NVIDIA GeForce RTX 4090 vs NVIDIA GeForce RTX 4080 16 GB

VS

NVIDIA GeForce RTX 4090

NVIDIA GeForce RTX 4080 16 GB

We compared two Desktop platform GPUs: 24GB VRAM GeForce RTX 4090 and 16GB VRAM GeForce RTX 4080 16 GB to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce RTX 4090 's Advantages

Boost Clock has increased by 1% (2520MHz vs 2505MHz)

More VRAM (24GB vs 16GB)

Larger VRAM bandwidth (1.01TB/s vs 716.8GB/s)

6656 additional rendering cores

NVIDIA GeForce RTX 4080 16 GB 's Advantages

Lower TDP (320W vs 450W)

Score

Benchmark

FP32 (float)

GeForce RTX 4090 +69%

82.58 TFLOPS

GeForce RTX 4080 16 GB

48.74 TFLOPS

GeForce RTX 4090

VS

GeForce RTX 4080 16 GB

Graphics Card

Sep 2022

Release Date

Sep 2022

GeForce 40

Generation

GeForce 40

Desktop

Type

Desktop

PCIe 4.0 x16

Bus Interface

PCIe 4.0 x16

Clock Speeds

2235 MHz

Base Clock

2205 MHz

2520 MHz

Boost Clock

2505 MHz

1313 MHz

Memory Clock

1400 MHz

Memory

24GB

Memory Size

16GB

GDDR6X

Memory Type

GDDR6X

384bit

Memory Bus

256bit

1.01TB/s

Bandwidth

716.8GB/s

Render Config

-

128

SM Count

76

16384

Shading Units

9728

512

TMUs

304

176

ROPs

112

512

Tensor Cores

304

128

RT Cores

76

128 KB (per SM)

L1 Cache

128 KB (per SM)

72 MB

L2 Cache

64 MB

-

Theoretical Performance

443.5 GPixel/s

Pixel Rate

280.6 GPixel/s

1290 GTexel/s

Texture Rate

761.5 GTexel/s

82.58 TFLOPS

FP16 (half)

48.74 TFLOPS

82.58 TFLOPS

FP32 (float)

48.74 TFLOPS

1290 GFLOPS

FP64 (double)

761.5 GFLOPS

Board Design

450W

TDP

320W

850 W

Suggested PSU

700 W

1x HDMI 2.13x DisplayPort 1.4a

Outputs

1x HDMI 2.1 3x DisplayPort 1.4a

1x 16-pin

Power Connectors

1x 16-pin

Graphics Processor

AD102

GPU Name

AD103

AD102-300-A1

GPU Variant

AD103-300-A1

Ada Lovelace

Architecture

Ada Lovelace

TSMC

Foundry

TSMC

5 nm

Process Size

4 nm

76.3 billion

Transistors

45.9 billion

609 mm²

Die Size

379 mm²

Graphics Features

12 Ultimate (12_2)

DirectX

12 Ultimate (12_2)

4.6

OpenGL

4.6

3.0

OpenCL

3.0

1.3

Vulkan

1.3

8.9

CUDA

8.9

6.8

Shader Model

6.6

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