NVIDIA GeForce GTX 660 Rev. 2 vs NVIDIA GeForce GTX 1080 11Gbps

VS

NVIDIA GeForce GTX 660 Rev. 2

NVIDIA GeForce GTX 1080 11Gbps

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

Main Differences

NVIDIA GeForce GTX 660 Rev. 2 's Advantages

Lower TDP (140W vs 180W)

NVIDIA GeForce GTX 1080 11Gbps 's Advantages

Released 2 years and 7 months late

Boost Clock has increased by 68% (1733MHz vs 1032MHz)

More VRAM (8GB vs 2GB)

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

1600 additional rendering cores

Score

Benchmark

FP32 (float)

GeForce GTX 660 Rev. 2

1.981 TFLOPS

GeForce GTX 1080 11Gbps +347%

8.873 TFLOPS

GeForce GTX 660 Rev. 2

VS

GeForce GTX 1080 11Gbps

Graphics Card

Sep 2014

Release Date

Apr 2017

GeForce 600

Generation

GeForce 10

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

980 MHz

Base Clock

1607 MHz

1032 MHz

Boost Clock

1733 MHz

1502 MHz

Memory Clock

1376 MHz

Memory

2GB

Memory Size

8GB

GDDR5

Memory Type

GDDR5X

192bit

Memory Bus

256bit

144.2GB/s

Bandwidth

352.3GB/s

Render Config

-

SM Count

20

960

Shading Units

2560

80

TMUs

160

24

ROPs

64

-

16 KB (per SMX)

L1 Cache

48 KB (per SM)

384 KB

L2 Cache

2 MB

-

Theoretical Performance

20.64 GPixel/s

Pixel Rate

110.9 GPixel/s

82.56 GTexel/s

Texture Rate

277.3 GTexel/s

-

FP16 (half)

138.6 GFLOPS

1.981 TFLOPS

FP32 (float)

8.873 TFLOPS

82.56 GFLOPS

FP64 (double)

277.3 GFLOPS

Board Design

140W

TDP

180W

300 W

Suggested PSU

450 W

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

Outputs

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

1x 6-pin

Power Connectors

1x 8-pin

Graphics Processor

GK104

GPU Name

GP104

-

GPU Variant

GP104-410-A1

Kepler

Architecture

Pascal

TSMC

Foundry

TSMC

28 nm

Process Size

16 nm

3.54 billion

Transistors

7.2 billion

294 mm²

Die Size

314 mm²

Graphics Features

12 (11_0)

DirectX

12 (12_1)

4.6

OpenGL

4.6

3.0

OpenCL

3.0

1.1

Vulkan

1.3

3.0

CUDA

6.1

5.1

Shader Model

6.4

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