ATI Radeon HD 3870 Mac Edition vs ATI Radeon HD 5550

VS

ATI Radeon HD 3870 Mac Edition

ATI Radeon HD 5550

We compared two Desktop platform GPUs: 512MB VRAM Radeon HD 3870 Mac Edition and 512MB VRAM Radeon HD 5550 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

ATI Radeon HD 3870 Mac Edition 's Advantages

Larger VRAM bandwidth (72.06GB/s vs 51.20GB/s)

ATI Radeon HD 5550 's Advantages

Released 1 years and 8 months late

Lower TDP (39W vs 106W)

Score

Benchmark

FP32 (float)

Radeon HD 3870 Mac Edition +41%

0.497 TFLOPS

Radeon HD 5550

0.352 TFLOPS

Radeon HD 3870 Mac Edition

VS

Radeon HD 5550

Graphics Card

Jun 2008

Release Date

Feb 2010

Radeon R600

Generation

Evergreen

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

1126 MHz

Memory Clock

800 MHz

Memory

512MB

Memory Size

512MB

GDDR4

Memory Type

GDDR5

256bit

Memory Bus

128bit

72.06GB/s

Bandwidth

51.20GB/s

Render Config

4

Compute Units

4

-

320

Shading Units

320

16

TMUs

16

ROPs

8

-

L1 Cache

8 KB (per CU)

256 KB

L2 Cache

256 KB

-

Theoretical Performance

12.43 GPixel/s

Pixel Rate

4.400 GPixel/s

12.43 GTexel/s

Texture Rate

8.800 GTexel/s

-

497.3 GFLOPS

FP32 (float)

352.0 GFLOPS

99.46 GFLOPS

FP64 (double)

-

Board Design

106W

TDP

39W

300 W

Suggested PSU

200 W

2x DVI 1x S-Video

Outputs

1x DVI 1x HDMI 1.3a 1x VGA

1x 6-pin

Power Connectors

None

Graphics Processor

RV670

GPU Name

Redwood

RV670 XT (215-0708005)

GPU Variant

Redwood PRO2

TeraScale

Architecture

TeraScale 2

TSMC

Foundry

TSMC

55 nm

Process Size

40 nm

0.666 billion

Transistors

0.627 billion

192 mm²

Die Size

104 mm²

Graphics Features

10.1 (10_1)

DirectX

11.2 (11_0)

3.3 (full) 4.0 (partial)

OpenGL

4.4

N/A

OpenCL

1.2

N/A

Vulkan

N/A

-

4.1

Shader Model

5.0

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