NVIDIA GeForce GTX 660 vs NVIDIA GeForce 9400 GT Rev. 2

VS

NVIDIA GeForce GTX 660

NVIDIA GeForce 9400 GT Rev. 2

We compared two Desktop platform GPUs: 2GB VRAM GeForce GTX 660 and 512MB VRAM GeForce 9400 GT Rev. 2 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce GTX 660 's Advantages

Released 4 years and 1 months late

Boost Clock1032MHz

More VRAM (2GB vs 512GB)

Larger VRAM bandwidth (144.2GB/s vs 12.80GB/s)

944 additional rendering cores

NVIDIA GeForce 9400 GT Rev. 2 's Advantages

Lower TDP (50W vs 140W)

Score

Benchmark

FP32 (float)

GeForce GTX 660 +4302%

1.981 TFLOPS

GeForce 9400 GT Rev. 2

0.045 TFLOPS

GeForce GTX 660

VS

GeForce 9400 GT Rev. 2

Graphics Card

Sep 2012

Release Date

Aug 2008

GeForce 600

Generation

GeForce 9

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

400 MHz

Memory

2GB

Memory Size

512MB

GDDR5

Memory Type

GDDR3

192bit

Memory Bus

128bit

144.2GB/s

Bandwidth

12.80GB/s

Render Config

-

SM Count

2

960

Shading Units

16

80

TMUs

8

24

ROPs

4

-

16 KB (per SMX)

L1 Cache

-

384 KB

L2 Cache

32 KB

-

Theoretical Performance

20.64 GPixel/s

Pixel Rate

2.200 GPixel/s

82.56 GTexel/s

Texture Rate

4.400 GTexel/s

-

1.981 TFLOPS

FP32 (float)

44.80 GFLOPS

82.56 GFLOPS

FP64 (double)

-

Board Design

140W

TDP

50W

300 W

Suggested PSU

250 W

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

Outputs

1x DVI 1x VGA 1x S-Video

1x 6-pin

Power Connectors

None

Graphics Processor

GK106

GPU Name

G96C

GK106-400-A1

GPU Variant

-

Kepler

Architecture

Tesla

TSMC

Foundry

TSMC

28 nm

Process Size

55 nm

2.54 billion

Transistors

0.314 billion

221 mm²

Die Size

121 mm²

Graphics Features

12 (11_0)

DirectX

11.1 (10_0)

4.6

OpenGL

3.3

3.0

OpenCL

1.1

Vulkan

N/A

3.0

CUDA

1.1

5.1

Shader Model

4.0

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