GeForce GTX 660 OEM and FireStream 9250 - video card comparison

GeForce GTX 660 OEM

FireStream 9250

Architecture

Kepler (2012−2018)

TeraScale (2005−2013)

GPU code name

GK104

RV770

Market segment

Desktop

Release date

August 2012

June 2008

Interface

PCIe 3.0 x16

PCIe 2.0 x16

Supplementary power connectors

1x 6-pin

Boost clock speed

888 MHz

Core clock speed

823 MHz

625 MHz

Floating-point performance

2,046 gflops

1,000.0 gflops

Manufacturing process technology

28 nm

55 nm

Number of transistors

3,540 million

956 million

Pipelines / CUDA cores

1152

800

Power consumption (TDP)

130 Watt

150 Watt

Texture fill rate

85.25

25.00

Memory type

GDDR5

GDDR3

Maximum RAM amount

2 GB

1 GB

Memory bus width

256 Bit

Memory clock speed

5600 MHz

1986 MHz

Memory bandwidth

179.2 GB/s

63.55 GB/s

Display Connectors

2x DVI, 1x HDMI, 1x DisplayPort

1x DVI

HDMI

DirectX

12 (11_0)

10.1 (10_1)

CUDA

3.0

OpenCL

1.2

1.1

OpenGL

4.6

3.3

Shader Model

5.1

4.1

Vulkan

1.1.126

N/A