AMD Radeon HD 6490 vs ATI Radeon HD 5450 PCIe x1

VS

AMD Radeon HD 6490

ATI Radeon HD 5450 PCIe x1

We compared two Desktop platform GPUs: 1024MB VRAM Radeon HD 6490 and 512MB VRAM Radeon HD 5450 PCIe x1 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 6490 's Advantages

Released 1 years and 5 months late

More VRAM (1024GB vs 512GB)

Larger VRAM bandwidth (16.00GB/s vs 8.000GB/s)

240 additional rendering cores

ATI Radeon HD 5450 PCIe x1 's Advantages

Lower TDP (19W vs 39W)

Score

Benchmark

FP32 (float)

Radeon HD 6490 +238%

0.352 TFLOPS

Radeon HD 5450 PCIe x1

0.104 TFLOPS

Radeon HD 6490

VS

Radeon HD 5450 PCIe x1

Graphics Card

Jul 2011

Release Date

Feb 2010

Northern Islands

Generation

Evergreen

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 2.0 x1

Clock Speeds

-

500 MHz

Memory Clock

500 MHz

Memory

1024MB

Memory Size

512MB

DDR2

Memory Type

DDR3

128bit

Memory Bus

64bit

16.00GB/s

Bandwidth

8.000GB/s

Render Config

4

Compute Units

2

-

320

Shading Units

80

16

TMUs

8

ROPs

4

-

8 KB (per CU)

L1 Cache

8 KB (per CU)

256 KB

L2 Cache

128 KB

-

Theoretical Performance

4.400 GPixel/s

Pixel Rate

2.600 GPixel/s

8.800 GTexel/s

Texture Rate

5.200 GTexel/s

-

352.0 GFLOPS

FP32 (float)

104.0 GFLOPS

-

Board Design

39W

TDP

19W

200 W

Suggested PSU

200 W

1x DVI 1x HDMI 1.3a 1x VGA

Outputs

1x DVI 1x HDMI 1.3a 1x VGA

None

Power Connectors

-

Graphics Processor

Redwood

GPU Name

Cedar

Redwood LE

GPU Variant

Cedar PRO

TeraScale 2

Architecture

TeraScale 2

TSMC

Foundry

TSMC

40 nm

Process Size

40 nm

0.627 billion

Transistors

0.292 billion

104 mm²

Die Size

59 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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