AMD Radeon HD 6490 vs ATI Radeon HD 3450 AGP

VS

AMD Radeon HD 6490

ATI Radeon HD 3450 AGP

We compared two Desktop platform GPUs: 1024MB VRAM Radeon HD 6490 and 512MB VRAM Radeon HD 3450 AGP to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 6490 's Advantages

Released 3 years and 6 months late

More VRAM (1024GB vs 512GB)

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

280 additional rendering cores

ATI Radeon HD 3450 AGP 's Advantages

Lower TDP (25W vs 39W)

Score

Benchmark

FP32 (float)

Radeon HD 6490 +633%

0.352 TFLOPS

Radeon HD 3450 AGP

0.048 TFLOPS

Radeon HD 6490

VS

Radeon HD 3450 AGP

Graphics Card

Jul 2011

Release Date

Jan 2008

Northern Islands

Generation

Radeon R600

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

AGP 8x

Clock Speeds

-

500 MHz

Memory Clock

500 MHz

Memory

1024MB

Memory Size

512MB

DDR2

Memory Type

DDR2

128bit

Memory Bus

64bit

16.00GB/s

Bandwidth

8.000GB/s

Render Config

4

Compute Units

2

-

320

Shading Units

40

16

TMUs

4

8

ROPs

4

-

8 KB (per CU)

L1 Cache

-

256 KB

L2 Cache

64 KB

-

Theoretical Performance

4.400 GPixel/s

Pixel Rate

2.400 GPixel/s

8.800 GTexel/s

Texture Rate

2.400 GTexel/s

-

352.0 GFLOPS

FP32 (float)

48.00 GFLOPS

-

Board Design

39W

TDP

25W

200 W

Suggested PSU

200 W

1x DVI 1x HDMI 1.3a 1x VGA

Outputs

2x DVI

None

Power Connectors

1x Molex

Graphics Processor

Redwood

GPU Name

RV620

Redwood LE

GPU Variant

RV620 LE

TeraScale 2

Architecture

TeraScale

TSMC

Foundry

TSMC

40 nm

Process Size

55 nm

0.627 billion

Transistors

0.181 billion

104 mm²

Die Size

67 mm²

Graphics Features

11.2 (11_0)

DirectX

10.1 (10_1)

4.4

OpenGL

3.3

1.2

OpenCL

N/A

Vulkan

N/A

-

5.0

Shader Model

4.1

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