ATI Radeon HD 5870 Mac Edition vs AMD Radeon Sky 900

VS

ATI Radeon HD 5870 Mac Edition

AMD Radeon Sky 900

We compared two Desktop platform GPUs: 1024MB VRAM Radeon HD 5870 Mac Edition and 3GB VRAM Radeon Sky 900 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

ATI Radeon HD 5870 Mac Edition 's Advantages

Lower TDP (228W vs 300W)

AMD Radeon Sky 900 's Advantages

Released 2 years and 9 months late

Boost Clock950MHz

More VRAM (3GB vs 1024GB)

Larger VRAM bandwidth (240.0GB/s vs 153.0GB/s)

192 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 5870 Mac Edition

2.72 TFLOPS

Radeon Sky 900 +25%

3.405 TFLOPS

Radeon HD 5870 Mac Edition

VS

Radeon Sky 900

Graphics Card

Jun 2010

Release Date

Mar 2013

Evergreen

Generation

Radeon Sky

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

Base Clock

825 MHz

-

Boost Clock

950 MHz

1195 MHz

Memory Clock

1250 MHz

Memory

1024MB

Memory Size

3GB

GDDR5

Memory Type

GDDR5

256bit

Memory Bus

384bit

153.0GB/s

Bandwidth

240.0GB/s

Render Config

20

Compute Units

28

-

1600

Shading Units

1792

80

TMUs

112

32

ROPs

32

-

8 KB (per CU)

L1 Cache

16 KB (per CU)

512 KB

L2 Cache

768 KB

-

Theoretical Performance

27.20 GPixel/s

Pixel Rate

30.40 GPixel/s

68.00 GTexel/s

Texture Rate

106.4 GTexel/s

-

2.720 TFLOPS

FP32 (float)

3.405 TFLOPS

544.0 GFLOPS

FP64 (double)

851.2 GFLOPS

Board Design

228W

TDP

300W

550 W

Suggested PSU

700 W

1x DVI 2x mini-DisplayPort 1.1

Outputs

1x DVI 1x mini-DisplayPort 1.2

2x 6-pin

Power Connectors

2x 8-pin

Graphics Processor

Cypress

GPU Name

Tahiti

Cypress XT (215-0735033)

GPU Variant

Orthrus

TeraScale 2

Architecture

GCN 1.0

TSMC

Foundry

TSMC

40 nm

Process Size

28 nm

2.154 billion

Transistors

4.313 billion

334 mm²

Die Size

352 mm²

Graphics Features

11.2 (11_0)

DirectX

12 (11_1)

4.4

OpenGL

4.6

1.2

OpenCL

1.2

N/A

Vulkan

1.2

-

5.0

Shader Model

5.1

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