AMD Radeon HD 6490 vs AMD Radeon HD 6770 Green Edition

VS

AMD Radeon HD 6490

AMD Radeon HD 6770 Green Edition

We compared two Desktop platform GPUs: 1024MB VRAM Radeon HD 6490 and 2GB VRAM Radeon HD 6770 Green Edition to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 6490 's Advantages

Lower TDP (39W vs 86W)

AMD Radeon HD 6770 Green Edition 's Advantages

Released 1 years and 9 months late

More VRAM (2GB vs 1024GB)

Larger VRAM bandwidth (21.34GB/s vs 16.00GB/s)

400 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 6490

0.352 TFLOPS

Radeon HD 6770 Green Edition +186%

1.008 TFLOPS

Radeon HD 6490

VS

Radeon HD 6770 Green Edition

Graphics Card

Jul 2011

Release Date

Apr 2013

Northern Islands

Generation

Northern Islands

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

500 MHz

Memory Clock

667 MHz

Memory

1024MB

Memory Size

2GB

DDR2

Memory Type

GDDR3

128bit

Memory Bus

128bit

16.00GB/s

Bandwidth

21.34GB/s

Render Config

4

Compute Units

9

-

320

Shading Units

720

16

TMUs

36

8

ROPs

16

-

8 KB (per CU)

L1 Cache

8 KB (per CU)

256 KB

L2 Cache

256 KB

-

Theoretical Performance

4.400 GPixel/s

Pixel Rate

11.20 GPixel/s

8.800 GTexel/s

Texture Rate

25.20 GTexel/s

-

352.0 GFLOPS

FP32 (float)

1008 GFLOPS

-

Board Design

39W

TDP

86W

200 W

Suggested PSU

250 W

1x DVI 1x HDMI 1.3a 1x VGA

Outputs

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

None

Power Connectors

-

Graphics Processor

Redwood

GPU Name

Juniper

Redwood LE

GPU Variant

Juniper LE (215-0754009)

TeraScale 2

Architecture

TeraScale 2

TSMC

Foundry

TSMC

40 nm

Process Size

40 nm

0.627 billion

Transistors

1.04 billion

104 mm²

Die Size

166 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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