NVIDIA GeForce 9400 GT PCI vs NVIDIA GeForce 8400 GS

VS

NVIDIA GeForce 9400 GT PCI

NVIDIA GeForce 8400 GS

We compared two Desktop platform GPUs: 256MB VRAM GeForce 9400 GT PCI and 256MB VRAM GeForce 8400 GS to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce 9400 GT PCI 's Advantages

Released 1 years and 4 months late

Larger VRAM bandwidth (12.80GB/s vs 6.400GB/s)

NVIDIA GeForce 8400 GS 's Advantages

Lower TDP (40W vs 50W)

Score

Benchmark

FP32 (float)

GeForce 9400 GT PCI +55%

0.045 TFLOPS

GeForce 8400 GS

0.029 TFLOPS

GeForce 9400 GT PCI

VS

GeForce 8400 GS

Graphics Card

Aug 2008

Release Date

Apr 2007

GeForce 9

Generation

GeForce 8

Desktop

Type

Desktop

PCI

Bus Interface

PCIe 1.0 x16

Clock Speeds

-

400 MHz

Memory Clock

400 MHz

Memory

256MB

Memory Size

256MB

DDR2

Memory Type

DDR2

128bit

Memory Bus

64bit

12.80GB/s

Bandwidth

6.400GB/s

Render Config

-

2

SM Count

2

16

Shading Units

16

8

TMUs

8

4

ROPs

4

-

32 KB

L2 Cache

16 KB

-

Theoretical Performance

2.200 GPixel/s

Pixel Rate

1.836 GPixel/s

4.400 GTexel/s

Texture Rate

3.672 GTexel/s

-

44.80 GFLOPS

FP32 (float)

29.38 GFLOPS

-

Board Design

50W

TDP

40W

250 W

Suggested PSU

200 W

1x DVI 1x VGA 1x S-Video

Outputs

1x DVI 1x VGA 1x S-Video

None

Power Connectors

None

Graphics Processor

G96C

GPU Name

G86

-

GPU Variant

G86-213-A2

Tesla

Architecture

Tesla

TSMC

Foundry

TSMC

55 nm

Process Size

80 nm

0.314 billion

Transistors

0.21 billion

121 mm²

Die Size

127 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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