ATI Radeon HD 2600 XT Mac Edition vs ATI Radeon HD 3870

VS

ATI Radeon HD 2600 XT Mac Edition

ATI Radeon HD 3870

We compared two Desktop platform GPUs: 256MB VRAM Radeon HD 2600 XT Mac Edition and 512MB VRAM Radeon HD 3870 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

Lower TDP (45W vs 106W)

ATI Radeon HD 3870 's Advantages

More VRAM (512GB vs 256GB)

Larger VRAM bandwidth (72.06GB/s vs 25.60GB/s)

200 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 2600 XT Mac Edition

0.168 TFLOPS

Radeon HD 3870 +195%

0.497 TFLOPS

Radeon HD 2600 XT Mac Edition

VS

Radeon HD 3870

Graphics Card

Feb 2008

Release Date

Nov 2007

Radeon R600

Generation

Radeon R600

Desktop

Type

Desktop

PCIe 1.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

800 MHz

Memory Clock

1126 MHz

Memory

256MB

Memory Size

512MB

GDDR3

Memory Type

GDDR4

128bit

Memory Bus

256bit

25.60GB/s

Bandwidth

72.06GB/s

Render Config

3

Compute Units

4

-

120

Shading Units

320

8

TMUs

16

4

ROPs

16

-

64 KB

L2 Cache

256 KB

-

Theoretical Performance

2.800 GPixel/s

Pixel Rate

12.43 GPixel/s

5.600 GTexel/s

Texture Rate

12.43 GTexel/s

-

168.0 GFLOPS

FP32 (float)

497.3 GFLOPS

-

FP64 (double)

99.46 GFLOPS

Board Design

45W

TDP

106W

200 W

Suggested PSU

300 W

2x DVI

Outputs

2x DVI 1x S-Video

None

Power Connectors

1x 6-pin

Graphics Processor

RV630

GPU Name

RV670

-

GPU Variant

RV670 XT (215-0708005)

TeraScale

Architecture

TeraScale

TSMC

Foundry

TSMC

65 nm

Process Size

55 nm

0.39 billion

Transistors

0.666 billion

153 mm²

Die Size

192 mm²

Graphics Features

10.0 (10_0)

DirectX

10.1 (10_1)

3.3

OpenGL

3.3 (full) 4.0 (partial)

N/A

OpenCL

N/A

Vulkan

N/A

-

4.0

Shader Model

4.1

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