AMD Radeon HD 7870 GHz Edition vs ATI Radeon HD 5870 Mac Edition

VS

AMD Radeon HD 7870 GHz Edition

ATI Radeon HD 5870 Mac Edition

We compared two Desktop platform GPUs: 2GB VRAM Radeon HD 7870 GHz Edition and 1024MB VRAM Radeon HD 5870 Mac Edition to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 7870 GHz Edition 's Advantages

Released 1 years and 9 months late

More VRAM (2GB vs 1024GB)

Larger VRAM bandwidth (153.6GB/s vs 153.0GB/s)

Lower TDP (175W vs 228W)

ATI Radeon HD 5870 Mac Edition 's Advantages

320 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 7870 GHz Edition

2.56 TFLOPS

Radeon HD 5870 Mac Edition +6%

2.72 TFLOPS

Radeon HD 7870 GHz Edition

VS

Radeon HD 5870 Mac Edition

Graphics Card

Mar 2012

Release Date

Jun 2010

Southern Islands

Generation

Evergreen

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

1200 MHz

Memory Clock

1195 MHz

Memory

2GB

Memory Size

1024MB

GDDR5

Memory Type

GDDR5

256bit

Memory Bus

256bit

153.6GB/s

Bandwidth

153.0GB/s

Render Config

20

Compute Units

20

-

1280

Shading Units

1600

80

TMUs

80

32

ROPs

32

-

16 KB (per CU)

L1 Cache

8 KB (per CU)

512 KB

L2 Cache

512 KB

-

Theoretical Performance

32.00 GPixel/s

Pixel Rate

27.20 GPixel/s

80.00 GTexel/s

Texture Rate

68.00 GTexel/s

-

2.560 TFLOPS

FP32 (float)

2.720 TFLOPS

160.0 GFLOPS

FP64 (double)

544.0 GFLOPS

Board Design

175W

TDP

228W

450 W

Suggested PSU

550 W

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

Outputs

1x DVI 2x mini-DisplayPort 1.1

2x 6-pin

Power Connectors

2x 6-pin

Graphics Processor

Pitcairn

GPU Name

Cypress

Pitcairn XT (215-0828047)

GPU Variant

Cypress XT (215-0735033)

GCN 1.0

Architecture

TeraScale 2

TSMC

Foundry

TSMC

28 nm

Process Size

40 nm

2.8 billion

Transistors

2.154 billion

212 mm²

Die Size

334 mm²

Graphics Features

12 (11_1)

DirectX

11.2 (11_0)

4.6

OpenGL

4.4

1.2

OpenCL

1.2

Vulkan

N/A

-

5.1

Shader Model

5.0

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