AMD Radeon HD 7970 GHz Edition vs ATI Radeon HD 3470

VS

AMD Radeon HD 7970 GHz Edition

ATI Radeon HD 3470

We compared two Desktop platform GPUs: 3GB VRAM Radeon HD 7970 GHz Edition and 256MB VRAM Radeon HD 3470 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 7970 GHz Edition 's Advantages

Released 4 years and 5 months late

Boost Clock1050MHz

More VRAM (3GB vs 256GB)

Larger VRAM bandwidth (288.0GB/s vs 15.20GB/s)

2008 additional rendering cores

ATI Radeon HD 3470 's Advantages

Lower TDP (30W vs 300W)

Score

Benchmark

FP32 (float)

Radeon HD 7970 GHz Edition +6620%

4.301 TFLOPS

Radeon HD 3470

0.064 TFLOPS

Radeon HD 7970 GHz Edition

VS

Radeon HD 3470

Graphics Card

Jun 2012

Release Date

Jan 2008

Southern Islands

Generation

Radeon R600

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

1000 MHz

Base Clock

-

1050 MHz

Boost Clock

-

1500 MHz

Memory Clock

950 MHz

Memory

3GB

Memory Size

256MB

GDDR5

Memory Type

GDDR3

384bit

Memory Bus

64bit

288.0GB/s

Bandwidth

15.20GB/s

Render Config

32

Compute Units

2

-

2048

Shading Units

40

128

TMUs

4

32

ROPs

4

-

16 KB (per CU)

L1 Cache

-

768 KB

L2 Cache

64 KB

-

Theoretical Performance

33.60 GPixel/s

Pixel Rate

3.200 GPixel/s

134.4 GTexel/s

Texture Rate

3.200 GTexel/s

-

4.301 TFLOPS

FP32 (float)

64.00 GFLOPS

1075 GFLOPS

FP64 (double)

-

Board Design

300W

TDP

30W

700 W

Suggested PSU

200 W

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

Outputs

1x DVI 1x VGA 1x S-Video

1x 6-pin + 1x 8-pin

Power Connectors

None

Graphics Processor

Tahiti

GPU Name

RV620

Tahiti XT2 (215-0821065)

GPU Variant

RV620 PRO (215-0670006)

GCN 1.0

Architecture

TeraScale

TSMC

Foundry

TSMC

28 nm

Process Size

55 nm

4.313 billion

Transistors

0.181 billion

352 mm²

Die Size

67 mm²

Graphics Features

12 (11_1)

DirectX

10.1 (10_1)

4.6

OpenGL

3.3

1.2

OpenCL

N/A

1.2

Vulkan

N/A

-

5.1

Shader Model

4.1

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