AMD Radeon HD 6850 X2 vs ATI Radeon HD 4730 OEM

VS

AMD Radeon HD 6850 X2

ATI Radeon HD 4730 OEM

We compared two Desktop platform GPUs: 2GB VRAM Radeon HD 6850 X2 and 1024MB VRAM Radeon HD 4730 OEM to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 6850 X2 's Advantages

Released 2 years and 9 months late

More VRAM (2GB vs 1024GB)

Larger VRAM bandwidth (134.4GB/s vs 25.34GB/s)

640 additional rendering cores

ATI Radeon HD 4730 OEM 's Advantages

Lower TDP (110W vs 254W)

Score

Benchmark

FP32 (float)

Radeon HD 6850 X2 +258%

1.536 TFLOPS

Radeon HD 4730 OEM

0.428 TFLOPS

Radeon HD 6850 X2

VS

Radeon HD 4730 OEM

Graphics Card

Sep 2011

Release Date

Dec 2008

Northern Islands

Generation

Radeon R700

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

1050 MHz

Memory Clock

396 MHz

Memory

2GB

Memory Size

1024MB

GDDR5

Memory Type

DDR2

256bit

Memory Bus

256bit

134.4GB/s

Bandwidth

25.34GB/s

Render Config

12

Compute Units

4

-

960

Shading Units

320

48

TMUs

16

32

ROPs

16

-

8 KB (per CU)

L1 Cache

-

512 KB

L2 Cache

256 KB

-

Theoretical Performance

25.60 GPixel/s

Pixel Rate

10.70 GPixel/s

38.40 GTexel/s

Texture Rate

10.70 GTexel/s

-

1.536 TFLOPS

FP32 (float)

428.2 GFLOPS

-

FP64 (double)

85.63 GFLOPS

Board Design

254W

TDP

110W

600 W

Suggested PSU

300 W

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

Outputs

2x DVI 1x S-Video

2x 8-pin

Power Connectors

-

Graphics Processor

Barts

GPU Name

RV670

Barts PRO (215-0798006)

GPU Variant

-

TeraScale 2

Architecture

TeraScale

TSMC

Foundry

TSMC

40 nm

Process Size

55 nm

1.7 billion

Transistors

0.666 billion

255 mm²

Die Size

192 mm²

Graphics Features

11.2 (11_0)

DirectX

10.1 (10_1)

4.4

OpenGL

3.3 (full) 4.0 (partial)

1.2

OpenCL

N/A

Vulkan

N/A

-

5.0

Shader Model

4.1

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