ATI Radeon HD 3470 vs AMD Radeon HD 6870 1600SP Edition

VS

ATI Radeon HD 3470

AMD Radeon HD 6870 1600SP Edition

We compared two Desktop platform GPUs: 256MB VRAM Radeon HD 3470 and 1024MB VRAM Radeon HD 6870 1600SP Edition to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

ATI Radeon HD 3470 's Advantages

Lower TDP (30W vs 175W)

AMD Radeon HD 6870 1600SP Edition 's Advantages

Released 5 years late

More VRAM (1024GB vs 256GB)

Larger VRAM bandwidth (134.4GB/s vs 15.20GB/s)

1560 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 3470

0.064 TFLOPS

Radeon HD 6870 1600SP Edition +4150%

2.72 TFLOPS

Radeon HD 3470

VS

Radeon HD 6870 1600SP Edition

Graphics Card

Jan 2008

Release Date

Jan 2013

Radeon R600

Generation

Northern Islands

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

950 MHz

Memory Clock

1050 MHz

Memory

256MB

Memory Size

1024MB

GDDR3

Memory Type

GDDR5

64bit

Memory Bus

256bit

15.20GB/s

Bandwidth

134.4GB/s

Render Config

2

Compute Units

20

-

40

Shading Units

1600

4

TMUs

80

4

ROPs

32

-

L1 Cache

8 KB (per CU)

64 KB

L2 Cache

512 KB

-

Theoretical Performance

3.200 GPixel/s

Pixel Rate

27.20 GPixel/s

3.200 GTexel/s

Texture Rate

68.00 GTexel/s

-

64.00 GFLOPS

FP32 (float)

2.720 TFLOPS

-

FP64 (double)

544.0 GFLOPS

Board Design

30W

TDP

175W

200 W

Suggested PSU

450 W

1x DVI 1x VGA 1x S-Video

Outputs

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

None

Power Connectors

2x 6-pin

Graphics Processor

RV620

GPU Name

Cypress

RV620 PRO (215-0670006)

GPU Variant

Cypress XT (215-0735033)

TeraScale

Architecture

TeraScale 2

TSMC

Foundry

TSMC

55 nm

Process Size

40 nm

0.181 billion

Transistors

2.154 billion

67 mm²

Die Size

334 mm²

Graphics Features

10.1 (10_1)

DirectX

11.2 (11_0)

3.3

OpenGL

4.4

N/A

OpenCL

1.2

N/A

Vulkan

N/A

-

4.1

Shader Model

5.0

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