AMD Radeon HD 6870 vs ATI Radeon HD 5470

VS

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

Main Differences

AMD Radeon HD 6870 's Advantages

More VRAM (1024GB vs 512GB)

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

1040 additional rendering cores

ATI Radeon HD 5470 's Advantages

Released 1 years and 4 months late

Lower TDP (19W vs 151W)

Score

Benchmark

FP32 (float)

Radeon HD 6870 +1838%

2.016 TFLOPS

Radeon HD 5470

0.104 TFLOPS

Radeon HD 6870

VS

Radeon HD 5470

Graphics Card

Oct 2010

Release Date

Feb 2012

Northern Islands

Generation

Evergreen

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

Base Clock

-

Boost Clock

-

1050 MHz

Memory Clock

400 MHz

Memory

1024MB

Memory Size

512MB

GDDR5

Memory Type

GDDR3

256bit

Memory Bus

64bit

134.4GB/s

Bandwidth

6.400GB/s

Render Config

-

SM Count

-

14

Compute Units

2

1120

Shading Units

80

56

TMUs

8

32

ROPs

4

-

Tensor Cores

-

RT Cores

-

8 KB (per CU)

L1 Cache

8 KB (per CU)

512 KB

L2 Cache

128 KB

Theoretical Performance

28.80 GPixel/s

Pixel Rate

2.600 GPixel/s

50.40 GTexel/s

Texture Rate

5.200 GTexel/s

-

FP16 (half)

-

2.016 TFLOPS

FP32 (float)

104.0 GFLOPS

-

FP64 (double)

-

Graphics Processor

Barts

GPU Name

Cedar

Barts XT (215-0798000)

GPU Variant

Cedar PRO

TeraScale 2

Architecture

TeraScale 2

TSMC

Foundry

TSMC

40 nm

Process Size

40 nm

1.7 billion

Transistors

0.292 billion

255 mm²

Die Size

59 mm²

Board Design

151W

TDP

19W

450 W

Suggested PSU

200 W

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

Outputs

1x DVI 1x HDMI 1.3a 1x VGA

2x 6-pin

Power Connectors

None

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

-

CUDA

-

5.0

Shader Model

5.0

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