NVIDIA GeForce 8400 GS Rev. 3 vs NVIDIA GeForce GT 420 OEM

VS

NVIDIA GeForce 8400 GS Rev. 3

NVIDIA GeForce GT 420 OEM

We compared two Desktop platform GPUs: 512MB VRAM GeForce 8400 GS Rev. 3 and 1024MB VRAM GeForce GT 420 OEM to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce 8400 GS Rev. 3 's Advantages

Lower TDP (25W vs 50W)

NVIDIA GeForce GT 420 OEM 's Advantages

More VRAM (1024GB vs 512GB)

Larger VRAM bandwidth (28.80GB/s vs 6.400GB/s)

40 additional rendering cores

Score

Benchmark

FP32 (float)

GeForce 8400 GS Rev. 3

0.02 TFLOPS

GeForce GT 420 OEM +570%

0.134 TFLOPS

GeForce 8400 GS Rev. 3

VS

GeForce GT 420 OEM

Graphics Card

Jul 2010

Release Date

Sep 2010

GeForce 8

Generation

GeForce 400

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

400 MHz

Memory Clock

900 MHz

Memory

512MB

Memory Size

1024MB

DDR2

Memory Type

DDR3

64bit

Memory Bus

128bit

6.400GB/s

Bandwidth

28.80GB/s

Render Config

-

1

SM Count

1

8

Shading Units

48

4

TMUs

4

ROPs

4

-

L1 Cache

64 KB (per SM)

32 KB

L2 Cache

256 KB

-

Theoretical Performance

2.080 GPixel/s

Pixel Rate

1.400 GPixel/s

2.080 GTexel/s

Texture Rate

2.800 GTexel/s

-

19.68 GFLOPS

FP32 (float)

134.4 GFLOPS

-

FP64 (double)

11.20 GFLOPS

Board Design

25W

TDP

50W

200 W

Suggested PSU

250 W

1x DVI 1x VGA 1x S-Video

Outputs

1x DVI 1x HDMI 1.3a 1x VGA

None

Power Connectors

None

Graphics Processor

GT218

GPU Name

GF108

8400GS-225-B1

GPU Variant

GF108-200-A1

Tesla 2.0

Architecture

Fermi

TSMC

Foundry

TSMC

40 nm

Process Size

40 nm

0.26 billion

Transistors

0.585 billion

57 mm²

Die Size

116 mm²

Graphics Features

11.1 (10_1)

DirectX

12 (11_0)

3.3

OpenGL

4.6

1.1

OpenCL

1.1

N/A

Vulkan

N/A

1.2

CUDA

2.1

4.1

Shader Model

5.1

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