AMD Radeon HD 6850 vs AMD Radeon HD 6490

VS

AMD Radeon HD 6850

AMD Radeon HD 6490

We compared two Desktop platform GPUs: 1024MB VRAM Radeon HD 6850 and 1024MB VRAM Radeon HD 6490 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 6850 's Advantages

Larger VRAM bandwidth (128.0GB/s vs 16.00GB/s)

640 additional rendering cores

AMD Radeon HD 6490 's Advantages

Released 9 months late

Lower TDP (39W vs 127W)

Score

Benchmark

FP32 (float)

Radeon HD 6850 +322%

1.488 TFLOPS

Radeon HD 6490

0.352 TFLOPS

Radeon HD 6850

VS

Radeon HD 6490

Graphics Card

Oct 2010

Release Date

Jul 2011

Northern Islands

Generation

Northern Islands

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

1000 MHz

Memory Clock

500 MHz

Memory

1024MB

Memory Size

1024MB

GDDR5

Memory Type

DDR2

256bit

Memory Bus

128bit

128.0GB/s

Bandwidth

16.00GB/s

Render Config

12

Compute Units

4

-

960

Shading Units

320

48

TMUs

16

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

4.400 GPixel/s

37.20 GTexel/s

Texture Rate

8.800 GTexel/s

-

1488 GFLOPS

FP32 (float)

352.0 GFLOPS

-

Board Design

127W

TDP

39W

300 W

Suggested PSU

200 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 LE

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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