ATI Radeon HD 5470 vs AMD Radeon HD 6870 X2

VS

ATI Radeon HD 5470

AMD Radeon HD 6870 X2

We compared two Desktop platform GPUs: 512MB VRAM Radeon HD 5470 and 1024MB VRAM Radeon HD 6870 X2 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

ATI Radeon HD 5470 's Advantages

Released 7 months late

Lower TDP (19W vs 300W)

AMD Radeon HD 6870 X2 's Advantages

More VRAM (1024GB vs 512GB)

Larger VRAM bandwidth (134.4GB/s vs 6.400GB/s)

1040 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 5470

0.104 TFLOPS

Radeon HD 6870 X2 +1838%

2.016 TFLOPS

Radeon HD 5470

VS

Radeon HD 6870 X2

Graphics Card

Feb 2012

Release Date

Jul 2011

Evergreen

Generation

Northern Islands

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

400 MHz

Memory Clock

1050 MHz

Memory

512MB

Memory Size

1024MB

GDDR3

Memory Type

GDDR5

64bit

Memory Bus

256bit

6.400GB/s

Bandwidth

134.4GB/s

Render Config

2

Compute Units

14

-

80

Shading Units

1120

8

TMUs

56

4

ROPs

32

-

8 KB (per CU)

L1 Cache

8 KB (per CU)

128 KB

L2 Cache

512 KB

-

Theoretical Performance

2.600 GPixel/s

Pixel Rate

28.80 GPixel/s

5.200 GTexel/s

Texture Rate

50.40 GTexel/s

-

104.0 GFLOPS

FP32 (float)

2.016 TFLOPS

-

Board Design

19W

TDP

300W

200 W

Suggested PSU

700 W

1x DVI 1x HDMI 1.3a 1x VGA

Outputs

2x DVI 1x HDMI 1.3a 2x mini-DisplayPort 1.1

None

Power Connectors

-

Graphics Processor

Cedar

GPU Name

Barts

Cedar PRO

GPU Variant

Barts XT (215-0798000)

TeraScale 2

Architecture

TeraScale 2

TSMC

Foundry

TSMC

40 nm

Process Size

40 nm

0.292 billion

Transistors

1.7 billion

59 mm²

Die Size

255 mm²

Graphics Features

11.2 (11_0)

DirectX

11.2 (11_0)

4.4

OpenGL

4.4

1.2

OpenCL

1.2

N/A

Vulkan

N/A

-

5.0

Shader Model

5.0

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