NVIDIA GeForce GTX 1080 vs NVIDIA GeForce GTX 660 OEM

VS

NVIDIA GeForce GTX 1080 NVIDIA GeForce GTX 660 OEM

We compared two Desktop platform GPUs: 8GB VRAM GeForce GTX 1080 and 1536MB VRAM GeForce GTX 660 OEM to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce GTX 1080 's Advantages

Released 3 years and 9 months late

Boost Clock has increased by 95% (1733MHz vs 888MHz)

More VRAM (8GB vs 1GB)

Larger VRAM bandwidth (320.3GB/s vs 134.4GB/s)

1408 additional rendering cores

NVIDIA GeForce GTX 660 OEM 's Advantages

Lower TDP (130W vs 180W)

Score

Benchmark

FP32 (float)

GeForce GTX 1080 +333%

8.873 TFLOPS

GeForce GTX 660 OEM

2.046 TFLOPS

GeForce GTX 1080

VS

GeForce GTX 660 OEM

Graphics Card

May 2016

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

823 MHz

1733 MHz

Boost Clock

888 MHz

1251 MHz

Memory Clock

1400 MHz

Memory

8GB

Memory Size

1536MB

GDDR5X

Memory Type

GDDR5

256bit

Memory Bus

192bit

320.3GB/s

Bandwidth

134.4GB/s

Render Config

20

SM Count

-

Compute Units

-

2560

Shading Units

1152

160

TMUs

96

64

ROPs

24

-

Tensor Cores

-

RT Cores

-

48 KB (per SM)

L1 Cache

16 KB (per SMX)

2 MB

L2 Cache

384 KB

Theoretical Performance

110.9 GPixel/s

Pixel Rate

21.31 GPixel/s

277.3 GTexel/s

Texture Rate

85.25 GTexel/s

138.6 GFLOPS

FP16 (half)

-

8.873 TFLOPS

FP32 (float)

2.046 TFLOPS

277.3 GFLOPS

FP64 (double)

85.25 GFLOPS

Graphics Processor

GP104

GPU Name

GK104

GP104-400-A1

GPU Variant

GK104-200-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

Board Design

180W

TDP

130W

450 W

Suggested PSU

300 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

1x 6-pin

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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