NVIDIA GeForce 8400 GS Rev. 3 vs AMD Radeon HD 6770 Green Edition

VS

NVIDIA GeForce 8400 GS Rev. 3

AMD Radeon HD 6770 Green Edition

We compared two Desktop platform GPUs: 512MB VRAM GeForce 8400 GS Rev. 3 and 2GB VRAM Radeon HD 6770 Green Edition 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 86W)

AMD Radeon HD 6770 Green Edition 's Advantages

Released 2 years and 9 months late

More VRAM (2GB vs 512GB)

Larger VRAM bandwidth (21.34GB/s vs 6.400GB/s)

712 additional rendering cores

Score

Benchmark

FP32 (float)

GeForce 8400 GS Rev. 3

0.02 TFLOPS

Radeon HD 6770 Green Edition +4940%

1.008 TFLOPS

GeForce 8400 GS Rev. 3

VS

Radeon HD 6770 Green Edition

Graphics Card

Jul 2010

Release Date

Apr 2013

GeForce 8

Generation

Northern Islands

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

400 MHz

Memory Clock

667 MHz

Memory

512MB

Memory Size

2GB

DDR2

Memory Type

GDDR3

64bit

Memory Bus

128bit

6.400GB/s

Bandwidth

21.34GB/s

Render Config

-

Compute Units

9

1

SM Count

-

8

Shading Units

720

4

TMUs

36

4

ROPs

16

-

L1 Cache

8 KB (per CU)

32 KB

L2 Cache

256 KB

-

Theoretical Performance

2.080 GPixel/s

Pixel Rate

11.20 GPixel/s

2.080 GTexel/s

Texture Rate

25.20 GTexel/s

-

19.68 GFLOPS

FP32 (float)

1008 GFLOPS

-

Board Design

25W

TDP

86W

200 W

Suggested PSU

250 W

1x DVI 1x VGA 1x S-Video

Outputs

2x DVI 1x HDMI 1.3a 2x mini-DisplayPort 1.1

None

Power Connectors

-

Graphics Processor

GT218

GPU Name

Juniper

8400GS-225-B1

GPU Variant

Juniper LE (215-0754009)

Tesla 2.0

Architecture

TeraScale 2

TSMC

Foundry

TSMC

40 nm

Process Size

40 nm

0.26 billion

Transistors

1.04 billion

57 mm²

Die Size

166 mm²

Graphics Features

11.1 (10_1)

DirectX

11.2 (11_0)

3.3

OpenGL

4.4

1.1

OpenCL

1.2

N/A

Vulkan

N/A

1.2

CUDA

-

4.1

Shader Model

5.0

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