NVIDIA GeForce GTX 660 vs NVIDIA GeForce 9400 GT

VS

NVIDIA GeForce GTX 660 NVIDIA GeForce 9400 GT

We compared two Desktop platform GPUs: 2GB VRAM GeForce GTX 660 and 128MB VRAM GeForce 9400 GT 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

Larger VRAM bandwidth (144.2GB/s vs 9.600GB/s)

944 additional rendering cores

NVIDIA GeForce 9400 GT 's Advantages

Lower TDP (50W vs 140W)

Score

Benchmark

FP32 (float)

GeForce GTX 660 +6731%

1.981 TFLOPS

GeForce 9400 GT

0.029 TFLOPS

GeForce GTX 660

VS

GeForce 9400 GT

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

600 MHz

Memory

2GB

Memory Size

128MB

GDDR5

Memory Type

DDR2

192bit

Memory Bus

64bit

144.2GB/s

Bandwidth

9.600GB/s

Render Config

-

SM Count

2

-

Compute Units

-

960

Shading Units

16

80

TMUs

8

24

ROPs

4

-

Tensor Cores

-

RT Cores

-

16 KB (per SMX)

L1 Cache

-

384 KB

L2 Cache

16 KB

Theoretical Performance

20.64 GPixel/s

Pixel Rate

1.836 GPixel/s

82.56 GTexel/s

Texture Rate

3.672 GTexel/s

-

FP16 (half)

-

1.981 TFLOPS

FP32 (float)

29.38 GFLOPS

82.56 GFLOPS

FP64 (double)

-

Graphics Processor

GK106

GPU Name

G86

GK106-400-A1

GPU Variant

-

Kepler

Architecture

Tesla

TSMC

Foundry

TSMC

28 nm

Process Size

80 nm

2.54 billion

Transistors

0.21 billion

221 mm²

Die Size

127 mm²

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 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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