NVIDIA GeForce GTX 1080 11Gbps vs NVIDIA GeForce GTX 660 Ti

VS

NVIDIA GeForce GTX 1080 11Gbps

NVIDIA GeForce GTX 660 Ti

We compared two Desktop platform GPUs: 8GB VRAM GeForce GTX 1080 11Gbps and 2GB VRAM GeForce GTX 660 Ti to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce GTX 1080 11Gbps 's Advantages

Released 4 years and 8 months late

Boost Clock has increased by 77% (1733MHz vs 980MHz)

More VRAM (8GB vs 2GB)

Larger VRAM bandwidth (352.3GB/s vs 144.2GB/s)

1216 additional rendering cores

NVIDIA GeForce GTX 660 Ti 's Advantages

Lower TDP (150W vs 180W)

Score

Benchmark

FP32 (float)

GeForce GTX 1080 11Gbps +236%

8.873 TFLOPS

GeForce GTX 660 Ti

2.634 TFLOPS

GeForce GTX 1080 11Gbps

VS

GeForce GTX 660 Ti

Graphics Card

Apr 2017

Release Date

Aug 2012

GeForce 10

Generation

GeForce 600

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

1607 MHz

Base Clock

915 MHz

1733 MHz

Boost Clock

980 MHz

1376 MHz

Memory Clock

1502 MHz

Memory

8GB

Memory Size

2GB

GDDR5X

Memory Type

GDDR5

256bit

Memory Bus

192bit

352.3GB/s

Bandwidth

144.2GB/s

Render Config

-

20

SM Count

-

2560

Shading Units

1344

160

TMUs

112

64

ROPs

24

-

48 KB (per SM)

L1 Cache

16 KB (per SMX)

2 MB

L2 Cache

384 KB

-

Theoretical Performance

110.9 GPixel/s

Pixel Rate

27.44 GPixel/s

277.3 GTexel/s

Texture Rate

109.8 GTexel/s

138.6 GFLOPS

FP16 (half)

-

8.873 TFLOPS

FP32 (float)

2.634 TFLOPS

277.3 GFLOPS

FP64 (double)

109.8 GFLOPS

Board Design

180W

TDP

150W

450 W

Suggested PSU

450 W

1x DVI 1x HDMI 2.0 3x DisplayPort 1.4a

Outputs

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

1x 8-pin

Power Connectors

2x 6-pin

Graphics Processor

GP104

GPU Name

GK104

GP104-410-A1

GPU Variant

GK104-300-KD-A2

Pascal

Architecture

Kepler

TSMC

Foundry

TSMC

16 nm

Process Size

28 nm

7.2 billion

Transistors

3.54 billion

314 mm²

Die Size

294 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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