AMD Radeon HD 6850 X2 vs ATI Radeon HD 4550

VS

AMD Radeon HD 6850 X2

ATI Radeon HD 4550

We compared two Desktop platform GPUs: 2GB VRAM Radeon HD 6850 X2 and 256MB VRAM Radeon HD 4550 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 3 years late

More VRAM (2GB vs 256GB)

Larger VRAM bandwidth (134.4GB/s vs 10.48GB/s)

880 additional rendering cores

ATI Radeon HD 4550 's Advantages

Lower TDP (25W vs 254W)

Score

Benchmark

FP32 (float)

Radeon HD 6850 X2 +1500%

1.536 TFLOPS

Radeon HD 4550

0.096 TFLOPS

Radeon HD 6850 X2

VS

Radeon HD 4550

Graphics Card

Sep 2011

Release Date

Sep 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

655 MHz

Memory

2GB

Memory Size

256MB

GDDR5

Memory Type

DDR2

256bit

Memory Bus

64bit

134.4GB/s

Bandwidth

10.48GB/s

Render Config

12

Compute Units

1

-

960

Shading Units

80

48

TMUs

8

32

ROPs

4

-

8 KB (per CU)

L1 Cache

16 KB (per CU)

512 KB

L2 Cache

64 KB

-

Theoretical Performance

25.60 GPixel/s

Pixel Rate

2.400 GPixel/s

38.40 GTexel/s

Texture Rate

4.800 GTexel/s

-

1.536 TFLOPS

FP32 (float)

96.00 GFLOPS

-

Board Design

254W

TDP

25W

600 W

Suggested PSU

200 W

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

Outputs

1x DVI 1x HDMI 1.3a 1x DisplayPort 1.0

2x 8-pin

Power Connectors

None

Graphics Processor

Barts

GPU Name

RV710

Barts PRO (215-0798006)

GPU Variant

RV710 (215-0725016)

TeraScale 2

Architecture

TeraScale

TSMC

Foundry

TSMC

40 nm

Process Size

55 nm

1.7 billion

Transistors

0.242 billion

255 mm²

Die Size

73 mm²

Graphics Features

11.2 (11_0)

DirectX

10.1 (10_1)

4.4

OpenGL

3.3

1.2

OpenCL

1.1

N/A

Vulkan

N/A

-

5.0

Shader Model

4.1

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