NVIDIA GeForce RTX 3080 Ti 20 GB vs NVIDIA GeForce GTX 1080 Ti

VS

NVIDIA GeForce RTX 3080 Ti 20 GB NVIDIA GeForce GTX 1080 Ti

We compared two Desktop platform GPUs: 20GB VRAM GeForce RTX 3080 Ti 20 GB and 11GB VRAM GeForce GTX 1080 Ti 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

Released 4 years and 10 months late

Boost Clock has increased by 5% (1665MHz vs 1582MHz)

More VRAM (20GB vs 11GB)

Larger VRAM bandwidth (760.3GB/s vs 484.4GB/s)

6656 additional rendering cores

NVIDIA GeForce GTX 1080 Ti 's Advantages

Lower TDP (250W vs 350W)

Score

Benchmark

FP32 (float)

GeForce RTX 3080 Ti 20 GB +200%

34.1 TFLOPS

GeForce GTX 1080 Ti

11.34 TFLOPS

GeForce RTX 3080 Ti 20 GB

VS

GeForce GTX 1080 Ti

Graphics Card

Jan 2022

Release Date

Mar 2017

GeForce 30

Generation

GeForce 10

Desktop

Type

Desktop

PCIe 4.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

1335 MHz

Base Clock

1481 MHz

1665 MHz

Boost Clock

1582 MHz

1188 MHz

Memory Clock

1376 MHz

Memory

20GB

Memory Size

11GB

GDDR6X

Memory Type

GDDR5X

320bit

Memory Bus

352bit

760.3GB/s

Bandwidth

484.4GB/s

Render Config

80

SM Count

28

-

Compute Units

-

10240

Shading Units

3584

320

TMUs

224

112

ROPs

88

320

Tensor Cores

-

80

RT Cores

-

128 KB (per SM)

L1 Cache

48 KB (per SM)

6 MB

L2 Cache

0 MB

Theoretical Performance

186.5 GPixel/s

Pixel Rate

139.2 GPixel/s

532.8 GTexel/s

Texture Rate

354.4 GTexel/s

34.10 TFLOPS

FP16 (half)

177.2 GFLOPS

34.10 TFLOPS

FP32 (float)

11.34 TFLOPS

532.8 GFLOPS

FP64 (double)

354.4 GFLOPS

Graphics Processor

GA102

GPU Name

GP102

GA102-225-A1

GPU Variant

GP102-350-K1-A1

Ampere

Architecture

Pascal

Samsung

Foundry

TSMC

8 nm

Process Size

16 nm

28.3 billion

Transistors

11.8 billion

628 mm²

Die Size

471 mm²

Board Design

350W

TDP

250W

750 W

Suggested PSU

600 W

1x HDMI 2.1 3x DisplayPort 1.4a

Outputs

1x HDMI 2.0 3x DisplayPort 1.4a

1x 12-pin

Power Connectors

1x 6-pin + 1x 8-pin

Graphics Features

12 Ultimate (12_2)

DirectX

12 (12_1)

4.6

OpenGL

4.6

3.0

OpenCL

3.0

1.3

Vulkan

1.3

8.6

CUDA

6.1

6.6

Shader Model

6.4

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