AMD Radeon HD 6970 X2 vs ATI Radeon HD 3470

VS

AMD Radeon HD 6970 X2

ATI Radeon HD 3470

We compared two Desktop platform GPUs: 2GB VRAM Radeon HD 6970 X2 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 6970 X2 's Advantages

More VRAM (2GB vs 256GB)

Larger VRAM bandwidth (176.0GB/s vs 15.20GB/s)

1496 additional rendering cores

ATI Radeon HD 3470 's Advantages

Lower TDP (30W vs 375W)

Score

Benchmark

FP32 (float)

Radeon HD 6970 X2 +4123%

2.703 TFLOPS

Radeon HD 3470

0.064 TFLOPS

Radeon HD 6970 X2

VS

Radeon HD 3470

Graphics Card

Unknown

Release Date

Jan 2008

Northern Islands

Generation

Radeon R600

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

1375 MHz

Memory Clock

950 MHz

Memory

2GB

Memory Size

256MB

GDDR5

Memory Type

GDDR3

256bit

Memory Bus

64bit

176.0GB/s

Bandwidth

15.20GB/s

Render Config

24

Compute Units

2

-

1536

Shading Units

40

96

TMUs

4

32

ROPs

4

-

8 KB (per CU)

L1 Cache

-

512 KB

L2 Cache

64 KB

-

Theoretical Performance

28.16 GPixel/s

Pixel Rate

3.200 GPixel/s

84.48 GTexel/s

Texture Rate

3.200 GTexel/s

-

2.703 TFLOPS

FP32 (float)

64.00 GFLOPS

-

Board Design

375W

TDP

30W

750 W

Suggested PSU

200 W

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

Outputs

1x DVI 1x VGA 1x S-Video

3x 8-pin

Power Connectors

None

Graphics Processor

Antilles

GPU Name

RV620

Antilles XT (215-0807027)

GPU Variant

RV620 PRO (215-0670006)

TeraScale 3

Architecture

TeraScale

TSMC

Foundry

TSMC

40 nm

Process Size

55 nm

2.64 billion

Transistors

0.181 billion

389 mm²

Die Size

67 mm²

Graphics Features

11.2 (11_0)

DirectX

10.1 (10_1)

4.4

OpenGL

3.3

1.2

OpenCL

N/A

Vulkan

N/A

-

5.0

Shader Model

4.1

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