NVIDIA GeForce RTX 5080 vs NVIDIA GeForce RTX 3090

VS

NVIDIA GeForce RTX 5080

NVIDIA GeForce RTX 3090

We compared two Desktop platform GPUs: 16GB VRAM GeForce RTX 5080 and 24GB VRAM GeForce RTX 3090 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce RTX 5080 's Advantages

Released 4 years and 4 months late

Boost Clock has increased by 49% (2520MHz vs 1695MHz)

Larger VRAM bandwidth (973.8GB/s vs 936.2GB/s)

256 additional rendering cores

NVIDIA GeForce RTX 3090 's Advantages

More VRAM (24GB vs 16GB)

Score

Benchmark

FP32 (float)

GeForce RTX 5080 +52%

54.19 TFLOPS

GeForce RTX 3090

35.58 TFLOPS

GeForce RTX 5080

VS

GeForce RTX 3090

Graphics Card

Jan 2025

Release Date

Sep 2020

GeForce 50

Generation

GeForce 30

Desktop

Type

Desktop

PCIe 5.0 x16

Bus Interface

PCIe 4.0 x16

Clock Speeds

2235 MHz

Base Clock

1395 MHz

2520 MHz

Boost Clock

1695 MHz

2400 MHz

Memory Clock

1219 MHz

Memory

16GB

Memory Size

24GB

GDDR7

Memory Type

GDDR6X

256bit

Memory Bus

384bit

973.8GB/s

Bandwidth

936.2GB/s

Render Config

-

84

SM Count

82

10752

Shading Units

10496

336

TMUs

328

128

ROPs

112

336

Tensor Cores

328

84

RT Cores

82

128 KB (per SM)

L1 Cache

128 KB (per SM)

64 MB

L2 Cache

6 MB

-

Theoretical Performance

322.6 GPixel/s

Pixel Rate

189.8 GPixel/s

846.7 GTexel/s

Texture Rate

556.0 GTexel/s

54.19 TFLOPS

FP16 (half)

35.58 TFLOPS

54.19 TFLOPS

FP32 (float)

35.58 TFLOPS

846.7 GFLOPS

FP64 (double)

556.0 GFLOPS

Board Design

350W

TDP

350W

750 W

Suggested PSU

750 W

1x HDMI 2.1 3x DisplayPort 2.1a

Outputs

1x HDMI 2.1 3x DisplayPort 1.4a

1x 16-pin

Power Connectors

1x 12-pin

Graphics Processor

GB203

GPU Name

GA102

GB203-400-A1

GPU Variant

GA102-300-A1

Blackwell 2.0

Architecture

Ampere

TSMC

Foundry

Samsung

0

Process Size

8 nm

Unknown

Transistors

28.3 billion

377 mm²

Die Size

628 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

10.1

CUDA

8.6

6.8

Shader Model

6.6

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