ATI Radeon HD 4450 vs AMD Radeon HD 6490

VS

ATI Radeon HD 4450

AMD Radeon HD 6490

We compared two Desktop platform GPUs: 512MB VRAM Radeon HD 4450 and 1024MB VRAM Radeon HD 6490 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

ATI Radeon HD 4450 's Advantages

Lower TDP (25W vs 39W)

AMD Radeon HD 6490 's Advantages

More VRAM (1024GB vs 512GB)

Larger VRAM bandwidth (16.00GB/s vs 6.400GB/s)

240 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 4450

0.096 TFLOPS

Radeon HD 6490 +266%

0.352 TFLOPS

Radeon HD 4450

VS

Radeon HD 6490

Graphics Card

Nov 2011

Release Date

Jul 2011

Radeon R700

Generation

Northern Islands

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

400 MHz

Memory Clock

500 MHz

Memory

512MB

Memory Size

1024MB

DDR2

Memory Type

DDR2

64bit

Memory Bus

128bit

6.400GB/s

Bandwidth

16.00GB/s

Render Config

1

Compute Units

4

-

80

Shading Units

320

8

TMUs

16

4

ROPs

8

-

16 KB (per CU)

L1 Cache

8 KB (per CU)

64 KB

L2 Cache

256 KB

-

Theoretical Performance

2.400 GPixel/s

Pixel Rate

4.400 GPixel/s

4.800 GTexel/s

Texture Rate

8.800 GTexel/s

-

96.00 GFLOPS

FP32 (float)

352.0 GFLOPS

-

Board Design

25W

TDP

39W

200 W

Suggested PSU

200 W

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

Outputs

1x DVI 1x HDMI 1.3a 1x VGA

None

Power Connectors

None

Graphics Processor

RV710

GPU Name

Redwood

RV710 (215-0725016)

GPU Variant

Redwood LE

TeraScale

Architecture

TeraScale 2

TSMC

Foundry

TSMC

55 nm

Process Size

40 nm

0.242 billion

Transistors

0.627 billion

73 mm²

Die Size

104 mm²

Graphics Features

10.1 (10_1)

DirectX

11.2 (11_0)

3.3

OpenGL

4.4

1.1

OpenCL

1.2

N/A

Vulkan

N/A

-

4.1

Shader Model

5.0

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