ATI Radeon HD 2600 XT Mac Edition vs AMD Radeon HD 6950

VS

ATI Radeon HD 2600 XT Mac Edition

AMD Radeon HD 6950

We compared two Desktop platform GPUs: 256MB VRAM Radeon HD 2600 XT Mac Edition and 2GB VRAM Radeon HD 6950 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 200W)

AMD Radeon HD 6950 's Advantages

Released 2 years and 10 months late

More VRAM (2GB vs 256GB)

Larger VRAM bandwidth (160.0GB/s vs 25.60GB/s)

1288 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 2600 XT Mac Edition

0.168 TFLOPS

Radeon HD 6950 +1241%

2.253 TFLOPS

Radeon HD 2600 XT Mac Edition

VS

Radeon HD 6950

Graphics Card

Feb 2008

Release Date

Dec 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

1250 MHz

Memory

256MB

Memory Size

2GB

GDDR3

Memory Type

GDDR5

128bit

Memory Bus

256bit

25.60GB/s

Bandwidth

160.0GB/s

Render Config

3

Compute Units

22

-

120

Shading Units

1408

8

TMUs

88

4

ROPs

32

-

L1 Cache

8 KB (per CU)

64 KB

L2 Cache

512 KB

-

Theoretical Performance

2.800 GPixel/s

Pixel Rate

25.60 GPixel/s

5.600 GTexel/s

Texture Rate

70.40 GTexel/s

-

168.0 GFLOPS

FP32 (float)

2.253 TFLOPS

-

FP64 (double)

563.2 GFLOPS

Board Design

45W

TDP

200W

200 W

Suggested PSU

550 W

2x DVI

Outputs

2x DVI 1x HDMI 1.4a 2x mini-DisplayPort 1.2

None

Power Connectors

2x 6-pin

Graphics Processor

RV630

GPU Name

Cayman

-

GPU Variant

Cayman PRO (215-0807019)

TeraScale

Architecture

TeraScale 3

TSMC

Foundry

TSMC

65 nm

Process Size

40 nm

0.39 billion

Transistors

2.64 billion

153 mm²

Die Size

389 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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