ATI Radeon HD 4670 X2 vs NVIDIA GeForce 8400 GS Rev. 2

VS

ATI Radeon HD 4670 X2

NVIDIA GeForce 8400 GS Rev. 2

We compared two Desktop platform GPUs: 512MB VRAM Radeon HD 4670 X2 and 512MB VRAM GeForce 8400 GS Rev. 2 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

ATI Radeon HD 4670 X2 's Advantages

Released 9 months late

Larger VRAM bandwidth (22.40GB/s vs 6.400GB/s)

312 additional rendering cores

NVIDIA GeForce 8400 GS Rev. 2 's Advantages

Lower TDP (25W vs 118W)

Score

Benchmark

FP32 (float)

Radeon HD 4670 X2 +2081%

0.48 TFLOPS

GeForce 8400 GS Rev. 2

0.022 TFLOPS

Radeon HD 4670 X2

VS

GeForce 8400 GS Rev. 2

Graphics Card

Sep 2008

Release Date

Dec 2007

Radeon R700

Generation

GeForce 8

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

700 MHz

Memory Clock

400 MHz

Memory

512MB

Memory Size

512MB

GDDR3

Memory Type

DDR2

128bit

Memory Bus

64bit

22.40GB/s

Bandwidth

6.400GB/s

Render Config

4

Compute Units

-

SM Count

1

320

Shading Units

8

32

TMUs

4

8

ROPs

4

-

16 KB (per CU)

L1 Cache

-

128 KB

L2 Cache

16 KB

-

Theoretical Performance

6.000 GPixel/s

Pixel Rate

2.268 GPixel/s

24.00 GTexel/s

Texture Rate

2.268 GTexel/s

-

480.0 GFLOPS

FP32 (float)

22.40 GFLOPS

-

Board Design

118W

TDP

25W

300 W

Suggested PSU

200 W

4x DVI

Outputs

1x DVI 1x VGA 1x S-Video

1x 6-pin

Power Connectors

None

Graphics Processor

RV730

GPU Name

G98

RV730 XT (215-0719047)

GPU Variant

-

TeraScale

Architecture

Tesla

TSMC

Foundry

TSMC

55 nm

Process Size

65 nm

0.514 billion

Transistors

0.21 billion

146 mm²

Die Size

86 mm²

Graphics Features

10.1 (10_1)

DirectX

11.1 (10_0)

3.3

OpenGL

3.3

1.1

OpenCL

1.1

N/A

Vulkan

N/A

-

CUDA

1.1

4.1

Shader Model

4.0

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