NVIDIA GeForce 7800 GTX 512 vs NVIDIA GeForce 8400

VS

NVIDIA GeForce 7800 GTX 512

NVIDIA GeForce 8400

We compared two Desktop platform GPUs: 512MB VRAM GeForce 7800 GTX 512 and 256MB VRAM GeForce 8400 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce 7800 GTX 512 's Advantages

More VRAM (512GB vs 256GB)

Larger VRAM bandwidth (51.20GB/s vs 8.000GB/s)

NVIDIA GeForce 8400 's Advantages

Released 2 years and 1 months late

8 additional rendering cores

Lower TDP (25W vs 108W)

Score

GeForce 7800 GTX 512

VS

GeForce 8400

Graphics Card

Nov 2005

Release Date

Dec 2007

GeForce 7 PCIe

Generation

GeForce 8

Desktop

Type

Desktop

PCIe 1.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

800 MHz

Memory Clock

500 MHz

Memory

512MB

Memory Size

256MB

GDDR3

Memory Type

DDR2

256bit

Memory Bus

64bit

51.20GB/s

Bandwidth

8.000GB/s

Render Config

-

SM Count

1

-

Shading Units

8

24

TMUs

4

16

ROPs

4

-

L2 Cache

16 KB

-

Theoretical Performance

8.000 GPixel/s

Pixel Rate

2.160 GPixel/s

12.00 GTexel/s

Texture Rate

2.160 GTexel/s

-

FP32 (float)

20.80 GFLOPS

-

Board Design

108W

TDP

25W

300 W

Suggested PSU

200 W

2x DVI 1x S-Video

Outputs

1x DVI 1x VGA 1x S-Video

-

Power Connectors

None

Graphics Processor

G70

GPU Name

G98

GF-7800-GTX-512-A2

GPU Variant

-

Curie

Architecture

Tesla

TSMC

Foundry

TSMC

110 nm

Process Size

65 nm

0.302 billion

Transistors

0.21 billion

333 mm²

Die Size

86 mm²

Graphics Features

9.0c (9_3)

DirectX

11.1 (10_0)

2.1

OpenGL

3.3

N/A

OpenCL

1.1

N/A

Vulkan

N/A

-

CUDA

1.1

3.0

Shader Model

4.0

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