NVIDIA GeForce 8400 vs NVIDIA GeForce 9400 GT Rev. 2

VS

NVIDIA GeForce 8400

NVIDIA GeForce 9400 GT Rev. 2

We compared two Desktop platform GPUs: 256MB VRAM GeForce 8400 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 8400 's Advantages

Lower TDP (25W vs 50W)

NVIDIA GeForce 9400 GT Rev. 2 's Advantages

Released 8 months late

More VRAM (512GB vs 256GB)

Larger VRAM bandwidth (12.80GB/s vs 8.000GB/s)

8 additional rendering cores

Score

Benchmark

FP32 (float)

GeForce 8400

0.021 TFLOPS

GeForce 9400 GT Rev. 2 +114%

0.045 TFLOPS

GeForce 8400

VS

GeForce 9400 GT Rev. 2

Graphics Card

Dec 2007

Release Date

Aug 2008

GeForce 8

Generation

GeForce 9

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

500 MHz

Memory Clock

400 MHz

Memory

256MB

Memory Size

512MB

DDR2

Memory Type

GDDR3

64bit

Memory Bus

128bit

8.000GB/s

Bandwidth

12.80GB/s

Render Config

-

1

SM Count

2

8

Shading Units

16

4

TMUs

8

4

ROPs

4

-

16 KB

L2 Cache

32 KB

-

Theoretical Performance

2.160 GPixel/s

Pixel Rate

2.200 GPixel/s

2.160 GTexel/s

Texture Rate

4.400 GTexel/s

-

20.80 GFLOPS

FP32 (float)

44.80 GFLOPS

-

Board Design

25W

TDP

50W

200 W

Suggested PSU

250 W

1x DVI 1x VGA 1x S-Video

Outputs

1x DVI 1x VGA 1x S-Video

None

Power Connectors

None

Graphics Processor

G98

GPU Name

G96C

-

Tesla

Architecture

Tesla

TSMC

Foundry

TSMC

65 nm

Process Size

55 nm

0.21 billion

Transistors

0.314 billion

86 mm²

Die Size

121 mm²

Graphics Features

11.1 (10_0)

DirectX

11.1 (10_0)

3.3

OpenGL

3.3

1.1

OpenCL

1.1

N/A

Vulkan

N/A

1.1

CUDA

1.1

4.0

Shader Model

4.0

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