NVIDIA GeForce GTX 1080 Ti 12 GB vs NVIDIA GeForce RTX 3080 Ti 20 GB

VS

NVIDIA GeForce GTX 1080 Ti 12 GB

NVIDIA GeForce RTX 3080 Ti 20 GB

We compared two Desktop platform GPUs: 12GB VRAM GeForce GTX 1080 Ti 12 GB 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 GTX 1080 Ti 12 GB 's Advantages

Boost Clock has increased by 0% (1670MHz vs 1665MHz)

Lower TDP (250W vs 350W)

NVIDIA GeForce RTX 3080 Ti 20 GB 's Advantages

More VRAM (20GB vs 12GB)

Larger VRAM bandwidth (760.3GB/s vs 528.4GB/s)

7040 additional rendering cores

Score

Benchmark

FP32 (float)

GeForce GTX 1080 Ti 12 GB

10.69 TFLOPS

GeForce RTX 3080 Ti 20 GB +218%

34.1 TFLOPS

GeForce GTX 1080 Ti 12 GB

VS

GeForce RTX 3080 Ti 20 GB

Graphics Card

Unknown

Release Date

Jan 2022

GeForce 10

Generation

GeForce 30

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 4.0 x16

Clock Speeds

1557 MHz

Base Clock

1335 MHz

1670 MHz

Boost Clock

1665 MHz

1376 MHz

Memory Clock

1188 MHz

Memory

12GB

Memory Size

20GB

GDDR5X

Memory Type

GDDR6X

384bit

Memory Bus

320bit

528.4GB/s

Bandwidth

760.3GB/s

Render Config

-

25

SM Count

80

3200

Shading Units

10240

200

TMUs

320

80

ROPs

112

-

Tensor Cores

320

-

RT Cores

80

48 KB (per SM)

L1 Cache

128 KB (per SM)

0 MB

L2 Cache

6 MB

-

Theoretical Performance

133.6 GPixel/s

Pixel Rate

186.5 GPixel/s

334.0 GTexel/s

Texture Rate

532.8 GTexel/s

167.0 GFLOPS

FP16 (half)

34.10 TFLOPS

10.69 TFLOPS

FP32 (float)

34.10 TFLOPS

334.0 GFLOPS

FP64 (double)

532.8 GFLOPS

Board Design

250W

TDP

350W

600 W

Suggested PSU

750 W

1x HDMI 2.0 3x DisplayPort 1.4a

Outputs

1x HDMI 2.1 3x DisplayPort 1.4a

1x 6-pin + 1x 8-pin

Power Connectors

1x 12-pin

Graphics Processor

GP102

GPU Name

GA102

-

GPU Variant

GA102-225-A1

Pascal

Architecture

Ampere

TSMC

Foundry

Samsung

16 nm

Process Size

8 nm

11.8 billion

Transistors

28.3 billion

471 mm²

Die Size

628 mm²

Graphics Features

12 (12_1)

DirectX

12 Ultimate (12_2)

4.6

OpenGL

4.6

3.0

OpenCL

3.0

1.3

Vulkan

1.3

6.1

CUDA

8.6

6.7

Shader Model

6.6

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