AMD Radeon HD 7950 Mac Edition vs AMD Radeon Sky 500

VS

AMD Radeon HD 7950 Mac Edition

AMD Radeon Sky 500

We compared two Desktop platform GPUs: 3GB VRAM Radeon HD 7950 Mac Edition and 4GB VRAM Radeon Sky 500 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

Larger VRAM bandwidth (240.0GB/s vs 153.6GB/s)

512 additional rendering cores

AMD Radeon Sky 500 's Advantages

More VRAM (4GB vs 3GB)

Lower TDP (150W vs 200W)

Score

Benchmark

FP32 (float)

Radeon HD 7950 Mac Edition +17%

2.867 TFLOPS

Radeon Sky 500

2.432 TFLOPS

Radeon HD 7950 Mac Edition

VS

Radeon Sky 500

Graphics Card

Mar 2013

Release Date

Mar 2013

Southern Islands

Generation

Radeon Sky

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

1250 MHz

Memory Clock

1200 MHz

Memory

3GB

Memory Size

4GB

GDDR5

Memory Type

GDDR5

384bit

Memory Bus

256bit

240.0GB/s

Bandwidth

153.6GB/s

Render Config

28

Compute Units

20

-

1792

Shading Units

1280

112

TMUs

80

32

ROPs

32

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

768 KB

L2 Cache

512 KB

-

Theoretical Performance

25.60 GPixel/s

Pixel Rate

30.40 GPixel/s

89.60 GTexel/s

Texture Rate

76.00 GTexel/s

-

2.867 TFLOPS

FP32 (float)

2.432 TFLOPS

716.8 GFLOPS

FP64 (double)

152.0 GFLOPS

Board Design

200W

TDP

150W

550 W

Suggested PSU

450 W

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

Outputs

1x DisplayPort 1.2

2x 6-pin

Power Connectors

1x 6-pin

Graphics Processor

Tahiti

GPU Name

Pitcairn

Tahiti PRO (215-0821056)

GPU Variant

Pitcairn XT GL (215-0828073)

GCN 1.0

Architecture

GCN 1.0

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

4.313 billion

Transistors

2.8 billion

352 mm²

Die Size

212 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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