NVIDIA GeForce 9800 GX2 vs NVIDIA GeForce 8400 GS

VS

NVIDIA GeForce 9800 GX2

NVIDIA GeForce 8400 GS

We compared two Desktop platform GPUs: 512MB VRAM GeForce 9800 GX2 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 9800 GX2 's Advantages

Released 11 months late

More VRAM (512GB vs 256GB)

Larger VRAM bandwidth (64.00GB/s vs 6.400GB/s)

112 additional rendering cores

NVIDIA GeForce 8400 GS 's Advantages

Lower TDP (40W vs 197W)

Score

Benchmark

FP32 (float)

GeForce 9800 GX2 +1224%

0.384 TFLOPS

GeForce 8400 GS

0.029 TFLOPS

GeForce 9800 GX2

VS

GeForce 8400 GS

Graphics Card

Mar 2008

Release Date

Apr 2007

GeForce 9

Generation

GeForce 8

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 1.0 x16

Clock Speeds

-

1000 MHz

Memory Clock

400 MHz

Memory

512MB

Memory Size

256MB

GDDR3

Memory Type

DDR2

256bit

Memory Bus

64bit

64.00GB/s

Bandwidth

6.400GB/s

Render Config

-

16

SM Count

2

128

Shading Units

16

64

TMUs

8

16

ROPs

4

-

64 KB

L2 Cache

16 KB

-

Theoretical Performance

9.600 GPixel/s

Pixel Rate

1.836 GPixel/s

38.40 GTexel/s

Texture Rate

3.672 GTexel/s

-

384.0 GFLOPS

FP32 (float)

29.38 GFLOPS

-

Board Design

197W

TDP

40W

450 W

Suggested PSU

200 W

2x DVI 1x HDMI

Outputs

1x DVI 1x VGA 1x S-Video

1x 6-pin + 1x 8-pin

Power Connectors

None

Graphics Processor

G92

GPU Name

G86

G92-450-A2

GPU Variant

G86-213-A2

Tesla

Architecture

Tesla

TSMC

Foundry

TSMC

65 nm

Process Size

80 nm

0.754 billion

Transistors

0.21 billion

324 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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