NVIDIA GeForce GTX 1080 Ti vs NVIDIA GeForce GTX 660

VS

NVIDIA GeForce GTX 1080 Ti

NVIDIA GeForce GTX 660

We compared two Desktop platform GPUs: 11GB VRAM GeForce GTX 1080 Ti and 2GB VRAM GeForce GTX 660 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce GTX 1080 Ti 's Advantages

Released 4 years and 6 months late

Boost Clock has increased by 53% (1582MHz vs 1032MHz)

More VRAM (11GB vs 2GB)

Larger VRAM bandwidth (484.4GB/s vs 144.2GB/s)

2624 additional rendering cores

NVIDIA GeForce GTX 660 's Advantages

Lower TDP (140W vs 250W)

Score

Benchmark

FP32 (float)

GeForce GTX 1080 Ti +472%

11.34 TFLOPS

GeForce GTX 660

1.981 TFLOPS

3DMark Time Spy

GeForce GTX 1080 Ti +654%

9873

GeForce GTX 660

1308

GeForce GTX 1080 Ti

VS

GeForce GTX 660

Graphics Card

Mar 2017

Release Date

Sep 2012

GeForce 10

Generation

GeForce 600

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

1481 MHz

Base Clock

980 MHz

1582 MHz

Boost Clock

1032 MHz

1376 MHz

Memory Clock

1502 MHz

Memory

11GB

Memory Size

2GB

GDDR5X

Memory Type

GDDR5

352bit

Memory Bus

192bit

484.4GB/s

Bandwidth

144.2GB/s

Render Config

-

28

SM Count

-

3584

Shading Units

960

224

TMUs

80

88

ROPs

24

-

48 KB (per SM)

L1 Cache

16 KB (per SMX)

0 MB

L2 Cache

384 KB

-

Theoretical Performance

139.2 GPixel/s

Pixel Rate

20.64 GPixel/s

354.4 GTexel/s

Texture Rate

82.56 GTexel/s

177.2 GFLOPS

FP16 (half)

-

11.34 TFLOPS

FP32 (float)

1.981 TFLOPS

354.4 GFLOPS

FP64 (double)

82.56 GFLOPS

Board Design

250W

TDP

140W

600 W

Suggested PSU

300 W

1x HDMI 2.0 3x DisplayPort 1.4a

Outputs

2x DVI 1x HDMI 1.4a 1x DisplayPort 1.2

1x 6-pin + 1x 8-pin

Power Connectors

1x 6-pin

Graphics Processor

GP102

GPU Name

GK106

GP102-350-K1-A1

GPU Variant

GK106-400-A1

Pascal

Architecture

Kepler

TSMC

Foundry

TSMC

16 nm

Process Size

28 nm

11.8 billion

Transistors

2.54 billion

471 mm²

Die Size

221 mm²

Graphics Features

12 (12_1)

DirectX

12 (11_0)

4.6

OpenGL

4.6

3.0

OpenCL

3.0

1.3

Vulkan

1.1

6.1

CUDA

3.0

6.4

Shader Model

5.1

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