NVIDIA GeForce GTX 745 OEM vs NVIDIA GeForce GTX 660

VS

NVIDIA GeForce GTX 745 OEM

NVIDIA GeForce GTX 660

We compared two Desktop platform GPUs: 4GB VRAM GeForce GTX 745 OEM and 2GB VRAM GeForce GTX 660 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce GTX 745 OEM 's Advantages

Released 1 years and 5 months late

More VRAM (4GB vs 2GB)

Lower TDP (55W vs 140W)

NVIDIA GeForce GTX 660 's Advantages

Boost Clock1032MHz

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

576 additional rendering cores

Score

Benchmark

FP32 (float)

GeForce GTX 745 OEM

0.793 TFLOPS

GeForce GTX 660 +149%

1.981 TFLOPS

Blender

GeForce GTX 745 OEM

54

GeForce GTX 660 +105%

111

OctaneBench

GeForce GTX 745 OEM

16

GeForce GTX 660 +68%

27

GeForce GTX 745 OEM

VS

GeForce GTX 660

Graphics Card

Feb 2014

Release Date

Sep 2012

GeForce 700

Generation

GeForce 600

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

Base Clock

980 MHz

-

Boost Clock

1032 MHz

900 MHz

Memory Clock

1502 MHz

Memory

4GB

Memory Size

2GB

DDR3

Memory Type

GDDR5

128bit

Memory Bus

192bit

28.80GB/s

Bandwidth

144.2GB/s

Render Config

-

384

Shading Units

960

24

TMUs

80

16

ROPs

24

-

64 KB (per SMM)

L1 Cache

16 KB (per SMX)

2 MB

L2 Cache

384 KB

-

Theoretical Performance

16.53 GPixel/s

Pixel Rate

20.64 GPixel/s

24.79 GTexel/s

Texture Rate

82.56 GTexel/s

-

793.3 GFLOPS

FP32 (float)

1.981 TFLOPS

24.79 GFLOPS

FP64 (double)

82.56 GFLOPS

Board Design

55W

TDP

140W

250 W

Suggested PSU

300 W

1x DVI 1x HDMI 2.0 1x VGA

Outputs

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

None

Power Connectors

1x 6-pin

Graphics Processor

GM107

GPU Name

GK106

GM107-220-A2

GPU Variant

GK106-400-A1

Maxwell

Architecture

Kepler

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

1.87 billion

Transistors

2.54 billion

148 mm²

Die Size

221 mm²

Graphics Features

12 (11_0)

DirectX

12 (11_0)

4.6

OpenGL

4.6

3.0

OpenCL

3.0

1.3

Vulkan

1.1

5.0

CUDA

3.0

5.1

Shader Model

5.1

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