NVIDIA GeForce GTX 660 Rev. 2 vs NVIDIA GeForce GT 440

VS

NVIDIA GeForce GTX 660 Rev. 2

NVIDIA GeForce GT 440

We compared two Desktop platform GPUs: 2GB VRAM GeForce GTX 660 Rev. 2 and 1024MB VRAM GeForce GT 440 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

Released 3 years and 7 months late

Boost Clock1032MHz

More VRAM (2GB vs 1024GB)

Larger VRAM bandwidth (144.2GB/s vs 28.80GB/s)

864 additional rendering cores

NVIDIA GeForce GT 440 's Advantages

Lower TDP (65W vs 140W)

Score

Benchmark

FP32 (float)

GeForce GTX 660 Rev. 2 +536%

1.981 TFLOPS

GeForce GT 440

0.311 TFLOPS

GeForce GTX 660 Rev. 2

VS

GeForce GT 440

Graphics Card

Sep 2014

Release Date

Feb 2011

GeForce 600

Generation

GeForce 400

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

980 MHz

Base Clock

-

1032 MHz

Boost Clock

-

1502 MHz

Memory Clock

900 MHz

Memory

2GB

Memory Size

1024MB

GDDR5

Memory Type

DDR3

192bit

Memory Bus

128bit

144.2GB/s

Bandwidth

28.80GB/s

Render Config

-

SM Count

2

960

Shading Units

96

80

TMUs

16

24

ROPs

4

-

16 KB (per SMX)

L1 Cache

64 KB (per SM)

384 KB

L2 Cache

256 KB

-

Theoretical Performance

20.64 GPixel/s

Pixel Rate

3.240 GPixel/s

82.56 GTexel/s

Texture Rate

12.96 GTexel/s

-

1.981 TFLOPS

FP32 (float)

311.0 GFLOPS

82.56 GFLOPS

FP64 (double)

25.92 GFLOPS

Board Design

140W

TDP

65W

300 W

Suggested PSU

250 W

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

Outputs

1x DVI 1x HDMI 1.3a 1x VGA

1x 6-pin

Power Connectors

None

Graphics Processor

GK104

GPU Name

GF108

-

GPU Variant

GF108-400-A1

Kepler

Architecture

Fermi

TSMC

Foundry

TSMC

28 nm

Process Size

40 nm

3.54 billion

Transistors

0.585 billion

294 mm²

Die Size

116 mm²

Graphics Features

12 (11_0)

DirectX

12 (11_0)

4.6

OpenGL

4.6

3.0

OpenCL

1.1

Vulkan

N/A

3.0

CUDA

2.1

5.1

Shader Model

5.1

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