NVIDIA GeForce RTX 4090 vs NVIDIA GeForce RTX 4080 Ti

VS

NVIDIA GeForce RTX 4090 NVIDIA GeForce RTX 4080 Ti

We compared two Desktop platform GPUs: 24GB VRAM GeForce RTX 4090 and 20GB VRAM GeForce RTX 4080 Ti 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 5% (2520MHz vs 2400MHz)

More VRAM (24GB vs 20GB)

Larger VRAM bandwidth (1008GB/s vs 848.0GB/s)

2304 additional rendering cores

NVIDIA GeForce RTX 4080 Ti 's Advantages

Lower TDP (400W vs 450W)

Score

Benchmark

FP32 (float)

GeForce RTX 4090 +22%

82.58 TFLOPS

GeForce RTX 4080 Ti

67.58 TFLOPS

GeForce RTX 4090

VS

GeForce RTX 4080 Ti

Graphics Card

Sep 2022

Release Date

Unknown

GeForce 40

Generation

GeForce 40

Desktop

Type

Desktop

PCIe 4.0 x16

Bus Interface

PCIe 4.0 x16

Clock Speeds

2235 MHz

Base Clock

2100 MHz

2520 MHz

Boost Clock

2400 MHz

1313 MHz

Memory Clock

1325 MHz

Memory

24GB

Memory Size

20GB

GDDR6X

Memory Type

GDDR6X

384bit

Memory Bus

320bit

1008GB/s

Bandwidth

848.0GB/s

Render Config

128

SM Count

110

-

Compute Units

-

16384

Shading Units

14080

512

TMUs

440

176

ROPs

144

512

Tensor Cores

440

128

RT Cores

110

128 KB (per SM)

L1 Cache

128 KB (per SM)

72 MB

L2 Cache

80 MB

Theoretical Performance

443.5 GPixel/s

Pixel Rate

345.6 GPixel/s

1290 GTexel/s

Texture Rate

1056 GTexel/s

82.58 TFLOPS

FP16 (half)

67.58 TFLOPS

82.58 TFLOPS

FP32 (float)

67.58 TFLOPS

1290 GFLOPS

FP64 (double)

1056 GFLOPS

Graphics Processor

AD102

GPU Name

AD102

AD102-300-A1

GPU Variant

AD102-225-A1

Ada Lovelace

Architecture

Ada Lovelace

TSMC

Foundry

TSMC

5 nm

Process Size

5 nm

76.3 billion

Transistors

76.3 billion

609 mm²

Die Size

609 mm²

Board Design

450W

TDP

400W

850 W

Suggested PSU

800 W

1x HDMI 2.1 3x DisplayPort 1.4a

Outputs

1x HDMI 2.1 3x DisplayPort 1.4a

1x 16-pin

Power Connectors

1x 16-pin

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

6.7

Shader Model

6.7

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