AMD Radeon HD 7950 Mac Edition vs AMD Radeon HD 7970 GHz Edition

VS

AMD Radeon HD 7950 Mac Edition

AMD Radeon HD 7970 GHz Edition

We compared two Desktop platform GPUs: 3GB VRAM Radeon HD 7950 Mac Edition and 3GB VRAM Radeon HD 7970 GHz Edition to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 7950 Mac Edition 's Advantages

Released 9 months late

Lower TDP (200W vs 300W)

AMD Radeon HD 7970 GHz Edition 's Advantages

Boost Clock1050MHz

Larger VRAM bandwidth (288.0GB/s vs 240.0GB/s)

256 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 7950 Mac Edition

2.867 TFLOPS

Radeon HD 7970 GHz Edition +50%

4.301 TFLOPS

Radeon HD 7950 Mac Edition

VS

Radeon HD 7970 GHz Edition

Graphics Card

Mar 2013

Release Date

Jun 2012

Southern Islands

Generation

Southern Islands

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

Base Clock

1000 MHz

-

Boost Clock

1050 MHz

1250 MHz

Memory Clock

1500 MHz

Memory

3GB

Memory Size

3GB

GDDR5

Memory Type

GDDR5

384bit

Memory Bus

384bit

240.0GB/s

Bandwidth

288.0GB/s

Render Config

28

Compute Units

32

-

1792

Shading Units

2048

112

TMUs

128

32

ROPs

32

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

768 KB

L2 Cache

768 KB

-

Theoretical Performance

25.60 GPixel/s

Pixel Rate

33.60 GPixel/s

89.60 GTexel/s

Texture Rate

134.4 GTexel/s

-

2.867 TFLOPS

FP32 (float)

4.301 TFLOPS

716.8 GFLOPS

FP64 (double)

1075 GFLOPS

Board Design

200W

TDP

300W

550 W

Suggested PSU

700 W

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

Outputs

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

2x 6-pin

Power Connectors

1x 6-pin + 1x 8-pin

Graphics Processor

Tahiti

GPU Name

Tahiti

Tahiti PRO (215-0821056)

GPU Variant

Tahiti XT2 (215-0821065)

GCN 1.0

Architecture

GCN 1.0

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

4.313 billion

Transistors

4.313 billion

352 mm²

Die Size

352 mm²

Graphics Features

12 (11_1)

DirectX

12 (11_1)

4.6

OpenGL

4.6

1.2

OpenCL

1.2

Vulkan

1.2

-

5.1

Shader Model

5.1

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