 40 Series GeForce RTX 40 Series
GPU codename AD103 AD102
Launch date 2022-11-16 2022-10-12
Market segment Desktop, High End in GeForce RTX 40 Series Desktop, Flagship in GeForce RTX 40 Series
Board type / entry type Reference GPU Reference GPU
GPU
Process node TSMC 5 nm TSMC 5 nm
Die size 379 mm² 609 mm²
Transistor count 45.9 billion 76.3 billion
GPU chip AD103 AD102
SM / multiprocessor count 76 128
CUDA Cores 9728 16384
Tensor Cores 304 512
RT Cores 76 128
ROPs 112 176
TMUs 304 512
Clocks
Base / Core clock 2,205 MHz 2,235 MHz
Boost clock 2,505 MHz 2,520 MHz
Memory clock 1,400 MHz 1,313 MHz
Memory
Memory size 16 GB 24 GB
Memory type GDDR6X GDDR6X
Memory bus width 256-bit 384-bit
Memory bandwidth 716.8 GB/s 1,010 GB/s
Bus / Interface
Bus interface PCIe 4.0 x16 PCIe 4.0 x16
AGP / PCI / PCIe distinction PCIe PCIe
Power
TDP / TBP / board power 320 W 450 W
Recommended PSU 750 W 850 W
Power connectors 1x PCIe Gen 5 16-pin 1x PCIe Gen 5 16-pin
Slot width Triple-slot, 310 mm length, 61 mm width Triple-slot, 304 mm length, 61 mm width
Display / Media
Display outputs 1x HDMI 2.1, 3x DisplayPort 1.4a 1x HDMI 2.1, 3x DisplayPort 1.4a
Features
DirectX support DirectX 12.2 DirectX 12.2
OpenGL support OpenGL 4.6 OpenGL 4.6
Vulkan support Vulkan 1.4 Vulkan 1.4
CUDA support 8.9 8.9
Shader Model 6.8 6.8
Ray tracing support Hardware RT units present Hardware RT units present
Performance / Benchmarks
FP32 throughput 48.74 TFLOPS 82.58 TFLOPS
FP16 throughput 48.74 TFLOPS 82.58 TFLOPS
Muted cells indicate unavailable, not applicable, or not directly comparable specifications.

DLAA counts as native resolution; DLSS, FSR and XeSS upscaling never do. A ray tracing setting without a readable on or off value is read as on.

Gaming benchmarks

Every card ran the same games at the same settings on the same test system. The index sets the fastest card to 100 using the eligible test runs.

No compatible approved gaming benchmark yet

Published observations exist, but no exact compatible game run is shared by every selected GPU. No result was estimated or filled in.