NVIDIA GeForce 8400 vs ATI Radeon HD 3450 X2

VS

NVIDIA GeForce 8400

ATI Radeon HD 3450 X2

We compared two Desktop platform GPUs: 256MB VRAM GeForce 8400 and 512MB VRAM Radeon HD 3450 X2 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce 8400 's Advantages

Lower TDP (25W vs 50W)

ATI Radeon HD 3450 X2 's Advantages

More VRAM (512GB vs 256GB)

32 additional rendering cores

Score

Benchmark

FP32 (float)

GeForce 8400

0.021 TFLOPS

Radeon HD 3450 X2 +128%

0.048 TFLOPS

GeForce 8400

VS

Radeon HD 3450 X2

Graphics Card

Dec 2007

Release Date

Dec 2007

GeForce 8

Generation

Radeon R600

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

500 MHz

Memory Clock

500 MHz

Memory

256MB

Memory Size

512MB

DDR2

Memory Type

DDR2

64bit

Memory Bus

64bit

8.000GB/s

Bandwidth

8.000GB/s

Render Config

-

Compute Units

2

1

SM Count

-

8

Shading Units

40

4

TMUs

4

ROPs

4

-

16 KB

L2 Cache

64 KB

-

Theoretical Performance

2.160 GPixel/s

Pixel Rate

2.400 GPixel/s

2.160 GTexel/s

Texture Rate

2.400 GTexel/s

-

20.80 GFLOPS

FP32 (float)

48.00 GFLOPS

-

Board Design

25W

TDP

50W

200 W

Suggested PSU

250 W

1x DVI 1x VGA 1x S-Video

Outputs

2x DMS-59

None

Power Connectors

None

Graphics Processor

G98

GPU Name

RV620

-

GPU Variant

RV620 LE

Tesla

Architecture

TeraScale

TSMC

Foundry

TSMC

65 nm

Process Size

55 nm

0.21 billion

Transistors

0.181 billion

86 mm²

Die Size

67 mm²

Graphics Features

11.1 (10_0)

DirectX

10.1 (10_1)

3.3

OpenGL

3.3

1.1

OpenCL

N/A

Vulkan

N/A

1.1

CUDA

-

4.0

Shader Model

4.1

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