AMD Radeon HD 6850 vs ATI Radeon HD 5670

VS

AMD Radeon HD 6850

ATI Radeon HD 5670

We compared two Desktop platform GPUs: 1024MB VRAM Radeon HD 6850 and 1024MB VRAM Radeon HD 5670 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 6850 's Advantages

Released 9 months late

Larger VRAM bandwidth (128.0GB/s vs 64.00GB/s)

560 additional rendering cores

ATI Radeon HD 5670 's Advantages

Lower TDP (64W vs 127W)

Score

Benchmark

FP32 (float)

Radeon HD 6850 +140%

1.488 TFLOPS

Radeon HD 5670

0.62 TFLOPS

Radeon HD 6850

VS

Radeon HD 5670

Graphics Card

Oct 2010

Release Date

Jan 2010

Northern Islands

Generation

Evergreen

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

1000 MHz

Memory Clock

1000 MHz

Memory

1024MB

Memory Size

1024MB

GDDR5

Memory Type

GDDR5

256bit

Memory Bus

128bit

128.0GB/s

Bandwidth

64.00GB/s

Render Config

12

Compute Units

5

-

960

Shading Units

400

48

TMUs

20

32

ROPs

8

-

8 KB (per CU)

L1 Cache

8 KB (per CU)

512 KB

L2 Cache

256 KB

-

Theoretical Performance

24.80 GPixel/s

Pixel Rate

6.200 GPixel/s

37.20 GTexel/s

Texture Rate

15.50 GTexel/s

-

1488 GFLOPS

FP32 (float)

620.0 GFLOPS

-

Board Design

127W

TDP

64W

300 W

Suggested PSU

250 W

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

Outputs

1x DVI 1x HDMI 1.3a 1x VGA

1x 6-pin

Power Connectors

None

Graphics Processor

Barts

GPU Name

Redwood

Barts PRO (215-0798006)

GPU Variant

Redwood XT (215-0757002)

TeraScale 2

Architecture

TeraScale 2

TSMC

Foundry

TSMC

40 nm

Process Size

40 nm

1.7 billion

Transistors

0.627 billion

255 mm²

Die Size

104 mm²

Graphics Features

11.2 (11_0)

DirectX

11.2 (11_0)

4.4

OpenGL

4.4

1.2

OpenCL

1.2

N/A

Vulkan

N/A

-

5.0

Shader Model

5.0

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