ATI Radeon HD 2600 XT Mac Edition vs AMD Radeon HD 7950

VS

ATI Radeon HD 2600 XT Mac Edition

AMD Radeon HD 7950

We compared two Desktop platform GPUs: 256MB VRAM Radeon HD 2600 XT Mac Edition and 3GB VRAM Radeon HD 7950 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 7950 's Advantages

Released 3 years and 11 months late

More VRAM (3GB vs 256GB)

Larger VRAM bandwidth (240.0GB/s vs 25.60GB/s)

1672 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 2600 XT Mac Edition

0.168 TFLOPS

Radeon HD 7950 +1606%

2.867 TFLOPS

Radeon HD 2600 XT Mac Edition

VS

Radeon HD 7950

Graphics Card

Feb 2008

Release Date

Jan 2012

Radeon R600

Generation

Southern Islands

Desktop

Type

Desktop

PCIe 1.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

800 MHz

Memory Clock

1250 MHz

Memory

256MB

Memory Size

3GB

GDDR3

Memory Type

GDDR5

128bit

Memory Bus

384bit

25.60GB/s

Bandwidth

240.0GB/s

Render Config

3

Compute Units

28

-

120

Shading Units

1792

8

TMUs

112

4

ROPs

32

-

L1 Cache

16 KB (per CU)

64 KB

L2 Cache

768 KB

-

Theoretical Performance

2.800 GPixel/s

Pixel Rate

25.60 GPixel/s

5.600 GTexel/s

Texture Rate

89.60 GTexel/s

-

168.0 GFLOPS

FP32 (float)

2.867 TFLOPS

-

FP64 (double)

716.8 GFLOPS

Board Design

45W

TDP

200W

200 W

Suggested PSU

550 W

2x DVI

Outputs

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

None

Power Connectors

2x 6-pin

Graphics Processor

RV630

GPU Name

Tahiti

-

GPU Variant

Tahiti PRO (215-0821056)

TeraScale

Architecture

GCN 1.0

TSMC

Foundry

TSMC

65 nm

Process Size

28 nm

0.39 billion

Transistors

4.313 billion

153 mm²

Die Size

352 mm²

Graphics Features

10.0 (10_0)

DirectX

12 (11_1)

3.3

OpenGL

4.6

N/A

OpenCL

1.2

N/A

Vulkan

1.2

-

4.0

Shader Model

5.1

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