ATI Radeon HD 2600 XT Mac Edition vs NVIDIA GeForce 8400 GS Rev. 3

VS

ATI Radeon HD 2600 XT Mac Edition

NVIDIA GeForce 8400 GS Rev. 3

We compared two Desktop platform GPUs: 256MB VRAM Radeon HD 2600 XT Mac Edition and 512MB VRAM GeForce 8400 GS Rev. 3 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

ATI Radeon HD 2600 XT Mac Edition 's Advantages

Larger VRAM bandwidth (25.60GB/s vs 6.400GB/s)

112 additional rendering cores

NVIDIA GeForce 8400 GS Rev. 3 's Advantages

Released 2 years and 5 months late

More VRAM (512GB vs 256GB)

Lower TDP (25W vs 45W)

Score

Benchmark

FP32 (float)

Radeon HD 2600 XT Mac Edition +740%

0.168 TFLOPS

GeForce 8400 GS Rev. 3

0.02 TFLOPS

Radeon HD 2600 XT Mac Edition

VS

GeForce 8400 GS Rev. 3

Graphics Card

Feb 2008

Release Date

Jul 2010

Radeon R600

Generation

GeForce 8

Desktop

Type

Desktop

PCIe 1.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

800 MHz

Memory Clock

400 MHz

Memory

256MB

Memory Size

512MB

GDDR3

Memory Type

DDR2

128bit

Memory Bus

64bit

25.60GB/s

Bandwidth

6.400GB/s

Render Config

3

Compute Units

-

SM Count

1

120

Shading Units

8

TMUs

4

ROPs

4

-

64 KB

L2 Cache

32 KB

-

Theoretical Performance

2.800 GPixel/s

Pixel Rate

2.080 GPixel/s

5.600 GTexel/s

Texture Rate

2.080 GTexel/s

-

168.0 GFLOPS

FP32 (float)

19.68 GFLOPS

-

Board Design

45W

TDP

25W

200 W

Suggested PSU

200 W

2x DVI

Outputs

1x DVI 1x VGA 1x S-Video

None

Power Connectors

None

Graphics Processor

RV630

GPU Name

GT218

-

GPU Variant

8400GS-225-B1

TeraScale

Architecture

Tesla 2.0

TSMC

Foundry

TSMC

65 nm

Process Size

40 nm

0.39 billion

Transistors

0.26 billion

153 mm²

Die Size

57 mm²

Graphics Features

10.0 (10_0)

DirectX

11.1 (10_1)

3.3

OpenGL

3.3

N/A

OpenCL

1.1

N/A

Vulkan

N/A

-

CUDA

1.2

4.0

Shader Model

4.1

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