NVIDIA GeForce RTX 3080 Ti 20 GB vs NVIDIA GeForce GTX 1660 Ti

VS

NVIDIA GeForce RTX 3080 Ti 20 GB

NVIDIA GeForce GTX 1660 Ti

We compared two Desktop platform GPUs: 20GB VRAM GeForce RTX 3080 Ti 20 GB and 6GB VRAM GeForce GTX 1660 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 2 years and 11 months late

More VRAM (20GB vs 6GB)

Larger VRAM bandwidth (760.3GB/s vs 288.0GB/s)

8704 additional rendering cores

NVIDIA GeForce GTX 1660 Ti 's Advantages

Boost Clock has increased by 6% (1770MHz vs 1665MHz)

Lower TDP (120W vs 350W)

Score

Benchmark

FP32 (float)

GeForce RTX 3080 Ti 20 GB +527%

34.1 TFLOPS

GeForce GTX 1660 Ti

5.437 TFLOPS

Blender

GeForce RTX 3080 Ti 20 GB +629%

5956

GeForce GTX 1660 Ti

817

OctaneBench

GeForce RTX 3080 Ti 20 GB +408%

641

GeForce GTX 1660 Ti

126

GeForce RTX 3080 Ti 20 GB

VS

GeForce GTX 1660 Ti

Graphics Card

Jan 2022

Release Date

Feb 2019

GeForce 30

Generation

GeForce 16

Desktop

Type

Desktop

PCIe 4.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

1335 MHz

Base Clock

1500 MHz

1665 MHz

Boost Clock

1770 MHz

1188 MHz

Memory Clock

1500 MHz

Memory

20GB

Memory Size

6GB

GDDR6X

Memory Type

GDDR6

320bit

Memory Bus

192bit

760.3GB/s

Bandwidth

288.0GB/s

Render Config

-

80

SM Count

24

10240

Shading Units

1536

320

TMUs

96

112

ROPs

48

320

Tensor Cores

-

80

RT Cores

-

128 KB (per SM)

L1 Cache

64 KB (per SM)

6 MB

L2 Cache

1536 KB

-

Theoretical Performance

186.5 GPixel/s

Pixel Rate

84.96 GPixel/s

532.8 GTexel/s

Texture Rate

169.9 GTexel/s

34.10 TFLOPS

FP16 (half)

10.87 TFLOPS

34.10 TFLOPS

FP32 (float)

5.437 TFLOPS

532.8 GFLOPS

FP64 (double)

169.9 GFLOPS

Board Design

350W

TDP

120W

750 W

Suggested PSU

300 W

1x HDMI 2.1 3x DisplayPort 1.4a

Outputs

1x DVI 1x HDMI 2.0 1x DisplayPort 1.4a

1x 12-pin

Power Connectors

1x 8-pin

Graphics Processor

GA102

GPU Name

TU116

GA102-225-A1

GPU Variant

TU116-400-A1

Ampere

Architecture

Turing

Samsung

Foundry

TSMC

8 nm

Process Size

12 nm

28.3 billion

Transistors

6.6 billion

628 mm²

Die Size

284 mm²

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

7.5

6.6

Shader Model

6.6

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