ATI Radeon HD 2600 XT Mac Edition vs AMD Radeon HD 6850

VS

ATI Radeon HD 2600 XT Mac Edition

AMD Radeon HD 6850

We compared two Desktop platform GPUs: 256MB VRAM Radeon HD 2600 XT Mac Edition and 1024MB VRAM Radeon HD 6850 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 127W)

AMD Radeon HD 6850 's Advantages

Released 2 years and 8 months late

More VRAM (1024GB vs 256GB)

Larger VRAM bandwidth (128.0GB/s vs 25.60GB/s)

840 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 2600 XT Mac Edition

0.168 TFLOPS

Radeon HD 6850 +785%

1.488 TFLOPS

Radeon HD 2600 XT Mac Edition

VS

Radeon HD 6850

Graphics Card

Feb 2008

Release Date

Oct 2010

Radeon R600

Generation

Northern Islands

Desktop

Type

Desktop

PCIe 1.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

800 MHz

Memory Clock

1000 MHz

Memory

256MB

Memory Size

1024MB

GDDR3

Memory Type

GDDR5

128bit

Memory Bus

256bit

25.60GB/s

Bandwidth

128.0GB/s

Render Config

3

Compute Units

12

-

120

Shading Units

960

8

TMUs

48

4

ROPs

32

-

L1 Cache

8 KB (per CU)

64 KB

L2 Cache

512 KB

-

Theoretical Performance

2.800 GPixel/s

Pixel Rate

24.80 GPixel/s

5.600 GTexel/s

Texture Rate

37.20 GTexel/s

-

168.0 GFLOPS

FP32 (float)

1488 GFLOPS

-

Board Design

45W

TDP

127W

200 W

Suggested PSU

300 W

2x DVI

Outputs

2x DVI 1x HDMI 1.3a 2x mini-DisplayPort 1.1

None

Power Connectors

1x 6-pin

Graphics Processor

RV630

GPU Name

Barts

-

GPU Variant

Barts PRO (215-0798006)

TeraScale

Architecture

TeraScale 2

TSMC

Foundry

TSMC

65 nm

Process Size

40 nm

0.39 billion

Transistors

1.7 billion

153 mm²

Die Size

255 mm²

Graphics Features

10.0 (10_0)

DirectX

11.2 (11_0)

3.3

OpenGL

4.4

N/A

OpenCL

1.2

N/A

Vulkan

N/A

-

4.0

Shader Model

5.0

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