GeForce GTX 660 OEM and GeForce GTX 550 Ti - video card comparison

GeForce GTX 660 OEM

GeForce GTX 550 Ti

Architecture

Kepler (2012−2018)

Fermi (2010−2014)

GPU code name

GK104

GF116

Market segment

Desktop

Desktop

Release date

August 2012

March 2011

Bus support

-

16x PCI-E 2.0

Interface

PCIe 3.0 x16

PCIe 2.0 x16

Supplementary power connectors

1x 6-pin

One 6-pin

SLI options

-

+

Boost clock speed

888 MHz

-

Core clock speed

823 MHz

900 MHz

CUDA cores

-

192

Floating-point performance

2,046 gflops

691.2 gflops

Manufacturing process technology

28 nm

40 nm

Number of transistors

3,540 million

1,170 million

Pipelines / CUDA cores

1152

192

Power consumption (TDP)

130 Watt

116 Watt

Maximum GPU temperature

-

100 °C

Texture fill rate

85.25

28.8 billion/sec

Memory type

GDDR5

GDDR5

Maximum RAM amount

2 GB

2 GB

Memory bus width

256 Bit

192 Bit

Memory clock speed

5600 MHz

4.1 GB/s

Memory bandwidth

179.2 GB/s

98.4 GB/s

Display Connectors

2x DVI, 1x HDMI, 1x DisplayPort

Two Dual Link DVI-IMini HDMI

Multi monitor support

-

+

HDMI

+

+

Maximum VGA resolution

-

2048x1536

Audio input for HDMI

-

Internal

DirectX

12 (11_0)

12 (11_0)

CUDA

3.0

+

OpenCL

1.2

1.1

OpenGL

4.6

4.2

Shader Model

5.1

5.1

Vulkan

1.1.126

N/A