NVIDIA GeForce GTX 660: GPU Specs & Benchmarks

The GeForce GTX 660 is a graphics card by NVIDIA, built on the 28 nm process and based on the GK106 graphics processor (GPU). The video card specifications and performance tests (benchmarks) are listed below.

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Graphics Processor (GPU)

GPU Name

GK106

Model number

GK106-400-A1

Architecture

Kepler

Foundry

TSMC

Process Size

28 nm

Transistors

2,540 million

Die Size

221 mm²

Graphics Card

Release Date

Sep 6th, 2012

Family

GeForce 600

Production

End-of-life

Launch Price

229 USD

Predecessor

GeForce 500

Bus Interface

PCIe 3.0 x16

Memory

Memory Size

2 GB

Memory Type

GDDR5

Memory Bus

192 bit

Bandwidth

144.2 GB/s

Performance

Pixel fillrate

20.64 GPixel/s

Texture fillrate

82.56 GTexel/s

FP32 (float) performance

1.981 TFLOPS

FP64 (double) performance

82.56 GFLOPS (1:24)

Clock Speeds

Base Clock

980 MHz

Boost Clock

1032 MHz

Memory Clock

1502 MHz
6 Gbps effective

Render Config

Shading Units

960

TMUs

80

ROPs

24

L1 Cache

16 KB (per SMX)

L2 Cache

384 KB

Board Design

Slot Width

Dual-slot

Length

241 mm
9.5 inches

Thermal design power (TDP)

140 W

Suggested PSU

300 W

Display Connectors

2x DVI
1x HDMI
1x DisplayPort

Power Connectors

1x 6-pin

Board Number

P2030

API support

DirectX

12 (11_0)

OpenGL

4.6

OpenCL

3.0

Vulkan

1.1

Shader Model

5.1

CUDA

3.0