AMD Radeon HD 6870 X2 vs ATI Radeon HD 3730

VS

AMD Radeon HD 6870 X2 ATI Radeon HD 3730

We compared two Desktop platform GPUs: 1024MB VRAM Radeon HD 6870 X2 and 512MB VRAM Radeon HD 3730 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 6870 X2 's Advantages

Released 2 years and 9 months late

More VRAM (1024GB vs 512GB)

Larger VRAM bandwidth (134.4GB/s vs 12.67GB/s)

1000 additional rendering cores

ATI Radeon HD 3730 's Advantages

Lower TDP (65W vs 300W)

Score

Benchmark

FP32 (float)

Radeon HD 6870 X2 +1065%

2.016 TFLOPS

Radeon HD 3730

0.173 TFLOPS

Radeon HD 6870 X2

VS

Radeon HD 3730

Graphics Card

Jul 2011

Release Date

Oct 2008

Northern Islands

Generation

Radeon R600

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

Base Clock

-

Boost Clock

-

1050 MHz

Memory Clock

396 MHz

Memory

1024MB

Memory Size

512MB

GDDR5

Memory Type

DDR2

256bit

Memory Bus

128bit

134.4GB/s

Bandwidth

12.67GB/s

Render Config

-

SM Count

-

14

Compute Units

3

1120

Shading Units

120

56

TMUs

8

32

ROPs

4

-

Tensor Cores

-

RT Cores

-

8 KB (per CU)

L1 Cache

-

512 KB

L2 Cache

128 KB

Theoretical Performance

28.80 GPixel/s

Pixel Rate

2.888 GPixel/s

50.40 GTexel/s

Texture Rate

5.776 GTexel/s

-

FP16 (half)

-

2.016 TFLOPS

FP32 (float)

173.3 GFLOPS

-

FP64 (double)

-

Graphics Processor

Barts

GPU Name

RV635

Barts XT (215-0798000)

GPU Variant

RV635 PRO (215-0682008)

TeraScale 2

Architecture

TeraScale

TSMC

Foundry

TSMC

40 nm

Process Size

55 nm

1.7 billion

Transistors

0.378 billion

255 mm²

Die Size

135 mm²

Board Design

300W

TDP

65W

700 W

Suggested PSU

250 W

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

Outputs

2x DVI 1x S-Video

-

Power Connectors

None

Graphics Features

11.2 (11_0)

DirectX

10.1 (10_1)

4.4

OpenGL

3.3

1.2

OpenCL

N/A

Vulkan

N/A

-

CUDA

-

5.0

Shader Model

4.1

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