NVIDIA GeForce 8400 vs ATI Radeon X800 GT AGP

VS

NVIDIA GeForce 8400

ATI Radeon X800 GT AGP

We compared two Desktop platform GPUs: 256MB VRAM GeForce 8400 and 256MB VRAM Radeon X800 GT AGP to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce 8400 's Advantages

8 additional rendering cores

Lower TDP (25W vs 40W)

ATI Radeon X800 GT AGP 's Advantages

Larger VRAM bandwidth (31.55GB/s vs 8.000GB/s)

Score

GeForce 8400

VS

Radeon X800 GT AGP

Graphics Card

Dec 2007

Release Date

Nov 2007

GeForce 8

Generation

Radeon R400 AGP

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

AGP 8x

Clock Speeds

-

500 MHz

Memory Clock

493 MHz

Memory

256MB

Memory Size

256MB

DDR2

Memory Type

GDDR3

64bit

Memory Bus

256bit

8.000GB/s

Bandwidth

31.55GB/s

Render Config

-

1

SM Count

-

8

Shading Units

-

4

TMUs

8

4

ROPs

8

-

16 KB

L2 Cache

-

Theoretical Performance

2.160 GPixel/s

Pixel Rate

3.784 GPixel/s

2.160 GTexel/s

Texture Rate

3.784 GTexel/s

-

20.80 GFLOPS

FP32 (float)

-

Board Design

25W

TDP

40W

200 W

Suggested PSU

200 W

1x DVI 1x VGA 1x S-Video

Outputs

1x DVI 1x VGA 1x S-Video

None

Power Connectors

1x Molex

Graphics Processor

G98

GPU Name

R420

-

GPU Variant

R420 GT (215RAACGA12F)

Tesla

Architecture

R400

TSMC

Foundry

TSMC

65 nm

Process Size

130 nm

0.21 billion

Transistors

0.16 billion

86 mm²

Die Size

281 mm²

Graphics Features

11.1 (10_0)

DirectX

9.0b (9_2)

3.3

OpenGL

2.1

1.1

OpenCL

N/A

Vulkan

N/A

1.1

CUDA

-

4.0

Shader Model

-

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