ATI Radeon HD 2600 XT Mac Edition vs NVIDIA GeForce 405 OEM

VS

ATI Radeon HD 2600 XT Mac Edition

NVIDIA GeForce 405 OEM

We compared two Desktop platform GPUs: 256MB VRAM Radeon HD 2600 XT Mac Edition and 512MB VRAM GeForce 405 OEM 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 12.64GB/s)

104 additional rendering cores

NVIDIA GeForce 405 OEM 's Advantages

Released 2 years and 7 months late

More VRAM (512GB vs 256GB)

Lower TDP (25W vs 45W)

Score

Benchmark

FP32 (float)

Radeon HD 2600 XT Mac Edition +273%

0.168 TFLOPS

GeForce 405 OEM

0.045 TFLOPS

Radeon HD 2600 XT Mac Edition

VS

GeForce 405 OEM

Graphics Card

Feb 2008

Release Date

Sep 2010

Radeon R600

Generation

GeForce 400

Desktop

Type

Desktop

PCIe 1.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

800 MHz

Memory Clock

790 MHz

Memory

256MB

Memory Size

512MB

GDDR3

Memory Type

DDR3

128bit

Memory Bus

64bit

25.60GB/s

Bandwidth

12.64GB/s

Render Config

3

Compute Units

-

SM Count

2

120

Shading Units

16

8

TMUs

8

4

ROPs

4

-

64 KB

L2 Cache

32 KB

-

Theoretical Performance

2.800 GPixel/s

Pixel Rate

2.356 GPixel/s

5.600 GTexel/s

Texture Rate

4.712 GTexel/s

-

168.0 GFLOPS

FP32 (float)

44.86 GFLOPS

-

Board Design

45W

TDP

25W

200 W

Suggested PSU

200 W

2x DVI

Outputs

1x DVI 1x HDMI 1x VGA

None

Power Connectors

None

Graphics Processor

RV630

GPU Name

GT218

-

GPU Variant

GT218-300-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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