NVIDIA GeForce RTX 3080 Ti 20 GB vs NVIDIA GeForce RTX 4090

VS

NVIDIA GeForce RTX 3080 Ti 20 GB

NVIDIA GeForce RTX 4090

We compared two Desktop platform GPUs: 20GB VRAM GeForce RTX 3080 Ti 20 GB and 24GB VRAM GeForce RTX 4090 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce RTX 3080 Ti 20 GB 's Advantages

Lower TDP (350W vs 450W)

NVIDIA GeForce RTX 4090 's Advantages

Released 8 months late

Boost Clock has increased by 51% (2520MHz vs 1665MHz)

More VRAM (24GB vs 20GB)

Larger VRAM bandwidth (1.01TB/s vs 760.3GB/s)

6144 additional rendering cores

Score

Benchmark

FP32 (float)

GeForce RTX 3080 Ti 20 GB

34.1 TFLOPS

GeForce RTX 4090 +142%

82.58 TFLOPS

Blender

GeForce RTX 3080 Ti 20 GB

5956

GeForce RTX 4090 +108%

12393

OctaneBench

GeForce RTX 3080 Ti 20 GB

641

GeForce RTX 4090 +98%

1274

GeForce RTX 3080 Ti 20 GB

VS

GeForce RTX 4090

Graphics Card

Jan 2022

Release Date

Sep 2022

GeForce 30

Generation

GeForce 40

Desktop

Type

Desktop

PCIe 4.0 x16

Bus Interface

PCIe 4.0 x16

Clock Speeds

1335 MHz

Base Clock

2235 MHz

1665 MHz

Boost Clock

2520 MHz

1188 MHz

Memory Clock

1313 MHz

Memory

20GB

Memory Size

24GB

GDDR6X

Memory Type

GDDR6X

320bit

Memory Bus

384bit

760.3GB/s

Bandwidth

1.01TB/s

Render Config

-

80

SM Count

128

10240

Shading Units

16384

320

TMUs

512

112

ROPs

176

320

Tensor Cores

512

80

RT Cores

128

128 KB (per SM)

L1 Cache

128 KB (per SM)

6 MB

L2 Cache

72 MB

-

Theoretical Performance

186.5 GPixel/s

Pixel Rate

443.5 GPixel/s

532.8 GTexel/s

Texture Rate

1290 GTexel/s

34.10 TFLOPS

FP16 (half)

82.58 TFLOPS

34.10 TFLOPS

FP32 (float)

82.58 TFLOPS

532.8 GFLOPS

FP64 (double)

1290 GFLOPS

Board Design

350W

TDP

450W

750 W

Suggested PSU

850 W

1x HDMI 2.1 3x DisplayPort 1.4a

Outputs

1x HDMI 2.13x DisplayPort 1.4a

1x 12-pin

Power Connectors

1x 16-pin

Graphics Processor

GA102

GPU Name

AD102

GA102-225-A1

GPU Variant

AD102-300-A1

Ampere

Architecture

Ada Lovelace

Samsung

Foundry

TSMC

8 nm

Process Size

5 nm

28.3 billion

Transistors

76.3 billion

628 mm²

Die Size

609 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

8.6

CUDA

8.9

6.6

Shader Model

6.8

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