NVIDIA GeForce RTX 5080 vs NVIDIA GeForce RTX 3080 Ti 20 GB

VS

NVIDIA GeForce RTX 5080

NVIDIA GeForce RTX 3080 Ti 20 GB

We compared two Desktop platform GPUs: 16GB VRAM GeForce RTX 5080 and 20GB VRAM GeForce RTX 3080 Ti 20 GB to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce RTX 5080 's Advantages

Released 3 years late

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

Larger VRAM bandwidth (973.8GB/s vs 760.3GB/s)

512 additional rendering cores

NVIDIA GeForce RTX 3080 Ti 20 GB 's Advantages

More VRAM (20GB vs 16GB)

Score

Benchmark

FP32 (float)

GeForce RTX 5080 +58%

54.19 TFLOPS

GeForce RTX 3080 Ti 20 GB

34.1 TFLOPS

GeForce RTX 5080

VS

GeForce RTX 3080 Ti 20 GB

Graphics Card

Jan 2025

Release Date

Jan 2022

GeForce 50

Generation

GeForce 30

Desktop

Type

Desktop

PCIe 5.0 x16

Bus Interface

PCIe 4.0 x16

Clock Speeds

2235 MHz

Base Clock

1335 MHz

2520 MHz

Boost Clock

1665 MHz

2400 MHz

Memory Clock

1188 MHz

Memory

16GB

Memory Size

20GB

GDDR7

Memory Type

GDDR6X

256bit

Memory Bus

320bit

973.8GB/s

Bandwidth

760.3GB/s

Render Config

-

84

SM Count

80

10752

Shading Units

10240

336

TMUs

320

128

ROPs

112

336

Tensor Cores

320

84

RT Cores

80

128 KB (per SM)

L1 Cache

128 KB (per SM)

64 MB

L2 Cache

6 MB

-

Theoretical Performance

322.6 GPixel/s

Pixel Rate

186.5 GPixel/s

846.7 GTexel/s

Texture Rate

532.8 GTexel/s

54.19 TFLOPS

FP16 (half)

34.10 TFLOPS

54.19 TFLOPS

FP32 (float)

34.10 TFLOPS

846.7 GFLOPS

FP64 (double)

532.8 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

GA102-225-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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